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Vishay General Semiconductor - Diodes Division 1.5KE47CA-E3/51 — Circuit Protection

Vishay 1.5KE47CA-E3/51 TransZorb TVS, 1500W, 40.2V Standoff

MPN1.5KE47CA-E3/51
Last Buy

Vishay General Semiconductor - Diodes Division TransZorb® bidirectional TVS diode, 1.5KE series, 1.5KE47CA-/51, 1500W peak pulse power, 40.2V reverse standoff, DO-201AA axial, Bulk.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE47CA-E3/51 specifications
ParameterValue
TypeZener
SeriesTransZorb®
MountingThrough Hole
Voltage - breakdown44.7V
Voltage - clamping (Max) @ ipp64.8V
Voltage - reverse standoff40.2V
Current - peak pulse (10/1000μs)23.1A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Bidirectional channels1

Product details

Surge protection for 40V rails — 1500W bidirectional clamp

The 1.5KE47CA-E3/51: The bidirectional single-channel design means it protects both polarities from a single device, eliminating the need for series or anti-parallel configurations on AC-coupled or bipolar signal lines.

Last Buy — sourcing window is closing

Vishay has placed the 1.5KE47CA-/51 in Last Buy status. This means the manufacturer is winding down production — the remaining inventory is the final opportunity to secure genuine, factory-traceable parts for BOM commitments or last-time-buy requirements. Sourcing is through independent distribution channels; availability and pricing are confirmed at RFQ against the specific quantity and date-code requirements.

Through-hole axial package — DO-201AA / DO-27 footprint

The 1.5KE supplier device package designation confirms mechanical interchangeability within the series. Operating temperature range spans -55°C to +175°C, covering industrial, automotive under-hood, and telecom outdoor cabinet environments without derating concerns at the high end.

Frequently asked questions

Where can I buy the 1.5KE47CA-/51 and what is the lead time?

Sourced through independent distribution channels against an RFQ. Submit an RFQ for your target quantity and preferred date-code range.

What are the key clamping specifications for this TVS diode?

Reverse standoff voltage is 40.2V, minimum breakdown is 44.7V, and maximum clamping at 23.1A peak pulse current is 64.8V. Peak pulse power is 1500W for a 10/1000µs waveform.