SMAJ43A TVS Diode designed for protection against voltage transients. Features 400W peak pulse power, 69.4V clamping voltage, and unidirectional configuration in DO-214AC package.
Mfr Part #:

SMAJ43A

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
TVS Diode designed for protection against voltage transients. Features 400W peak pulse power, 69.4V clamping voltage, and unidirectional configuration in DO-214AC package.
Total Stock: 15,008 pcs
$ Price Range: $0.06 - $0.48

SMAJ43A Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
15,000 pcs
15000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
8 pcs
8 pcs On Request 1 On Request On Request On Request On Request On Request

SMAJ43A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Current
Halogen Free
Industrial Grade
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Power
Power Line Protection
Storage Temperature
Supplier Device Package
Tape & Reel
Technology
Type
Unidirectional Channels
Voltage

SMAJ43A Description

Short technical summary and product information.

The Littelfuse SMAJ43A is a unidirectional TVS diode designed to protect sensitive electronic equipment from voltage transients. It utilizes Zener technology and offers a peak pulse power dissipation of 400W (10/1000µs waveform). The device features a clamping voltage of 69.4V at a peak pulse current of 5.8A, ensuring robust protection for downstream components.

 

This TVS diode operates over a wide temperature range of -65°C to 150°C and is available in a compact surface mount DO-214AC (SMA) package. It is RoHS3 compliant, with MSL Level 1 (unlimited) and REACH unaffected status. The typical forward surge current is 60A for an 8.3ms half sine wave.

 

Ideal for general purpose transient protection, the SMAJ43A is suitable for safeguarding I/O interfaces, VCC bus lines, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic applications. Its fast response time (typically <1ps) and low leakage current (less than 1µA for VBR min>12V) make it a reliable choice for modern electronics.

SMAJ43A Quick Information

Product Type: TVS Diode
Series: SMAJ
Canonical Name: Littelfuse SMAJ43A TVS Diode
Subcategory: TVS Diodes

SMAJ43A Compliance

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

SMAJ43A Estimated Pricing

Qty Low High
1+ $0.48 $0.48
10+ $0.30 $0.30
100+ $0.19 $0.19
500+ $0.14 $0.14
1,000+ $0.12 $0.12
2,000+ $0.11 $0.11
5,000+ $0.08 $0.08
10,000+ $0.07 $0.07
15,000+ $0.07 $0.07
25,000+ $0.07 $0.07
35,000+ $0.06 $0.06

Estimated market price range - modelled values for guidance only, not live distributor offers.

SMAJ43A Features

  • Zener technology TVS diode for transient protection.
  • 400W peak pulse power capability.
  • 69.4V clamping voltage at 5.8A.
  • Unidirectional configuration with single channel.
  • Surface mount DO-214AC package.

SMAJ43A Applications

  • Protection of I/O interfaces from voltage transients.
  • Suitable for VCC bus protection in electronics.
  • Used in telecom, computer, and industrial circuits.
  • Ideal for consumer electronic applications.

SMAJ43A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the clamping voltage of the SMAJ43A?

The clamping voltage is 69.4V.

What is the peak pulse current rating?

The peak pulse current is 5.8A.

What is the peak pulse power dissipation?

The peak pulse power is 400W.

What package does the SMAJ43A use?

It uses the DO-214AC (SMA) package.

What is the operating temperature range?

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

Is it unidirectional or bidirectional?

It is unidirectional with one channel.

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