What SS can be
SSBSS138N-channel MOSFETSOT-23 · onsemi · 50 V · 0.22 A · RDS(on) 3.5 Ω at 10 V
Pins: 1=G 2=S 3=D
On the part, one more character can follow SS: a date or factory code. datasheet
SSBSS138 (ex-Zetex, 'BSS138(Z)')N-channel MOSFETSOT-23 · Diodes Inc. · 50 V · 0.2 A · RDS(on) 3.5 Ω at 5 V
Pins: 1=G 2=S 3=D
Package size
| Package | Also called | Body | Height |
|---|---|---|---|
| SOT-23 | TO-236AB, SOT-23-3 | 2.9 × 1.3 mm | 1 mm |
Nominal body size without the leads.
How to tell them apart
Only one part in our database uses SS, but other makers can print the same code on different parts: check that the package matches.
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 |
|---|---|---|---|
| BSS138 | K38 | N-channel MOSFET | SOT-23 |
| BSS138BK | SB | N-channel MOSFET | SOT-23 |
| BSS138P | AN | N-channel MOSFET | SOT-23 |
| BSS138PW | XJ | N-channel MOSFET | SOT-323 |
| BSS138W | K38 | N-channel MOSFET | SOT-323 |
Frequently asked questions
What is the pinout of SMD code SS?
BSS138 (SOT-23): 1=G 2=S 3=D.
Marking codes checked against the makers’ datasheets; each part links to its own.