Overview
The SM6T22AY is a Transient Voltage Suppressor (TVS) diode manufactured by STMicroelectronics. It is part of the SM6TY series, designed to protect sensitive automotive circuits against surges and electrostatic discharges. This component is AEC-Q101 qualified, ensuring it meets stringent automotive standards. The SM6T22AY features a high peak pulse power dissipation capability and is 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) | 600 | W |
| Peak Pulse Power Dissipation (8/20 µs) | 4 kW | |
| Stand-off Voltage | 22 V | V |
| Clamping Voltage (VCL) at 25°C | 30.6 V | V |
| Peak Pulse Current (IPP) | 20 A | A |
| Leakage Current at 25°C | 0.2 µA | µA |
| Operating Junction Temperature Range | -55 to +150 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Maximum Lead Temperature for Soldering | 260 | °C |
Key Features
- AEC-Q101 qualified for automotive applications.
- High peak pulse power dissipation: 600 W (10/1000 µs) and 4 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, JESD 22-B102 E3, MIL-STD-750 method 2026, and more.
- High surge capability: exceeds level 4 of IEC 61000-4-4 and ISO10605.
- Planar technology for compatibility with high-end circuits.
- Lead finishing: matte tin plating.
Applications
The SM6T22AY is designed to protect sensitive automotive circuits against electrical surges and electrostatic discharges. It is particularly suited for applications that require high reliability and stability, such as:
- Automotive electronics protection.
- Protection against ISO 7637-2 surges.
- Protection against electrostatic discharges according to ISO 10605.
- High-end automotive systems requiring low leakage current and high junction temperature stability.
Q & A
- What is the peak pulse power dissipation of the SM6T22AY?
The peak pulse power dissipation is 600 W (10/1000 µs) and 4 kW (8/20 µs).
- What is the stand-off voltage of the SM6T22AY?
The stand-off voltage is 22 V.
- What is the clamping voltage of the SM6T22AY at 25°C?
The clamping voltage is 30.6 V.
- What is the maximum operating junction temperature of the SM6T22AY?
The maximum operating junction temperature is 150 °C.
- Is the SM6T22AY AEC-Q101 qualified?
Yes, the SM6T22AY is AEC-Q101 qualified for automotive applications.
- What are the compliance standards for the SM6T22AY?
The SM6T22AY complies with standards such as UL94 V0, J-STD-020 MSL level 1, JESD 22-B102 E3, and more.
- What is the leakage current of the SM6T22AY at 25°C?
The leakage current is 0.2 µA at 25 °C.
- What is the maximum lead temperature for soldering the SM6T22AY?
The maximum lead temperature for soldering is 260 °C.
- What type of lead finishing does the SM6T22AY have?
The SM6T22AY has matte tin plating.
- What are the typical applications of the SM6T22AY?
The SM6T22AY is typically used for protecting sensitive automotive circuits against electrical surges and electrostatic discharges.
