Overview
The SM15T22CAY is a high-performance Transient Voltage Suppressor (TVS) diode manufactured by STMicroelectronics. This component is part of the SM15TY series, designed to protect sensitive automotive circuits against surges and electrostatic discharges. The SM15T22CAY utilizes Planar technology, ensuring compatibility with high-end circuits that require low leakage current and high junction temperature for long-term reliability and stability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | STMicroelectronics | |
| Part Number | SM15T22CAY | |
| Category | TVS Diode | |
| Package / Case | DO-214AB, SMC | |
| Voltage - Reverse Standoff (Typ) | 18.8 V | V |
| Voltage - Clamping (Max) @ Ipp | 39.3 V | V |
| Voltage - Breakdown (Min) | 20.9 V | V |
| Peak Pulse Power Dissipation | 1500 W (10/1000 μs), 10 kW (8/20 μs) | W |
| Current - Peak Pulse (10/1000µs) | 254 A (8/20µs) | A |
| Operating Junction Temperature Range | -40°C to +150°C | °C |
| Storage Temperature Range | -65°C to +150°C | °C |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Key Features
- AEC-Q101 qualified for automotive applications.
- Peak pulse power: 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.
- High operating junction temperature: up to 150 °C.
- High power capability at Tjmax: up to 1250 W (10/1000 µs).
- Lead finishing: matte tin plating.
- Unidirectional and bidirectional types available.
- Compliant with ISO 7637-2 surges and ISO 10605 electrostatic discharges.
Applications
The SM15T22CAY is primarily designed for protecting sensitive automotive circuits. It is suitable for applications that require protection against surges and electrostatic discharges, such as:
- Automotive electronics (e.g., infotainment systems, navigation, and safety systems).
- High-end circuits requiring low leakage current and high junction temperature stability.
- Systems exposed to harsh environmental conditions.
Q & A
- What is the primary function of the SM15T22CAY?
The SM15T22CAY is a TVS diode designed to protect sensitive automotive circuits against surges and electrostatic discharges.
- What is the peak pulse power dissipation of the SM15T22CAY?
The peak pulse power dissipation is 1500 W (10/1000 μs) and 10 kW (8/20 μs).
- What is the operating junction temperature range of the SM15T22CAY?
The operating junction temperature range is -40°C to +150°C.
- Is the SM15T22CAY RoHS compliant?
- What is the moisture sensitivity level (MSL) of the SM15T22CAY?
The MSL is 1 (Unlimited).
- What are the key standards the SM15T22CAY complies with?
The SM15T22CAY complies with ISO 7637-2 surges and ISO 10605 electrostatic discharges.
- What is the typical reverse standoff voltage of the SM15T22CAY?
The typical reverse standoff voltage is 18.8 V.
- What is the maximum clamping voltage of the SM15T22CAY?
The maximum clamping voltage is 39.3 V.
- Is the SM15T22CAY available in both unidirectional and bidirectional types?
- What is the storage temperature range for the SM15T22CAY?
The storage temperature range is -65°C to +150°C.
