SM4T68CAY Automotive TVS diode from STMicroelectronics with 58V reverse standoff voltage, 121V clamping, and 400W peak pulse power in a surface-mount SMA package.
Mfr Part #:

SM4T68CAY

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
Automotive TVS diode from STMicroelectronics with 58V reverse standoff voltage, 121V clamping, and 400W peak pulse power in a surface-mount SMA package.
Total Stock: 25,000 pcs
$ Price Range: $0.34 - $1.53

SM4T68CAY Available from 1 distributor

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Non-Authorised
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25,000 pcs
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SM4T68CAY Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Bidirectional Channels
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Supplier Device Package
Tape & Reel
Type
Voltage
Voltage - Breakdown (Min)
Voltage - Reverse Standoff (Typ)

SM4T68CAY Description

Short technical summary and product information.

The SM4T68CAY is a bidirectional Zener TVS diode designed for automotive applications. It features a reverse standoff voltage of 58V and a maximum clamping voltage of 121V at the peak pulse current. The device can handle 400W of peak pulse power (10/1000µs waveform) and is rated for a peak pulse current of 19A (8/20µs waveform).

 

This TVS diode is intended for voltage transient protection in automotive electronics, where it safeguards sensitive circuits from overvoltage events. It is not designed for power line protection.

 

The component is surface-mount and comes in a DO-214AC (SMA) package, with an operating temperature range of -55°C to 150°C. It is RoHS3 compliant and REACH unaffected, though these compliance claims are unverified.

SM4T68CAY Quick Information

Product Type: TVS Diode
Canonical Name: SM4T68CAY Automotive TVS Diode, 58V Reverse Standoff, 121V Clamping, SMA
Subcategory: Automotive TVS

SM4T68CAY Compliance

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

SM4T68CAY Estimated Pricing

Qty Low High
1+ $1.53 $1.53
10+ $0.99 $0.99
100+ $0.66 $0.66
500+ $0.51 $0.51
1,000+ $0.44 $0.44
2,500+ $0.40 $0.40
5,000+ $0.40 $0.40
10,000+ $0.34 $0.34

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

SM4T68CAY Features

  • Bidirectional Zener TVS diode protection.
  • 58V reverse standoff voltage rating.
  • 121V maximum clamping voltage.
  • 400W peak pulse power capability.
  • Surface-mount SMA (DO-214AC) package.

SM4T68CAY Applications

  • Automotive electronic transient protection.
  • Voltage clamping for 58V nominal lines.
  • Overvoltage protection in vehicle modules.

SM4T68CAY FAQs

5 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SM4T68CAY?

58V

What is the maximum clamping voltage?

121V

What is the peak pulse power rating?

400W

What package does this TVS diode come in?

DO-214AC (SMA) surface-mount package

Is this device suitable for automotive applications?

Yes, it is specifically designed for automotive use.

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