Overview
The SM30T39AY is a high-performance Transient Voltage Suppressor (TVS) designed by STMicroelectronics for automotive applications. This component is part of the SM30TY series, which is engineered to protect sensitive automotive circuits against surges and electrostatic discharges as defined in ISO 7637-2 and ISO 10605, respectively. The SM30T39AY features planar technology, ensuring low leakage current and high junction temperature tolerance, which are crucial for long-term reliability and stability in high-end circuits.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power (10/1000 μs) | 3000 | W |
| Peak Pulse Power (8/20 μs) | Up to 40 kW | kW |
| Stand-off Voltage | 33 V | V |
| Operating Junction Temperature Range | -55 to +175 | °C |
| Storage Temperature Range | -65 to +175 | °C |
| Maximum Lead Temperature for Soldering | 260 | °C |
| Leakage Current at 25 °C | 0.2 µA | µA |
| Compliance Standards | UL94 V0, J-STD-020 MSL level 1, J-STD-002, JESD 22-B102 E3, MIL-STD-750 method 2026, JESD-201 class 2 whisker test | |
| Electrostatic Discharge (ESD) Protection | Up to 30 kV (air and contact discharge) | kV |
Key Features
- AEC-Q101 Qualified: Ensures the component meets stringent automotive standards.
- High Peak Pulse Power: Capable of handling up to 3000 W (10/1000 μs) and up to 40 kW (8/20 μs).
- Low Leakage Current: Only 0.2 µA at 25 °C, minimizing power consumption.
- High Operating Junction Temperature: Can operate up to 175 °C, ensuring reliability in harsh environments.
- Compliance with Multiple Standards: Meets UL94 V0, J-STD-020, J-STD-002, and other relevant standards.
- Robust ESD Protection: Provides protection up to 30 kV for both air and contact discharges.
- Planar Technology: Enhances long-term reliability and stability in high-end circuits.
Applications
The SM30T39AY is designed for use in automotive systems, particularly in applications where protection against surges and electrostatic discharges is critical. This includes:
- Automotive electronics such as infotainment systems, navigation, and driver assistance systems.
- Power supplies and battery management systems.
- Safety-critical systems like airbag controllers and anti-lock braking systems (ABS).
- Other high-reliability automotive circuits requiring robust surge and ESD protection.
Q & A
- What is the peak pulse power rating of the SM30T39AY?
The SM30T39AY has a peak pulse power rating of 3000 W (10/1000 μs) and up to 40 kW (8/20 μs).
- What is the operating junction temperature range of the SM30T39AY?
The operating junction temperature range is -55 to +175 °C.
- Is the SM30T39AY compliant with automotive standards?
- What is the leakage current of the SM30T39AY at 25 °C?
The leakage current is 0.2 µA at 25 °C.
- What kind of ESD protection does the SM30T39AY offer?
- What package type is the SM30T39AY available in?
- What are the storage temperature limits for the SM30T39AY?
- Does the SM30T39AY meet any specific safety standards?
- What is the maximum lead temperature for soldering the SM30T39AY?
- In what types of automotive systems is the SM30T39AY typically used?
