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Microchip Technology SMCJ20CE3/TR13 — Circuit Protection

SMCJ20CE3/TR13 TVS Diode – 1500W Bidirectional Zener

MPNSMCJ20CE3/TR13
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Microchip Technology SMCJ20CE3/TR13, bidirectional Zener TVS diode, 1500W peak pulse power, 20V reverse standoff, DO-214AB (SMC) surface-mount package, Tape & Reel.

$0.5850Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMCJ20CE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown22.2V
Voltage - clamping (Max) @ ipp35.8V
Voltage - reverse standoff20V
Current - peak pulse (10/1000μs)41.9A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Bidirectional channels1

Product details

What this TVS diode does for your board

The SMCJ20CE3/TR13 is a bidirectional Zener TVS diode rated for 1500W peak pulse power (10/1000µs waveform) with a 20V reverse standoff voltage. When a transient exceeds the 22.2V minimum breakdown voltage, the diode clamps to 35.8V maximum, shunting up to 41.9A of surge current away from the protected circuit. The single bidirectional channel means you can place it across AC signal lines or bipolar DC rails without worrying about polarity — one component replaces two unidirectional diodes in series.

Temperature range and field fit

That covers automotive underhood, outdoor telecom cabinets, and industrial enclosures without needing a separate high-temp variant. The DO-214AB (SMC) package footprint is common.

Frequently asked questions

Can SMCJ20CE3/TR13 replace SMCJ20A?

The SMCJ20A is a unidirectional TVS diode; the SMCJ20CE3/TR13 is bidirectional. They share the same 20V standoff and DO-214AB package, but the bidirectional version clamps both polarities. If your circuit expects a unidirectional clamp, swapping to a bidirectional part may leave the protected line at a different clamping threshold during negative transients — verify the waveform polarity before substituting.

What is the closest pin-compatible alternative to SMCJ20CE3/TR13 in this Circuit Protection family?

Within the SMCJ series, the SMCJ20CA is a bidirectional 1500W TVS with the same 20V standoff and DO-214AB package. The SMCJ20CE3/TR13 is the Microchip-branded version; the SMCJ20CA is a generic industry-standard part. Both are pin-compatible and electrically identical for most applications.