600 W bidirectional TVS – 15 V rail protection in DO-214AA
The SMBJ15CAE3/TR13: It clamps a transient to 24.4 V maximum at 24 A peak pulse current. The bidirectional construction means a single device protects a signal pair or a bipolar rail against both positive and negative surges — no polarity orientation needed on the board. The breakdown voltage range starts at 16.7 V minimum, so the part stays transparent below that threshold and only conducts when the transient exceeds the normal operating envelope.
16.7 V breakdown – 24.4 V clamp – 24 A peak pulse
The three-voltage window — 15 V reverse standoff, 16.7 V minimum breakdown, 24.4 V maximum clamping — defines the protection corridor. At 15 V the diode draws negligible leakage; above 16.7 V it begins to avalanche; at 24.4 V it limits the voltage seen by the downstream circuitry. The 24 A peak pulse current rating (10/1000 µs) gives the surge capacity for typical industrial transient events like inductive load switching or lightning-induced surges on long cable runs.
Active production – DO-214AA SMB – Tape & Reel
Microchip lists the SMBJ15CAE3/TR13 as Active. The part ships in a Tape & Reel package suited for automated pick-and-place assembly. The DO-214AA (SMB) footprint is a common surface-mount package for 600 W TVS diodes, making it a drop-in fit for many existing board layouts.