
TECHFUSE
Strong alternative from TECHFUSE with matching package, voltage, and hold/trip currents.
BSMD1812-050-33V is a 33V, 0.5A hold current PTC resettable fuse in an 1812 package. For replacements, focus on matching hold current, voltage, and package size for reliable overcurrent protection.
Using a part with a higher hold current can lead to circuit damage.
1812 is a standard SMD package with low interchangeability risk.
Yes, TECHFUSE mSMD050-33V is a potential direct replacement for BSMD1812-050-33V, sharing critical electrical and physical specifications.
Select a PTC fuse with an identical 0.5A hold current, 33V rating, and 1812 package, such as TECHFUSE mSMD050-33V.
The main risk is selecting a substitute with a higher hold current, which compromises the overcurrent protection level.

TECHFUSE
Strong alternative from TECHFUSE with matching package, voltage, and hold/trip currents.
| Feature / factor | BSMD1812-050-33V | mSMD050-33V | SMD1812-075C-33V | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1812 | 1812 | 1812 | 1812 — Identical package ensures form and fit.; SMD1812-075C-33V: Identical package ensures form and fit. | |
| Voltage | 33.0V | 33.0V | 33.0V | 33.0V — Maximum voltage rating matches.; SMD1812-075C-33V: Maximum voltage rating matches. | |
| Current | 40A | 100A | 1.5A | 100A / 1.5A — Max fault current is higher, which is a safe upgrade.; SMD1812-075C-33V: Trip current is 50% higher. |
TECHFUSE mSMD050-33V is a strong alternative, offering the same package, voltage, and current ratings.