FDN302P
onsemi
Needs validationmedium risk
FDN302P is a close P-channel SuperSOT-3 candidate with lower RDS(on).
Best Alternatives to FDN340P
FDN340P is a P-channel SuperSOT-3 MOSFET. Alternatives need FAE review because pinout evidence is missing.
AI replacement insight
Electrical riskmedium
check VDS margin, RDS, VGS, SOA
Package riskmedium
package text matches, pinout missing
Firmware risklow
discrete MOSFET
Sourcing risklow
kept parts are catalog matched
Can it be replaced directly?
No verified pin-compatible replacement is confirmed from the provided fields.
Best replacement path
Start with FDN302P, then FDN304P, and verify pinout and gate limits.
Main risk
Pinout is not verified and 20V candidates lack 10% voltage headroom.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | FDN340P | FDN302P | FDN304P | FDN358P | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SuperSOT-3 | SuperSOT-3 | SuperSOT-3 | SuperSOT-3 | SuperSOT-3 — same package text; FDN304P: same package text; FDN358P: same package text; FDN352AP: same package text |
| Pinout | 3-pin | 3-pin | 3-pin | 3-pin | 3-pin — pin functions not shown; FDN304P: pin functions not shown; FDN358P: pin functions not shown; FDN352AP: pin functions not shown |
| Voltage | -20V | -20V | -20V | -30V | -20V / -30V — no 10% margin; FDN304P: no 10% margin; FDN358P: higher VDS; FDN352AP: higher VDS |
| Current | -2A | -2.4A | -2.4A | -1.5A | -2.4A / -1.5A / -1.3A — higher ID; FDN304P: higher ID; FDN358P: lower ID; FDN352AP: lower ID |
| Resistance | 70/110mΩ | 55/80mΩ | 52mΩ@4.5V | 125mΩ@10V | 55/80mΩ / 52mΩ@4.5V / 125mΩ@10V / 180mΩ@10V — lower RDS(on); FDN304P: 2.5V value missing; FDN358P: drive differs; FDN352AP: drive differs |
Application & sourcing insights
Questions & answers
FDN302P appears closest by the provided fields, with FDN304P also close. Both still need pinout and VGS review.