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STMICROELECTRONICS SM30T12CAY Automotive Surge Protector

The automotive-grade 3000W Transil series provides effective surge suppression for sensitive circuits, meeting ISO 7637-2 and ISO 10605 standards. Its planar technology ensures reliability, low leakage current, and high junction temperature tolerance up to 175°C. Packaged in JEDEC DO-214AB SMC footprint with UL 94V-0 rated epoxy, it offers unidirectional and bidirectional options with stand-off voltages from 5V to 48V. Suitable for automotive electronic protection, it exceeds Level 4 discharge standards, ensuring durability in harsh environments.

Authorized Distributors
Source:Newark
Part No:SM30T12CAY
Stock:3180
Inv Date:06-11-2026
Price: Unit price: $2.07
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Source:DigiKey
Part No:SM30T12CAY
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.62462
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Part No:SM30T12CAY
Stock:1
Inv Date:06-12-2026
Price: Unit price: $1.96
Buy/RFQ:
Part No:SM30T12CAY
Stock:2500
Inv Date:06-11-2026
Price: Unit price: $0.495
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STMICROELECTRONICS SM30T12CAY Automotive Surge Protector Specifications:

  • Peak pulse power: 3000 W (10/1000 µs), up to 36 kW (8/20 µs)
  • Stand-off voltage: 5 V to 48 V
  • Operating junction temperature: -55°C to +175°C
  • Meet ISO 7637-2, ISO 10605 standards
  • Peak pulse current: 30 kV contact and air discharge
  • Package: JEDEC DO-214AB SMC, epoxy rated UL 94V-0
  • Solderable terminals per MIL-STD-750, Method 2026
  • AEC-Q101 qualified, RoHS compliant
  • Maximum lead temperature during soldering: 260°C for 10 seconds
  • Mechanical dimensions: Al 1.90-2.45 mm, D 5.55-6.25 mm, L 0.75-1.50 mm

Buy the STMicroelectronics Series Transil Surge Protector: SM30T12CAY

Purchase the STMicroelectronics SM30T12CAY online today to ensure your automotive electronics are protected against high voltage surges and electrostatic discharges. Designed with advanced planar technology, it offers reliable performance, low leakage current, and high junction temperature endurance up to 175°C. Packaged in a compact SMC footprint, this unidirectional/bidirectional transient suppression diode meets ISO standards, making it ideal for automotive and industrial applications demanding durability, efficiency, and safety. Order now for fast delivery and peace of mind.

Get STMicroelectronics SM30T12CAY today—built for automotive surge suppression and high reliability in sensitive electronic circuits.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS SM30T12CAY?

You can click on the BUY or RFQ button to purchase SM30T12CAY from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part SM30T12CAY?

You can download the SM30T12CAY datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of SM30T12CAY?

STMICROELECTRONICS

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