SMBJ33A SMBJ33A is a 600W unidirectional TVS diode from Littelfuse with a standoff voltage of 33V and breakdown voltage of 53.3V. It is housed in a surface-mount DO-214AA (SMB) package.
Mfr Part #:

SMBJ33A

Available from 8 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SMBJ33A is a 600W unidirectional TVS diode from Littelfuse with a standoff voltage of 33V and breakdown voltage of 53.3V. It is housed in a surface-mount DO-214AA (SMB) package.
Total Stock: 10,877 pcs

SMBJ33A Available from 8 distributors

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SMBJ33A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Prop 65
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SMBJ33A Description

Short technical summary and product information.

The SMBJ33A is a 600W unidirectional transient voltage suppressor (TVS) diode designed to protect sensitive electronics from voltage transients and surges. It features a Zener breakdown technology with a nominal breakdown voltage of 53.3V and a peak pulse current rating of 11.3A (10/1000µs waveform). The device is not intended for power line protection and is optimized for general-purpose circuit protection applications.

 

This TVS diode is housed in a compact DO-214AA (SMB) surface-mount package, making it suitable for automated assembly processes. It operates over a junction temperature range of -65°C to 150°C, providing robust performance in demanding environments. The unidirectional polarity ensures precise clamping for positive-going transients.

 

Typical applications include protection of I/O interfaces, data lines, and power supply rails in consumer, industrial, and telecommunications equipment. The fast response time (sub-nanosecond) makes it effective for ESD and surge protection per IEC standards.

SMBJ33A Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: SMBJ33A Littelfuse 600W Unidirectional TVS Diode, 33V Standoff, DO-214AA
Subcategory: Unidirectional TVS Diode

SMBJ33A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: Non-Compliant

SMBJ33A Features

  • 600W peak pulse power dissipation.
  • Unidirectional Zener TVS protection.
  • 53.3V nominal breakdown voltage.
  • Surface-mount DO-214AA (SMB) package.
  • Wide operating temperature range -65°C to 150°C.

SMBJ33A Applications

  • Protects I/O interfaces from voltage transients.
  • Suitable for ESD and surge protection circuits.
  • Used in consumer electronics power supply rails.
  • Ideal for telecommunications equipment protection.
  • General-purpose circuit protection in industrial designs.

SMBJ33A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the peak pulse power rating of the SMBJ33A?

The SMBJ33A has a peak pulse power dissipation of 600W (10/1000µs waveform).

What is the breakdown voltage of the SMBJ33A?

The nominal breakdown voltage is 53.3V.

What package is the SMBJ33A available in?

The SMBJ33A is offered in a DO-214AA (SMB) surface-mount package.

What is the peak pulse current rating of the SMBJ33A?

The peak pulse current is 11.3A (10/1000µs waveform).

Is the SMBJ33A unidirectional or bidirectional?

The SMBJ33A is a unidirectional TVS diode (1 channel).

What is the operating temperature range of the SMBJ33A?

The operating junction temperature range is -65°C to 150°C.

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