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Best Alternatives to mSMD110-33V

Package: 1812TECHFUSEPTC Resettable FusesOperating Voltage (Max): 33 VHold Current: 1.1 ATrip Current: 2.2 ACurrent Rating (Max): 100 APackage Size: 1812 (4532 Metric)

TECHFUSE mSMD110-33V is a popular 1812 PTC resettable fuse rated for 33V and 1.1A. This page reviews and compares potential alternatives for your application, highlighting pin-compatible options and functional alternates.

AI replacement insight

Electrical riskhigh

Mismatched current or voltage ratings can lead to circuit failure or safety issues.

Package risklow

Most candidates use the same 1812 package, ensuring physical compatibility.

Sourcing riskmedium

Switching manufacturers may involve different supply chain logistics and part validation.

Can it be replaced directly?

Direct replacement for mSMD110-33V should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Start with Datasheet verified or Strong match candidates for mSMD110-33V, then review parametric alternatives for package and electrical fit.

Main risk

The main risk when substituting is choosing a part with a higher hold current, which will reduce the circuit's overcurrent protection.

Recommended alternatives

2
BSMD1812-110-33V package
BSMD1812-110-33V

BHFUSE

Needs validationlow risk

A pin-compatible PTC fuse from BHFUSE with matching voltage and current ratings in an 1812 package.

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Alternative comparison matrix

Feature / factormSMD110-33VBSMD1812-110-33VJK-mSMD110-33BSMD1812-150-33VCompatibility / risk
Package18121812--1812 — Form factor matches.
Voltage33.0V33.0V--33.0V — Maximum voltage rating matches.
Current1.1A2.2A--1.5A — Higher hold current reduces protection.
Power0.8W1.0W--1.0W — Slightly higher power dissipation is acceptable.
Resistance0.05-0.25Ω-0.05-0.25Ω-0.05-0.25Ω — Initial resistance range matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for mSMD110-33V are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.