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Microchip Technology 1N6168AUS — Circuit Protection

1N6168AUS – 1500W Bidirectional TVS Diode, SQ-MELF

MPN1N6168AUS
Active

Microchip Technology 1N6168AUS, Zener TVS, bidirectional, 1500W peak pulse power, 91.2V reverse standoff, 165.1V clamp, SQ-MELF C package, surface mount.

$20.6101Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1N6168AUS specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown114V
Voltage - clamping (Max) @ ipp165.1V
Voltage - reverse standoff91.2V
Current - peak pulse (10/1000μs)9.1A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseSQ-MELF, C
Bidirectional channels1

Product details

1500W bidirectional transient suppressor in a surface-mount MELF

The 91.2V reverse standoff voltage means it sits across a 90V DC rail without conducting leakage; the 114V minimum breakdown is the trigger point where clamping begins. At the full 9.1A peak pulse current the clamp voltage reaches 165.1V — the number to compare against your downstream component's absolute maximum rating.

Junction temperature range and package constraints

The SQ-MELF C package is a surface-mount cylindrical body; the metalized ends are the anode and cathode. Reflow profile needs a longer soak zone than a standard SOT-23 to avoid tombstoning — the cylindrical shape rocks if paste volume is uneven.

Microchip lists the 1N6168AUS as Active. The base product number 1N6168 covers the family; the AUS suffix denotes the bidirectional SQ-MELF variant.

Frequently asked questions

Is the 1N6168AUS a bidirectional TVS diode?

Yes — the 1N6168AUS has one bidirectional channel, meaning it clamps both positive and negative transients in a single package. This simplifies board layout for AC-coupled lines or bipolar supplies where two unidirectional devices would otherwise be needed.