PJA138K_R1_00001
Panjit International Inc.
Needs validationmedium risk
PJA138K is a stronger N-MOSFET candidate for FDV301N with review.
Best Alternatives to FDV301N
FDV301N is a 25V SOT-23 N-channel MOSFET. Alternatives exist, but pinout and 2.7V drive must be checked.
AI replacement insight
Electrical riskmedium
2.7V RDS and ESD may differ.
Package riskmedium
SOT-23 matches, pin map missing.
Firmware risklow
Discrete MOSFET; no protocol.
Sourcing risklow
Kept parts are active and indexed.
Can it be replaced directly?
No verified pin-compatible replacement is proven from the provided evidence.
Best replacement path
Start with PJA138K or BSS138, then verify pinout, RDS(on) at 2.7V, and ESD.
Main risk
Missing pinout and low-gate-drive RDS(on) data.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | FDV301N | PJA138K_R1_00001 | BSS138 | 2N7002K_R1_00501 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT-23 | SOT-23 | SOT-23 | SOT-23 — same package; BSS138: same package; 2N7002K_R1_00501: same package; 2N7002K-AU_R1_000A2: same package |
| Pinout | 3-pin map | missing | missing | missing | missing — not proven; BSS138: not proven; 2N7002K_R1_00501: not proven; 2N7002K-AU_R1_000A2: not proven |
| Voltage | 25 V | 50 V | 50 V | 60 V | 50 V / 60 V — meets margin; BSS138: meets margin; 2N7002K_R1_00501: meets margin; 2N7002K-AU_R1_000A2: meets margin |
| Current | 0.22 A | 0.5 A | 0.3 A | 0.3 A | 0.5 A / 0.3 A — higher rating; BSS138: higher rating; 2N7002K_R1_00501: higher rating; 2N7002K-AU_R1_000A2: higher rating |
| Temperature | -55..150C | -55..150C | - | -55..150C | -55..150C — same range; 2N7002K_R1_00501: same range |
| Power | 0.35 W | - | 0.35 W | - | 0.35 W / 0.5 W — no margin; 2N7002K-AU_R1_000A2: higher Pd |
Application & sourcing insights
Questions & answers
PJA138K and BSS138 look like the best candidates, but both need pinout and low-drive RDS checks.