Overview
The SM6T18AY is a high-performance Transient Voltage Suppressor (TVS) designed by STMicroelectronics for automotive applications. This component is part of the SM6TY series, which is engineered to protect sensitive automotive circuits against surges defined in ISO 7637-2 and electrostatic discharges according to ISO 10605. The SM6T18AY features a peak pulse power of 600 W (10/1000 μs) and 4 kW (8/20 μs), making it highly reliable for high-end automotive electronics.
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 | 18 | V |
| Maximum Junction Temperature | 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 | SMB | |
| Compliance Standards | UL94 V0, J-STD-020 MSL level 1, J-STD-002, JESD 22-B102 E3, MIL-STD-750 method 2026 |
Key Features
- AEC-Q101 qualified for automotive reliability.
- High power capability: up to 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 range: -55 to +150 °C.
- Compliant with ISO 7637-2 and ISO 10605 for surge and electrostatic discharge protection.
- Matte tin plated leads for solderability.
- ECOPACK compliant for environmental sustainability.
Applications
The SM6T18AY is designed for use in automotive electronics, particularly in systems that require protection against electrical surges and electrostatic discharges. It is suitable for various applications such as:
- Automotive control units.
- Sensor protection.
- Infotainment systems.
- Power supply protection.
- Other high-reliability automotive circuits.
Q & A
- What is the peak pulse power dissipation of the SM6T18AY?
The peak pulse power dissipation of the SM6T18AY is 600 W (10/1000 μs) and 4 kW (8/20 μs). - What is the stand-off voltage of the SM6T18AY?
The stand-off voltage of the SM6T18AY is 18 V. - What are the operating junction temperature limits for the SM6T18AY?
The operating junction temperature range for the SM6T18AY is -55 to +150 °C. - Is the SM6T18AY compliant with automotive standards?
Yes, the SM6T18AY is AEC-Q101 qualified and complies with ISO 7637-2 and ISO 10605 standards. - What is the leakage current of the SM6T18AY 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 SM6T18AY available in?
The SM6T18AY is available in the SMB package type. - Is the SM6T18AY environmentally friendly?
Yes, the SM6T18AY is ECOPACK compliant, ensuring environmental sustainability. - What are the storage temperature limits for the SM6T18AY?
The storage temperature range for the SM6T18AY is -65 to +150 °C. - What is the maximum lead temperature for soldering the SM6T18AY?
The maximum lead temperature for soldering is 260 °C. - Does the SM6T18AY protect against electrostatic discharges?
Yes, the SM6T18AY protects against electrostatic discharges according to ISO 10605.
