SMA4F154AY The STMicroelectronics SMA4F154AY is a TVS Diode with a 154V standoff voltage and 246V clamping voltage. It is designed for automotive applications.
Mfr Part #:

SMA4F154AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics SMA4F154AY is a TVS Diode with a 154V standoff voltage and 246V clamping voltage. It is designed for automotive applications.
Total Stock: 10,000 pcs
$ Price Range: $0.99

SMA4F154AY Available from 1 distributor

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SMA4F154AY Specifications Quick View

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

SMA4F154AY Description

Short technical summary and product information.

The STMicroelectronics SMA4F154AY is a Transient Voltage Suppressor (TVS) diode designed for robust circuit protection. It features a standoff voltage of 154V and a clamping voltage of 246V, capable of handling a peak pulse current of 1.6A and a peak pulse power of 400W.

 

This Zener type diode is suitable for automotive applications and operates within a wide temperature range of -55°C to 175°C. It is packaged in a surface mount DO-221AC, SMA Flat Leads (SMAflat) package, offering a compact solution for space-constrained designs.

 

The device provides unidirectional protection with a single channel. Its construction and specifications make it a reliable choice for safeguarding sensitive electronic components from voltage transients.

SMA4F154AY Quick Information

Product Type: TVS Diode
Canonical Name: STMicroelectronics SMA4F154AY TVS Diode
Subcategory: TVS Diodes

SMA4F154AY Compliance

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

SMA4F154AY Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

SMA4F154AY Features

  • 154V standoff voltage
  • 246V clamping voltage
  • 1.6A peak pulse current
  • 400W peak pulse power
  • Automotive applications

SMA4F154AY Applications

  • Protects automotive ECUs from voltage spikes.
  • Used in automotive sensor modules.
  • Overvoltage protection for automotive battery lines.
  • Transient suppression in automotive infotainment systems.

SMA4F154AY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the standoff voltage of the SMA4F154AY?

The standoff voltage is 154 V.

What is the clamping voltage for the SMA4F154AY?

The clamping voltage is 246 V.

What is the peak pulse current rating?

The peak pulse current rating is 1.6 A.

What is the peak pulse power?

The peak pulse power is 400 W.

What is the operating temperature range?

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

What type of protection does this TVS diode offer?

This is a Zener type TVS diode offering unidirectional protection with 1 channel.

What package is the SMA4F154AY supplied in?

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

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