
BHFUSE
A strong pin-to-pin alternative from BHFUSE with matching package, voltage, and current ratings.
Find the best alternatives for the JK-SMD1210-050-24V PTC resettable fuse. This page reviews pin-compatible replacements and functional alternates, highlighting key differences in voltage and current ratings to ensure safe and reliable circuit protection.
Selecting a part with higher hold/trip currents (e.g., JK-SMD1210-075-24) will reduce protection and could lead to circuit damage.
All viable candidates use the standard 1210 package, minimizing layout issues.
Yes, BSMD1210-050-24V is a direct parametric match. SMD1210-050-30V is also a strong candidate with a higher voltage rating.
BSMD1210-050-24V by BHFUSE is the most direct replacement, matching all key electrical parameters and package.
The main risk is selecting a part with incorrect current ratings, which could compromise circuit protection.

BHFUSE
A strong pin-to-pin alternative from BHFUSE with matching package, voltage, and current ratings.
| Feature / factor | JK-SMD1210-050-24V | BSMD1210-050-24V | SMD1210-050-30V | JK-SMD1210-075-24 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1210 | 1210 | 1210 | 1210 | 1210 — Form and fit match.; SMD1210-050-30V: Form and fit match.; JK-SMD1210-075-24: Form and fit match. |
| Voltage | 24V | 24V | 30V | 24V | 24V / 30V — Maximum voltage rating matches.; SMD1210-050-30V: Higher voltage rating provides increased safety margin.; JK-SMD1210-075-24: Maximum voltage rating matches. |
| Current | 1A | 1.0A | 1.0A | 1.5A | 1.0A / 1.5A — Trip current matches.; SMD1210-050-30V: Trip current matches.; JK-SMD1210-075-24: Higher trip current reduces protection level. |
| Power | 0.6W | 0.6W | - | - | 0.6W — Typical power dissipation matches. |
The best alternative is BSMD1210-050-24V from BHFUSE, as it matches the package, voltage, hold current, and trip current. Another excellent option is SMD1210-050-30V from TECHFUSE, which offers a higher voltage rating for added safety.