Overview
The SM15T27CAY is a transient voltage suppressor (TVS) designed by STMicroelectronics for automotive applications. This component is part of the SM15TY series, which is engineered to protect sensitive automotive circuits against surges defined in ISO 7637-2 and electrostatic discharges according to ISO 10605. The SM15T27CAY features a peak pulse power dissipation of 1500 W and is packaged in an SMC (Surface Mount Component) package, making it suitable for high-end circuits requiring low leakage current and high junction temperature stability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power Dissipation (10/1000 µs) | 1500 | W |
| Peak Pulse Voltage (ISO10605, Contact Discharge) | 30 | kV |
| Peak Pulse Voltage (ISO10605, Air Discharge) | 30 | kV |
| Storage Temperature Range | -65 to +150 | °C |
| Operating Junction Temperature Range | -55 to +150 | °C |
| Maximum Lead Temperature for Soldering (10 s) | 260 | °C |
| Breakdown Voltage (VBR) at 25°C | 23.1 | V |
| Clamping Voltage (VCL) at 25°C | Typically around 25-30 V for 10/1000 µs pulse | V |
Key Features
- High Peak Pulse Power Dissipation: The SM15T27CAY can handle up to 1500 W of peak pulse power, making it robust against transient surges.
- Planar Technology: This technology ensures low leakage current and high junction temperature stability, providing long-term reliability and stability in high-end circuits.
- Compliance with Automotive Standards: Designed to meet ISO 7637-2 and ISO 10605 standards, ensuring protection against surges and electrostatic discharges in automotive environments.
- SMC Package: The component is packaged in an SMC package, which is suitable for surface mount applications and meets various environmental compliance levels through ECOPACK specifications.
Applications
The SM15T27CAY is primarily used in automotive systems to protect sensitive electronic circuits from transient voltage surges and electrostatic discharges. Specific applications include:
- Automotive electronic control units (ECUs)
- Infotainment systems
- Safety and security systems (e.g., airbag controllers, anti-lock braking systems)
- Power management and battery protection circuits
Q & A
- What is the peak pulse power dissipation of the SM15T27CAY?
The peak pulse power dissipation of the SM15T27CAY is 1500 W for a 10/1000 µs pulse.
- What standards does the SM15T27CAY comply with?
The SM15T27CAY complies with ISO 7637-2 for surges and ISO 10605 for electrostatic discharges.
- What is the breakdown voltage (VBR) of the SM15T27CAY at 25°C?
The breakdown voltage (VBR) of the SM15T27CAY at 25°C is approximately 23.1 V.
- What is the clamping voltage (VCL) of the SM15T27CAY?
The clamping voltage (VCL) of the SM15T27CAY is typically around 25-30 V for a 10/1000 µs pulse.
- What is the operating junction temperature range of the SM15T27CAY?
The operating junction temperature range of the SM15T27CAY is -55 to +150°C.
- What package type is the SM15T27CAY available in?
The SM15T27CAY is available in an SMC (Surface Mount Component) package.
- What are the key benefits of the Planar technology used in the SM15T27CAY?
The Planar technology ensures low leakage current and high junction temperature stability, providing long-term reliability and stability in high-end circuits.
- What are some common applications of the SM15T27CAY in automotive systems?
The SM15T27CAY is used in automotive electronic control units (ECUs), infotainment systems, safety and security systems, and power management and battery protection circuits.
- How does the SM15T27CAY protect against electrostatic discharges?
The SM15T27CAY protects against electrostatic discharges according to ISO 10605, with a capability of up to 30 kV for both air and contact discharges.
- What is the maximum lead temperature for soldering the SM15T27CAY?
The maximum lead temperature for soldering the SM15T27CAY is 260°C for 10 seconds.
