Is there a pin-compatible replacement for BSMD1812-050-60V?

No pin-compatible replacement has been fully verified as a direct drop-in. While parts like TECHFUSE mSMD050-60V match the 1812 package and pinout, they have minor electrical differences (like power rating) that require engineering review.

What risks should I check before replacing BSMD1812-050-60V?

Before replacing, check three key risks: 1) Power Dissipation: ensure the substitute can handle the thermal load. 2) Time-to-Trip: ensure the new trip time suits your circuit's needs and won't cause nuisance trips. 3) Resistance: verify the initial and post-trip resistance values are within your circuit's tolerance.

BSMD1812-050-60V Alternatives, Datasheet & Cross Reference | BHFUSE

Find and compare alternatives for the BHFUSE BSMD1812-050-60V, a 60V 0.5A PTC resettable fuse in an 1812 package. Review form-fit and functional alternatives from other manufacturers, with detailed analysis of key parametric differences.

AI replacement insight

Electrical risklow

Key voltage and current ratings are matched by top candidates.

Package risklow

All viable candidates use the same 1812 surface-mount package.

Application riskmedium

Differences in power rating and trip time require application-specific analysis to avoid overheating or nuisance tripping.

Can it be replaced directly?

No direct drop-in replacement has been verified. The closest options have minor parametric differences that require engineering review before substitution.

Best replacement path

TECHFUSE mSMD050-60V is the closest alternative, matching the package, voltage, and current ratings. However, its lower power dissipation (0.8W vs 1.0W) must be reviewed.

Main risk

The primary risk when substituting is a mismatch in power dissipation or time-to-trip characteristics, which can affect thermal performance and system reliability.

Recommended alternatives

A form-fit alternative with matching voltage and current ratings, but a lower power dissipation that needs review.

View details

Alternative comparison matrix

Feature / factor	BSMD1812-050-60V	mSMD050-60V	JK-MSMD050-60V	Compatibility / risk
Package	1812	1812	-	1812 — Form factor matches.
Voltage	60V	60V	-	60V — Maximum voltage rating matches.
Current	0.5A	100A	-	0.5A — Hold current matches.
Power	1.0W	0.8W	-	0.8W — Lower power rating may affect thermal performance.
Application	8s	-	0.15s	0.15s — Significantly faster trip time may cause nuisance trips.

Application & sourcing insights

Questions & answers

The best alternative is likely TECHFUSE mSMD050-60V, as it matches the package, 60V voltage, 0.5A hold current, and 1A trip current. However, you must verify its lower power rating (0.8W) is acceptable for your design.