SMD code AGs
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 AG was searched.
185 parts are printed AGs
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.
2 pins. What differs:
TV04A6V0JSMAComchipNot recordedSMAComchip
- What it is
- Not recorded
- Maker
- Comchip
- Package
- SMA
- Pins
- 2
- Details
- TVS: 6V, 5%, 38A, 400W(1ms)
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
TV04A6V0J-GSMATVS diode, ComchipTVS diodeSMAComchip
- What it is
- TVS diode
- Maker
- Comchip
- Package
- SMA
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=6.0V, Vbr=6.67..7.37V, Ipp=38.83A , 400W(1ms)
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
TV06B6V0JBSMBComchipNot recordedSMBComchip
- What it is
- Not recorded
- Maker
- Comchip
- Package
- SMB
- Pins
- 2
- Details
- TVS: 6V, 5%, 58.3A, 600W(1ms), Bidirectional
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
TV06B6V0JB-GSMBTVS diode, ComchipTVS diodeSMBComchip
- What it is
- TVS diode
- Maker
- Comchip
- Package
- SMB
- Pins
- 2
- Details
- Transient voltage supressor: Vrwm=6.0V, Vbr=6.67..7.37V, Ipp=58.25A, 600W(1ms), Bidir.
- Source
- Published code list
Is it dead? The meter test is below: TVS or ESD protection diode.
ZMV835ASOD-323Diodes IncorporatedNot recordedSOD-323Diodes Incorporated
- What it is
- Not recorded
- Maker
- Diodes Incorporated
- Package
- SOD-323
- Pins
- 2
- Details
- varicap hyperabrupt 28V 68pF@2V
- Source
- Published code list
Is it dead? The meter test is below: PIN diode or varicap.
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.
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.
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