
BHFUSE
A cross-vendor alternative with matching 4A hold current and superior 30V/2.5W ratings.
Find and compare replacements for the ASMD2920-400, a 4A/16V PTC resettable fuse in a 2920 package. Top alternatives offer higher voltage or power ratings from the same or competing manufacturers.
Mismatched hold/trip current or trip time can affect circuit protection. Must be verified.
The 2920 package is standardized, making physical replacement straightforward.
Multiple vendors produce compatible parts, ensuring a stable supply chain.
Yes, several direct replacements are available. The best is ASMD2920-400-24V, an upgrade from the same manufacturer with matching current ratings.
Upgrade to ASMD2920-400-24V from the same manufacturer for a higher voltage rating and identical performance.
The main risk is selecting a part with a higher hold current, which would compromise the circuit's overcurrent protection.

BHFUSE
A cross-vendor alternative with matching 4A hold current and superior 30V/2.5W ratings.
| Feature / factor | ASMD2920-400 | ASMD2920-400-24V | BSMD2920-400-30V | BSMD2920-400-16V | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2920 | 2920 | 2920 | 2920 | 2920 — Form factor matches.; BSMD2920-400-30V: Form factor matches.; BSMD2920-400-16V: Form factor matches.; BSMD2920-500-16V: Form factor matches. |
| Current | 4.0A | 4.0A | 4.0A | 4.0A | 4.0A / 5.0A — Hold current matches.; BSMD2920-400-30V: Hold current matches.; BSMD2920-400-16V: Hold current matches.; BSMD2920-500-16V: Higher hold current (5A vs 4A) reduces protection. |
| Voltage | 16.0V | 24.0V | 30.0V | 16.0V | 24.0V / 30.0V / 16.0V — Higher voltage rating provides more design margin.; BSMD2920-400-30V: Higher voltage rating provides more design margin.; BSMD2920-400-16V: Voltage rating matches.; BSMD2920-500-16V: Voltage rating matches. |
| Power | 1.5W | 1.5W | 2.5W | 2.5W | 1.5W / 2.5W — Power dissipation matches.; BSMD2920-400-30V: Higher power dissipation is an improvement.; BSMD2920-400-16V: Higher power dissipation is an improvement.; BSMD2920-500-16V: Higher power dissipation is an improvement. |
The best alternative is ASMD2920-400-24V. It is made by the same manufacturer, Shenzhen JDT Fuse, and offers a higher voltage rating (24V vs 16V) while matching the critical 4A hold current.