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Microchip Technology SMCJ48CAE3/TR13 — Circuit Protection

SMCJ48CAE3/TR13 – Microchip 1500W Bidirectional TVS Diode

MPNSMCJ48CAE3/TR13
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Microchip Technology SMCJ48CAE3/TR13, Zener TVS Diode, 1500W (1.5kW) Peak Pulse Power, 48V Reverse Standoff, Bidirectional, DO-214AB (SMC), Tape & Reel

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

Specifications

SMCJ48CAE3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown53.3V
Voltage - clamping (Max) @ ipp77.4V
Voltage - reverse standoff48V
Current - peak pulse (10/1000μs)19.4A
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

TVS clamp for 48V rails – peak pulse power and clamp voltage

The 48V reverse standoff voltage matches 48V DC buses commonly found in telecom rectifiers, industrial power supplies, and battery-backed systems. Clamp voltage is 77.4V maximum at the 19.4A peak pulse current — the figure to budget for downstream device stress. The breakdown voltage min of 53.3V ensures the device starts conducting before the protected circuitry sees a damaging overvoltage.

Package, mounting, and temperature range

Microchip Technology continues production.

Frequently asked questions

Is SMCJ48CAE3/TR13 a suitable replacement for SMCJ48A?

SMCJ48A is a unidirectional TVS; SMCJ48CAE3/TR13 is bidirectional. Both share the same 48V standoff and 1500W peak pulse rating, but the bidirectional variant clamps both polarities. If the original design uses a unidirectional part, confirm the circuit can tolerate the symmetrical breakdown characteristic before substituting.

What is the difference between SMCJ48CAE3/TR13 and SMCJ48CA/TR13?

The '' suffix on SMCJ48CAE3/TR13 indicates Microchip's lead (Pb)-free and RoHS-compliant finish. The non- variant (SMCJ48CA/TR13) may contain lead in the solder plating. Electrical specs — 1500W peak pulse, 48V standoff, 77.4V clamp — are identical between the two.