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SM6T39CAY SM6T39CAY is a bidirectional TVS diode from STMicroelectronics, with 33.3V reverse standoff voltage, 69.7V clamping voltage, and 600W peak pulse power capability. It comes in a surface-mount DO-214AA (SMB) package.
Mfr Part #:

SM6T39CAY

Available from 7 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SM6T39CAY is a bidirectional TVS diode from STMicroelectronics, with 33.3V reverse standoff voltage, 69.7V clamping voltage, and 600W peak pulse power capability. It comes in a surface-mount DO-214AA (SMB) package.
✓ Total Stock: 42,716 pcs
$ Price Range: $0.41 - $1.08

SM6T39CAY Available from 7 distributors

✓ Authorised
✓ Non-Authorised
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SM6T39CAY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Bidirectional Channels
Current
Lead Style
Mounting Type
Operating Temperature
Power
Power Line Protection
Storage Temperature
Supplier Device Package
Tape & Reel
Type
Voltage
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SM6T39CAY Description

Short technical summary and product information.

The SM6T39CAY is a 600W bidirectional transient voltage suppression (TVS) diode designed for automotive applications. It features a reverse standoff voltage of 33.3V and a clamping voltage of 69.7V at 57A peak pulse current (8/20µs waveform). This device provides protection against voltage transients in sensitive electronic circuits.

 

The SM6T39CAY is housed in a surface-mount DO-214AA (SMB) package, suitable for automated assembly. It operates over a wide temperature range of -55°C to 150°C (junction temperature). The bidirectional configuration allows protection for both positive and negative transients without polarity concerns.

 

This TVS diode is ideal for automotive electronics, industrial controls, and consumer electronics requiring reliable transient protection.

SM6T39CAY Quick Information

Product Type: TVS Diode
Series: SM6TY
Canonical Name: SM6T39CAY TVS Diode, Bidirectional, 33.3V Reverse Standoff, 600W, DO-214AA (SMB)
Subcategory: Bidirectional TVS

SM6T39CAY Compliance

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

SM6T39CAY Estimated Pricing

Qty Low High
1+ $1.08 $1.08
10+ $0.95 $0.95
100+ $0.65 $0.65
500+ $0.52 $0.52
1,000+ $0.46 $0.46
2,500+ $0.44 $0.44
10,000+ $0.41 $0.41

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

SM6T39CAY Features

  • 600W peak pulse power dissipation capability.
  • Bidirectional protection for AC and DC circuits.
  • 33.3V reverse standoff voltage rating.
  • Surface-mount DO-214AA (SMB) package.
  • Automotive grade application support.

SM6T39CAY Applications

  • Protect automotive electronics from voltage transients.
  • Suitable for industrial control system surge protection.
  • Use in consumer electronics power supply circuits.
  • Ideal for communication equipment transient suppression.

SM6T39CAY FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of SM6T39CAY?

33.3V

What is the clamping voltage of SM6T39CAY?

69.7V

What is the peak pulse current rating of SM6T39CAY?

57A at 8/20µs

What is the peak pulse power rating of SM6T39CAY?

600W

What package is the SM6T39CAY available in?

DO-214AA (SMB) surface-mount

Is the SM6T39CAY bidirectional?

Yes, it has 1 bidirectional channel.

What is the operating temperature range of SM6T39CAY?

-55°C to 150°C (junction)

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