FSMD016-1206-R
FUZETEC
Needs validationlow risk
Strong alternative with matching package, voltage, hold current, and trip current.
Best Alternatives to RF1344-000
Find alternatives for the Littelfuse RF1344-000, a 48V, 160mA PTC resettable fuse in a 1206 package. This guide reviews pin-compatible and functional alternatives, highlighting key parametric differences.
AI replacement insight
Electrical riskmedium
Trip time-current curves must be verified to ensure proper protection.
Package risklow
1206 is a standard package, ensuring mechanical compatibility.
Sourcing risklow
Multiple vendors produce similar 1206 PTC fuses.
Can it be replaced directly?
Direct replacement for RF1344-000 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
FSMD016-1206-R is the most direct replacement path, with matching key electrical and physical parameters.
Main risk
The primary risk is a mismatch in trip characteristics (current vs. time curve), which could compromise circuit protection or cause nuisance faults.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | RF1344-000 | FSMD016-1206-R | nSMD016-48V | nSMD020-48V | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | 1206 | 1206 | 1206 — Form factor matches.; nSMD016-48V: Form factor matches.; nSMD020-48V: Form factor matches. |
| Voltage | 48V | 48V | 48V | 48V | 48V — Maximum voltage rating matches.; nSMD016-48V: Maximum voltage rating matches.; nSMD020-48V: Maximum voltage rating matches. |
| Current | 450mA | 450mA | 370mA | 0.20A | 450mA / 370mA / 0.20A — Trip current matches.; nSMD016-48V: Trip current is lower.; nSMD020-48V: Hold current is higher. |
Application & sourcing insights
Questions & answers
Verified drop-in options for RF1344-000 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.