Overview
The SM15T68CAY 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 SM15T68CAY features planar technology, ensuring compatibility with high-end circuits that require low leakage current and high junction temperature for long-term reliability and stability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 | W |
| Peak Pulse Power (8/20 µs) | 10 kW | W |
| Stand-off Voltage | 58.1 V | V |
| Leakage Current at 25 °C | 0.2 µA | µA |
| Leakage Current at 85 °C | 1 µA | µA |
| Operating Junction Temperature Range | -55 to +150 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Maximum Lead Temperature for Soldering | 260 | °C |
| Package Type | SMC | |
| Compliance Standards | UL94 V0, J-STD-020 MSL level 1, JESD 22-B102 E3, MIL-STD-750 method 2026, IEC 61000-4-4 level 4, ISO10605, ISO7637-2 |
Key Features
- AEC-Q101 qualified for automotive use.
- High peak pulse power dissipation: 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.
- Unidirectional and bidirectional types available.
- Compliant with various standards including UL94 V0, J-STD-020, JESD 22-B102 E3, MIL-STD-750, IEC 61000-4-4, ISO10605, and ISO7637-2.
- Lead finishing: matte tin plating.
- High power capability at high junction temperatures.
Applications
The SM15T68CAY 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 power systems.
- Infotainment and navigation systems.
- Safety and security systems (e.g., airbags, ABS).
- Engine control units (ECUs).
- Other sensitive electronic circuits in vehicles.
Q & A
- What is the peak pulse power dissipation of the SM15T68CAY?
The peak pulse power dissipation is 1500 W for a 10/1000 µs pulse and 10 kW for an 8/20 µs pulse.
- What is the stand-off voltage of the SM15T68CAY?
The stand-off voltage is 58.1 V.
- What are the operating and storage temperature ranges for the SM15T68CAY?
The operating junction temperature range is -55 to +150 °C, and the storage temperature range is -65 to +150 °C.
- Is the SM15T68CAY AEC-Q101 qualified?
- What types of protection does the SM15T68CAY offer?
The SM15T68CAY protects against surges defined in ISO 7637-2 and electrostatic discharges according to ISO 10605.
- What is the leakage current of the SM15T68CAY at 25 °C and 85 °C?
The leakage current is 0.2 µA at 25 °C and 1 µA at 85 °C.
- What package type is the SM15T68CAY available in?
The SM15T68CAY is available in the SMC package type.
- What are the compliance standards for the SM15T68CAY?
The SM15T68CAY complies with standards such as UL94 V0, J-STD-020 MSL level 1, JESD 22-B102 E3, MIL-STD-750 method 2026, IEC 61000-4-4 level 4, ISO10605, and ISO7637-2.
- What is the maximum lead temperature for soldering?
The maximum lead temperature for soldering is 260 °C for 10 seconds.
- What is the recommended reflow profile for the SM15T68CAY?
The recommended reflow profile follows the ST ECOPACK guidelines and the latest IPC/JEDEC J-STD-020 standards.
