SMD code search: identify a part by its marking
1 part is printed 2C20. 5 printed with a similar-looking code.
Not sure which one you have?
Answer up to 4 quick questions and these 6 parts are ranked, with a meter test that settles it. It works on a dead part too.
The only part printed 2C20 in our tables
SMA2EZ20D5
- What it is
- Zener diode
- Maker
- Micro Commercial Components
- Package
- SMA
- Pins
- 2
- Details
- Zener diode, 24 V
- Source
- Published code list
Is it dead?
Diode range for the forward check, part lifted, red probe on the anode. A bench supply for the Zener voltage.
Working, it reads
About 0.6 to 0.8 V forward and open in reverse on the diode range. Its Zener voltage shows only on a supply: feed it through a resistor that sets about 5 mA, cathode to positive, read quickly, and it should hold near its rated voltage.
Dead, it reads
- The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
- Open both ways, forward too: failed open.
- Holds well off its rated voltage on the supply test: drifted.
- A soft knee, or a voltage that creeps on the supply test: leaky.
- On the board
- this is a first look only: the meter reads every path between those pins, and a short can be a neighbour. Lift one leg before you condemn it.
- Compare:
- If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
- Watch for:
- A meter's diode range stops at about 2 to 3 V, so almost every Zener reads open in reverse on it, good or bad; a 3 V meter may just show a 2.4 or 2.7 V part. Above about 3 V the meter cannot tell a Zener from a plain diode.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Was it this one?
Printed with a code easy to misread
These parts are printed with a character that is easy to misread as what you typed. The odd one out is marked on each.
BZG05C20printed ZG20SMAZener diode, 2 pins, Galaxy MicroelectronicsZener diodeSMA2 pinsGalaxy Microelectronics
Printed ZG20 on the part. Easy to misread as 2C20. Check that character with a loupe before you order anything.
- What it is
- Zener diode
- Maker
- Galaxy Microelectronics
- Package
- SMA
- Pins
- 2
- Details
- 20V, 5%, Surface Mount Zener Diodes
- Source
- Manufacturer datasheet
Is it dead?
Diode range for the forward check, part lifted, red probe on the anode. A bench supply for the Zener voltage.
Working, it reads
About 0.6 to 0.8 V forward and open in reverse on the diode range. Its Zener voltage shows only on a supply: feed it through a resistor that sets about 5 mA, cathode to positive, read quickly, and it should hold near its rated voltage.
Dead, it reads
- The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
- Open both ways, forward too: failed open.
- Holds well off its rated voltage on the supply test: drifted.
- A soft knee, or a voltage that creeps on the supply test: leaky.
- On the board
- this is a first look only: the meter reads every path between those pins, and a short can be a neighbour. Lift one leg before you condemn it.
- Compare:
- If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
- Watch for:
- A meter's diode range stops at about 2 to 3 V, so almost every Zener reads open in reverse on it, good or bad; a 3 V meter may just show a 2.4 or 2.7 V part. Above about 3 V the meter cannot tell a Zener from a plain diode.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
G2620P11Uprinted 2620SOIC-8LED driver, 8 pins, Global Mixed-mode TechnologyLED driverSOIC-88 pinsGlobal Mixed-mode Technology
Printed 2620 on the part. Easy to misread as 2C20. Check that character with a loupe before you order anything.
- What it is
- LED driver
- Maker
- Global Mixed-mode Technology
- Package
- SOIC-8
- Pins
- 8
- Details
- High Efficiency, Constant Current 36V, 1A LED Driver with Internal Switch Feature Operating Voltage: 7V to 36V Output dr
- Source
- Manufacturer datasheet
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
G2620T11Uprinted 2620SOT-23-5LED driver, 5 pins, Global Mixed-mode TechnologyLED driverSOT-23-55 pinsGlobal Mixed-mode Technology
Printed 2620 on the part. Easy to misread as 2C20. Check that character with a loupe before you order anything.
- What it is
- LED driver
- Maker
- Global Mixed-mode Technology
- Package
- SOT-23-5
- Pins
- 5
- Details
- High Efficiency, Constant Current 36V, 1A LED Driver with Internal Switch Feature Operating Voltage: 7V to 36V Output dr
- Source
- Manufacturer datasheet
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
G2620TE1Uprinted 2620SOT-89-5LED driver, 5 pins, Global Mixed-mode TechnologyLED driverSOT-89-55 pinsGlobal Mixed-mode Technology
Printed 2620 on the part. Easy to misread as 2C20. Check that character with a loupe before you order anything.
- What it is
- LED driver
- Maker
- Global Mixed-mode Technology
- Package
- SOT-89-5
- Pins
- 5
- Details
- High Efficiency, Constant Current 36V, 1A LED Driver with Internal Switch Feature Operating Voltage: 7V to 36V Output dr
- Source
- Manufacturer datasheet
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
TBZG05C20printed ZG20SMAZener diode, 2 pins, Galaxy MicroelectronicsZener diodeSMA2 pinsGalaxy Microelectronics
Printed ZG20 on the part. Easy to misread as 2C20. Check that character with a loupe before you order anything.
- What it is
- Zener diode
- Maker
- Galaxy Microelectronics
- Package
- SMA
- Pins
- 2
- Details
- 20V, 5%, Surface Mount Zener Diodes
- Source
- Manufacturer datasheet
Is it dead?
Diode range for the forward check, part lifted, red probe on the anode. A bench supply for the Zener voltage.
Working, it reads
About 0.6 to 0.8 V forward and open in reverse on the diode range. Its Zener voltage shows only on a supply: feed it through a resistor that sets about 5 mA, cathode to positive, read quickly, and it should hold near its rated voltage.
Dead, it reads
- The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
- Open both ways, forward too: failed open.
- Holds well off its rated voltage on the supply test: drifted.
- A soft knee, or a voltage that creeps on the supply test: leaky.
- On the board
- this is a first look only: the meter reads every path between those pins, and a short can be a neighbour. Lift one leg before you condemn it.
- Compare:
- If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
- Watch for:
- A meter's diode range stops at about 2 to 3 V, so almost every Zener reads open in reverse on it, good or bad; a 3 V meter may just show a 2.4 or 2.7 V part. Above about 3 V the meter cannot tell a Zener from a plain diode.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
13 more parts have codes that begin with 2C20
Codes that begin with 2C20
For a marking with its end worn or burnt off. Each one shows its full printed code.
XC6365C201ERprinted 2C201USP-6CDC-DC converter, 6 pins, TorexDC-DC converterUSP-6C6 pinsTorex
Printed 2C201. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6C
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM st-dwn, 100kHz, 2.0V±2.5%, 1A, +CE, soft start
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC6365C202ERprinted 2C202USP-6CDC-DC converter, 6 pins, TorexDC-DC converterUSP-6C6 pinsTorex
Printed 2C202. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6C
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM st-dwn, 180kHz, 2.0V±2.5%, 1A, +CE, soft start
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC6365C203ERprinted 2C203USP-6CDC-DC converter, 6 pins, TorexDC-DC converterUSP-6C6 pinsTorex
Printed 2C203. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6C
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM st-dwn, 300kHz, 2.0V±2.5%, 1A, +CE, soft start
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC6365C205ERprinted 2C205USP-6CDC-DC converter, 6 pins, TorexDC-DC converterUSP-6C6 pinsTorex
Printed 2C205. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6C
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM st-dwn, 500kHz, 2.0V±2.5%, 1A, +CE, soft start
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC6372C200Dprinted 2C200USP-6BDC-DC converter, 6 pins, TorexDC-DC converterUSP-6B6 pinsTorex
Printed 2C200. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6B
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM/PFM st-up, 50kHz, 2.0V±2.5%, 100mA, +CE
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC6372C201Dprinted 2C201USP-6BDC-DC converter, 6 pins, TorexDC-DC converterUSP-6B6 pinsTorex
Printed 2C201. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6B
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM/PFM st-up, 100kHz, 2.0V±2.5%, 100mA, +CE
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC6372C202Dprinted 2C202USP-6BDC-DC converter, 6 pins, TorexDC-DC converterUSP-6B6 pinsTorex
Printed 2C202. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6B
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM/PFM st-up, 180kHz, 2.0V±2.5%, 100mA, +CE
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC9225C2D6Dprinted ZC2D6USP-6BDC-DC converter, 6 pins, TorexDC-DC converterUSP-6B6 pinsTorex
Printed ZC2D6. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6B
- Pins
- 6
- Details
- DC/DC voltage converter IC: PW M st-dwn, 600kHz, 2.35V±1%, 600mA, +CE, PDR
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC9225C2DCDprinted ZC2DCUSP-6BDC-DC converter, 6 pins, TorexDC-DC converterUSP-6B6 pinsTorex
Printed ZC2DC. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6B
- Pins
- 6
- Details
- DC/DC voltage converter IC: PW M st-dwn, 1.2MHz, 2.35V±1%, 600mA, +CE, PDR
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC9225C20CDprinted ZC20CUSP-6BDC-DC converter, 6 pins, TorexDC-DC converterUSP-6B6 pinsTorex
Printed ZC20C. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6B
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM st-dwn, 1.2MHz, 2.0V±1%, 600mA, +CE, PDR
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
XC9225C206Dprinted ZC206USP-6BDC-DC converter, 6 pins, TorexDC-DC converterUSP-6B6 pinsTorex
Printed ZC206. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- DC-DC converter
- Maker
- Torex
- Package
- USP-6B
- Pins
- 6
- Details
- DC/DC voltage converter IC: PWM st-dwn, 600kHz, 2.0V±1%, 600mA, +CE, PDR
- Source
- Published code list
Is it dead?
Voltage with the board powered; ohms from each pin to ground with it off.
Working, it reads
Supply pin at its voltage and the output doing what the datasheet says. Readings between pins depend on the part.
Dead, it reads
- A pin near 0 Ω to ground or to the supply pin where an identical part does not read that: failed short.
- Supply present, output stuck: failed, or its load has.
- On the board:
- A pin shorted to ground on the board can be anything on that net. Lift the pin to be sure.
- Compare:
- The surest reference is the same IC on a working board, measured pin by pin.
- Watch for:
- Its protection diodes can read like junctions between pins, even like a transistor. That proves nothing either way.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
2 more parts have no package on record
LR32620BG-AG6printed 2620GLDO regulator, UnisonicLDO regulatorNot recordedNot recordedUnisonic
Printed 2620G. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- LDO regulator
- Maker
- Unisonic
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, Dual out, Vout1/Vout2=2.6V/2.0V±0.5%, 150mA, +CE, H-free
- Source
- Published code list
Is it dead?
Voltage, board powered, black probe on ground. Then ohms with the power off.
Working, it reads
Input pin at the supply, output pin at its rated voltage, and the enable pin high if it has one.
Dead, it reads
- Output equal to the input: the pass element has shorted. Everything after it may have taken the full input.
- Input present, enable high, no output: failed open, or holding itself off into a shorted load. Power off and measure output to ground.
- Power off, input to output near 0 Ω: shorted.
- On the board:
- An output at 0 V is often a shorted load with the regulator in current limit. Lift the output pin: if the short stays on the board, the regulator may be fine.
- Compare:
- The same regulator on another rail or another board shows the right voltages and the right resistances.
- Watch for:
- Makers put input, output and ground on different pins in the same package, so take them from this part's datasheet. Diode or ohms readings between its pins say little; check it powered.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
LR32620BL-AG6printed 2620LLDO regulator, UnisonicLDO regulatorNot recordedNot recordedUnisonic
Printed 2620L. Only the start matches what you typed, so this fits only if the rest of the marking is worn off.
- What it is
- LDO regulator
- Maker
- Unisonic
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Linear voltage regulator IC: LDO, Dual out, Vout1/Vout2=2.6V/2.0V±0.5%, 150mA, +CE, L-free
- Source
- Published code list
Is it dead?
Voltage, board powered, black probe on ground. Then ohms with the power off.
Working, it reads
Input pin at the supply, output pin at its rated voltage, and the enable pin high if it has one.
Dead, it reads
- Output equal to the input: the pass element has shorted. Everything after it may have taken the full input.
- Input present, enable high, no output: failed open, or holding itself off into a shorted load. Power off and measure output to ground.
- Power off, input to output near 0 Ω: shorted.
- On the board:
- An output at 0 V is often a shorted load with the regulator in current limit. Lift the output pin: if the short stays on the board, the regulator may be fine.
- Compare:
- The same regulator on another rail or another board shows the right voltages and the right resistances.
- Watch for:
- Makers put input, output and ground on different pins in the same package, so take them from this part's datasheet. Diode or ohms readings between its pins say little; check it powered.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
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One code, several parts
Marking codes are not unique. In the standard code book, 6H on a SOT-23 is an NPN transistor, a varicap, an N-channel JFET, two digital transistors, a 3.6 V voltage detector: six parts from five makers. So a search on WhatSMD (What SMD) shows the parts we hold under that code and under codes easily misread as it, with only the columns that tell them apart.
- NPN transistor
- Varicap
- N-channel JFET
- Digital transistor ×2
- 3.6 V voltage detector
When more than one is left
Tap Help me choose. Up to 4 quick answers: whether the part has failed, then what separates the parts left. Those get ranked with the reasoning and a test that settles it. That uses one identification: 2 a month are free without an account, and 3 with a free account.
When you cannot read it
Tap the camera in the field. We read the characters, keep the ones we are unsure of, and search every reading. A photo too soft to read is turned back on your phone first; if it is the only one you can get, you can still send it.
Get the app
The same search on your phone, and a camera with a light, zoom and tap to focus for a marking you cannot read. Sign in with your email address to use the same account.
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