What 6B can be
6BBC817-25NPN transistorSOT-23 · Nexperia · 45 V · 500 mA · hFE 160-400
Pins: 1=B 2=E 3=C
On the part, one more character can follow 6B: a date or factory code. datasheet
6BBC817-25WNPN transistorSOT-323 · Nexperia · 45 V · 500 mA · hFE 160-400
Pins: 1=B 2=E 3=C
On the part, one more character can follow 6B: 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 |
|---|---|---|---|
| BC817 | 6D | NPN transistor | SOT-23 |
Frequently asked questions
What is the pinout of SMD code 6B?
BC817-25 (SOT-23): 1=B 2=E 3=C. BC817-25W (SOT-323): 1=B 2=E 3=C.
Marking codes checked against the makers’ datasheets; each part links to its own.