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onsemi 1N6272A — Circuit Protection

1N6272A onsemi Mosorb™ Zener TVS 1500W DO-201AD Obsolete

MPN1N6272A
Obsolete

onsemi Mosorb™ series, Zener TVS diode, 1N6272A, 1500W peak pulse power, 9.4V reverse standoff, 15.6V clamping, DO-201AD axial through-hole package, unidirectional, obsolete.

onsemi 1N6272A datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1N6272A specifications
ParameterValue
TypeZener
SeriesMosorb™
MountingThrough Hole
Voltage - breakdown10.5V
Voltage - clamping (Max) @ ipp15.6V
Voltage - reverse standoff9.4V
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

Transient suppressor for 9.4V rails — peak pulse rating and clamping

The 1N6272A is a unidirectional Zener TVS diode from the onsemi Mosorb™ series, rated for 1500W peak pulse power (1.5kW) at 10/1000 µs waveform. With a reverse standoff voltage of 9.4V and a maximum clamping voltage of 15.6V at the rated peak pulse current, it is designed to protect 9V or 10V DC power rails from transient overvoltage events such as inductive load switching or lightning-induced surges.

Obsolete — sourcing reality and replacement planning

onsemi has marked the 1N6272A as Obsolete. A design-in replacement should be identified and qualified before the existing stock is exhausted.

Package and temperature range for through-hole board fit

The 1N6272A is supplied in a DO-201AD axial-lead through-hole package, with a bulk (tube or loose) packaging option.

Breakdown voltage and unidirectional configuration

The minimum breakdown voltage at 1 mA is 10.5V. The device has a single unidirectional channel and does not include power line protection features — it is intended for signal or low-voltage DC rail clamping, not for AC mains or high-voltage bus protection.

Frequently asked questions

What is the power rating of the 1N6272A?

The 1N6272A is rated for 1500W peak pulse power (1.5kW) under a 10/1000 µs waveform. This is the peak power it can dissipate during a transient event; steady-state power dissipation is much lower and depends on the heatsinking and duty cycle.

What is the difference between 1N6272A and 1N6272?

The suffix 'A' typically indicates a tighter tolerance on the breakdown voltage in the 1N6272 series. The 1N6272A has a minimum breakdown of 10.5V, while the non-A version has a wider range. The clamping and standoff voltages are the same for both variants.