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Microchip Technology 1N6463US — Circuit Protection

1N6463US Zener TVS Diode – 500W, 12V Standoff, SQ-MELF

MPN1N6463US
Active

Microchip Technology 1N6463US, Zener TVS Diode, 500W Peak Pulse Power, 12V Reverse Standoff, Unidirectional, SQ-MELF B Package, -55°C to 175°C

$11.6700Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1N6463US specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown13.6V
Voltage - clamping (Max) @ ipp22.6V
Voltage - reverse standoff12V
Current - peak pulse (10/1000μs)125A (8/20µs)
Power - peak pulse500W
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseSQ-MELF, B
Unidirectional channels1

Product details

It delivers 500W peak pulse power per the 10/1000µs waveform, with a clamping voltage of 22.6V at the peak current of 125A (8/20µs).

Peak Pulse Power and Clamping Performance

At 500W peak pulse power, this part handles surges that would destroy a standard signal diode. The 12V reverse standoff voltage means the rail sits at 12V or below during normal operation; the diode only conducts when the transient exceeds the 13.6V minimum breakdown threshold. The 22.6V clamp at 125A (8/20µs) gives the downstream circuitry a hard voltage ceiling — useful for protecting 12V power inputs, sensor lines, or communication ports in industrial or avionics gear.

The SQ-MELF package is a standard hermetic format, so reel quantities are available through distribution. For BOM commitment, this part is sourced per RFQ — confirm the required quantity and delivery window, and we will quote against the current market.

Frequently asked questions

What is the peak pulse power of the 1N6463US?

The 1N6463US is rated for 500W peak pulse power, tested with a 10/1000µs waveform. At the shorter 8/20µs pulse, the peak current is 125A, clamping at 22.6V.

What is the 1N6463US used for?

It is a Zener TVS diode for general-purpose transient suppression on 12V DC rails. Typical applications include protecting power inputs, sensor interfaces, and communication lines in industrial controls, avionics, and downhole equipment where the -55°C to 175°C temperature range is required.