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Microchip Technology SMCJ120CAE3/TR13 — Circuit Protection

SMCJ120CAE3/TR13 TVS Diode – 120 V Standoff, 1500 W

MPNSMCJ120CAE3/TR13
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Microchip Technology SMCJ120CAE3/TR13, bidirectional Zener TVS, 120 V reverse standoff, 1500 W peak pulse power, DO-214AB (SMC) package, Tape & Reel.

$0.5850Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMCJ120CAE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown133V
Voltage - clamping (Max) @ ipp193V
Voltage - reverse standoff120V
Current - peak pulse (10/1000μs)7.8A
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

120 V rail clamp — 1.5 kW pulse rating

The SMCJ120CAE3/TR13: Its 133 V minimum breakdown voltage ensures the clamp triggers before the downstream silicon sees damaging voltage, while the 193 V maximum clamping voltage at 7.8 A peak pulse current limits the let-through energy during a surge.

DO-214AB (SMC) — surface-mount footprint

Housed in the DO-214AB (SMC) package, the SMCJ120CAE3/TR13 offers a compact surface-mount solution for high-density PCB layouts.

The BOM line can be committed without an imminent last-time-buy window.

Frequently asked questions

Can SMCJ120CAE3/TR13 replace SMCJ120A?

The SMCJ120A is a unidirectional version of the same base part number. The SMCJ120CAE3/TR13 is bidirectional — it clamps both positive and negative transients. If the original design used a unidirectional TVS with the cathode band oriented to the rail, swapping to a bidirectional part will still protect the rail but loses the polarity-specific clamping characteristic. Confirm the circuit topology before substituting.