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STMICROELECTRONICS SM4T15AY Automotive Surge Suppressor

The SM4TY series offers a robust surge suppression solution for automotive circuits, rated at 400 W peak pulse power. Designed with planar technology, it ensures low leakage current and high reliability, suitable for high-end automotive electronics. Packaged in JEDEC SMA format, it features a stand-off voltage range from 5 V to 70 V, unidirectional and bidirectional options, and complies with UL 94, VO flammability standards. Qualified under AEC-Q101, it provides protection against electrostatic discharges and transient surges per ISO 10605 and ISO 7637-2 standards, making it ideal for sensitive automotive electronic systems.

Authorized Distributors
Source:Newark
Part No:SM4T15AY
Stock:2111
Inv Date:06-11-2026
Price: Unit price: $0.711
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Source:DigiKey
Part No:SM4T15AY
Stock:90
Inv Date:06-11-2026
Price: Unit price: $1.01
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Part No:SM4T15AY
Stock:1941
Inv Date:06-12-2026
Price: Unit price: $0.97
Buy/RFQ:
Part No:SM4T15AY
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.2
Buy/RFQ:

STMICROELECTRONICS SM4T15AY Automotive Surge Suppressor Specifications:

  • Peak pulse power: 400 W (10/1000 ps), 2.3 kW (8/20 us)
  • Stand-off voltage range: 5 V to 70 V
  • Operating junction temperature: -55°C to +150°C
  • Storage temperature: -65°C to +150°C
  • Maximum lead temperature during soldering: 260°C for 10s
  • Packaged in JEDEC SMA footprint, epoxy UL 94 VO rated
  • Unidirectional and bidirectional types available
  • Certified AEC-Q101, ISO 10605, ISO 7637-2 compliant
  • Peak pulse current: 30 A
  • Peak pulse voltage: 30 kV contact, 80 kV air discharge

Buy the STMicroelectronics Series SM4TY Automotive Surge Suppressor: SM4T15AY

Secure your automotive electronics with the robust STMicroelectronics SM4T15AY surge suppressor. Designed in a JEDEC SMA package, it offers reliable protection against transients up to 400 W peak pulse power. Suitable for sensitive circuits, the device features low leakage current, high junction temperature tolerance, and complies with industry standards. Whether unidirectional or bidirectional, this component ensures stability and safety in demanding automotive environments. Purchase online today to safeguard your automotive electronic systems with confidence, benefiting from fast delivery and trusted quality.

Get STMicroelectronics SM4T15AY today—built for automotive surge protection and high durability.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS SM4T15AY?

You can click on the BUY or RFQ button to purchase SM4T15AY from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part SM4T15AY?

You can download the SM4T15AY datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of SM4T15AY?

STMICROELECTRONICS

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