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SMBJ43A TVS diode with 43V reverse standoff voltage and 69.4V clamping voltage. Unidirectional device in DO-214AA (SMB) surface mount package.
Mfr Part #:

SMBJ43A

Available from 1 distributors
Mfr Name: Bourns
Bourns
TVS diode with 43V reverse standoff voltage and 69.4V clamping voltage. Unidirectional device in DO-214AA (SMB) surface mount package.
✓ Total Stock: 90 pcs

SMBJ43A Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
90 pcs
On Request
90 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
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SMBJ43A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Peak Forward Surge Current
Power
Power Line Protection
Prop 65
Response Time
Supplier Device Package
Tape & Reel
Technology
Type
Unidirectional Channels
Voltage
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SMBJ43A Description

Short technical summary and product information.

The SMBJ43A from Bourns is a unidirectional transient voltage suppressor diode designed for general purpose surge and ESD protection. It features a reverse standoff voltage of 43V and a maximum clamping voltage of 69.4V, with a peak pulse current capability of 8.7A. The device can handle 600W peak pulse power (1ms) and exhibits a fast typical response time of 1 picosecond. Operating over a temperature range of -55°C to 150°C, it is housed in a DO-214AA (SMB) surface mount package, suitable for automated assembly. Typical applications include portable electronics, computing, and video equipment where protection against voltage transients is required.

SMBJ43A Quick Information

Product Type: TVS Diode
Series: SMBJ
Canonical Name: TVS Diode SMBJ43A Unidirectional 43V Standoff
Subcategory: Unidirectional TVS

SMBJ43A Compliance

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

SMBJ43A Features

  • Unidirectional TVS diode for surge protection.
  • Reverse standoff voltage of 43V.
  • Maximum clamping voltage of 69.4V.
  • Peak pulse power dissipation of 600W.
  • Fast response time less than 1 picosecond.

SMBJ43A Applications

  • Ideal for general purpose transient voltage suppression.
  • Used in portable electronics and computing equipment.
  • Applicable for IEC 61000-4-2 ESD protection.
  • Suitable for surface mount designs.

SMBJ43A FAQs

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

43 V.

What is the clamping voltage?

Maximum 69.4 V.

What is the peak pulse current?

Maximum 8.7 A.

What package is it available in?

DO-214AA (SMB) surface mount.

What is the response time?

Typical 1 ps for unidirectional.

What is the operating temperature range?

-55°C to 150°C.

Is this TVS diode unidirectional or bidirectional?

Unidirectional.

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