Is there a pin-compatible replacement for BSMD2920-300-24V?

While several parts share the 2-pin 2920 package, no replacement has been verified as pin-to-pin compatible without engineering review. BSMD2920-300-30V is form-fit compatible and a strong electrical match.

What risks should I check before replacing BSMD2920-300-24V?

Key risks include: 1) Hold/Trip Current: A mismatch can lead to circuit damage or nuisance trips. 2) Voltage Rating: Must be equal or higher. 3) Power Dissipation: Ensure the replacement can handle the thermal load.

BSMD2920-300-24V Alternatives, Datasheet & Cross Reference | BHFUSE

Finding a replacement for the BSMD2920-300-24V PTC fuse requires matching the 2920 package, 3A hold current, and 24V rating. Alternatives exist with similar form-fit but may require review of electrical parameters.

AI replacement insight

Electrical riskmedium

Candidates have different current, voltage, or power ratings requiring review.

Package risklow

All viable candidates use the same 2920 package.

Can it be replaced directly?

No verified direct drop-in replacement is available. BSMD2920-300-30V is a strong functional match but requires review of its power rating.

Best replacement path

BSMD2920-300-30V is the best path, offering identical current ratings and a higher voltage margin, but requires checking its slightly lower power dissipation.

Main risk

The main risk is mismatching the hold/trip current, which can either fail to protect the circuit or cause nuisance tripping.

Recommended alternatives

Strong alternative with matching package and current, plus a higher voltage rating. Review lower power rating.

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Alternative comparison matrix

Feature / factor	BSMD2920-300-24V	BSMD2920-300-30V	BSMD2920-400-30V	Compatibility / risk
Package	2920	2920	2920	2920 — Same package and pin count.; BSMD2920-400-30V: Same package and pin count.
Current	3.0A	3.0A	4.0A	3.0A / 4.0A — Hold current matches.; BSMD2920-400-30V: Higher hold current alters trip point, may not protect circuit.
Voltage	24.0V	30.0V	30.0V	30.0V — Higher voltage rating provides more safety margin.; BSMD2920-400-30V: Higher voltage rating provides more safety margin.
Power	2.0W	1.8W	2.5W	1.8W / 2.5W — Slightly lower power rating requires thermal check.; BSMD2920-400-30V: Higher power dissipation is acceptable.

Application & sourcing insights

Questions & answers

BSMD2920-300-30V is the strongest candidate. It matches the 3A hold current and 2920 package, with a higher 30V rating. Its slightly lower power rating (1.8W vs 2.0W) should be reviewed.