SM4T15AY The SM4T15AY is a 400W unidirectional TVS diode from STMicroelectronics with a 13V reverse standoff voltage and 27.2V clamping voltage. It is housed in a surface-mount DO-214AC (SMA) package.
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SM4T15AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The SM4T15AY is a 400W unidirectional TVS diode from STMicroelectronics with a 13V reverse standoff voltage and 27.2V clamping voltage. It is housed in a surface-mount DO-214AC (SMA) package.
Total Stock: 10,000 pcs
$ Price Range: $0.19 - $0.97

SM4T15AY Available from 1 distributor

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Non-Authorised
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10000 pcs On Request 1 On Request On Request On Request On Request On Request

SM4T15AY Specifications Quick View

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

SM4T15AY Description

Short technical summary and product information.

The SM4T15AY is a unidirectional TVS (Transient Voltage Suppression) diode from STMicroelectronics, designed to protect sensitive electronic circuits from voltage transients. It features a reverse standoff voltage of 13V and a maximum clamping voltage of 27.2V. The device can handle peak pulse currents up to 85A (8/20 µs waveform) and offers a peak pulse power rating of 400W.

 

This TVS diode utilizes Zener technology and is optimized for automotive applications, operating over a wide temperature range from -55°C to 150°C. It is a single-channel device with no power line protection, making it suitable for signal line protection in automotive electronics.

 

The SM4T15AY is supplied in a surface-mount DO-214AC (SMA) package, which is compact and suitable for automated assembly. The package is RoHS3 compliant and has an MSL rating of 1 (unlimited).

SM4T15AY Quick Information

Product Type: TVS Diode
Series: SM4T
Canonical Name: STMicroelectronics SM4T15AY TVS Diode, 13V Reverse Standoff, 27.2V Clamping, DO-214AC (SMA)
Subcategory: Unidirectional TVS Diode

SM4T15AY Compliance

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

SM4T15AY Estimated Pricing

Qty Low High
1+ $0.97 $0.97
10+ $0.60 $0.60
100+ $0.39 $0.39
500+ $0.30 $0.30
1,000+ $0.27 $0.27
2,500+ $0.23 $0.23
5,000+ $0.20 $0.20
10,000+ $0.19 $0.19
25,000+ $0.19 $0.19

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

SM4T15AY Features

  • 13V reverse standoff voltage rating.
  • 27.2V maximum clamping voltage.
  • 400W peak pulse power capability.
  • 85A peak pulse current (8/20µs).
  • Surface mount DO-214AC SMA package.

SM4T15AY Applications

  • Used in automotive electronic systems.
  • Protects sensitive circuits from voltage transients.
  • Suitable for high-reliability applications.

SM4T15AY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SM4T15AY?

13V.

What is the clamping voltage of the SM4T15AY?

27.2V maximum.

What is the peak pulse current rating?

85A (8/20 µs waveform).

What package does the SM4T15AY come in?

DO-214AC (SMA) surface-mount package.

What is the operating temperature range?

-55°C to 150°C.

Is the SM4T15AY RoHS compliant?

RoHS3 compliant (unverified).

What applications is this TVS diode designed for?

Automotive applications.

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