SMBJ78A Bourns SMBJ78A is a 600W unidirectional TVS diode with 78V reverse standoff voltage and 126V clamping voltage in a surface mount SMB package.
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SMBJ78A

Available from 1 distributors
Mfr Name: Bourns
Bourns
Bourns SMBJ78A is a 600W unidirectional TVS diode with 78V reverse standoff voltage and 126V clamping voltage in a surface mount SMB package.
Total Stock: 120 pcs

SMBJ78A Available from 1 distributor

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SMBJ78A 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
Storage Temperature
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
Voltage - Breakdown (Min)
Voltage - Reverse Standoff (Typ)

SMBJ78A Description

Short technical summary and product information.

The Bourns SMBJ78A is a unidirectional transient voltage suppressor diode designed for general purpose surge and ESD protection. It features a reverse standoff voltage of 78V, a minimum breakdown voltage of 86.7V, and a maximum clamping voltage of 126V at a peak pulse current of 4.8A. The device can handle 600W of peak pulse power (10/1000µs waveform).

 

This TVS diode is housed in a compact DO-214AA (SMB) surface mount package, making it suitable for automated assembly. It operates over a junction temperature range of -55°C to +150°C. The SMBJ series from Bourns is recognized for surge protection in portable communications, computing, and video equipment.

 

The SMBJ78A is RoHS compliant and REACH unaffected. It is not intended for power line protection and is designed for general purpose circuit protection applications where fast response to transient overvoltage events is required.

SMBJ78A Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: Bourns SMBJ78A TVS Diode
Subcategory: TVS Diodes

SMBJ78A Compliance

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

SMBJ78A Features

  • 600W peak pulse power dissipation.
  • 78V reverse standoff voltage.
  • 126V clamping voltage at 4.8A.
  • Surface mount SMB package.
  • Unidirectional protection channel.

SMBJ78A Applications

  • Used in portable electronics for surge protection.
  • Suitable for computing and video equipment.
  • Protects against IEC 61000-4-2 ESD events.
  • Ideal for general purpose circuit protection.

SMBJ78A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ78A?

The reverse standoff voltage is 78V.

What is the clamping voltage of the SMBJ78A?

The maximum clamping voltage is 126V at 4.8A peak pulse current.

What is the peak pulse power rating of the SMBJ78A?

The peak pulse power rating is 600W.

What package does the SMBJ78A come in?

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

What is the operating temperature range of the SMBJ78A?

The operating temperature range is -55°C to +150°C.

Is the SMBJ78A RoHS compliant?

The datasheet states the SMBJ series is RoHS compliant, but this is unverified.

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