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Best Alternatives to BSMD1812-150-24V

Package: 1812BHFUSECircuit ProtectionHold Current: 1.5ATrip Current: 3AMax Voltage (Vmax): 24VMax Fault Current (Imax): 40ATypical Power Dissipation: 1W

BSMD1812-150-24V is a 1.5A, 24V PTC resettable fuse in an 1812 package. While direct drop-in replacements are scarce, several functional alternatives with a 2.0A hold current and similar or better voltage ratings are available.

AI replacement insight

Electrical riskmedium

Higher hold current changes the protection threshold.

Package risklow

All candidates share the same 1812 package.

Can it be replaced directly?

No direct, drop-in replacement with an identical 1.5A hold current was found. All viable alternatives require a design review due to a higher 2.0A hold current.

Best replacement path

Use a 2.0A hold current part with a higher voltage rating, like BSMD1812-200-33V, after verifying the new current limit is acceptable for the application.

Main risk

The main risk is reduced overcurrent protection sensitivity due to the higher hold current of all available substitutes.

Recommended alternatives

4
BSMD1812-200-33V package
Needs validationmedium risk

Functional alternative from the same manufacturer with a higher voltage rating (33V) but also a higher hold current (2.0A).

View details

Alternative comparison matrix

Feature / factorBSMD1812-150-24VBSMD1812-200-33VBSMD1812-200-30VSMD1812-200C-30VCompatibility / risk
Package18121812--1812 — Form factor matches.
Current1.5A2.0A--2.0A — Higher hold current reduces protection sensitivity.
Voltage24.0V33.0V--30.0V — Higher voltage rating provides more safety margin.
Power1.0W1.0W--0.8W — Lower power dissipation may affect thermal behavior.

Application & sourcing insights

Questions & answers

The best alternatives are functional matches like BSMD1812-200-33V or BSMD1812-200-30V. They share the same package and have higher voltage ratings, but feature a higher 2.0A hold current, which requires circuit protection review.