AO3480C
Alpha & Omega Semiconductor Inc.
Needs validationmedium risk
AO3480C is a close SOT-23 N-MOSFET candidate for AO3400C with pending pinout review.
Best Alternatives to AO3400C
AO3400C is a 30V SOT-23 N-channel MOSFET. Candidate replacements need pinout, RDS(on), and derating review.
AI replacement insight
Electrical riskmedium
Check Vdss, Id, RDS(on), Qg.
Package risklow
Kept options are SOT-23.
Firmware risklow
Discrete MOSFET; no firmware.
Sourcing riskmedium
AO3400A has NFND data.
Can it be replaced directly?
No verified pin-compatible replacement is proven from the provided fields.
Best replacement path
Start with AO3480C, then verify pin functions and switching losses.
Main risk
Pinout is not provided and some candidates reduce current, voltage, or RDS(on) margin.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | AO3400C | AO3480C | AO3400A | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT-23 | SOT-23 | SOT-23 — same package; AO3400A: same package | |
| Pinout | 3 pins | 3 pins | 3 pins | 3 pins — pin functions missing; AO3400A: pin functions missing | |
| Voltage | 30 V | 30 V | 30 V | 30 V — same Vdss; AO3400A: same Vdss | |
| Current | 6.2 A | 6.2 A | 5.7-5.8 A | 6.2 A / 5.7-5.8 A — same Id; AO3400A: lower Id | |
| Power | RDS<20mΩ, Qg12nC | RDS<20mΩ, Qg6-12nC | - | RDS<20mΩ, Qg6-12nC — Qg data conflicts | |
| Lifecycle | Active | - | NFND/Active | NFND/Active — mixed sources |
Application & sourcing insights
Questions & answers
AO3480C is the closest provided candidate, but it still needs pinout and datasheet review.