Is there a pin-compatible replacement for SMD2920P075TF?

Yes, many 2920 package PTC fuses are pin-compatible, including TLC-LSMD100 and RUILON's SMD2920P100TF. However, electrical parameters like hold current must be verified for suitability.

What risks should I check before replacing SMD2920P075TF?

The main risk is using a replacement with a different hold current. A higher hold current (e.g., >1A) will not protect the circuit at the intended 0.75A level and could lead to damage.

SMD2920P075TF Alternatives, Datasheet & Cross Reference | RUILON

Finding a substitute for the RUILON SMD2920P075TF PTC fuse requires matching the 33V rating and 2920 package, with careful attention to the 0.75A hold current. Alternatives may have different current ratings.

AI replacement insight

Electrical riskmedium

Higher hold current on all candidates reduces overcurrent protection.

Package risklow

All candidates share the same 2920 package, ensuring physical compatibility.

Can it be replaced directly?

No direct, drop-in replacement with identical key parameters was found. All viable alternatives have a higher hold current, which alters the circuit's protection level and requires engineering validation.

Best replacement path

The best path is to select a candidate from the same manufacturer series, like SMD2920P100TF, but requires careful validation of the higher hold current.

Main risk

The primary risk is a mismatch in hold current. Using a part with a higher hold current will not protect the circuit at the intended threshold, potentially leading to damage.

Recommended alternatives

From the same manufacturer series in a 2920 package, but with a higher hold current that requires engineering review.

View details

Alternative comparison matrix

Feature / factor	SMD2920P075TF	SMD2920P100TF	TLC-LSMD100	Compatibility / risk
Package	2920	2920	2920	2920 — Same package and footprint.; TLC-LSMD100: Same package and footprint.
Voltage	33V	33V	33V	33V — Maximum voltage rating matches.; TLC-LSMD100: Maximum voltage rating matches.
Current	1.5A	2.2A	2.0A	2.2A / 2.0A — Trip current is also higher.; TLC-LSMD100: Trip current is also higher.

Application & sourcing insights

Questions & answers

The best alternatives are other 2920 PTC fuses with a 33V rating and a hold current near 0.75A. Candidates like SMD2920P100TF exist but have higher hold currents, requiring design review.