
BHFUSE
A strong alternative with a matching 2A hold current and slightly higher 36V rating in the same 2920 package.
Find and compare alternatives for the BNstar SMD2920-200C-33V, a 2A/33V PTC resettable fuse in a 2920 package. This page analyzes potential replacements based on key electrical and mechanical parameters.
Mismatched voltage or current ratings can lead to circuit failure or lack of protection.
Most candidates match the 2920 package, but thermal properties can vary between manufacturers.
Direct replacement for SMD2920-200C-33V should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
BSMD2920-200-48V from BHFUSE is a strong upgrade path, offering a higher voltage rating for increased robustness.
The primary risk is using a part with a lower hold current (e.g., 1.85A), which can cause nuisance tripping, or a lower voltage rating, which is a safety hazard.

BHFUSE
A strong alternative with a matching 2A hold current and slightly higher 36V rating in the same 2920 package.
| Feature / factor | SMD2920-200C-33V | BSMD2920-200-36V | BSMD2920-200-48V | SMD185L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2920 | 2920 | 2920 | 2920 | 2920 — Same package size ensures form-fit compatibility.; BSMD2920-200-48V: Same package size ensures form-fit compatibility.; SMD185L: Same package size ensures form-fit compatibility.; SMD2920P185TF: Same package size ensures form-fit compatibility. |
| Voltage | 33V | 36V | 48V | 33V | 36V / 48V / 33V — Slightly higher voltage rating provides a safety margin.; BSMD2920-200-48V: Higher voltage rating provides increased safety margin.; SMD185L: Maximum voltage rating matches the target.; SMD2920P185TF: Maximum voltage rating matches the target. |
| Current | 4.0A | 4.0A | 2.0A | 1.85A | 4.0A / 2.0A / 1.85A — Trip current matches target specification.; BSMD2920-200-48V: Hold current matches target specification.; SMD185L: Lower hold current may cause nuisance tripping in some circuits.; SMD2920P185TF: Lower hold current may cause nuisance tripping in some circuits. |
| Power | 1.5W | - | 2.0W | - | 2.0W — Higher power dissipation may alter thermal behavior. |
Verified drop-in options for SMD2920-200C-33V 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.