SM30T6.8AY The SM30T6.8AY is a 3000W unidirectional transient voltage suppression diode from STMicroelectronics, featuring a 5V reverse standoff voltage and 9.2V clamping voltage. It is housed in a surface-mount DO-214AB SMC package and is AEC-Q101 qualified for automotive applications.
Mfr Part #:

SM30T6.8AY

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The SM30T6.8AY is a 3000W unidirectional transient voltage suppression diode from STMicroelectronics, featuring a 5V reverse standoff voltage and 9.2V clamping voltage. It is housed in a surface-mount DO-214AB SMC package and is AEC-Q101 qualified for automotive applications.
Total Stock: 7,500 pcs
$ Price Range: $0.46 - $1.48

SM30T6.8AY Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
5,000 pcs
5000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,500 pcs
2500 pcs On Request 1 On Request On Request On Request On Request On Request

SM30T6.8AY 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
Tape & Reel
Type
Unidirectional Channels
Voltage
Voltage - Reverse Standoff (Typ)

SM30T6.8AY Description

Short technical summary and product information.

The SM30T6.8AY is a unidirectional Zener-type TVS diode designed for transient voltage protection. It offers a peak pulse power dissipation of 3000W (10/1000µs waveform) and can handle a peak pulse current of 327A. The reverse standoff voltage is 5V, with a maximum clamping voltage of 9.2V.

 

This device is specifically rated for automotive applications and is AEC-Q101 qualified. It provides protection against voltage transients induced by load dump and other automotive surges. The unidirectional configuration makes it suitable for DC line protection where polarity is fixed.

 

The SM30T6.8AY is supplied in a DO-214AB (SMC) surface-mount package, suitable for automated assembly. It operates over a wide temperature range of -55°C to 175°C. Power line protection is not intended; it is for signal or DC power rail protection.

SM30T6.8AY Quick Information

Product Type: TVS Diode
Series: SM30T
Canonical Name: STMicroelectronics SM30T6.8AY TVS Diode (Zener, Unidirectional, 3000W, DO-214AB SMC)
Subcategory: Unidirectional TVS Diode

SM30T6.8AY Compliance

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

SM30T6.8AY Estimated Pricing

Qty Low High
1+ $1.48 $1.48
10+ $1.14 $1.14
100+ $0.83 $0.83
500+ $0.67 $0.67
1,000+ $0.59 $0.59
2,500+ $0.56 $0.56
5,000+ $0.50 $0.50
10,000+ $0.46 $0.46

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

SM30T6.8AY Features

  • 3000W peak pulse power dissipation.
  • Unidirectional Zener TVS protection.
  • 5V reverse standoff voltage.
  • 9.2V clamping voltage.
  • Surface-mount DO-214AB package.

SM30T6.8AY Applications

  • Automotive electronic control unit protection.
  • Transient voltage suppression for 5V DC lines.
  • Load dump surge protection in vehicles.

SM30T6.8AY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SM30T6.8AY?

5V.

What is the maximum clamping voltage?

9.2V at 327A peak pulse current.

What is the peak pulse current rating?

327A (10/1000µs waveform).

What is the peak pulse power rating?

3000W (10/1000µs waveform).

What package is the SM30T6.8AY available in?

DO-214AB (SMC) surface-mount package.

Is this TVS diode suitable for automotive applications?

Yes, it is rated for automotive applications.

What is the operating temperature range?

-55°C to 175°C.

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