SMBJ170A The SMBJ170A from Littelfuse is a 600W surface-mount unidirectional TVS diode. It features a 170V reverse standoff voltage, 275V clamping voltage, and 2.2A peak pulse current capability.
Mfr Part #:

SMBJ170A

Available from 3 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The SMBJ170A from Littelfuse is a 600W surface-mount unidirectional TVS diode. It features a 170V reverse standoff voltage, 275V clamping voltage, and 2.2A peak pulse current capability.
Total Stock: 13,767 pcs

SMBJ170A Available from 3 distributors

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SMBJ170A Specifications Quick View

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

SMBJ170A Description

Short technical summary and product information.

The SMBJ170A is a 600W transient voltage suppression (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient events. It is part of the SMBJ series from Littelfuse and offers a reverse standoff voltage of 170V and a clamping voltage of 275V at a peak pulse current of 2.2A (10/1000μs waveform). The device is unidirectional with a single channel and is intended for general-purpose protection applications.

 

Key electrical characteristics include a peak pulse power dissipation of 600W under a 10/1000μs test waveform, a typical leakage current of less than 1μA for breakdown voltages above 12V, and fast response time typically less than 1.0ps from 0V to minimum breakdown voltage. The operating junction temperature range is -65°C to 150°C.

 

The SMBJ170A is housed in a surface-mount DO-214AA (SMB) package, making it suitable for automated assembly and space-constrained designs. The package features matte tin lead-free plating and meets MSL level 1 per J-STD-020. The device is halogen free, RoHS compliant, and has UL recognition for flammability classification V-0.

SMBJ170A Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: SMBJ170A TVS Diode, 600W, Unidirectional, DO-214AA (SMB)
Subcategory: TVS Diodes

SMBJ170A Compliance

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

SMBJ170A Features

  • 600W peak pulse power dissipation.
  • 170V reverse standoff voltage.
  • 275V clamping voltage at 2.2A.
  • Unidirectional with single channel.
  • Surface-mount DO-214AA (SMB) package.

SMBJ170A Applications

  • Protects I/O interfaces from voltage transients.
  • Ideal for VCC bus protection in telecom.
  • Suitable for industrial and consumer electronics.
  • Provides ESD protection per IEC 61000-4-2.

SMBJ170A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ170A?

The reverse standoff voltage (Vrwm) is 170 V.

What is the clamping voltage of the SMBJ170A?

The clamping voltage is 275 V at the rated peak pulse current of 2.2 A.

What is the peak pulse current rating of the SMBJ170A?

The peak pulse current is 2.2 A for a 10/1000 μs waveform.

What is the package type of the SMBJ170A?

The device comes in a surface-mount DO-214AA (SMB) package.

What is the peak pulse power rating of the SMBJ170A?

The peak pulse power is 600 W for a 10/1000 μs waveform.

What is the operating temperature range of the SMBJ170A?

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

Is the SMBJ170A unidirectional or bidirectional?

It is a unidirectional TVS diode with one channel.

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