Manufacturer Part Number
SM4T10CAY
Manufacturer
STMicroelectronics
Introduction
The SM4T10CAY is a Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by system inductive load switching and lightning.
Product Features and Performance
Bidirectional transient voltage suppressor
Zener type TVS
Standoff voltage: 8.5V typical
Breakdown voltage: 9.4V minimum
Clamping voltage: 19.5V maximum at Ipp
Peak pulse current: 124A (8/20µs)
Peak pulse power: 400W
Operating temperature range: -55°C to 150°C (TJ)
Automotive grade component
AEC-Q101 qualified
Surface mount package: DO-214AC, SMA
Product Advantages
High surge capability to protect against high energy transient events
Bidirectional protection suitable for AC applications or where the polarity is reversible
Low incremental surge resistance, improving clamping performance
High reliability and consistency in performance, being AEC-Q101 qualified for automotive applications
Wide operating temperature range suitable for harsh environments
Key Technical Parameters
Voltage Reverse Standoff (Typ): 8.5V
Voltage Breakdown (Min): 9.4V
Voltage Clamping (Max) @ Ipp: 19.5V
Current Peak Pulse (10/1000µs): 124A (8/20µs)
Power Peak Pulse: 400W
Mounting Type: Surface Mount
Operating Temperature: -55°C ~ 150°C (TJ)
Quality and Safety Features
AEC-Q101 qualification ensures high reliability for automotive applications
Robust package design minimizing mechanical failure modes
Operates effectively across a wide temperature range, ensuring stability in varying conditions
Compatibility
Surface Mount package compatible with automated PCB assembly processes
SMA (DO-214AC) package universally recognized and easy to integrate into various circuit designs
Application Areas
Automotive electronics protection
Industrial control system protection
Power supply protection
Communication system protection
Product Lifecycle
Status: Active
No current indications of nearing discontinuation, with ongoing support for replacements or upgrades as needed
Several Key Reasons to Choose This Product
High energy absorption capability providing robust protection for sensitive components
Automotive grade reliability and safety, making it suitable for high-demand applications
AEC-Q101 qualification ensuring quality and performance
Broad compatibility and easy integration into system designs
Efficient protection performance with low clamping voltage and high surge current rating
