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SMCJ40A SMCJ40A is a 1500W unidirectional TVS diode from Littelfuse with 40V reverse standoff voltage and 64.5V clamping voltage. It comes in a surface mount DO-214AB (SMC) package.
Mfr Part #:

SMCJ40A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SMCJ40A is a 1500W unidirectional TVS diode from Littelfuse with 40V reverse standoff voltage and 64.5V clamping voltage. It comes in a surface mount DO-214AB (SMC) package.
✓ Total Stock: 120 pcs

SMCJ40A Available from 1 distributor

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✓ Non-Authorised
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Bristol Electronics ✓
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120 pcs
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120 pcs On Request 1 On Request On Request On Request On Request On Request
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SMCJ40A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Forward Voltage
Halogen Free
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Line Protection
Response Time
Storage Temperature
Supplier Device Package
Technology
Termination Style
Type
Unidirectional Channels
Voltage
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SMCJ40A Description

Short technical summary and product information.

The SMCJ40A is a 1500W peak pulse power unidirectional TVS diode from Littelfuse, designed to protect sensitive electronic equipment from voltage transients. It features a reverse standoff voltage of 40V and a clamping voltage of 64.5V at a peak pulse current of 23.3A. The device utilizes Zener technology and offers fast response time of less than 1.0 ps.

 

This TVS diode is suitable for general purpose applications including I/O interfaces, VCC bus, and other vulnerable circuits in telecom, computer, industrial, and consumer electronics. It provides ESD protection up to 30kV (air and contact) per IEC 61000-4-2 and meets MSL level 1 requirements.

 

The SMCJ40A is housed in a surface mount DO-214AB (SMC) package with SMD termination. It operates over a temperature range of -55°C to 150°C and has a thermal resistance junction to ambient of 75°C/W. The device is RoHS compliant, halogen free, and Pb-free.

SMCJ40A Quick Information

Product Type: TVS Diode
Series: SMCJ
Canonical Name: Littelfuse SMCJ40A TVS Diode
Subcategory: Unidirectional TVS Diode

SMCJ40A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-free

SMCJ40A Features

  • 1500W peak pulse power capability.
  • 40V reverse standoff voltage.
  • 64.5V clamping voltage at 23.3A.
  • Fast response time less than 1.0 ps.
  • Surface mount DO-214AB package.

SMCJ40A Applications

  • Protects I/O interfaces and VCC bus.
  • Used in telecom, computer, and industrial electronics.
  • Ideal for ESD protection per IEC 61000-4-2.
  • Suitable for lightning-induced transient protection.

SMCJ40A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMCJ40A?

40V.

What is the clamping voltage of the SMCJ40A?

64.5V at 23.3A peak pulse current.

What is the peak pulse current rating?

23.3A.

What package is the SMCJ40A available in?

DO-214AB (SMC) surface mount package.

What is the response time of the SMCJ40A?

Less than 1.0 ps.

What is the ESD rating of the SMCJ40A?

30kV air and contact discharge per IEC 61000-4-2.

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