Is there a pin-compatible replacement for JK-MSMD050-60V?

Several alternatives like TECHFUSE mSMD050-60V share the same 1812 package and 2-pin layout, making them likely pin-compatible. However, always verify the land pattern in the datasheet before layout or assembly.

What risks should I check before replacing JK-MSMD050-60V?

Key risks include differences in trip time, post-trip resistance, and maximum fault current (Imax). Mismatched trip characteristics can lead to premature tripping or failure to protect the circuit. Always verify these in the datasheet.

JK-MSMD050-60V Alternatives, Datasheet & Cross Reference | Jinrui Electronic Materials Co.

Find and compare alternatives for the JK-MSMD050-60V, a 60V, 0.5A PTC resettable fuse in a 1812 package. Review datasheet-verified functional alternatives from other manufacturers.

AI replacement insight

Electrical riskmedium

Time-to-trip curves and post-trip resistance can vary between manufacturers, affecting circuit protection behavior.

Package risklow

The 1812 package is standardized, making physical replacement straightforward.

Can it be replaced directly?

TECHFUSE mSMD050-60V is a likely functional replacement, sharing the same package, voltage, and current ratings. Engineering verification of trip curves is still recommended.

Best replacement path

Evaluate TECHFUSE mSMD050-60V, which offers matching primary specs and a higher fault current rating, as a primary candidate.

Main risk

The main risk is a mismatch in dynamic characteristics like time-to-trip, which is not always captured by primary ratings.

Recommended alternatives

Strong functional alternative with matching package, voltage, and current ratings. Features a higher max fault current.

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Alternative comparison matrix

Feature / factor	JK-MSMD050-60V	mSMD050-60V	BSMD1812-050-60V	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.
Resistance	1.40Ω	1.00Ω	-	1.00Ω — Lower post-trip resistance is favorable.
Power	0.8W	-	1.0W	1.0W — Higher power dissipation is acceptable.
Time To Trip	0.15s	-	8s / 150ms	8s / 150ms — Conflicting data requires datasheet verification.

Application & sourcing insights

Questions & answers

TECHFUSE mSMD050-60V is a strong candidate, matching key electrical parameters and package. BHFUSE BSMD1812-050-60V is also a potential match, but requires careful review of its trip time.