SM30T42AY SM30T42AY is a 3000W automotive Zener TVS diode from STMicroelectronics. It features a 36V reverse standoff voltage and 58.1V clamping voltage in a surface mount SMC package.
Mfr Part #:

SM30T42AY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SM30T42AY is a 3000W automotive Zener TVS diode from STMicroelectronics. It features a 36V reverse standoff voltage and 58.1V clamping voltage in a surface mount SMC package.
Total Stock: 2,500 pcs
$ Price Range: $0.43 - $1.20

SM30T42AY Available from 1 distributor

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

SM30T42AY 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 (Vrwm)
Supplier Device Package
Tape & Reel
Termination Style
Type
Unidirectional Channels
Voltage

SM30T42AY Description

Short technical summary and product information.

The SM30T42AY is a unidirectional Zener TVS diode designed for automotive applications. It provides transient voltage protection with a peak pulse power rating of 3000W (3kW). The device has a reverse standoff voltage of 36V and a clamping voltage of 58.1V at a peak pulse current of 48.4A.

 

This TVS diode is housed in a DO-214AB (SMC) surface mount package, suitable for automated assembly. It operates over a junction temperature range of -55°C to 175°C, making it robust for harsh environments. The part does not include power line protection and is intended for unidirectional protection of sensitive electronics.

 

Typical applications include automotive electronic control units, sensors, and other systems requiring reliable overvoltage protection. The SM30T42AY is RoHS3 compliant and has an MSL rating of 1 (unlimited).

SM30T42AY Quick Information

Product Type: TVS Diode
Canonical Name: SM30T42AY Automotive Zener TVS Diode, 3000W, DO-214AB (SMC)
Subcategory: Automotive Zener TVS

SM30T42AY Compliance

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

SM30T42AY Estimated Pricing

Qty Low High
1+ $1.20 $1.20
10+ $0.97 $0.97
100+ $0.76 $0.76
500+ $0.62 $0.62
1,000+ $0.53 $0.53
2,500+ $0.53 $0.53
10,000+ $0.52 $0.52
25,000+ $0.43 $0.43

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

SM30T42AY Features

  • 3000W peak pulse power dissipation.
  • 36V reverse standoff voltage rating.
  • 58.1V clamping voltage at 48.4A.
  • Surface mount SMC package (DO-214AB).
  • Automotive grade operating temperature range.

SM30T42AY Applications

  • Transient voltage protection in automotive ECUs.
  • Overvoltage clamping for automotive sensor modules.
  • Surge protection in 36V automotive power lines.

SM30T42AY FAQs

5 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SM30T42AY?

The reverse standoff voltage (VRWM) is 36V.

What is the clamping voltage of the SM30T42AY?

The clamping voltage (VC) is 58.1V.

What is the peak pulse current rating of the SM30T42AY?

The peak pulse current (IPP) is 48.4A.

What package does the SM30T42AY come in?

The SM30T42AY is available in a DO-214AB (SMC) surface mount package.

Is the SM30T42AY suitable for automotive applications?

Yes, it is specifically designed for automotive applications.

Home
Account

Categories