SM15T47AY The SM15T47AY is a 1500W automotive TVS diode from STMicroelectronics with a 40.2V reverse standoff voltage and 84V clamping voltage in a surface-mount SMC package.
Mfr Part #:

SM15T47AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The SM15T47AY is a 1500W automotive TVS diode from STMicroelectronics with a 40.2V reverse standoff voltage and 84V clamping voltage in a surface-mount SMC package.
Total Stock: 12,500 pcs
$ Price Range: $0.38 - $1.00

SM15T47AY Available from 1 distributor

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Non-Authorised
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12,500 pcs
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SM15T47AY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Reverse Standoff Voltage
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SM15T47AY Description

Short technical summary and product information.

The SM15T47AY is a unidirectional automotive TVS diode from STMicroelectronics designed to protect sensitive electronics from voltage transients. It features a reverse standoff voltage of 40.2V and a clamping voltage of 84V, capable of handling peak pulse currents up to 119A (8/20µs waveform) with a peak pulse power rating of 1500W.

 

This device is housed in a DO-214AB (SMC) surface-mount package, making it suitable for automated assembly processes. It is rated for an operating junction temperature range of -40°C to 150°C, ensuring reliable performance in harsh automotive environments.

 

Designed specifically for automotive applications, the SM15T47AY provides robust transient voltage suppression for electronic control units, sensors, and other vehicle electronics. Its unidirectional configuration makes it ideal for protecting DC power lines and signal lines from positive-going transients.

SM15T47AY Quick Information

Product Type: TVS Diode
Canonical Name: STMicroelectronics SM15T47AY Automotive TVS Diode
Subcategory: Automotive TVS

SM15T47AY Compliance

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

SM15T47AY Estimated Pricing

Qty Low High
1+ $1.00 $1.00
10+ $0.82 $0.82
100+ $0.59 $0.59
500+ $0.47 $0.47
1,000+ $0.46 $0.46
2,500+ $0.38 $0.38
5,000+ $0.38 $0.38

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

SM15T47AY Features

  • 1500W peak pulse power rating.
  • 40.2V reverse standoff voltage.
  • 84V clamping voltage capability.
  • Surface-mount SMC package design.
  • Automotive-grade transient protection.

SM15T47AY Applications

  • Protects automotive electronic control units.
  • Suitable for vehicle sensor circuits.
  • Used in DC power line protection.

SM15T47AY FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SM15T47AY?

The reverse standoff voltage is 40.2V.

What is the clamping voltage of the SM15T47AY?

The clamping voltage is 84V.

What is the peak pulse power rating of the SM15T47AY?

The peak pulse power rating is 1500W.

What package does the SM15T47AY come in?

It comes in a DO-214AB, SMC surface-mount package.

Is the SM15T47AY suitable for automotive applications?

Yes, it is designed for automotive applications.

What is the operating temperature range of the SM15T47AY?

The operating temperature range is -40°C to 150°C (junction temperature).

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