SMA4F70AY The STMicroelectronics SMA4F70AY is a TVS Diode designed for automotive applications. It offers a 70V standoff voltage and 3.5A peak pulse current.
Mfr Part #:

SMA4F70AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics SMA4F70AY is a TVS Diode designed for automotive applications. It offers a 70V standoff voltage and 3.5A peak pulse current.
Total Stock: 10,000 pcs
$ Price Range: $0.99

SMA4F70AY Available from 1 distributor

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SMA4F70AY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Breakdown Voltage
Current
Lead Style
Mounting Type
Operating Temperature
Power
Power Line Protection
Supplier Device Package
Supplier Package
Type
Unidirectional Channels
Voltage

SMA4F70AY Description

Short technical summary and product information.

The STMicroelectronics SMA4F70AY is a Transient Voltage Suppressor (TVS) diode designed for robust protection in automotive applications. This device features a standoff voltage of 70V and a breakdown voltage of 113V, capable of handling a peak pulse current of 3.5A.

 

With a power rating of 400W, the SMA4F70AY provides effective protection against voltage transients. It operates within a wide temperature range of -55°C to 175°C (TJ), ensuring reliability in demanding environments. The diode is configured with a single unidirectional channel.

 

Packaged in a surface mount DO-221AC, SMA Flat Leads (SMAflat) package, this component is suitable for automated assembly processes. Its design is optimized for applications requiring protection against voltage surges, particularly within the automotive sector.

SMA4F70AY Quick Information

Product Type: TVS Diode
Canonical Name: STMicroelectronics SMA4F70AY TVS Diode
Subcategory: TVS - Diodes

SMA4F70AY Compliance

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

SMA4F70AY Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

SMA4F70AY Features

  • 70V standoff voltage for protection.
  • 113V breakdown voltage capability.
  • 3.5A peak pulse current handling.
  • Automotive application suitability.
  • Surface mount SMAflat package.

SMA4F70AY Applications

  • Protects automotive electronic systems.
  • Suppresses transient voltage spikes.
  • Used in high-reliability circuits.
  • Suitable for compact designs.

SMA4F70AY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the standoff voltage of the SMA4F70AY?

The standoff voltage is 70V.

What is the breakdown voltage of the SMA4F70AY?

The breakdown voltage is 113V.

What is the peak pulse current for the SMA4F70AY?

The peak pulse current is 3.5A.

What is the power rating of the SMA4F70AY?

The power rating is 400W.

What is the operating temperature range for this TVS diode?

The operating temperature range is -55°C to 175°C (TJ).

What type of package is the SMA4F70AY in?

It is in a DO-221AC, SMA Flat Leads (SMAflat) package.

How is the SMA4F70AY mounted?

It is a surface mount device.

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