SMCJ30A SMCJ30A is a 1500W surface mount TVS diode with 30V reverse standoff voltage and 48.4V clamping voltage, designed for overvoltage protection.
Mfr Part #:

SMCJ30A

Available from 4 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SMCJ30A is a 1500W surface mount TVS diode with 30V reverse standoff voltage and 48.4V clamping voltage, designed for overvoltage protection.
Total Stock: 18,832 pcs

SMCJ30A Available from 4 distributors

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Non-Authorised

SMCJ30A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Breakdown Voltage (Minimum/Maximum @ @ 1 mA)
Current
Halogen Free
Maximum Instantaneous Forward Voltage @ 100A
Mounting Type
Operating Temperature
Peak Forward Surge Current (8.3ms)
Peak Pulse Power Dissipation (10/1000µs)
Power
Power Dissipation (TL=50°C)
Power Line Protection
Response Time
Reverse Leakage Current (Max @ VRWM)
Reverse Standoff Voltage
Storage Temperature Range
Supplier Device Package
Type
Typical Thermal Resistance Junction to Ambient
Typical Thermal Resistance Junction to Lead
Unidirectional Channels
Voltage

SMCJ30A Description

Short technical summary and product information.

The SMCJ30A is a 1500W transient voltage suppression (TVS) diode from Littelfuse's SMCJ series, designed to protect sensitive electronic equipment from voltage transients. It features a reverse standoff voltage of 30V and a maximum clamping voltage of 48.4V at 31A peak pulse current (10/1000µs waveform). The device offers a typical response time of less than 1.0ps and a low incremental surge resistance.

 

With a peak pulse power dissipation of 1500W, the SMCJ30A is suitable for I/O interface, VCC bus, and other vulnerable circuit protection in telecom, computer, industrial, and consumer applications. It is a unidirectional TVS diode with a glass passivated chip junction and operates over a temperature range of -65°C to 150°C.

 

Packaged in a surface-mount DO-214AB (SMC) package, the device is halogen-free and RoHS compliant. It meets MSL level 1 and is Pb-free with matte tin terminal finish, ensuring reliable solderability.

SMCJ30A Quick Information

Product Type: TVS Diode
Series: SMCJ
Canonical Name: SMCJ30A TVS Diode
Subcategory: Surface Mount TVS Diodes

SMCJ30A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-free E3

SMCJ30A Features

  • 1500W peak pulse power dissipation.
  • 30V reverse standoff voltage rating.
  • 48.4V clamping voltage at 31A.
  • Fast response time under 1.0ps.
  • Surface mount DO-214AB package.

SMCJ30A Applications

  • Protection for I/O interfaces and VCC bus.
  • Used in telecom and computer equipment.
  • Ideal for industrial and consumer electronics.
  • Suitable for lightning and transient voltage events.

SMCJ30A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMCJ30A?

The reverse standoff voltage is 30V.

What is the breakdown voltage range of the SMCJ30A?

The breakdown voltage is between 33.3V (minimum) and 36.8V (maximum) at 1mA.

What is the clamping voltage of the SMCJ30A?

The clamping voltage is 48.4V.

What is the peak pulse current rating of the SMCJ30A?

The peak pulse current is 31A for a 10/1000µs waveform.

What package does the SMCJ30A come in?

The SMCJ30A is available in a DO-214AB (SMC) surface mount package.

What is the response time of the SMCJ30A?

The typical response time is less than 1.0ps from 0V to breakdown voltage.

Is the SMCJ30A RoHS compliant?

Yes, the datasheet states it is halogen-free and RoHS compliant.

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