SM6T33AY SM6T33AY is a 600W automotive Zener TVS diode from STMicroelectronics with 28.2V reverse standoff voltage and 59V clamping voltage in a surface-mount DO-214AA SMB package.
Mfr Part #:

SM6T33AY

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SM6T33AY is a 600W automotive Zener TVS diode from STMicroelectronics with 28.2V reverse standoff voltage and 59V clamping voltage in a surface-mount DO-214AA SMB package.
Total Stock: 22,500 pcs
$ Price Range: $0.17 - $0.86

SM6T33AY Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
20,000 pcs
20000 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

SM6T33AY 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)

SM6T33AY Description

Short technical summary and product information.

The SM6T33AY is a 600W peak pulse power Zener TVS diode designed by STMicroelectronics for automotive applications. It provides unidirectional transient voltage suppression with a reverse standoff voltage of 28.2V and a maximum clamping voltage of 59V at a peak pulse current of 68A (8/20µs waveform).

 

This device is housed in a compact DO-214AA (SMB) surface-mount package, making it suitable for automated assembly and space-constrained designs. It operates over a wide temperature range from -55°C to 150°C, ensuring reliable performance in harsh automotive environments.

 

The SM6T33AY is not intended for power line protection but is optimized for signal and data line transient suppression in automotive electronics. Its Zener clamping action provides fast response to overvoltage events, protecting sensitive downstream components.

SM6T33AY Quick Information

Product Type: TVS Diode
Series: SM6TY
Canonical Name: SM6T33AY Automotive Zener TVS Diode
Subcategory: Zener Clamping Diode

SM6T33AY Compliance

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

SM6T33AY Estimated Pricing

Qty Low High
1+ $0.86 $0.86
10+ $0.53 $0.53
100+ $0.34 $0.34
500+ $0.26 $0.26
1,000+ $0.24 $0.24
2,500+ $0.20 $0.20
5,000+ $0.19 $0.19
10,000+ $0.18 $0.18
25,000+ $0.17 $0.17

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

SM6T33AY Features

  • 600W peak pulse power dissipation.
  • 28.2V reverse standoff voltage rating.
  • 59V maximum clamping voltage at 68A.
  • Automotive-grade transient voltage suppression.
  • Surface-mount DO-214AA SMB package.

SM6T33AY Applications

  • Transient protection in automotive electronic modules.
  • Overvoltage clamping for sensor and control lines.
  • ESD protection for automotive infotainment systems.
  • Surge suppression in engine control units.

SM6T33AY FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SM6T33AY?

The reverse standoff voltage is 28.2V typical.

What is the clamping voltage of the SM6T33AY?

The maximum clamping voltage is 59V at 68A peak pulse current (8/20µs).

What is the peak pulse current rating of the SM6T33AY?

The peak pulse current is 68A for an 8/20µs waveform.

What package does the SM6T33AY come in?

It is available in a DO-214AA (SMB) surface-mount package.

Is the SM6T33AY suitable for automotive applications?

Yes, it is specifically designed for automotive applications.

What is the operating temperature range of the SM6T33AY?

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

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