Overview
The SM6T39CAY is an automotive-grade Transient Voltage Suppressor (TVS) produced by STMicroelectronics. This component is part of the SM6TY series, designed to protect sensitive automotive circuits against surges defined in ISO 7637-2 and electrostatic discharges according to ISO 10605. The SM6T39CAY features a peak pulse power of 600 W (10/1000 µs) and 4 kW (8/20 µs), making it suitable for high-reliability applications in automotive electronics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power Dissipation (10/1000 µs) | 600 | W |
| Peak Pulse Power Dissipation (8/20 µs) | 4000 | W |
| Stand-off Voltage | 33.3 | V |
| Breakdown Voltage (VBR) at 25°C | 37.1 | V |
| Clamping Voltage (VCL) at 25°C | 53.9 | V |
| Leakage Current at 25°C | 0.2 | 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 | SMB |
Key Features
- AEC-Q101 qualified, ensuring high reliability in automotive applications.
- Unidirectional and bidirectional types available.
- Low leakage current: 0.2 µA at 25°C and 1 µA at 85°C.
- High power capability: up to 515 W at Tj max (10/1000 µs).
- Compliant with various standards including UL94 V0, J-STD-020 MSL level 1, and IEC 61000-4-4 level 4.
- Planar technology for compatibility with high-end circuits requiring low leakage current and high junction temperature.
- Solderable matte tin plated leads.
- JEDEC registered package outline and IPC7531 footprint.
Applications
The SM6T39CAY is designed for use in automotive electronics to protect against electrical surges and electrostatic discharges. It is suitable for various applications such as:
- Protection of sensitive automotive circuits.
- Automotive infotainment systems.
- Advanced driver-assistance systems (ADAS).
- Automotive control units and sensors.
Q & A
- What is the peak pulse power dissipation of the SM6T39CAY?
The peak pulse power dissipation of the SM6T39CAY is 600 W (10/1000 µs) and 4 kW (8/20 µs).
- What is the stand-off voltage of the SM6T39CAY?
The stand-off voltage of the SM6T39CAY is 33.3 V.
- Is the SM6T39CAY AEC-Q101 qualified?
Yes, the SM6T39CAY is AEC-Q101 qualified.
- What is the operating junction temperature range of the SM6T39CAY?
The operating junction temperature range is -55 to +150°C.
- What type of package does the SM6T39CAY come in?
The SM6T39CAY comes in an SMB package.
- Is the SM6T39CAY compliant with any specific standards?
Yes, it is compliant with standards such as UL94 V0, J-STD-020 MSL level 1, and IEC 61000-4-4 level 4.
- What is the leakage current of the SM6T39CAY at 25°C?
The leakage current at 25°C is 0.2 µA.
- What is the maximum lead temperature for soldering?
The maximum lead temperature for soldering is 260°C.
- What technology is used in the SM6T39CAY?
The SM6T39CAY uses Planar technology.
- What are some typical applications of the SM6T39CAY?
Typical applications include protection of sensitive automotive circuits, automotive infotainment systems, ADAS, and automotive control units and sensors.
