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onsemi 1N6271A — Circuit Protection

1N6271A onsemi Mosorb™ Zener TVS – 1500 W, DO-201AD Axial

MPN1N6271A
Obsolete

onsemi Mosorb™ series, Zener TVS diode, 1N6271A, 1500 W peak pulse power, 8.55 V reverse standoff, 14.5 V clamping, DO-201AD axial through-hole package.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1N6271A specifications
ParameterValue
TypeZener
SeriesMosorb™
MountingThrough Hole
Voltage - breakdown9.5V
Voltage - clamping (Max) @ ipp14.5V
Voltage - reverse standoff8.55V
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AD, Axial
Unidirectional channels1

Product details

It clamps at 14.5 V maximum with a reverse standoff of 8.55 V, protecting downstream circuitry from voltage transients in general-purpose applications.

Sourcing this obsolete part — what to expect

onsemi lists the 1N6271A as Obsolete.

Package and temperature range for repair fit

The DO-201AD axial package is the same body size as the 1.5KE series — 9.1 mm body length, 1.3 mm lead diameter — so it fits existing through-hole pads on boards designed for that footprint.

Frequently asked questions

How can I order the 1N6271A or check availability?

The 1N6271A is obsolete per onsemi. We source it to order against your BOM quantity — submit an RFQ and we will confirm availability and current pricing from our supply network. No stock-holding claim; lead time and price are quoted per request.

What is the replacement for the 1N6271A?

No official replacement is listed by onsemi. For a pin-compatible alternative in the same DO-201AD package, consider the 1.5KE series (e.g., 1.5KE9.1A) which has the same 1500 W rating and similar breakdown voltage — verify the clamping voltage and reverse standoff match your circuit's protection threshold.