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Best Alternatives to 1812L014DR

Package: 1812 (4532 Metric), ConcaveLittelfusePTC Resettable FusesSeries: POLY-FUSE®, 1812LPackage: Tape & Reel (TR) Cut Tape (CT) Digi-Reel®Type: PolymericVoltage - Max: 60VCurrent - Hold (Ih) (Max): 140 mA

The Littelfuse 1812L014DR is a 60V, 0.14A PTC resettable fuse in a standard 1812 surface-mount package. Several cross-vendor alternatives with matching key parameters are available, offering flexibility for sourcing and design.

AI replacement insight

Electrical risklow

For candidates with matching Ihold/Itrip. Risk is high for parts with different current ratings.

Package risklow

All top candidates use the standard 1812 package.

Sourcing risklow

Multiple vendors offer compatible parts, indicating good availability.

Can it be replaced directly?

Direct replacement for 1812L014DR should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

MINISMDC014F-2 from Littelfuse or mSMD014 from TECHFUSE offer the closest parametric match and are strong replacement candidates.

Main risk

The primary risk is a mismatch in the time-current characteristic, which affects how quickly the fuse trips under overcurrent conditions.

Recommended alternatives

5
BSMD1812-014-60V package
BSMD1812-014-60V

BHFUSE

Needs validationlow risk

A strong cross-vendor alternative from BHFUSE with matching key electrical parameters.

View details

Alternative comparison matrix

Feature / factor1812L014DRBSMD1812-014-60VSMD1812B014TFmSMD014Compatibility / risk
Package181218121812 (4532 metric)18121812 / 1812 (4532 metric) — Same 1812 package.; SMD1812B014TF: Same 1812 package.; mSMD014: Same 1812 package.; MINISMDC014F-2: Same 1812 package.
Voltage60V60V60V60V60V — Maximum voltage rating matches.; SMD1812B014TF: Maximum voltage rating matches.; mSMD014: Maximum voltage rating matches.; MINISMDC014F-2: Maximum voltage rating matches.
Current0.34A0.34A0.34A0.34A0.34A / 0.28A — Trip current matches.; SMD1812B014TF: Trip current matches.; mSMD014: Trip current matches.; MINISMDC014F-2: Trip current is lower, may trip earlier.
Power0.8W--0.8W0.8W / 0.75W — Power dissipation matches.; MINISMDC014F-2: Power dissipation is slightly lower.

Application & sourcing insights

Questions & answers

Verified drop-in options for 1812L014DR 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.