Best Alternatives to SI2302S

Package: SOT-23GOODWORKMOSFETs - SingleFET Type: N-ChannelDrain-Source Voltage (Vdss): 20 VContinuous Drain Current (Id): 3 ARDS(on) (Max) @ Id, Vgs: 60 mΩ @ 3A, 4.5VVgs(th) (Max) @ Id: 1.0 V @ 250µA

SI2302S is a 20V, 3A SOT-23 N-channel MOSFET. The listed alternatives need FAE review because pinout evidence is missing.

AI replacement insight

Electrical riskmedium

Rds, Id and Pd differ.

Package riskmedium

SOT-23 matches, pin map missing.

Firmware risklow

Discrete MOSFET.

Sourcing riskmedium

No direct verified cross.

Can it be replaced directly?

No verified pin-compatible replacement is proven from the provided fields.

Best replacement path

Start with 6003, then verify pinout, Rds at 4.5V, and thermal limits.

Main risk

Pinout and power loss are not fully verified.

Recommended alternatives

2
6003 package
6003

Serpac

Needs validationmedium risk

6003 may fit the same SOT-23 N-MOSFET role, but Rds and pinout need review.

View details

Alternative comparison matrix

Feature / factorSI2302S6003BSS205NH6327Alt 3Compatibility / risk
PackageSOT-23SOT-23SOT-23SOT-23 — same case; BSS205NH6327: same case
Pinout3-pin map neededmissingmissingmissing — not proven; BSS205NH6327: not proven
Voltage20V60V20V60V / 20V — meets margin; BSS205NH6327: no 1.1x margin
Current3A3A2.5A3A / 2.5A — same Id; BSS205NH6327: derated load only
Resistance60mΩ@4.5V100mΩ@10V-100mΩ@10V — higher loss
Power1W-0.5W0.5W — thermal risk

Application & sourcing insights

Questions & answers

From the provided data, 6003 is the closest candidate, but it is not verified as a drop-in replacement.