
BHFUSE
A strong 1206 PTC fuse alternative with matching 5A hold current and 6V rating.
Finding a replacement for the BNstar SMD1206-500-6V PTC fuse involves matching its 5A hold current, 6V rating, and 1206 package. While several options exist, careful attention to electrical parameters is critical for safety.
Using a part with incorrect hold/trip current can damage the circuit or cause nuisance trips.
The 1206 package is standardized, but minor dimensional differences between vendors should be checked.
Alternatives are available from multiple vendors, but supply chain should be verified.
Direct replacement for SMD1206-500-6V should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The BHFUSE BSMD1206L-500 is a strong candidate, matching key electrical and physical specifications.
The primary risk is substituting a part with a different hold current, which would alter the circuit's overcurrent protection threshold.

BHFUSE
A strong 1206 PTC fuse alternative with matching 5A hold current and 6V rating.
| Feature / factor | SMD1206-500-6V | BSMD1206L-500 | SMD1206-600-6V | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | 1206 | 1206 — Form factor matches.; SMD1206-600-6V: Form factor matches. | |
| Current | 5.0 A | 5.0 A | 6.0 A | 5.0 A / 6.0 A — Hold current matches.; SMD1206-600-6V: Hold current is 20% higher, reducing protection. | |
| Voltage | 6.0 V | 6.0 V | 6.0 V | 6.0 V — Voltage rating matches.; SMD1206-600-6V: Voltage rating matches. | |
| Power | 1.5 W | 1.2 W | 1.5 W | 1.2 W / 1.5 W — Slightly lower power dissipation, generally acceptable.; SMD1206-600-6V: Power dissipation matches. | |
| Manufacturer | BNstar | BHFUSE | - | BHFUSE — Different manufacturer requires qualification. |
Verified drop-in options for SMD1206-500-6V 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.