
Alpha & Omega Semiconductor Inc.
AOD4185 is a same-package P-FET candidate with lower VDS than AOD409.
AOD409 is a -60 V P-channel DPAK MOSFET. The listed alternatives need review because none proves equal voltage rating and pinout.
VDS margin is weaker.
Package matches, pinout not checked.
Discrete MOSFET.
One rejected option is NRND.
No pin-compatible replacement is proven from this set.
Start with AOD4185 or DMP4010SK3Q-13 only for derated -40 V designs.
Candidate VDS is below AOD409.

Alpha & Omega Semiconductor Inc.
AOD4185 is a same-package P-FET candidate with lower VDS than AOD409.
| Feature / factor | AOD409 | AOD4185 | DMP4010SK3Q-13 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TO-252 DPAK | TO-252 DPAK | TO-252 DPAK | TO-252 DPAK — same package name; DMP4010SK3Q-13: same package name | |
| Pinout | 3 pins | 3 pins | 3 pins | 3 pins — pin functions not shown; DMP4010SK3Q-13: pin functions not shown | |
| Voltage | -60 V | -40 V | -40 V | -40 V — below target; DMP4010SK3Q-13: below target | |
| Current | -26 A | -40 A | -50 A | -40 A / -50 A — higher ID; DMP4010SK3Q-13: higher ID | |
| Temperature | -55 to 175 C | -55 to 150 C | - | -55 to 150 C — lower max TJ | |
| Resistance | 40 mOhm | - | 9.9 mOhm | 9.9 mOhm — lower RDS(on) |
From this set, AOD4185 is closest, but it is only a derated candidate because VDS is -40 V.