Best Alternatives to BSMD0402L-050

Package: 0402BHFUSECircuit ProtectionHold Current: 500mATrip Current: 1AMax Voltage (Vmax): 6VMax Fault Current (Imax): 40ATypical Power Dissipation: 0.5W

BSMD0402L-050 is a 0402 surface-mount PTC resettable fuse with a 0.5A hold current and 6V rating. We've identified several pin-compatible alternatives from manufacturers like Littelfuse and LUTE.

AI replacement insight

Electrical risklow

Key parameters match. Secondary characteristics like trip time should be checked.

Package risklow

Package and pinout are identical.

Sourcing risklow

Multiple strong alternatives are available from different manufacturers.

Can it be replaced directly?

Direct replacement for BSMD0402L-050 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Start with Datasheet verified or Strong match candidates for BSMD0402L-050, then review parametric alternatives for package and electrical fit.

Main risk

The main risk is minor variations in trip time and post-trip resistance between manufacturers, which should be verified in-circuit.

Recommended alternatives

2
0402L050SL6SR package
Needs validationlow risk

LUTE 0402L050SL6SR is a strong pin-compatible alternative with matching key electrical parameters.

View details

Alternative comparison matrix

Feature / factorBSMD0402L-0500402L050SL6SR0402L050SLKRAlt 3Compatibility / risk
Package0402040204020402 — Identical package and pin count.; 0402L050SLKR: Identical package and pin count.
Current40A40A50A40A / 50A — Max fault current (Imax) matches.; 0402L050SLKR: Max fault current (Imax) is higher.
Voltage6.0V6.0V6.0V6.0V — Max voltage (Vmax) matches.; 0402L050SLKR: Max voltage (Vmax) matches.
Resistance0.4Ω-0.400 Ω0.400 Ω — Post-trip resistance matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for BSMD0402L-050 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.