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onsemi 1N6287ARL4 — Circuit Protection

1N6287ARL4 onsemi Mosorb™ Zener TVS 1500W DO-201AD Obsolete

MPN1N6287ARL4
Obsolete

onsemi Mosorb™ series, Zener TVS diode, 1N6287ARL4, 1500W peak pulse power, 40.2V reverse standoff, DO-201AD axial through-hole package.

onsemi 1N6287ARL4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1N6287ARL4 specifications
ParameterValue
TypeZener
SeriesMosorb™
MountingThrough Hole
Voltage - breakdown44.7V
Voltage - clamping (Max) @ ipp64.8V
Voltage - reverse standoff40.2V
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~175°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-201AD, Axial
Unidirectional channels1

Product details

1500W Zener TVS — 40.2V standoff, DO-201AD axial

It clamps a 40.2V reverse standoff rail to a maximum of 64.8V at the rated Ipp, with a minimum breakdown voltage of 44.7V. The DO-201AD axial package suits through-hole board layouts where a single device guards a DC bus or signal line against surges.

onsemi lists the 1N6287ARL4 as Obsolete. Confirm the date-code range and quantity needed at quote time.

Peak pulse power and voltage selection

The 1500W peak pulse power is specified at 25°C — derate linearly above that per the datasheet curve.

Frequently asked questions

What is the replacement for 1N6287ARL4?

onsemi does not list a direct factory successor for the 1N6287ARL4. For a functionally equivalent Zener TVS with the same 1500W peak pulse power, 40.2V standoff, and DO-201AD package, cross-reference the base number 1N6287 in the Mosorb™ series — other suffix variants (e.g., 1N6287A, 1N6287ARL4G) may be available from surplus stock. Confirm the exact breakdown and clamping voltage match your rail before substituting.