MMBT4403LT3G
onsemi
Needs validationmedium risk
Same PNP ratings and SOT-23 package; confirm pinout before use.
Best Alternatives to MMBT4403LT1G
MMBT4403LT1G is a PNP SOT-23 switching transistor rated -40V and -600mA. The closest provided candidate is MMBT4403LT3G, but pinout still needs review.
AI replacement insight
Electrical riskmedium
check IC, hFE, VCEsat
Package riskmedium
SOT-23 matches, pinout missing
Firmware risklow
discrete BJT
Sourcing risklow
kept parts are active
Can it be replaced directly?
No fully verified direct replacement is proven from the provided fields.
Best replacement path
Start with MMBT4403LT3G, then verify pinout, hFE, and VCEsat.
Main risk
Pinout evidence is missing; lower-current alternates need derating.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | MMBT4403LT1G | MMBT4403LT3G | MMBT3906LT1G | NSVMMBT5401LT3G | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT-23 | SOT-23 | SOT-23 | SOT-23 — same package text; MMBT3906LT1G: same package text; NSVMMBT5401LT3G: same package text |
| Pinout | 3-pin map | 3-pin map | 3-pin map | 3-pin map | 3-pin map — map not provided; MMBT3906LT1G: map not provided; NSVMMBT5401LT3G: map not provided |
| Voltage | -40V | -40V | -40V | -150V | -40V / -150V — same VCEO; MMBT3906LT1G: same VCEO; NSVMMBT5401LT3G: higher VCEO |
| Current | -600mA | -600mA | -200mA | -500mA | -600mA / -200mA / -500mA — same IC; MMBT3906LT1G: major derating; NSVMMBT5401LT3G: needs derating |
| Temperature | -55..150C | -55..150C | -55..150C | not listed | -55..150C / not listed — same range; MMBT3906LT1G: same range; NSVMMBT5401LT3G: field absent |
Application & sourcing insights
Questions & answers
MMBT4403LT3G is the closest provided candidate, with matching PNP, -40V, -600mA, and SOT-23 fields.