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Vishay General Semiconductor - Diodes Division 1.5KE22A-E3/51 — Circuit Protection

1.5KE22A-E3/51 Vishay TransZorb TVS, 1500W, 18.8V Standoff

MPN1.5KE22A-E3/51
Last Buy

Vishay General Semiconductor TransZorb® series, Zener TVS diode, 1500W peak pulse, 18.8V reverse standoff, DO-201AA/DO-27 axial, through-hole, bulk.

$0.7268Ref. price · indicative, final on quote
Vishay General Semiconductor - Diodes Division 1.5KE22A-E3/51 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE22A-E3/51 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown20.9V
Voltage - clamping (Max) @ ipp30.6V
Voltage - reverse standoff18.8V
Current - peak pulse (10/1000μs)49A
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 clamping window for 18.8V rails

The 1.5KE22A-E3/51: Its 20.9V minimum breakdown voltage and 30.6V maximum clamping at 49A peak pulse current define the protection window — the rail must stay below 18.8V during normal operation, and the downstream equipment must survive the clamped 30.6V peak.

Last Buy — sourcing window closing

Vishay has placed the 1.5KE22A-/51 in Last Buy status. This is the final production run — once existing stock is exhausted, no further units will be manufactured. For BOM lines that require this exact order code, the procurement window is now open; quantities are confirmed at RFQ.

Through-hole axial footprint for board-level protection

Housed in a DO-201AA / DO-27 axial leaded package, this part mounts through-hole — a standard footprint for high-power transient suppression where board real estate is not the constraint.

Frequently asked questions

What package does the 1.5KE22A-/51 use?

DO-201AA / DO-27 axial leaded through-hole package, supplied in bulk.