Overview
The SM6T18CA is a Transient Voltage Suppressor (TVS) diode produced by STMicroelectronics. It is designed to protect sensitive equipment against electrostatic discharges and electrical overstress. This device complies with various international standards, including IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883, method 3015. The SM6T18CA is particularly suited for high-end equipment and Switch-Mode Power Supplies (SMPS) where low leakage current and high junction temperature are critical for reliability and stability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power | 600 W (10/1000 μs), 4 kW (8/20 μs) | - |
| Stand-off Voltage (VRM) | 15.3 V | V |
| Directionality | Bidirectional | - |
| Leakage Current | 0.2 μA at 25 °C, 1 μA at 85 °C | μA |
| Operating Junction Temperature (Tj) | -55 to +150 °C | °C |
| High Power Capability at Tjmax | Up to 350 W (10/1000 µs) | - |
| Lead Finishing | Matte tin plating | - |
| Package | SMB | - |
Key Features
- High peak pulse power capability: 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
- High operating junction temperature: up to 150 °C
- Compliance with IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883 standards
- Planar technology for high reliability and stability
- Unidirectional and bidirectional types available
- Lead finishing: matte tin plating
Applications
The SM6T18CA is suitable for a variety of applications, including:
- High-end equipment protection against electrostatic discharges and electrical overstress
- Switch-Mode Power Supplies (SMPS) where low leakage current and high junction temperature are required
- Industrial and automotive systems requiring robust surge protection
- Telecommunication and networking equipment
- Consumer electronics and appliances needing reliable surge protection
Q & A
- What is the peak pulse power of the SM6T18CA?
The peak pulse power of the SM6T18CA is 600 W (10/1000 μs) and 4 kW (8/20 μs). - What is the stand-off voltage of the SM6T18CA?
The stand-off voltage (VRM) of the SM6T18CA is 15.3 V. - Is the SM6T18CA unidirectional or bidirectional?
The SM6T18CA is bidirectional. - What is the leakage current of the SM6T18CA at 25 °C and 85 °C?
The leakage current is 0.2 μA at 25 °C and 1 μA at 85 °C. - What is the operating junction temperature range of the SM6T18CA?
The operating junction temperature range is -55 to +150 °C. - What is the package type of the SM6T18CA?
The SM6T18CA is packaged in SMB. - Does the SM6T18CA comply with any international standards?
Yes, it complies with IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883 standards. - What is the lead finishing of the SM6T18CA?
The lead finishing is matte tin plating. - What are some common applications of the SM6T18CA?
Common applications include high-end equipment, SMPS, industrial and automotive systems, telecommunication and networking equipment, and consumer electronics. - How does the Planar technology benefit the SM6T18CA?
The Planar technology provides low leakage current and high junction temperature capability, ensuring reliability and stability over time.
