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Best Alternatives to FDV303N

Package: TO-236-3, SC-59, SOT-23-3onsemiMOSFETs - SinglePackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Technology: MOSFET (Metal Oxide)Drain to Source Voltage (Vdss): 25 VCurrent - Continuous Drain (Id) @ 25°C: 680mA (Ta)Drive Voltage (Max Rds On, Min Rds On): 2.7V, 4.5V

FDV303N is a low-voltage N-channel SOT-23 MOSFET. The provided set has one stronger electrical candidate, but no verified pin-compatible replacement.

AI replacement insight

Electrical riskmedium

ESD and 2.7V Rds need checks.

Package riskmedium

SOT-23 matches, pinout unknown.

Firmware risklow

Discrete MOSFET.

Sourcing risklow

Kept candidate is active and indexed.

Can it be replaced directly?

Direct replacement for FDV303N should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

PJA3404-AU_R1_000A1 is the best review candidate if pinout and ESD pass.

Main risk

Pinout and ESD rating are not proven.

Recommended alternatives

1
PJA3404-AU_R1_000A1 package
PJA3404-AU_R1_000A1

Panjit International Inc.

Needs validationmedium risk

PJA3404-AU is a stronger N-MOSFET candidate, but pinout and ESD need review.

View details

Alternative comparison matrix

Feature / factorFDV303NPJA3404-AU_R1_000A1Alt 2Alt 3Compatibility / risk
PackageSOT-23, 3-pinSOT-23, 3-pinSOT-23, 3-pin — Same package class
Pinoutnot providednot providednot provided — No pin map evidence
Voltage25 V30 V30 V — Meets 1.1x rule
Current0.68 A5.6 A5.6 A — Higher Id rating
Resistance0.45 Ω @4.5V<0.045 Ω @4.5V<0.045 Ω @4.5V — Lower Rds(on)
ApplicationESD >6 kV HBMnot listednot listed — ESD gap

Application & sourcing insights

Questions & answers

Verified drop-in options for FDV303N are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.