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STMicroelectronics 1-Element Bi-Directional TVS Diode 400W 2-Pin DO-214 SM4T47CAY
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Package | DO-214AC (SMA) |
| Height | 2.45mm |
| Length | 4.6mm |
| Model | SM4T47CAY |
| Width | 2.9mm |
| Mount Type | Surface |
| Series | SM4TxxCAY |
| Maximum Operating Temperature | 150°C |
| Package Type | DO-214 |
| Minimum Operating Temperature | -55°C |
| Pin Count | 2 |
| Number of Elements per Chip | 1 |
| Clamping Voltage VC | 84V |
| Automotive Standard | AEC-Q101 |
| Diode Configuration | Single |
| Direction Type | Bi-Directional |
| Minimum Breakdown Voltage Vbr | 44.4V |
| Maximum Reverse Stand-off Voltage Vwm | 40V |
| Peak Pulse Power Dissipation Pppm | 400W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 27A |
| Maximum Reverse Leakage Current | 1μA |
Key Features
- Single diode configuration providing bi-directional protection.
- Offers 400W peak pulse power dissipation for robust transient voltage suppression.
- Surface mount DO-214 package enhances compact PCB integration.
- Minimum breakdown voltage of 44.4V with maximum reverse stand-off voltage of 40V.
- Clamping voltage rated at 84V ensuring reliable surge control.
- Operates between temperature ranges of -55°C to 150°C.
- Maximum peak pulse current up to 27A for high surge events.
- Qualified to automotive standard AEC-Q101 for rigorous circuit protection.
Product Description
STMicroelectronics SM4T47CAY is a 1-element bi-directional Transient Voltage Suppressor (TVS) diode delivering 400 watts peak pulse power in a compact 2-pin DO-214 surface mount package. It is specifically engineered to safeguard sensitive automotive circuits from voltage surges and electrostatic discharges as defined by ISO 7637-2 and ISO 10605 standards.
This single diode configuration provides effective bi-directional transient voltage protection with a minimum breakdown voltage of 44.4 volts and a maximum reverse stand-off voltage of 40 volts, making it suitable for a broad range of electrical automotive applications. The device clamps surges at 84 volts, ensuring system resilience to transient events. It withstands maximum peak pulse currents of 27 amps and features low leakage current of 1 microampere to optimize circuit performance.
The SM4T47CAY operates reliably across automotive temperature extremes from -55°C up to 150°C. Its compact DO-214AC (SMA) package enables easy surface mounting for efficient PCB layouts. The diode meets the automotive industry’s stringent AEC-Q101 quality standard, guaranteeing durable performance in critical vehicular electronics.
This TVS Diode is ideal for use in industrial, automotive, manufacturing, and commercial electronic systems where surge protection is essential for maintaining equipment reliability and longevity.
Single diode single element bi-directional TVS configuration. Peak pulse power dissipation of 400 watts to handle high surge events. Compact DO-214 surface mount package for space-saving PCB applications. Automotive standard AEC-Q101 qualification for reliability assurance.
Wide operating temperature range from -55°C to +150°C ensures robustness. Low leakage current maximizes operational efficiency. Meets ISO 7637-2 and ISO 10605 surge and ESD protection standards. Designed specifically for automotive transient voltage suppression needs.
Physical dimensions suitable for integration into compact electronic assemblies.
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Frequently Asked Questions
The SM4T47CAY has a peak pulse power dissipation of 400 watts, allowing it to handle high surge events effectively.
The minimum breakdown voltage for the SM4T47CAY is 44.4 volts, providing reliable protection against overvoltage conditions.
This model has dimensions of 4.6mm in length, 2.9mm in width, and a height of 2.45mm, making it suitable for compact PCB designs.
The maximum reverse stand-off voltage for the SM4T47CAY is 40 volts, ensuring it operates safely within specified limits.
The clamping voltage is rated at 84 volts, which helps in controlling voltage surges effectively.
The maximum peak pulse current for the SM4T47CAY is 27 amps, allowing it to handle significant surge events.
This model operates reliably between -55°C and +150°C, making it suitable for various automotive applications.
The SM4T47CAY is designed for surface mounting, utilizing the DO-214AC (SMA) package for efficient PCB integration.
This diode is qualified to the AEC-Q101 automotive standard, ensuring it meets rigorous performance requirements for automotive applications.
The SM4T47CAY features a single diode configuration, meaning it has one element per chip.
The maximum reverse leakage current for the SM4T47CAY is 1 microampere, which helps optimize circuit performance.
This model meets the surge protection standards defined by ISO 7637-2 and ISO 10605, ensuring effective transient voltage suppression.
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