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Diodes Incorporated 1.5KE43A-B — Circuit Protection

1.5KE43A-B Diodes Inc Zener TVS, 1500W, DO-201, Obsolete

MPN1.5KE43A-B
Obsolete

Diodes Incorporated 1.5KE43A-B Zener TVS diode, 1500W peak pulse power, 36.8V reverse standoff, 59.3V clamping, DO-201AA axial, bulk.

$0.7200Ref. price · indicative, final on quote
Diodes Incorporated 1.5KE43A-B datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE43A-B specifications
ParameterValue
TypeZener
MountingThrough Hole
Voltage - breakdown40.9V
Voltage - clamping (Max) @ ipp59.3V
Voltage - reverse standoff36.8V
Current - peak pulse (10/1000μs)25.3A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

1500W surge protection in a DO-201 axial package

The 1.5KE43A-B: The unidirectional channel (single diode) is intended for DC lines where polarity is fixed.

Through-hole mounting and temperature range

Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE43A-B mounts through hole and occupies the same footprint as other 1.5KE series parts — a direct drop-in for existing board layouts using that form factor.

Obsolete — sourcing through independent channels

Available through independent distribution on a lot-specific basis. Pricing and lead time are confirmed at quote — the exact part number is sourced to order against your BOM quantity.