Overview
The SM15T22A is a Transient Voltage Suppressor (TVS) diode produced by STMicroelectronics. It is part of the SM15T TVS series, designed to protect sensitive equipment against electrostatic discharges and electrical overstress. This component is particularly useful for safeguarding against voltage transients induced by lightning, switching transients, and other high-energy pulses.
The SM15T22A features a planar technology that makes it compatible with high-end equipment, such as Switch-Mode Power Supplies (SMPS), where low leakage current and high junction temperature are crucial 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 Range | 5 V to 188 V | V |
| Reverse Standoff Voltage (Typical) | 18.8 V | V |
| Breakdown Voltage (Minimum) | 20.9 V | V |
| Clamping Voltage (Maximum) @ Ipp | 39.3 V | V |
| Peak Pulse Current (10/1000 μs) | 254 A | A |
| Operating Junction Temperature Range | -55 °C to 150 °C | °C |
| Package | SMC (DO-214AB) | |
| Directionality | Unidirectional | |
| Leakage Current at 25 °C | 0.2 µA | µA |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Lead Finishing | Matte tin plating |
Key Features
- High Power Capability: Up to 1500 W peak pulse power with a 10/1000 μs waveform and up to 10 kW with an 8/20 μs waveform.
- Low Leakage Current: 0.2 µA at 25 °C, ensuring minimal current draw in standby conditions.
- High Junction Temperature: Operating junction temperature range of -55 °C to 150 °C, suitable for high-temperature applications.
- Unidirectional and Bidirectional Types: Available in both unidirectional and bidirectional configurations to suit various protection needs.
- Low Inductance: Designed to minimize inductance, which is crucial for high-frequency applications.
- Automated Placement Friendly: Low profile package ideal for automated placement in manufacturing processes.
- RoHS Compliant: Lead-free and RoHS compliant, meeting environmental regulations.
- AEC-Q101 Qualified: Available with AEC-Q101 qualification for automotive applications.
Applications
The SM15T22A is widely used in various applications to protect sensitive electronics against voltage transients and electrical overstress. These include:
- Consumer Electronics: Protection of ICs, MOSFETs, and signal lines in consumer devices.
- Computer Systems: Safeguarding against voltage spikes in computer hardware and peripherals.
- Industrial Equipment: Protection against transients induced by large coils or industrial motors.
- Automotive Systems: Used in automotive electronics to meet AEC-Q101 standards.
- Telecommunication Systems: Protecting sensitive components in telecommunication equipment.
Q & A
- What is the peak pulse power of the SM15T22A?
The SM15T22A has a peak pulse power of 1500 W with a 10/1000 μs waveform and up to 10 kW with an 8/20 μs waveform.
- What is the operating junction temperature range of the SM15T22A?
The operating junction temperature range is -55 °C to 150 °C.
- Is the SM15T22A RoHS compliant?
- What is the leakage current of the SM15T22A at 25 °C?
- What are the available directionality types for the SM15T series?
- What is the typical thermal resistance of the SM15T22A?
- Is the SM15T22A suitable for automotive applications?
- What is the package type of the SM15T22A?
- What is the maximum clamping voltage of the SM15T22A?
- What is the moisture sensitivity level (MSL) of the SM15T22A?
