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Microchip Technology 1N6109AUS — Circuit Protection

1N6109AUS Zener TVS – 500 W, 9.9 V, SQ-MELF

MPN1N6109AUS
Active

Microchip 1N6109AUS, Zener TVS diode, 500 W peak pulse power, 9.9 V reverse standoff, bidirectional, SQ-MELF surface-mount package, -55°C to 175°C operation.

$18.1800Ref. price · indicative, final on quote
Microchip Technology 1N6109AUS datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1N6109AUS specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown12.35V
Voltage - clamping (Max) @ ipp18.2V
Voltage - reverse standoff9.9V
Current - peak pulse (10/1000μs)27.5A
Power - peak pulse500W
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseSQ-MELF, B
Bidirectional channels1

Product details

The 1N6109AUS: For a BOM line protecting a 12 V rail, this avoids the requalification cost of a last-time-buy or substitute search.

500 W peak pulse power in a hermetic SQ-MELF

The 9.9 V reverse standoff voltage means it sits on a 12 V nominal rail without conducting, then shunts transients above the 12.35 V breakdown minimum.

Hermetic SQ-MELF for harsh environments

This temperature range suits avionics, downhole instrumentation, and military power supplies where commercial plastic packages would delaminate or degrade.

Bidirectional channel — no polarity restrictions

This eliminates the need to orient the diode on the PCB, simplifying layout on AC-coupled signal lines or bipolar power buses.

Frequently asked questions

Where can I buy the 1N6109AUS and request a quote?

The 1N6109AUS is an Active Microchip part. Submit an RFQ through this page with your target quantity and target price; we source against the BOM line and confirm availability and current pricing at quote time. No stock-holding claim — sourced per order.

Is the 1N6109AUS RoHS compliant?

The evidence does not list a RoHS compliance status for this order code. Confirm with the datasheet or your Microchip field contact before committing the BOM.

What is the peak pulse power of the 1N6109AUS?

500 W peak pulse power measured with a 10/1000 µs waveform. This is the maximum power the device can dissipate in a single transient event before the junction temperature exceeds the rated limit.

What package does the 1N6109AUS come in?

Hermetic SQ-MELF, B case (surface mount). The ceramic body and glass seal provide moisture resistance and thermal cycling endurance beyond plastic SMD packages.