
LUTE
LUTE 0402L050SL6SR is a strong pin-compatible alternative with matching key electrical parameters.
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.
Key parameters match. Secondary characteristics like trip time should be checked.
Package and pinout are identical.
Multiple strong alternatives are available from different manufacturers.
Direct replacement for BSMD0402L-050 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Start with Datasheet verified or Strong match candidates for BSMD0402L-050, then review parametric alternatives for package and electrical fit.
The main risk is minor variations in trip time and post-trip resistance between manufacturers, which should be verified in-circuit.

LUTE
LUTE 0402L050SL6SR is a strong pin-compatible alternative with matching key electrical parameters.
| Feature / factor | BSMD0402L-050 | 0402L050SL6SR | 0402L050SLKR | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 — Identical package and pin count.; 0402L050SLKR: Identical package and pin count. | |
| Current | 40A | 40A | 50A | 40A / 50A — Max fault current (Imax) matches.; 0402L050SLKR: Max fault current (Imax) is higher. | |
| Voltage | 6.0V | 6.0V | 6.0V | 6.0V — Max voltage (Vmax) matches.; 0402L050SLKR: Max voltage (Vmax) matches. | |
| Resistance | 0.4Ω | - | 0.400 Ω | 0.400 Ω — Post-trip resistance matches. |
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.