Overview
The SM15T27AY is a high-performance Transil™ device manufactured by STMicroelectronics, designed to protect sensitive automotive circuits against surges and electrostatic discharges. This component is part of the SM15TY series, which utilizes Planar technology to ensure compatibility with high-end circuits requiring low leakage current and high junction temperature for long-term reliability and stability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Peak Pulse Power Dissipation (10/1000 µs) | 1500 | W |
| Peak Pulse Power Dissipation (8/20 µs) | 10 kW | W |
| Stand-off Voltage Range | 5.8 V to 70 V | V |
| Operating Junction Temperature Range | -55 to +150 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Maximum Lead Temperature for Soldering | 260 | °C |
| Leakage Current at 25 °C | 0.2 µA | µA |
| Leakage Current at 85 °C | 1 µA | µA |
| VBR at 25 °C (SM15T27AY) | 23.1 to 28.4 V | V |
| VCL at 25 °C (10/1000 µs) | 37.5 V | V |
| Dynamic Resistance (RD) at 25 °C (10/1000 µs) | 0.228 Ω | Ω |
Key Features
- AEC-Q101 qualified for automotive applications.
- High peak pulse power dissipation: 1500 W (10/1000 µs) and 10 kW (8/20 µs).
- Stand-off voltage range from 5.8 V to 70 V.
- Available in unidirectional and bidirectional types.
- Low leakage current: 0.2 µA at 25 °C and 1 µA at 85 °C.
- Operating junction temperature up to 150 °C.
- High power capability at Tj max: up to 1250 W (10/1000 µs).
- Lead finishing: matte tin plating.
- Compliant with various standards including UL94 V0, J-STD-020 MSL level 1, and ISO 10605.
- JEDEC registered package outline and IPC7531 footprint.
Applications
The SM15T27AY is designed to protect sensitive automotive circuits against surges defined in ISO 7637-2 and against electrostatic discharges according to ISO 10605. It is suitable for use in high-end automotive electronics where reliability and stability are critical, such as in engine control units, infotainment systems, and other sensitive electronic circuits.
Q & A
- What is the peak pulse power dissipation of the SM15T27AY?
The peak pulse power dissipation is 1500 W (10/1000 µs) and 10 kW (8/20 µs).
- What is the stand-off voltage range of the SM15T27AY?
The stand-off voltage range is from 5.8 V to 70 V.
- What are the operating and storage temperature ranges for the SM15T27AY?
The operating junction temperature range is -55 to +150 °C, and the storage temperature range is -65 to +150 °C.
- What is the leakage current of the SM15T27AY at different temperatures?
The leakage current is 0.2 µA at 25 °C and 1 µA at 85 °C.
- Is the SM15T27AY AEC-Q101 qualified?
- What package type is used for the SM15T27AY?
The SM15T27AY is packaged in SMC (JEDEC DO-214AB) with IPC7531 footprint.
- What are the compliance standards for the SM15T27AY?
The device complies with standards such as UL94 V0, J-STD-020 MSL level 1, ISO 10605, and ISO 7637-2.
- What is the maximum lead temperature for soldering?
The maximum lead temperature for soldering during 10 seconds is 260 °C.
- What is the dynamic resistance (RD) of the SM15T27AY?
The dynamic resistance (RD) at 25 °C (10/1000 µs) is 0.228 Ω.
- What are the typical applications of the SM15T27AY?
The SM15T27AY is used to protect sensitive automotive circuits in applications such as engine control units, infotainment systems, and other high-end automotive electronics).
