Overview
The SM15T27A is a Transil™ transient voltage suppressor (TVS) diode produced by STMicroelectronics. This component is designed to provide high overvoltage protection for sensitive electronic equipment against electrostatic discharges, electrical overstress, and voltage transients. The SM15T27A is part of the SM15T series, which is known for its high power capability and low leakage current, making it suitable for a wide range of applications including consumer, computer, industrial, automotive, and telecommunication systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power Dissipation (10/1000 µs) | 1500 | W |
| Peak Pulse Power Dissipation (8/20 µs) | 10 kW | |
| Breakdown Voltage Range | 6.8 V to 220 V | V |
| Operating Junction Temperature Range | -55 to +150 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Maximum Lead Temperature for Soldering | 260 | °C |
| Low Leakage Current at 25 °C | 0.2 µA | |
| Low Leakage Current at 85 °C | 1 µA | |
| Package Type | SMC (JEDEC DO-214AB) | |
| Compliance Standards | IEC 61000-4-2, IEC 61000-4-5, MIL STD 883G, UL 497B |
Key Features
- High power capability: 1500 W (10/1000 µs) and 10 kW (8/20 µs).
- Low leakage current: 0.2 µA at 25 °C and 1 µA at 85 °C.
- Operating junction temperature up to 150 °C.
- Unidirectional and bidirectional types available.
- Compliance with IEC 61000-4-2 level 4, IEC 61000-4-5, and MIL STD 883G, method 3015-7.
- RoHS compliant and ECOPACK® package options.
- Ideal for automated placement due to low profile package.
- Excellent clamping capability and low inductance.
Applications
The SM15T27A is used to protect sensitive electronics against voltage transients induced by inductive load switching, lightning, and other electrical overstress conditions. Typical applications include:
- Consumer electronics
- Computer systems
- Industrial equipment
- Automotive systems
- Telecommunication devices
- Protection of ICs, MOSFETs, and signal lines in sensor units.
Q & A
- What is the peak pulse power dissipation of the SM15T27A?
The peak pulse power dissipation is 1500 W for a 10/1000 µs waveform and 10 kW for an 8/20 µs waveform. - What is the breakdown voltage range for the SM15T series?
The breakdown voltage range is from 6.8 V to 220 V. - What are the operating and storage temperature ranges for the SM15T27A?
The operating junction temperature range is -55 to +150 °C, and the storage temperature range is -65 to +150 °C. - Is the SM15T27A RoHS compliant?
Yes, the SM15T27A is RoHS compliant and available in ECOPACK® packages. - What standards does the SM15T27A comply with?
The SM15T27A complies with IEC 61000-4-2, IEC 61000-4-5, MIL STD 883G, and UL 497B. - What is the maximum lead temperature for soldering?
The maximum lead temperature for soldering is 260 °C. - What are the typical applications of the SM15T27A?
Typical applications include consumer electronics, computer systems, industrial equipment, automotive systems, and telecommunication devices. - Does the SM15T27A come in unidirectional and bidirectional types?
Yes, the SM15T series, including the SM15T27A, is available in both unidirectional and bidirectional types. - What is the leakage current of the SM15T27A at different temperatures?
The leakage current is 0.2 µA at 25 °C and 1 µA at 85 °C. - What package type is used for the SM15T27A?
The SM15T27A is packaged in an SMC (JEDEC DO-214AB) package.
