Is there a pin-compatible replacement for SMD0805-100?

While BSMD0805-100-6V is pin-compatible in its 0805 package, it is not a direct drop-in replacement due to a lower max fault current rating. Engineering verification is required.

What risks should I check before replacing SMD0805-100?

The most critical risk is the maximum fault current (Imax). Ensure your circuit's worst-case fault current does not exceed the rating of the replacement part (e.g., 40A for BSMD0805-100-6V).

SMD0805-100 Alternatives, Datasheet & Cross Reference | TECHFUSE

SMD0805-100 is a 1A, 6V PTC resettable fuse in an 0805 package. Alternatives exist but require careful review of the maximum fault current rating to ensure system safety and reliability.

AI replacement insight

Electrical riskmedium

Lower max fault current (Imax) on all viable candidates requires circuit analysis.

Package risklow

Candidates share the same 0805 package and pinout.

Can it be replaced directly?

No drop-in replacement has been identified. BSMD0805-100-6V is a strong functional match, but has a lower maximum fault current rating that requires engineering review.

Best replacement path

BSMD0805-100-6V is the closest match, but its lower fault current rating (40A vs 100A) must be verified for your application.

Main risk

The primary risk is the lower maximum fault current (Imax) of available alternatives, which could lead to device failure in high-current fault conditions.

Recommended alternatives

A form, fit, and functional alternative with matching hold current, but a lower max fault current rating.

View details

Alternative comparison matrix

Feature / factor	SMD0805-100	BSMD0805-100-6V	BSMD0805-100-12V	Compatibility / risk
Package	0805	0805	0805	0805 — Form and fit match.; BSMD0805-100-12V: Form and fit match.
Current	1.95A	2.0A	40A	2.0A / 40A — Trip current (Itrip) is a close match.; BSMD0805-100-12V: Max fault current (Imax) is lower.
Voltage	6.0V	6.0V	12.0V	6.0V / 12.0V — Max voltage (Vmax) matches.; BSMD0805-100-12V: Max voltage (Vmax) is higher, which is a safe upgrade.

Application & sourcing insights

Questions & answers

BSMD0805-100-6V by BHFUSE is a strong candidate, matching the package, hold current, and voltage. However, its 40A max fault current is lower than the original's 100A and must be verified for your design.