Overview
The SM4T35CAY is a high-performance Transient Voltage Suppressor (TVS) diode manufactured by STMicroelectronics. This component is part of the SM4TY series, designed to protect sensitive automotive circuits against surges and electrostatic discharges. It complies with ISO 7637-2 and ISO 10605 standards, making it suitable for high-reliability applications in automotive and other demanding environments. The SM4T35CAY features a bidirectional configuration and is packaged in the DO-214AC (SMA) footprint, ensuring compatibility with a wide range of circuit designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Polarity | Bidirectional | |
| Peak Pulse Power (10/1000 µs) | 400 W | |
| Peak Pulse Power (8/20 µs) | 2.3 kW | |
| Stand-off Voltage | 30 V | V |
| Breakdown Voltage (VBR) | 35.1 V | V |
| Clamping Voltage (VCL) | 48.4 V | V |
| Peak Surge Current (IPP) | 8.3 A | A |
| Operating Junction Temperature Range | -55 to +150 °C | °C |
| Storage Temperature Range | -65 to +150 °C | °C |
| Maximum Lead Temperature for Soldering | 260 °C | °C |
| Package/Case | DO-214AC (SMA) | |
| Dimensions | 5.35 mm W x 4.6 mm L x 2.45 mm H | mm |
Key Features
- AEC-Q101 Qualified: Ensures the component meets stringent automotive quality standards.
- High Peak Pulse Power: Capable of handling 400 W (10/1000 µs) and 2.3 kW (8/20 µs) peak pulse power.
- Low Leakage Current: Minimizes current leakage, enhancing long-term reliability and stability.
- High Junction Temperature: Operates reliably within a junction temperature range of -55 to +150 °C.
- Compliance with Automotive Standards: Meets ISO 7637-2 and ISO 10605 standards for surge and electrostatic discharge protection.
- ECOPACK Compliant: Available in environmentally friendly packaging options.
Applications
- Automotive Systems: Protects sensitive circuits in automotive electronics, including infotainment systems, navigation, and safety features.
- Industrial Control Systems: Used in industrial control systems to protect against voltage surges and spikes.
- Telecommunications: Protects telecommunications equipment from transient voltages.
- Consumer Electronics: Enhances reliability in consumer electronics by protecting against power surges and electrostatic discharges.
Q & A
- What is the peak pulse power rating of the SM4T35CAY?
The SM4T35CAY has a peak pulse power rating of 400 W (10/1000 µs) and 2.3 kW (8/20 µs).
- What are the operating junction temperature limits for the SM4T35CAY?
The operating junction temperature range is -55 to +150 °C.
- Is the SM4T35CAY AEC-Q101 qualified?
- What is the clamping voltage of the SM4T35CAY?
The clamping voltage (VCL) is 48.4 V.
- What is the breakdown voltage (VBR) of the SM4T35CAY?
The breakdown voltage (VBR) is 35.1 V.
- What is the package type of the SM4T35CAY?
The SM4T35CAY is packaged in the DO-214AC (SMA) footprint.
- What are the dimensions of the SM4T35CAY?
The dimensions are 5.35 mm W x 4.6 mm L x 2.45 mm H.
- Is the SM4T35CAY compliant with environmental standards?
- What standards does the SM4T35CAY comply with for surge and electrostatic discharge protection?
- What is the maximum lead temperature for soldering the SM4T35CAY?
