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Microchip Technology SMCJ7.5E3/TR13 — Circuit Protection

SMCJ7.5E3/TR13 TVS Diode – 1500W, 7.5V, DO-214AB, Active

MPNSMCJ7.5E3/TR13
Active

Microchip Technology SMCJ7.5E3/TR13, Zener TVS Diode, 1500W peak pulse power, 7.5V reverse standoff, unidirectional, DO-214AB (SMC) surface mount, -65°C to 150°C operating range.

$0.5550Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMCJ7.5E3/TR13 specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown8.33V
Voltage - clamping (Max) @ ipp14.3V
Voltage - reverse standoff7.5V
Current - peak pulse (10/1000μs)104.9A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

Transient protection for a 7.5V rail

The SMCJ7.5E3/TR13 is a unidirectional Zener TVS diode in a DO-214AB (SMC) package, rated for 1500W peak pulse power (10/1000µs waveform). Its 7.5V reverse standoff voltage makes it a direct fit for protecting 5V and 3.3V logic rails, sensor supplies, or general-purpose DC buses where the normal operating voltage stays under 7.5V. The 8.33V minimum breakdown voltage gives a clean clamping threshold before the 14.3V maximum clamp at 104.9A peak pulse current.

Clamping voltage and pulse current

At the 1500W peak pulse power level, the device clamps at 14.3V maximum while conducting 104.9A. That clamp voltage is the ceiling the protected circuit sees — a downstream 5V rail with a 6.5V absolute max input will survive this transient, but the margin is tight. For a 3.3V rail, a lower-voltage TVS in the same SMCJ family would be a better fit.

Surface-mount DO-214AB (SMC) package, unidirectional polarity.

Frequently asked questions

What is the closest pin-compatible alternative to SMCJ7.5E3/TR13?

Within the same SMCJ family, the SMCJ7.5A (unidirectional, 1500W, 7.5V standoff) is a direct functional equivalent from Microchip. The '' suffix on this part denotes lead-free / RoHS-compliant finish; the 'A' variant may have a different plating code. Confirm the exact BOM requirement before substituting.