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Microchip Technology 1N6155AUS/TR — Circuit Protection

1N6155AUS/TR Zener TVS Diode – 1500W, 27.4V Standoff

MPN1N6155AUS/TR
Active

Microchip Technology 1N6155AUS/TR, Zener TVS diode, 1500W peak pulse power, 27.4V reverse standoff, single bidirectional channel, SQ-MELF surface-mount package on Tape & Reel.

$20.2201Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1N6155AUS/TR specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown34.2V
Voltage - clamping (Max) @ ipp49.9V
Voltage - reverse standoff27.4V
Current - peak pulse (10/1000μs)30.1A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C ~ 175°C (TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseSQ-MELF, C
Bidirectional channels1

Product details

Transient clamp for 24V rails

The 1N6155AUS/TR: Its 27.4V reverse standoff voltage sits comfortably above a nominal 24V bus, while the minimum breakdown of 34.2V and maximum clamp of 49.9V keep the surge voltage below downstream component ratings. The 30.1A peak pulse current handles the energy from a typical industrial transient without entering secondary breakdown.

Active production, Tape & Reel delivery

Microchip lists the 1N6155AUS/TR as Active. It ships in Tape & Reel in the SQ-MELF, C package — a surface-mount ceramic body with a cylindrical footprint. Sourced and quoted per RFQ against BOM quantities.

Frequently asked questions

Can 1N6155AUS/TR be used on a 24V DC bus?

Yes. The reverse standoff voltage is 27.4V, which is 3.4V above a nominal 24V rail. The breakdown minimum of 34.2V ensures the device does not conduct during normal operation, while clamping at 49.9V limits the transient to a safe level for downstream silicon rated at 60V or higher.

Is 1N6155AUS/TR unidirectional or bidirectional?

Bidirectional — one channel clamps both positive and negative surges. This eliminates the need for two unidirectional parts in series, simplifying PCB layout and reducing component count.