Transient suppressor for 20.6V rails – 500W bidirectional clamp
The 1N6116A is a Zener-type TVS diode from Microchip Technology, designed to clamp voltage transients on a 20.6V nominal line. Its 500W peak pulse power rating (10/1000µs waveform) means it can absorb a single high-energy surge without failing, making it a fit for power supply inputs, relay coil suppression, or general-purpose board-level protection where the operating voltage stays under 20.6V.
Minimum breakdown voltage is 25.7V, so the device begins conducting when the line exceeds that threshold. Maximum clamping voltage at the rated 13.4A peak pulse current is 37.4V — this is the highest voltage the protected circuit sees during a surge. For a 20.6V rail, the 37.4V clamp gives about 17V of headroom above the normal operating level, which is typical for a 20% margin design. The single bidirectional channel means the 1N6116A clamps both positive and negative transients symmetrically — useful on AC signal lines or where the polarity of the surge is unknown. No power line protection feature confirms it is not rated for continuous overvoltage; it is a transient-only device.
Through-hole axial package – mounting and thermal path
Housed in a B, Axial package with through-hole mounting, the 1N6116A is a leaded device that solders into a plated through-hole on the PCB.
Active production – sourcing and lifecycle posture
The base product number is 1N6116; the 'A' suffix typically indicates a tighter tolerance or improved specification over the base 1N6116.