Overview
The SM15T30AY is a high-performance 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 SM15T30AY utilizes Planar technology, ensuring low leakage current and high junction temperature capabilities, which are crucial for long-term reliability and stability in high-end circuits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power Dissipation (10/1000 µs) | 1500 | W |
| Peak Pulse Power Dissipation (8/20 µs) | 10 kW | W |
| Stand-off Voltage | 25.6 | V |
| Operating Junction Temperature Range | -55 to +150 | °C |
| Leakage Current at 25 °C | 0.2 | µA |
| Leakage Current at 85 °C | 1 | µA |
| Maximum Lead Temperature for Soldering | 260 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Package Type | SMC |
Key Features
- AEC-Q101 qualified, ensuring high reliability for automotive applications.
- High peak pulse power dissipation: up to 1500 W (10/1000 µs) and 10 kW (8/20 µs).
- Low leakage current: 0.2 µA at 25 °C and 1 µA at 85 °C.
- Operating junction temperature up to 150 °C.
- Compliance with various standards: UL94 V0, J-STD-020 MSL level 1, J-STD-002, JESD 22-B102 E3, MIL-STD-750 method 2026, and IPC7531 footprint.
- High electrostatic discharge (ESD) protection: exceeds level 4 of IEC 61000-4-4 and ISO 10605 (30 kV air and contact discharge).
- Lead finishing: matte tin plating.
- Unidirectional and bidirectional types available.
Applications
The SM15T30AY is designed for use in automotive electronics to protect against electrical surges and electrostatic discharges. It is particularly suited for applications requiring high reliability and stability, such as:
- Automotive control units and sensors.
- Infotainment systems.
- Powertrain and chassis control systems.
- Advanced driver-assistance systems (ADAS).
Q & A
- What is the peak pulse power dissipation of the SM15T30AY?
The peak pulse power dissipation is up to 1500 W (10/1000 µs) and 10 kW (8/20 µs).
- What are the operating junction temperature limits of the SM15T30AY?
The operating junction temperature range is -55 to +150 °C.
- Is the SM15T30AY compliant with automotive standards?
Yes, it is AEC-Q101 qualified and complies with ISO 7637-2 and ISO 10605 standards.
- What is the leakage current of the SM15T30AY at 25 °C and 85 °C?
The leakage current is 0.2 µA at 25 °C and 1 µA at 85 °C.
- What type of package does the SM15T30AY come in?
The SM15T30AY comes in an SMC package.
- Does the SM15T30AY offer ESD protection?
Yes, it exceeds level 4 of IEC 61000-4-4 and ISO 10605 (30 kV air and contact discharge).
- What is the maximum lead temperature for soldering the SM15T30AY?
The maximum lead temperature for soldering is 260 °C.
- Is the SM15T30AY suitable for high-end automotive circuits?
Yes, it is designed for high-end circuits requiring low leakage current and high junction temperature capabilities.
- What are some typical applications of the SM15T30AY in automotive electronics?
Typical applications include automotive control units, infotainment systems, powertrain and chassis control systems, and ADAS.
- Does the SM15T30AY have any specific soldering profile recommendations?
Yes, it follows the ST ECOPACK recommended soldering reflow profile for PCB mounting, as outlined in the datasheet.
