SM15T18A SM15T18A is a 1500W unidirectional TVS diode from STMicroelectronics. It features a 15.3V reverse standoff voltage and 32.5V clamping voltage in a surface-mount SMC package.
Mfr Part #:

SM15T18A

Available from 4 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SM15T18A is a 1500W unidirectional TVS diode from STMicroelectronics. It features a 15.3V reverse standoff voltage and 32.5V clamping voltage in a surface-mount SMC package.
Total Stock: 57,371 pcs
$ Price Range: $0.32 - $1.33

SM15T18A Available from 4 distributors

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Non-Authorised

SM15T18A 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
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
Voltage - Clamping (Max) @ Ipp

SM15T18A Description

Short technical summary and product information.

The SM15T18A is a unidirectional TVS (transient voltage suppression) diode manufactured by STMicroelectronics. It is designed to protect sensitive electronic circuits from voltage transients induced by lightning, ESD, and other surge events. The device offers a reverse standoff voltage of 15.3V and a maximum clamping voltage of 32.5V at a peak pulse current of 308A (8/20µs waveform). With a peak pulse power rating of 1500W, it can handle high-energy transients. The SM15T18A is a single-channel unidirectional device, making it suitable for applications where only one polarity protection is needed. It is not intended for power line protection, as indicated by the 'No' value for power line protection. The operating temperature range is -55°C to 150°C, allowing use in harsh environments. The device is housed in a DO-214AB (SMC) surface-mount package, which is compact and suitable for automated assembly. It is classified as a general-purpose TVS diode, suitable for a wide range of electronic equipment requiring transient voltage protection.

SM15T18A Quick Information

Product Type: TVS Diode
Canonical Name: SM15T18A Unidirectional TVS Diode
Subcategory: Unidirectional TVS Diode

SM15T18A Compliance

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

SM15T18A Estimated Pricing

Qty Low High
1+ $1.33 $1.33
10+ $0.85 $0.85
100+ $0.61 $0.61
500+ $0.48 $0.48
1,000+ $0.44 $0.44
2,500+ $0.37 $0.37
5,000+ $0.35 $0.35
10,000+ $0.33 $0.33
25,000+ $0.32 $0.32

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

SM15T18A Features

  • 1500W peak pulse power dissipation.
  • 15.3V reverse standoff voltage.
  • 32.5V clamping voltage.
  • Surface mount SMC package.
  • Unidirectional TVS protection.

SM15T18A Applications

  • Transient voltage suppression for electronic circuits.
  • General purpose overvoltage protection.

SM15T18A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of SM15T18A?

The reverse standoff voltage is 15.3V.

What is the clamping voltage of SM15T18A?

The maximum clamping voltage is 32.5V at 308A peak pulse current.

What is the peak pulse current rating?

The peak pulse current is 308A (8/20µs waveform).

What is the peak pulse power rating?

The peak pulse power is 1500W.

What package does SM15T18A come in?

It is available in a DO-214AB (SMC) surface-mount package.

What is the operating temperature range?

The operating temperature range is -55°C to 150°C.

Is SM15T18A unidirectional or bidirectional?

It is a unidirectional TVS diode with 1 channel.

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