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Microchip Technology 1N6143A — Circuit Protection

1N6143A TVS Diode – 1500W Bidirectional Zener, Axial, Active

MPN1N6143A
Active

Microchip Technology 1N6143A, Zener TVS diode, 1500W peak pulse power, single bidirectional channel, 8.4V reverse standoff, 15.6V clamping at 96.2A, through-hole axial package, -55°C to 175°C operating range.

$16.9400Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1N6143A specifications
ParameterValue
TypeZener
MountingThrough Hole
Voltage - breakdown10.45V
Voltage - clamping (Max) @ ipp15.6V
Voltage - reverse standoff8.4V
Current - peak pulse (10/1000μs)96.2A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseB, Axial
Bidirectional channels1

Product details

1500W peak pulse power, bidirectional Zener clamp

It handles a peak pulse current of 96.2A under the 10/1000µs waveform, with a clamping voltage of 15.6V at that current. The 8.4V reverse standoff means it sits transparently on a 5V or 3.3V rail, only conducting when the line exceeds that threshold. This is a through-hole axial part (B, Axial package), so it is a field-swappable component — no hot-air station needed.

Active production, through-hole axial package

The through-hole axial package (B, Axial) is a standard footprint that fits existing board layouts without redesign.

Frequently asked questions

Is the 1N6143A bidirectional or unidirectional?

It is a single bidirectional channel device — it clamps transients of both polarities, which is useful for AC-coupled lines or DC lines where reverse voltage may occur.