SM8S43ATHE3/I The Vishay Dale SM8S43ATHE3/I is a surface mount TVS Diode designed for automotive applications. It offers a breakdown voltage of 43V and a clamping voltage of 69.4V.
Mfr Part #:

SM8S43ATHE3/I

Available from 1 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale SM8S43ATHE3/I is a surface mount TVS Diode designed for automotive applications. It offers a breakdown voltage of 43V and a clamping voltage of 69.4V.
Total Stock: 5,000 pcs
$ Price Range: $0.99

SM8S43ATHE3/I Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
5,000 pcs
5000 pcs On Request 1 On Request On Request 15+ On Request On Request

SM8S43ATHE3/I Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Automotive Grade
Breakdown Voltage (Minimum/Typical/Maximum @ @ 1 mA)
Current
Industrial Grade
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Peak Forward Surge Current
Peak Pulse Current (Maximum @ 10 x 1000 μs)
Peak Pulse Current (Maximum @ 10 x 10000 μs)
Power
Power Dissipation
Power Line Protection
Supplier Device Package
Supplier Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SM8S43ATHE3/I Description

Short technical summary and product information.

The Vishay Dale SM8S43ATHE3/I is a Transient Voltage Suppressor (TVS) diode designed for high-reliability applications, including automotive load dump protection. It features a junction passivation optimized design with anisotropic rectifier technology, enabling a Tj of 175°C.

 

This unidirectional TVS diode offers a working voltage (VWM) of 43V and a breakdown voltage (VBR) ranging from 11.1V to 52.8V. Its clamping voltage (VC) is 69.4V at 95.1A. The device boasts a high surge capability with a peak pulse power of 6600W (10 x 1000 μs) and 5200W (10 x 10000 μs), and a peak forward surge current (IFSM) of 700A.

 

Packaged in a DO-218AC surface mount case, the SM8S43ATHE3/I meets MSL level 1 requirements and is AEC-Q101 qualified. Its operating junction and storage temperature range is -55°C to +175°C, making it suitable for demanding environments. The low leakage current and low forward voltage drop are beneficial for sensitive electronics protection against voltage transients induced by inductive load switching and lighting.

SM8S43ATHE3/I Quick Information

Product Type: TVS Diode
Series: SM8S
Canonical Name: Vishay Dale SM8S43ATHE3/I Transient Voltage Suppressor Diode
Subcategory: TVS Diodes

SM8S43ATHE3/I Compliance

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

SM8S43ATHE3/I Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

SM8S43ATHE3/I Features

  • High surge capability for transient protection.
  • Suitable for automotive load dump protection.
  • High temperature stability at 175°C.
  • Surface mount DO-218AC package.
  • AEC-Q101 qualified for automotive use.

SM8S43ATHE3/I Applications

  • Protects sensitive automotive electronics.
  • Suppresses voltage transients from switching.
  • Ideal for lighting-induced surge protection.
  • Used in inductive load switching circuits.

SM8S43ATHE3/I FAQs

7 frequently asked questions generated from this part’s specifications.
What is the standoff voltage of the SM8S43ATHE3/I?

The typical standoff voltage (VWM) is 43V.

What are the breakdown voltage limits?

The minimum breakdown voltage is 11.1V and the maximum is 52.8V at 1mA.

What is the clamping voltage?

The maximum clamping voltage is 69.4V at a peak pulse current of 69.4A.

What is the peak pulse current rating?

The maximum peak pulse current is 95.1A for a 10/1000μs waveform, with a peak pulse power of 6600W.

What package does the SM8S43ATHE3/I come in?

It is offered in a DO-218AC surface mount package.

What is the operating temperature range?

The junction temperature range is -55°C to +175°C.

Is this TVS diode unidirectional or bidirectional?

It is a unidirectional TVS diode with one unidirectional channel.

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