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KYOCERA AVX SMCJ140A — Circuit Protection

SMCJ140A TVS Diode – 140V Standoff, 1500W, DO-214AB

MPNSMCJ140A
Active

KYOCERA AVX SMCJ140A, Zener TVS diode, 140V reverse standoff, 1500W peak pulse power (10/1000µs), unidirectional, DO-214AB (SMC) package, -55°C to 150°C junction temperature.

$0.7300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SMCJ140A specifications
ParameterValue
TypeZener
MountingSurface Mount
Voltage - breakdown155V
Voltage - clamping (Max) @ ipp227V
Voltage - reverse standoff140V
Current - peak pulse (10/1000μs)6.6A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

140V standoff, 1500W pulse — TVS for DC rail protection

Its 140V reverse standoff voltage means it will not conduct at the nominal bus voltage up to that level, so it sits across a 140V DC rail without leakage. When a surge exceeds the 155V minimum breakdown voltage, the device clamps at a maximum of 227V while shunting up to 6.6A of peak pulse current under the standard 10/1000µs waveform.

Peak pulse power and thermal range

Rated at 1500W peak pulse power, this part handles substantial transient energy — typical for protecting 120VAC rectified DC buses or 140V telecom supplies. The junction temperature range spans -55°C to 150°C, which covers outdoor telecom cabinets, industrial motor drives, and under-hood automotive modules where ambient heat is a factor.

Active production — sourcing and lifecycle

It is available in Tape & Reel and Cut Tape options for the DO-214AB package.

Frequently asked questions

What is the reverse standoff voltage of SMCJ140A?

Determines if the part provides adequate protection for the specific voltage rail.

Is SMCJ140A in stock?

Critical for immediate procurement to avoid project delays.

What is the price of SMCJ140A?

Essential for budget planning and cost comparison.

Is SMCJ140A a direct replacement for SMCJ130A?

Ensures compatibility when replacing a failed part without redesign.

Is SMCJ140A still in production?

Confirms long-term availability for product lifecycle management.

Where can I buy SMCJ140A?

Necessary action to place an order and fulfill BOM requirements.