SMD code S5s in SOD-323
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 S5 was searched.
18 parts in SOD-323 are printed S5s
Not sure which one you have?
Answer up to 4 quick questions and these 46 parts are ranked, with a meter test that settles it. It works on a dead part too.
1SS404SOD-323Schottky diode, 2 pins, ToshibaSchottky diode2 pinsToshiba
- What it is
- Schottky diode
- Maker
- Toshiba
- Package
- SOD-323
- Pins
- 2
- Details
- 0.3A, 25V, Surface Mount Small Signal Schottky Diodes
- Source
- Published code list
Is it dead? The meter test is below: Schottky diode.
BBY52-03WSOD-3232 pins, InfineonNot recorded2 pinsInfineon
- What it is
- Not recorded
- Maker
- Infineon
- Package
- SOD-323
- Pins
- 2
- Details
- 1.25-1.75 pF varicap in
- Source
- Published code list
Is it dead? The meter test is below: PIN diode or varicap.
SD103CWSSOD-323Schottky diode, 2 pins, Diodes IncorporatedSchottky diode2 pinsDiodes Incorporated
- What it is
- Schottky diode
- Maker
- Diodes Incorporated
- Package
- SOD-323
- Pins
- 2
- Source
- Published code list
Is it dead? The meter test is below: Schottky diode.
12 more parts have no package on record. Nothing rules them out, so they stay.
ACDSUC4448-HFSwitching diode, ComchipSwitching diodeNot recordedComchip
- What it is
- Switching diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- 100 V, 125 mA switching diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
CDSQC4448-HFSwitching diode, ComchipSwitching diodeNot recordedComchip
- What it is
- Switching diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- 100 V, 125 mA switching diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
CDSU4448-HFSwitching diode, ComchipSwitching diodeNot recordedComchip
- What it is
- Switching diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- 100 V, 125 mA switching diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
CDSUR4448-HFSwitching diode, ComchipSwitching diodeNot recordedComchip
- What it is
- Switching diode
- Maker
- Comchip
- Package
- Not recorded
- Pins
- Not recorded
- Details
- 100 V, 125 mA switching diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
LBSS5350Q3T1GPNP transistor, LRCPNP transistorNot recordedLRC
- What it is
- PNP transistor
- Maker
- LRC
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Bipolar transistor, PNP, IC 3000 mA, VCEO 50 V
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
MFPS5SSchottky diode, Taitron ComponentsSchottky diodeNot recordedTaitron Components
- What it is
- Schottky diode
- Maker
- Taitron Components
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Surface Mount Schottky Rectifiers
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Schottky diode.
MM5Z27VBZener diode, Formosa MicrosemiZener diodeNot recordedFormosa Microsemi
- What it is
- Zener diode
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
MM5Z27VB-Q1Zener diode, Formosa MicrosemiZener diodeNot recordedFormosa Microsemi
- What it is
- Zener diode
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Zener diode.
S-LBSS5350Q3T1GPNP transistor, LRCPNP transistorNot recordedLRC
- What it is
- PNP transistor
- Maker
- LRC
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Bipolar transistor, PNP, IC 3000 mA, VCEO 50 V
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: PNP transistor.
SCS355V-CSwitching diode, SeCoSSwitching diodeNot recordedSeCoS
- What it is
- Switching diode
- Maker
- SeCoS
- Package
- Not recorded
- Pins
- Not recorded
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
SFM15-MHRectifier, Formosa MicrosemiRectifierNot recordedFormosa Microsemi
- What it is
- Rectifier
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Rectifier diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon diode.
SFM15-MSRectifier, Formosa MicrosemiRectifierNot recordedFormosa Microsemi
- What it is
- Rectifier
- Maker
- Formosa Microsemi
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Rectifier diode
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Silicon 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.
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.
PIN diode or varicap
Diode range, part lifted or one leg off the pad. Red probe on the anode.
Working, it reads
About 0.6 to 0.9 V anode to cathode, 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.
- 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 varicap that has drifted in capacitance reads normal on a meter. Only a capacitance meter or the tuning itself shows it.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
Silicon diode
Diode range, part lifted or one leg off the pad. Red probe on the anode.
Working, it reads
About 0.5 to 0.8 V anode to cathode, and open the other way. Small switching diodes read about 0.6 to 0.7 V; large rectifiers can read a little lower.
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: failed open.
- A reading the wrong way round as well: 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 three-pin body can hold two diodes. With a common pin they read two junctions from that pin, just like a transistor; in series they read two drops end to end. Test each pair the datasheet names.
A dead part still carries its marking. A short or an open says it has failed, not that it is a different part.
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.
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