The SMAJ14CA-13 is a bidirectional TVS diode from Diodes Incorporated, part of the SMAJ series, in a DO-214AC (SMA) surface-mount package. The 400 W rating means this device can absorb transient energy up to that level without failing — useful for clamping surges on 12 V or 24 V DC rails where the steady-state voltage stays below 14 V. The bidirectional configuration (single channel) protects against both positive and negative transients with one component.
Operating range and package fit
Junction temperature range is -55°C to +150°C, covering industrial and some automotive under-hood environments. The DO-214AC footprint is standard for SMA diodes — the cathode band is marked on the body, though for a bidirectional part the orientation is non-polarized. Supplied in Tape & Reel (TR) or Cut Tape (CT) options, the SMAJ14CA-13 is compatible with standard pick-and-place assembly. The base product number is SMAJ14, so the -13 suffix indicates the reel packaging variant.