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Best Alternatives to 1N4148WS

Package: SC-90, SOD-323FonsemiDiodes - Rectifiers - SinglePackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - DC Reverse (Vr) (Max): 75 VCurrent - Average Rectified (Io): 150mAVoltage - Forward (Vf) (Max) @ If: 1 V @ 10 mACurrent - Reverse Leakage @ Vr: 5 µA @ 75 V

Find and compare replacements for the 1N4148WS fast switching diode. Review pin-compatible alternatives and functional equivalents from multiple manufacturers to ensure performance and availability.

AI replacement insight

Package risklow

Multiple candidates share the same SOD-323 package.

Electrical riskmedium

Must verify reverse recovery time (trr) and forward voltage (Vf) match application needs.

Sourcing risklow

This is a common diode type with many cross-vendor options available.

Can it be replaced directly?

Direct replacement for 1N4148WS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

BAS316 is the most promising direct replacement path, matching key performance and physical parameters.

Main risk

The primary risk is substituting with a diode that has a slower reverse recovery time (trr), which can cause issues in high-speed circuits.

Recommended alternatives

2
BAS316 package
BAS316

Yangjie Technology

Needs validationlow risk

BAS316 is a strong alternative in the same SOD-323 package with matching voltage and speed, and higher current rating.

View details

Alternative comparison matrix

Feature / factor1N4148WSBAS316BAV21WSAlt 3Compatibility / risk
PackageSOD-323SOD-323-SOD-323 — Same package and pin count ensures form-fit compatibility.
Voltage100V100V-200V — Higher reverse voltage provides more margin.
Current150mA250mA-200mA — Higher average rectified current provides more margin.
Speed4ns<= 4ns-50ns — Significantly slower reverse recovery time.

Application & sourcing insights

Questions & answers

Verified drop-in options for 1N4148WS 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.