What 3G can be
3GBC857CPNP transistorSOT-23 · Nexperia · 45 V · 100 mA · hFE 420-800
Pins: 1=B 2=E 3=C
On the part, one more character can follow 3G: a date or factory code. datasheet
3GBC857CWPNP transistorSOT-323 · Nexperia · 45 V · 100 mA · hFE 420-800
Pins: 1=B 2=E 3=C
On the part, one more character can follow 3G: a date or factory code. datasheet
Package size
| Package | Also called | Body | Height |
|---|---|---|---|
| SOT-23 | TO-236AB, SOT-23-3 | 2.9 × 1.3 mm | 1 mm |
| SOT-323 | SC-70, SC-70-3 | 2 × 1.25 mm | 0.95 mm |
Nominal body size without the leads.
How to tell them apart
Measure the plastic body without the leads: SOT-23 2.9 × 1.3 mm · SOT-323 2 × 1.25 mm.
The same code can mean different parts at different makers. The package narrows it down, so measure the body.
Open the SMD identifier →Not sure it is this part? Enter the marking with the shape and size of the body: the identifier checks it against all 340 markings in the database.
Related parts and their markings
| Part | Marking | Type | Package |
|---|---|---|---|
| BC857 | 3H | PNP transistor | SOT-23 |
| BC857A | 3E | PNP transistor | SOT-23 |
| BC857AW | 3E | PNP transistor | SOT-323 |
| BC857B | 3F | PNP transistor | SOT-23 |
| BC857BS | 3F | Dual PNP transistor | SOT-363 |
Frequently asked questions
What is the pinout of SMD code 3G?
BC857C (SOT-23): 1=B 2=E 3=C. BC857CW (SOT-323): 1=B 2=E 3=C.
Marking codes checked against the makers’ datasheets; each part links to its own.