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Best Alternatives to 0805L100WR

Package: 0805 (2012 Metric), ConcaveLittelfusePTC Resettable FusesSeries: POLY-FUSE®, 0805LPackage: Tape & Reel (TR) Cut Tape (CT) Digi-Reel®Type: PolymericVoltage - Max: 6VCurrent - Hold (Ih) (Max): 1 A

Littelfuse 0805L100WR is a 6V, 1.0A resettable PTC fuse in an 0805 package. Alternatives with the same form factor and key electrical ratings are available but require verification of trip characteristics for specific applications.

AI replacement insight

Package risklow

All viable candidates match the 0805 package.

Electrical riskmedium

Requires verification of trip current, max fault current, and resistance values to ensure proper protection.

Can it be replaced directly?

Direct replacement for 0805L100WR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

SMD0805-100C-12V offers an upgraded voltage rating, while TLC-PSMD100 is a very close parametric match. Both are strong candidates.

Main risk

The primary risk is mismatch in secondary electrical parameters like post-trip resistance (R1max) and max fault current (Imax), which can impact circuit protection and recovery.

Recommended alternatives

3
TLC-PSMD100 package
TLC-PSMD100

TLC Electronic

Needs validationlow risk

A strong alternative with matching package, hold current, and voltage, but requires review of trip characteristics.

View details

Alternative comparison matrix

Feature / factor0805L100WRTLC-PSMD100SMD0805-100C-12VSMD0805P100TFCompatibility / risk
Package08050805080508050805 — Matches form factor.; SMD0805-100C-12V: Matches form factor.; SMD0805P100TF: Matches form factor.
Voltage6.0V6.0V12.0V-6.0V / 12.0V — Maximum voltage rating matches.; SMD0805-100C-12V: Higher voltage rating provides more safety margin.
Current1.95A2.0A40A35A2.0A / 40A / 35A — Trip current is slightly higher, within typical tolerance.; SMD0805-100C-12V: Max fault current matches.; SMD0805P100TF: Max fault current is lower, a downgrade risk.
Resistance0.210Ω0.250Ω0.27Ω0.23Ω0.250Ω / 0.27Ω / 0.23Ω — Max post-trip resistance is higher, may affect recovery.; SMD0805-100C-12V: Max post-trip resistance is higher, may affect recovery.; SMD0805P100TF: Max post-trip resistance is slightly higher.

Application & sourcing insights

Questions & answers

Verified drop-in options for 0805L100WR 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.