SMD code V1 in SOT-353
Marking codes are not standardised, and the same code is reused by unrelated makers for unrelated parts. Below is every part in our tables printed with it, and any printed with a code that is easy to misread as it, from the manufacturers' own marking tables and published code lists.
7 parts in SOT-353 are printed V1
Not sure which one you have?
Answer up to 4 quick questions and these 18 parts are ranked, with a meter test that settles it. It works on a dead part too.
L74VHC1G00DFSOT-3535 pins, LRCNot recordedSOT-3535 pinsLRC
- What it is
- Not recorded
- Maker
- LRC
- Package
- SOT-353
- Pins
- 5
- Details
- CMOS logic IC: 2-input NAND gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
NL17SZ16DFSOT-353Logic gate, 5 pins, onsemiLogic gateSOT-3535 pinsonsemi
- What it is
- Logic gate
- Maker
- onsemi
- Package
- SOT-353
- Pins
- 5
- Details
- Single Input Buffer
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
NL17SZ17DFSOT-353Logic gate, 5 pins, onsemiLogic gateSOT-3535 pinsonsemi
- What it is
- Logic gate
- Maker
- onsemi
- Package
- SOT-353
- Pins
- 5
- Details
- Single Non-Inverting Buffer with Schmitt Trigger
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
PESD3V3V4UGSOT-3535 pins, NexperiaNot recordedSOT-3535 pinsNexperia
- What it is
- Not recorded
- Maker
- Nexperia
- Package
- SOT-353
- Pins
- 5
- Source
- Published code list
Is it dead? The meter test is below: This part.
TC7SA00FSOT-3535 pins, ToshibaNot recordedSOT-3535 pinsToshiba
- What it is
- Not recorded
- Maker
- Toshiba
- Package
- SOT-353
- Pins
- 5
- Details
- CMOS-Logic: 2-input NAND gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
TC7SA00FUSOT-3535 pins, ToshibaNot recordedSOT-3535 pinsToshiba
- What it is
- Not recorded
- Maker
- Toshiba
- Package
- SOT-353
- Pins
- 5
- Details
- CMOS-Logic: 2-input NAND gate
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
MC74VHC1G00DFSOT-23-5Logic gate, 5 pins, onsemiLogic gateSOT-23-55 pinsonsemi
- What it is
- Logic gate
- Maker
- onsemi
- Package
- SOT-23-5
- Pins
- 5
- Details
- Single 2-Input NAND Gate
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Integrated circuit.
8 more parts have no package on record. Nothing rules them out, so they stay.
74LVC2G241GFNXPNot recordedNot recordedNot recordedNXP
- What it is
- Not recorded
- Maker
- NXP
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: Dual non-inverted bus buffer with 3-state output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
74LVC2G241GNNXPNot recordedNot recordedNot recordedNXP
- What it is
- Not recorded
- Maker
- NXP
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: Dual non-inverted bus buffer with 3-state output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
74LVC2G241GSNXPNot recordedNot recordedNot recordedNXP
- What it is
- Not recorded
- Maker
- NXP
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS logic IC: Dual non-inverted bus buffer with 3-state output
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
BD45312GVoltage supervisor, ROHMVoltage supervisorNot recordedNot recordedROHM
- What it is
- Voltage supervisor
- Maker
- ROHM
- Package
- Not recorded
- Pins
- Not recorded
- Details
- CMOS-IC: Voltage Detector 3,1V, -Reset Open drain output, 200ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
BZA968AVL5 pins, Philips SemiconductorsNot recordedNot recorded5 pinsPhilips Semiconductors
- What it is
- Not recorded
- Maker
- Philips Semiconductors
- Package
- Not recorded
- Pins
- 5
- Source
- Published code list
Is it dead? The meter test is below: This part.
DZ23B2V7-VZener diode, VishayZener diodeNot recordedNot recordedVishay
- What it is
- Zener diode
- Maker
- Vishay
- Package
- Not recorded
- Pins
- Not recorded
- Details
- 2.7V Dual Zener Diodes
- Source
- Published code list
Is it dead? The meter test is below: Zener diode.
ISL9021AIRUCZ-T6 pins, RenesasNot recordedNot recorded6 pinsRenesas
- What it is
- Not recorded
- Maker
- Renesas
- Package
- Not recorded
- Pins
- 6
- Details
- equivalent [1.8V LDO]
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
R1131D281D5Nisshinbo Micro DevicesNot recordedNot recordedNot recordedNisshinbo Micro Devices
- What it is
- Not recorded
- Maker
- Nisshinbo Micro Devices
- Package
- Not recorded
- Pins
- Not recorded
- Details
- VR-IC: LDO, CE, auto discharge, 2.85V±2%, 300mA
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
Is it dead? One meter test per kind
Parts of the same kind are tested the same way, so each test is here once. Each part above points to its own.
Integrated circuit
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.
This part
Diode range and ohms range, part lifted.
Working, it reads
Depends on what it is. The datasheet, or an identical part, says.
Dead, it reads
- Between two pins, the same reading both ways, near 0 V with a continuous beep: shorted.
- Open between every pair of pins: failed open, or a part that reads open when working.
- 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.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Zener diode
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.
Voltage regulator
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.
Printed with a code easy to misread as V1
One character differs, and it is one that is easy to confuse under a lamp. Each code has a page of its own.
Codes that begin with V1
For a marking with its end worn or burnt off. Each code has a page of its own.
Codes not listed here are printed on 94 more parts.
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