SMD code F2G
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.
2 parts are printed F2G
Not sure which one you have?
Answer up to 4 quick questions and these 2 parts are ranked, with a meter test that settles it. It works on a dead part too.
FP6861C-I1AS5CSOT-23-5Load switch, 5 pins, FitipowerLoad switchSOT-23-55 pinsFitipower
- What it is
- Load switch
- Maker
- Fitipower
- Package
- SOT-23-5
- Pins
- 5
- Details
- Single-Channel Power Distribution Switch Applications 顯示器 ADSL/VDSL 集線器 機頂盒 數位(智能)電視 纜線數據機
- Source
- Manufacturer datasheet
Is it dead? The meter test is below: Load switch.
DFR2GSOD-123FRectifier, 2 pins, Juxing ElectronicsRectifierSOD-123F2 pinsJuxing Electronics
- What it is
- Rectifier
- Maker
- Juxing Electronics
- Package
- SOD-123F
- Pins
- 2
- Details
- Diode: Rectifier, 400V, 2A, Vf<1.3V(2A), 30pF
- Source
- Published code list
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.
Load switch
Voltage, board powered, black probe on ground.
Working, it reads
Switched on, the output pin sits at the input voltage. Switched off, it sits near 0 V.
Dead, it reads
- Output at the input voltage while switched off: the pass element has shorted.
- Input present and switched on, no output: failed open, or shut down into a shorted load. Power off and measure output to ground.
- On the board:
- An output near 0 Ω to ground is usually the load. Lift the output pin to see which.
- Compare:
- If an identical part sits elsewhere on the board, measure it the same way: that is what this one should read.
- Watch for:
- The pinout and whether the enable is active high or low differ between parts. The datasheet gives both.
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 F2G
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 F2G
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 110 more parts.
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