TVS diode for 24V automotive bus protection
The 1.5SMC24CAHM3/I: It clamps transient overvoltages on a 20.5 V nominal rail — the reverse standoff voltage — making it a direct fit for protecting 24 V automotive electronics, telecom line cards, and industrial control buses.
Clamping performance and pulse handling
The 33.2 V clamp ceiling is below the typical absolute-maximum rating of downstream 36 V-rated components, so the TVS absorbs the surge before the load sees damaging voltage. The device is not intended for power line protection (the power line protection flag is set to No), so its role is signal and low-power supply rail clamping, not mains transient suppression.
The package supports reflow soldering; the tape-and-reel delivery suits high-volume pick-and-place assembly. No special bake-out is required if stored per JEDEC moisture sensitivity level 1 — but confirm the reel label for the specific MSL rating before opening the moisture barrier bag.
Active lifecycle and sourcing
No official successor or second-source cross-reference is recorded, but the 1.5SMC base product number (1.5SMC24) is shared across multiple Vishay variants, so a parametric match for the same standoff and package is straightforward if a second source is needed.