Overview
The SM15T22CA 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 complies with standards such as IEC 61000-4-2, MIL STD 883 Method 3015, and IEC 61000-4-4 and 5. The SM15T22CA is particularly suited for applications requiring protection against surges below 1500 W (10/1000 μs) and up to 10 kW (8/20 μs).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power Dissipation | 1500 W | (10/1000 μs) |
| Peak Pulse Power Dissipation | Up to 10 kW | (8/20 μs) |
| Maximum Reverse Stand-off Voltage | 18.8 V | |
| Direction Type | Bidirectional | |
| Maximum Clamping Voltage | 39.3 V | |
| Maximum Peak Pulse Current | 254 A | |
| Low Leakage Current | 1 µA | (at 25 °C) |
| Operating Junction Temperature Range | -55 °C to +150 °C | |
| Package Type | SMC (DO-214AB) | |
| Mounting Type | Surface Mount | |
| Dimensions | 7.15 x 6.25 x 2.45 mm |
Key Features
- High peak pulse power dissipation: 1500 W (10/1000 μs) and up to 10 kW (8/20 μs).
- Bidirectional protection, offering versatility in circuit design.
- Low leakage current: 1 µA at 25 °C, ensuring minimal impact on the circuit's power consumption.
- High operating junction temperature: up to 150 °C, making it suitable for high-temperature environments.
- Compliance with various standards: IEC 61000-4-2, MIL STD 883 Method 3015, and IEC 61000-4-4 and 5.
- Lead finishing: matte tin plating, enhancing solderability and reliability.
- Surface mount package (SMC), ideal for automated placement and high-density PCBs.
Applications
The SM15T22CA is suitable for a wide range of applications requiring protection against voltage transients and electrical overstress. These include:
- Protection of sensitive electronics in consumer, computer, and industrial equipment.
- Automotive systems, particularly those requiring AEC-Q101 qualification.
- Telecommunication devices and networks.
- Protection of ICs, MOSFETs, and signal lines in various electronic systems.
- Lightning-induced transient protection and switching transients induced by large coils or industrial motors.
Q & A
- What is the peak pulse power dissipation of the SM15T22CA?
The peak pulse power dissipation is 1500 W (10/1000 μs) and up to 10 kW (8/20 μs).
- What is the maximum reverse stand-off voltage of the SM15T22CA?
The maximum reverse stand-off voltage is 18.8 V.
- Is the SM15T22CA unidirectional or bidirectional?
The SM15T22CA is bidirectional.
- What is the maximum operating junction temperature of the SM15T22CA?
The maximum operating junction temperature is 150 °C.
- What is the package type of the SM15T22CA?
The package type is SMC (DO-214AB).
- What are the dimensions of the SM15T22CA?
The dimensions are 7.15 x 6.25 x 2.45 mm.
- Is the SM15T22CA RoHS compliant?
Yes, the SM15T22CA is RoHS compliant with an Ecopack2 grade.
- What is the leakage current of the SM15T22CA at 25 °C?
The leakage current is 1 µA at 25 °C.
- What standards does the SM15T22CA comply with?
The SM15T22CA complies with IEC 61000-4-2, MIL STD 883 Method 3015, and IEC 61000-4-4 and 5.
- What are typical applications for the SM15T22CA?
Typical applications include protection of sensitive electronics in consumer, computer, industrial, automotive, and telecommunication systems.
