10 V rail transient clamp in DO-214AA
The SMBJ10AE3/TR13 is a unidirectional Zener TVS diode from Microchip, rated for 600 W peak pulse power per the 10/1000 µs waveform. It clamps a 10 V nominal rail: reverse standoff is 10 V, minimum breakdown is 11.1 V, and maximum clamping at rated current is 17 V. That 17 V ceiling protects downstream silicon rated for 20 V or higher — a common margin for 12 V bus transients.
Peak pulse current and thermal budget
The 35.3 A peak pulse current rating at 10/1000 µs defines the surge the part can absorb without failing short. No power line protection means this is a signal-rail or low-power supply clamp, not a mains-side MOV replacement.
The base product number is SMBJ10; the suffix indicates the standard lead-free / RoHS-compliant finish.