SMD code 350C
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.
21 parts are printed 350C
Not sure which one you have?
Answer up to 4 quick questions and these 21 parts are ranked, with a meter test that settles it. It works on a dead part too.
1.5SMC350CASMCTVS diode, 2 pins, DOWOTVS diodeSMC2 pinsDOWO
- What it is
- TVS diode
- Maker
- DOWO
- Package
- SMC
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
1.5SMC350CA*SMCTVS diode, 2 pins, YFWTVS diodeSMC2 pinsYFW
- What it is
- TVS diode
- Maker
- YFW
- Package
- SMC
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
3.0SMC350CSMCTVS diode, 2 pins, YFWTVS diodeSMC2 pinsYFW
- What it is
- TVS diode
- Maker
- YFW
- Package
- SMC
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
P4SMA350CASMATVS diode, 2 pins, DOWOTVS diodeSMA2 pinsDOWO
- What it is
- TVS diode
- Maker
- DOWO
- Package
- SMA
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
P6SMB350CASMBTVS diode, 2 pins, DOWOTVS diodeSMB2 pinsDOWO
- What it is
- TVS diode
- Maker
- DOWO
- Package
- SMB
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
P6SMB350CA(MS)SMBTVS diode, 2 pins, MSKSEMITVS diodeSMB2 pinsMSKSEMI
- What it is
- TVS diode
- Maker
- MSKSEMI
- Package
- SMB
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
P15SMCJ350CASMCFTVS diode, 2 pins, Formosa MicrosemiTVS diodeSMCF2 pinsFormosa Microsemi
- What it is
- TVS diode
- Maker
- Formosa Microsemi
- Package
- SMCF
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
PAM4SMA350CASMATVS diode, 2 pins, ProTek DevicesTVS diodeSMA2 pinsProTek Devices
- What it is
- TVS diode
- Maker
- ProTek Devices
- Package
- SMA
- Pins
- 2
- Details
- 400 Watt TVS Component
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
PAM30DOAA350CASMBTVS diode, 2 pins, ProTek DevicesTVS diodeSMB2 pinsProTek Devices
- What it is
- TVS diode
- Maker
- ProTek Devices
- Package
- SMB
- Pins
- 2
- Details
- 600 Watt TVS Component
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
AP8853-50CSOT-23LDO regulator, 3 pins, Anwell SemiconductorLDO regulatorSOT-233 pinsAnwell Semiconductor
- What it is
- LDO regulator
- Maker
- Anwell Semiconductor
- Package
- SOT-23
- Pins
- 3
- Details
- Linear voltage regulator IC: LDO, 5.0V±2%, 300mA, Pb-free
- Source
- Published code list
Is it dead? The meter test is below: Voltage regulator.
P4SMA350CSMATVS diode, 2 pins, EIC SemiconductorTVS diodeSMA2 pinsEIC Semiconductor
- What it is
- TVS diode
- Maker
- EIC Semiconductor
- Package
- SMA
- Pins
- 2
- Details
- Transient voltage supressor: Vbr=315..385V, Vrwm=284V, 0.79A, 400W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
P4SMAJ350CSMATVS diode, 2 pins, Sunmate SemiconductorTVS diodeSMA2 pinsSunmate Semiconductor
- What it is
- TVS diode
- Maker
- Sunmate Semiconductor
- Package
- SMA
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=284V, Vbr=315..385V, Ipp=0.79A, 400W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
PSMAJ350CASMATVS diode, 2 pins, Lite-On SemiconductorTVS diodeSMA2 pinsLite-On Semiconductor
- What it is
- TVS diode
- Maker
- Lite-On Semiconductor
- Package
- SMA
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=300.0V, Vbr=332.0..367.0V, Ipp=0.83A, 400W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
PSMBJ350CASMBTVS diode, 2 pins, Lite-On SemiconductorTVS diodeSMB2 pinsLite-On Semiconductor
- What it is
- TVS diode
- Maker
- Lite-On Semiconductor
- Package
- SMB
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=300.0V, Vbr=332.0..367.0V, Ipp=1.2A, 600W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
SMAJP4KE350CASMATVS diode, 2 pins, Micro Commercial ComponentsTVS diodeSMA2 pinsMicro Commercial Components
- What it is
- TVS diode
- Maker
- Micro Commercial Components
- Package
- SMA
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=300.0V, Vbr=332.0..368.0V, Ipp=0.9A, 400W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection 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.
TVS or ESD protection diode
Diode range, from the protected line to ground, part lifted if you can.
Working, it reads
A one-way part reads about 0.6 to 0.8 V forward and open in reverse. A two-way part reads open both ways. Arrays with several lines read as the datasheet's diagram draws them.
Dead, it reads
- From the line to ground, the same reading both ways, near 0 V with a continuous beep: shorted.
- A reading both ways on a one-way part: leaky.
- A one-way part open both ways: failed open.
- On the board
- , a line reading shorted to ground can be this part or anything else on that line. Lift it: if the short goes with it, it has failed.
- Compare:
- The same part on the next line or connector pin is the healthy reading to compare with.
- Watch for:
- A two-way part reads open both ways when it is good, exactly like one that has failed open. The meter cannot tell them apart; an identical part on the next line can.
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.
Codes that begin with 350C
For a marking with its end worn or burnt off. Each code has a page of its own.
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