
BNstar
Shares package and voltage but has a higher 0.75A hold current, requiring design review.
Find and compare replacements for the BNSTAR SMD1206-050C-30V, a 1206 PTC resettable fuse with a 0.5A hold current and 30V rating. This page analyzes alternatives based on key electrical and mechanical parameters.
Many alternatives have a higher hold current, which compromises protection.
The 1206 package is a common industry standard, ensuring mechanical compatibility.
Direct replacement for SMD1206-050C-30V should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The best path is to find a PTC fuse with a matching 0.5A hold current, 30V rating, and 1206 package, such as ASMD1206-050-30V.
The main risk is using a replacement with a different hold current, which will not protect the circuit at the intended threshold.

BNstar
Shares package and voltage but has a higher 0.75A hold current, requiring design review.
| Feature / factor | SMD1206-050C-30V | ASMD1206-050-30V | SMD1206-075C-30V | nSMD075-30V | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | 1206 | 1206 | 1206 — Form factor matches.; SMD1206-075C-30V: Form factor matches.; nSMD075-30V: Form factor matches.; nSMD100-30V: Form factor matches. |
| Voltage | 30V | 30V | 30V | 30V | 30V — Maximum voltage rating matches.; SMD1206-075C-30V: Maximum voltage rating matches.; nSMD075-30V: Maximum voltage rating matches.; nSMD100-30V: Maximum voltage rating matches. |
| Current | 1.00A | 1.0A | 1.50A | 1.50A | 1.0A / 1.50A — Trip current matches.; SMD1206-075C-30V: Higher trip current, consistent with higher hold current.; nSMD075-30V: Higher trip current.; nSMD100-30V: Doubled hold current poses high risk to circuit protection. |
| Resistance | 0.15Ω / 0.70Ω | unknown | - | - | unknown — Verify initial and tripped resistance from datasheet. |
Verified drop-in options for SMD1206-050C-30V 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.