Overview
The SM15T75A is a Transil diode from STMicroelectronics, designed to provide high overvoltage protection for sensitive electronic equipment. This component is part of the SM15T series, which is engineered to protect against electrostatic discharges (ESD) according to IEC 61000-4-2, electrical overstress (EOS) as per IEC 61000-4-4 and 5, and MIL STD 883 Method 3015. The SM15T75A is particularly suited for protecting voltage-sensitive devices such as MOS technology and low-voltage supplied ICs due to its fast response time and low clamping factor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power Dissipation (10/1000 μs) | 1500 | W |
| Power Dissipation on Infinite Heatsink (Tamb = 50°C) | 6.5 | W |
| Non-Repetitive Surge Peak Forward Current (tp = 10 ms) | 200 | A |
| Storage Temperature Range | -65 to +175 | °C |
| Maximum Junction Temperature | 150 | °C |
| Maximum Lead Temperature for Soldering (10 s) | 260 | °C |
| Stand-off Voltage (VRM) | 64.1 - 71.3 | V |
| Breakdown Voltage (VBR) @ IR = 1 mA | 75 | V |
| Clamping Voltage (VCL) @ IPP | 103 | V |
| Leakage Current @ VRM | 10.5 µA | µA |
| Junction to Leads Thermal Resistance (Rth j-l) | 15 | °C/W |
| Junction to Ambient Thermal Resistance (Rth j-a) | 75 | °C/W |
Key Features
- High Overvoltage Protection: The SM15T75A provides protection against electrostatic discharges and electrical overstress, making it suitable for sensitive electronic equipment.
- Low Clamping Factor: Ensures minimal voltage increase during transient events, protecting sensitive components effectively.
- Fast Response Time: Instantaneous response to transient overvoltages, ideal for protecting MOS technology and low-voltage ICs.
- UL Recognized: Meets UL (Underwriters Laboratories) standards for safety and reliability.
- Low Leakage Current: Minimizes power consumption and heat generation, enhancing overall system efficiency.
- High Junction Temperature: Operates reliably up to 150°C, suitable for high-temperature applications.
- ECOPACK Compliant: Available in environmentally friendly packages that meet ECOPACK standards.
Applications
- Power Supplies and SMPS: Protects against surges and overvoltages in power supply units and switch-mode power supplies.
- Telecommunications and Networking Equipment: Safeguards sensitive components in telecom and networking devices.
- Automotive Electronics: Used in automotive systems to protect against electrical surges and ESD.
- Industrial Control Systems: Provides overvoltage protection in industrial control and automation systems.
- Consumer Electronics: Protects electronic devices such as TVs, computers, and other consumer electronics against transient voltages.
Q & A
- What is the peak pulse power dissipation of the SM15T75A?
The peak pulse power dissipation of the SM15T75A is 1500 W (10/1000 μs).
- What are the stand-off and breakdown voltages of the SM15T75A?
The stand-off voltage (VRM) is between 64.1 and 71.3 V, and the breakdown voltage (VBR) is 75 V.
- What is the maximum junction temperature for the SM15T75A?
The maximum junction temperature is 150°C.
- What is the leakage current at the stand-off voltage?
The leakage current at the stand-off voltage is 10.5 µA.
- Is the SM15T75A UL recognized?
Yes, the SM15T75A is UL recognized.
- What is the thermal resistance from junction to ambient for the SM15T75A?
The thermal resistance from junction to ambient is 75 °C/W).
- What are the typical applications of the SM15T75A?
The SM15T75A is typically used in power supplies, telecommunications, automotive electronics, industrial control systems, and consumer electronics).
- What package type is the SM15T75A available in?
The SM15T75A is available in an SMC (Surface Mount) package).
- Does the SM15T75A meet environmental compliance standards?
Yes, the SM15T75A is available in ECOPACK compliant packages).
- What is the maximum lead temperature for soldering the SM15T75A?
The maximum lead temperature for soldering is 260°C for 10 seconds).
