SMD code 5Cs
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.
The last letter, s, is lower case, which on NXP and Philips parts is a date or factory code, so it was set aside and 5C was searched.
147 parts are printed 5Cs
Not sure which one you have?
Answer up to 4 quick questions and these 50 parts are ranked, with a meter test that settles it. It works on a dead part too.
BC807-40HSOT-23PNP transistor, 3 pins, Taiwan SemiconductorPNP transistorSOT-233 pinsTaiwan Semiconductor
- What it is
- PNP transistor
- Maker
- Taiwan Semiconductor
- Package
- SOT-23
- Pins
- 3
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
BC807-40LSOT-23PNP transistor, 3 pins, onsemiPNP transistorSOT-233 pinsonsemi
- What it is
- PNP transistor
- Maker
- onsemi
- Package
- SOT-23
- Pins
- 3
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
BC807-40WSOT-323PNP transistor, 3 pins, Formosa MicrosemiPNP transistorSOT-3233 pinsFormosa Microsemi
- What it is
- PNP transistor
- Maker
- Formosa Microsemi
- Package
- SOT-323
- Pins
- 3
- Pinout
- 1 base
- 2 emitter
- 3 collector
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
BC807-40W-Q1SOT-323PNP transistor, 3 pins, Formosa MicrosemiPNP transistorSOT-3233 pinsFormosa Microsemi
- What it is
- PNP transistor
- Maker
- Formosa Microsemi
- Package
- SOT-323
- Pins
- 3
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
BC807-40WHSOT-323PNP transistor, 3 pins, Taiwan SemiconductorPNP transistorSOT-3233 pinsTaiwan Semiconductor
- What it is
- PNP transistor
- Maker
- Taiwan Semiconductor
- Package
- SOT-323
- Pins
- 3
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
BCX17SOT-23PNP transistor, 3 pins, HXYPNP transistorSOT-233 pinsHXY
- What it is
- PNP transistor
- Maker
- HXY
- Package
- SOT-23
- Pins
- 3
- Details
- Bipolar transistor, 45 V, 0.5 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
BCX17,215SOT-23PNP transistor, 3 pins, HXYPNP transistorSOT-233 pinsHXY
- What it is
- PNP transistor
- Maker
- HXY
- Package
- SOT-23
- Pins
- 3
- Details
- Bipolar transistor, 45 V, 0.5 A
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
BZT52C11SOD-123FZener diode, 2 pins, DiotecZener diodeSOD-123F2 pinsDiotec
- What it is
- Zener diode
- Maker
- Diotec
- Package
- SOD-123F
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZT52C28WUSOD-723Zener diode, 2 pins, Taitron ComponentsZener diodeSOD-7232 pinsTaitron Components
- What it is
- Zener diode
- Maker
- Taitron Components
- Package
- SOD-723
- Pins
- 2
- Details
- SMD Zener Diodes (Two Terminals) - 200mW
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX384B20SOD-323Zener diode, 2 pins, VishayZener diodeSOD-3232 pinsVishay
- What it is
- Zener diode
- Maker
- Vishay
- Package
- SOD-323
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX584C7V5SOD-523Zener diode, 2 pins, Yangjie Electronic TechZener diodeSOD-5232 pinsYangjie Electronic Tech
- What it is
- Zener diode
- Maker
- Yangjie Electronic Tech
- Package
- SOD-523
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX584C7V5QSOD-523Zener diode, 2 pins, Yangjie Electronic TechZener diodeSOD-5232 pinsYangjie Electronic Tech
- What it is
- Zener diode
- Maker
- Yangjie Electronic Tech
- Package
- SOD-523
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX584C28SOD-523Zener diode, 2 pins, PanjitZener diodeSOD-5232 pinsPanjit
- What it is
- Zener diode
- Maker
- Panjit
- Package
- SOD-523
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
BZX584C28-AUSOD-523Zener diode, 2 pins, PanjitZener diodeSOD-5232 pinsPanjit
- What it is
- Zener diode
- Maker
- Panjit
- Package
- SOD-523
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
CDBV3-54C-HFSOT-323Schottky diode, 3 pins, ComchipSchottky diodeSOT-3233 pinsComchip
- What it is
- Schottky diode
- Maker
- Comchip
- Package
- SOT-323
- Pins
- 3
- Details
- 30 V, 0.2 A Schottky barrier diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Schottky diode.
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.
PNP transistor
Diode range, part lifted or its base leg off the pad.
Working, it reads
Black probe on the base reads about 0.6 to 0.75 V to the emitter and to the collector, and open the other way round. Collector to emitter reads open both ways.
Dead, it reads
- Collector to emitter the same both ways, near 0 V with a continuous beep: shorted. The commonest failure.
- The base the same both ways to another pin, near 0 V or a middling value: a shorted junction.
- Only one junction reads, or none: a junction has failed open. It then looks like a diode.
- A reading the wrong way round, where it should be open: 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 pair of diodes with a common pin reads just like a transistor, and some transistors carry a built-in diode or resistor. The datasheet says which.
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.
Schottky diode
Diode range, part lifted or one leg off the pad. Red probe on the anode.
Working, it reads
About 0.15 to 0.45 V anode to cathode, roughly half a silicon diode, and open the other way.
Dead, it reads
- The same reading both ways round, near 0 V with a continuous beep or the same middling value: shorted.
- A reading the wrong way round as well: leaky.
- Open both ways: failed open.
- 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 large Schottky can read about 0.1 V forward and beep like a short, and leaks a little the wrong way when good, more when warm. It is shorted only if it reads the same both ways. Measure it cold, beside an identical cold one.
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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