What T4 can be
T41N4148W / BAV16WSwitching diodeSOD-123 · Diodes Inc. · 100 V · 300 mA
Pins: band = cathode
On the part, up to 2 more characters can follow T4: a date or factory code. datasheet
T41N4148WS / BAV16WSSwitching diodeSOD-323 · Diodes Inc. · 75 V · 300 mA
Pins: band = cathode
Package size
| Package | Also called | Body | Height |
|---|---|---|---|
| SOD-123 | SOD123 | 2.69 × 1.6 mm | 1.17 mm |
| SOD-323 | SC-76, SOD323 | 1.7 × 1.25 mm | 0.9 mm |
| SOD-523 | SC-79, SOD523 | 1.2 × 0.8 mm | 0.6 mm |
Nominal body size without the leads.
How to tell them apart
Measure the plastic body without the leads: SOD-123 2.69 × 1.6 mm · SOD-323 1.7 × 1.25 mm · SOD-523 1.2 × 0.8 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 357 markings in the database.
Frequently asked questions
What is the pinout of SMD code T4?
1N4148W / BAV16W (SOD-123): band = cathode. 1N4148WS / BAV16WS (SOD-323): band = cathode. 1N4148WT (SOD-523): band = cathode.
Marking codes checked against the makers’ datasheets; each part links to its own.