Overview
The SMA6T18AY is a part of the SMA6TY Transil series from STMicroelectronics, designed to protect sensitive automotive circuits against surges and electrostatic discharges. This component is specifically engineered to meet the stringent requirements of automotive environments, ensuring reliability and stability over time. The SMA6T18AY is packaged in the SMA (DO-214AC) package and utilizes planar technology, which is compatible with high-end circuits requiring low leakage current and high junction temperature tolerance.
Key Specifications
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| VPP | Peak pulse voltage (ISO10605, C = 330 pF, R = 330 Ω) | 30 | kV |
| PPP | Peak pulse power dissipation (10/1000 µs, Tj initial = Tamb) | 600 | W |
| Tj | Operating junction temperature range | -55 to +150 | °C |
| Tstg | Storage temperature range | -65 to +150 | °C |
| TL | Maximum lead temperature for soldering during 10 s | 260 | °C |
| IRM max at VRM | Maximum leakage current at VRM | 0.2 µA | µA |
| VBR at IBR | Breakdown voltage at IBR | 15.3 V (Min), 17.1 V (Typ), 18.0 V (Max) | V |
| VCL | Clamping voltage | 25.2 V (Max at 25°C) | V |
| IPP | Peak pulse current | 10 A (Max at 10/1000 µs) | A |
| RD | Dynamic resistance | 0.263 Ω (Max at 25°C) | Ω |
Key Features
- Protection Against Surges and ESD: Compliant with ISO 7637-2 and ISO 10605 standards, protecting against surges and electrostatic discharges.
- Planar Technology: Ensures low leakage current and high junction temperature tolerance, making it suitable for high-end automotive circuits.
- Automotive Grade: Designed specifically for automotive applications, ensuring reliability and stability in harsh environments.
- SMA Package: Compact SMA (DO-214AC) package suitable for surface mount applications.
- Environmental Compliance: Available in ECOPACK packages with various environmental compliance grades.
Applications
- Automotive Electronics: Ideal for protecting sensitive circuits in automotive systems, including infotainment, navigation, and safety systems.
- Industrial Control Systems: Suitable for protecting against surges and ESD in industrial control and automation systems.
- Consumer Electronics: Can be used in consumer electronics requiring protection against voltage spikes and ESD.
Q & A
- What is the peak pulse power dissipation of the SMA6T18AY?
The peak pulse power dissipation is 600 W for a 10/1000 µs pulse duration.
- What is the operating junction temperature range of the SMA6T18AY?
The operating junction temperature range is -55°C to +150°C.
- What are the dimensions of the SMA package for the SMA6T18AY?
The SMA package dimensions are detailed in Table 3 of the datasheet, with key dimensions including A1 = 1.90 to 2.45 mm and E = 4.80 to 5.35 mm.
- Is the SMA6T18AY compliant with automotive surge standards?
Yes, it is compliant with ISO 7637-2 standards for automotive surges.
- What is the breakdown voltage of the SMA6T18AY?
The breakdown voltage is 15.3 V (Min), 17.1 V (Typ), and 18.0 V (Max).
- Can the SMA6T18AY protect against electrostatic discharges?
Yes, it is designed to protect against electrostatic discharges according to ISO 10605.
- What is the maximum lead temperature for soldering the SMA6T18AY?
The maximum lead temperature for soldering is 260°C for 10 seconds.
- Is the SMA6T18AY available in different environmental compliance grades?
Yes, it is available in various ECOPACK packages with different environmental compliance grades.
- What is the dynamic resistance of the SMA6T18AY?
The dynamic resistance is 0.263 Ω (Max at 25°C).
- What are the typical applications of the SMA6T18AY?
Typical applications include automotive electronics, industrial control systems, and consumer electronics requiring surge and ESD protection.
