Overview
The SM6T39CA is a Transient Voltage Suppressor (TVS) diode manufactured by STMicroelectronics. It is designed to protect sensitive equipment against electrostatic discharges (ESD) and electrical overstress (EOS) in accordance with IEC 61000-4-2, MIL STD 883, method 3015, and other relevant standards. This device is particularly effective against surges below 600 W (10/1000 μs) and is suitable 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) | W |
| Stand-off Voltage | 33.3 V | V |
| Directionality | Bidirectional | |
| Leakage Current | 0.2 μA at 25 °C, 1 μA at 85 °C | μA |
| Operating Junction Temperature | -55 to 150 °C | °C |
| Lead Finishing | Matte tin plating | |
| Package | SMB | |
| Compliance | UL94 V0, J-STD-020 MSL level 1, JESD 22-B102 E3, MIL-STD-750 method 2026 |
Key Features
- 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
- High operating junction temperature: up to 150 °C
- Planar technology for reliability and stability in high-end equipment and SMPS
- Compliance with various industry standards including IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883
- Matte tin plated leads for solderability
Applications
The SM6T39CA is suitable for a variety of applications where protection against electrostatic discharges and electrical overstress is crucial. These include:
- High-end industrial equipment
- Switch-Mode Power Supplies (SMPS)
- Sensitive electronic circuits requiring high reliability and stability
- Automotive and aerospace systems where robust protection is necessary
- Telecommunication and networking equipment
Q & A
- What is the peak pulse power of the SM6T39CA?
The peak pulse power of the SM6T39CA is 600 W (10/1000 μs) and 4 kW (8/20 μs).
- What is the stand-off voltage of the SM6T39CA?
The stand-off voltage of the SM6T39CA is 33.3 V.
- Is the SM6T39CA unidirectional or bidirectional?
The SM6T39CA is a bidirectional TVS diode.
- What is the leakage current of the SM6T39CA?
The leakage current of the SM6T39CA is 0.2 μA at 25 °C and 1 μA at 85 °C.
- What is the operating junction temperature range of the SM6T39CA?
The operating junction temperature range of the SM6T39CA is -55 to 150 °C.
- What package type is the SM6T39CA available in?
The SM6T39CA is packaged in SMB.
- Does the SM6T39CA comply with industry standards?
Yes, the SM6T39CA complies with various industry standards including IEC 61000-4-2, IEC 61000-4-4, and MIL STD 883.
- What is the lead finishing of the SM6T39CA?
The leads of the SM6T39CA are finished with matte tin plating.
- Where can I find additional resources and design tools for the SM6T39CA?
Additional resources, including SPICE models, CAD symbols, and footprints, can be found on the STMicroelectronics website.
- What are some typical applications for the SM6T39CA?
The SM6T39CA is typically used in high-end industrial equipment, SMPS, and other sensitive electronic circuits requiring robust protection against ESD and EOS).
