SMD code A85
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.
9 parts are printed A85
Not sure which one you have?
Answer up to 4 quick questions and these 9 parts are ranked, with a meter test that settles it. It works on a dead part too.
10BJ85ASMBTVS diode, 2 pins, JieJieTVS diodeSMB2 pinsJieJie
- What it is
- TVS diode
- Maker
- JieJie
- Package
- SMB
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
10BJ85A-AUSMBTVS diode, 2 pins, JieJieTVS diodeSMB2 pinsJieJie
- What it is
- TVS diode
- Maker
- JieJie
- Package
- SMB
- Pins
- 2
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: TVS or ESD protection diode.
10SMBJ85ASMBTVS diode, 2 pins, UN SemiconductorTVS diodeSMB2 pinsUN Semiconductor
- What it is
- TVS diode
- Maker
- UN Semiconductor
- Package
- SMB
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=85.0V, Vbr=94.40..104.0V, Ipp=7.3A, 1000W(1ms)
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
BV-SMAJ85ASMATVS diode, 2 pins, Bencent ElectronicsTVS diodeSMA2 pinsBencent Electronics
- What it is
- TVS diode
- Maker
- Bencent Electronics
- Package
- SMA
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=85V, Vbr=94.4..104V, 2.2A, 400W(1ms)
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
LN3526C0812MSOT-143Voltage supervisor, 4 pins, Shanghai Natlinear ElectronicsVoltage supervisorSOT-1434 pinsShanghai Natlinear Electronics
- What it is
- Voltage supervisor
- Maker
- Shanghai Natlinear Electronics
- Package
- SOT-143
- Pins
- 4
- Details
- Voltage detector IC: 0.8V±2%, -Reset PPO, -MR, 200ms Rt delay
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
MMBD1701ASOT-233 pins, Texas InstrumentsNot recordedSOT-233 pinsTexas Instruments
- What it is
- Not recorded
- Maker
- Texas Instruments
- Package
- SOT-23
- Pins
- 3
- Details
- Diode
- Source
- Published code list
Is it dead? The meter test is below: Silicon diode.
OPA685NSOT-23-66 pins, Texas InstrumentsNot recordedSOT-23-66 pinsTexas Instruments
- What it is
- Not recorded
- Maker
- Texas Instruments
- Package
- SOT-23-6
- Pins
- 6
- Details
- Op-IC: WB, Current Feedback
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
XC6114B436MRSOT-23-5Voltage supervisor, 5 pins, TorexVoltage supervisorSOT-23-55 pinsTorex
- What it is
- Voltage supervisor
- Maker
- Torex
- Package
- SOT-23-5
- Pins
- 5
- Details
- CMOS-IC: VDet 3.6V, ±Reset PPO, Wt=200ms, Rt=25ms
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
1 more part has no package on record
TS4985EIJTSGS-Thomson MicroelectronicsNot recordedNot recordedNot recordedSGS-Thomson Microelectronics
- What it is
- Not recorded
- Maker
- SGS-Thomson Microelectronics
- Package
- Not recorded
- Pins
- Not recorded
- Details
- Audio amplifier
- Source
- Published code list
Is it dead? The meter test is below: Integrated circuit.
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.
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.
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.
Printed with a code easy to misread as A85
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 A85
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 170 more parts.
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