Overview
The SM15T220A is a Transil™ TVS (Transient Voltage Suppressor) diode from STMicroelectronics, designed to protect sensitive equipment against electrostatic discharges and electrical overstress. This device is part of the SM15T series, which complies with various international standards including IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5, and MIL STD 883 Method 3015. The SM15T220A 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 (10/1000 µs) | 1500 | W |
| Peak Pulse Power (8/20 µs) | Up to 10 kW | W |
| Stand-off Voltage (VRM) | 188 | V |
| Directionality | Unidirectional | |
| Leakage Current at 25 °C | 0.2 µA | µA |
| Operating Junction Temperature Range | -55 to +150 | °C |
| Maximum Lead Temperature for Soldering | 260 | °C |
| Package Type | SMC (JEDEC DO-214AB) | |
| Lead Finishing | Matte tin plating |
Key Features
- High power capability: Up to 1500 W (10/1000 µs) and up to 10 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, IEC 61000-4-5, and MIL STD 883 Method 3015
- Unidirectional and bidirectional types available
- Planar technology for high reliability and stability in high-end equipment and SMPS
- UL 94, V0 rated epoxy for flammability
- RoHS compliant ECOPACK® package
Applications
The SM15T220A is suitable for various applications requiring protection against electrostatic discharges and electrical overstress, including:
- High-end electronic equipment
- Switch-Mode Power Supplies (SMPS)
- Industrial control systems
- Automotive electronics
- Telecommunication systems
Q & A
- What is the peak pulse power of the SM15T220A?
The peak pulse power of the SM15T220A is 1500 W (10/1000 µs) and up to 10 kW (8/20 µs).
- What is the stand-off voltage of the SM15T220A?
The stand-off voltage (VRM) of the SM15T220A is 188 V.
- What is the leakage current of the SM15T220A at 25 °C?
The leakage current at 25 °C is 0.2 µA.
- What is the operating junction temperature range of the SM15T220A?
The operating junction temperature range is -55 to +150 °C.
- Is the SM15T220A RoHS compliant?
- What standards does the SM15T220A comply with?
The SM15T220A complies with IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5, and MIL STD 883 Method 3015.
- What is the package type of the SM15T220A?
The package type is SMC (JEDEC DO-214AB).
- What is the lead finishing of the SM15T220A?
The lead finishing is matte tin plating.
- Is the SM15T220A suitable for high-end equipment?
- What are the flammability ratings of the SM15T220A's epoxy?
The epoxy meets UL 94, V0 flammability ratings.
