
TECHFUSE
Strong functional alternative with same package and hold current, plus a higher voltage rating for more margin.
BNSTAR's SMD1206-100C-24V is a 1.0A, 24V resettable PTC fuse in a 1206 package. Several functional alternatives exist, with ASMD1206-100-24V from JDT Fuse offering a near-identical parametric profile.
Mismatched hold/trip currents can lead to inadequate circuit protection. Verification is critical.
All viable candidates share the same 1206 package, minimizing layout issues.
Direct replacement for SMD1206-100C-24V should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
ASMD1206-100-24V is the most direct replacement path due to matching key parameters.
The primary risk involves selecting a part with a higher trip current, which could compromise overcurrent protection.

TECHFUSE
Strong functional alternative with same package and hold current, plus a higher voltage rating for more margin.
| Feature / factor | SMD1206-100C-24V | ASMD1206-100-24V | nSMD100-30V | SMD1206-110C-24V | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | 1206 | 1206 | 1206 — Same package size ensures layout compatibility.; nSMD100-30V: Same package size ensures layout compatibility.; SMD1206-110C-24V: Same package size ensures layout compatibility. |
| Current | 1.8A | 1.8A | 1.0A | 2.2A | 1.8A / 1.0A / 2.2A — Trip current (It) matches target.; nSMD100-30V: Hold current (Ih) matches target.; SMD1206-110C-24V: Higher trip current (It) reduces circuit protection sensitivity. |
| Voltage | 24.0V | 24.0V | 30.0V | 24.0V | 24.0V / 30.0V — Maximum voltage (Vmax) matches target.; nSMD100-30V: Higher voltage rating provides increased design margin.; SMD1206-110C-24V: Maximum voltage (Vmax) matches target. |
| Power | 0.6W | 0.6W | 0.6W | - | 0.6W — Typical power dissipation matches.; nSMD100-30V: Typical power dissipation matches. |
Verified drop-in options for SMD1206-100C-24V 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.