Overview
The SM15T12AY is a high-power transient voltage suppressor (TVS) diode manufactured by STMicroelectronics. It is designed to provide robust and reliable protection against electrical transients and surges, particularly in automotive and industrial applications. This TVS diode features a unidirectional design and is part of the SM15TY series, which is qualified to the automotive standard AEC-Q101. The SM15T12AY is known for its high power handling and compact surface mount package, making it an ideal choice for protecting sensitive electronic components in harsh environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | SM15T12AY | |
| Manufacturer | STMicroelectronics | |
| Description | TVS DIODE 10.2VWM 21.7VC SMC | |
| Package / Case | DO-214AB, SMC | |
| Voltage - Reverse Standoff (Typ) | 10.2V | V |
| Voltage - Breakdown (Min) | 11.4V | V |
| Voltage - Clamping (Max) @ Ipp | 21.7V | V |
| Unidirectional Channels | 1 | |
| Current - Peak Pulse (10/1000µs) | 461A (8/20µs) | A |
| Power - Peak Pulse | 1500W (1.5kW) | W |
| Operating Temperature | -40°C ~ 150°C (TJ) | °C |
| Mounting Type | Surface Mount | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- High Power Handling: The SM15T12AY can handle a peak pulse power of 1500W (1.5kW), making it suitable for high-power applications.
- Compact Surface Mount Package: The DO-214AB, SMC package is compact and ideal for space-constrained designs.
- Automotive-Grade Qualification: Qualified to the AEC-Q101 standard, ensuring reliability in automotive applications.
- Robust Transient Voltage Suppression: Designed to protect against surges defined in ISO 7637-2 and electrostatic discharges according to ISO 10605.
- High Junction Temperature: Operates reliably with a junction temperature range of -55°C to 150°C.
- Low Leakage Current: Utilizes Planar technology to ensure low leakage current and high reliability.
Applications
- Automotive Electronics: Protects sensitive circuits in automotive systems against electrical transients and surges.
- Industrial Control Systems: Provides robust protection in industrial control systems where high reliability is crucial.
- Power Supplies: Ensures the stability and reliability of power supply systems by protecting against voltage surges.
- Communications Equipment: Safeguards communication equipment from electrical transients and surges.
Q & A
- What is the primary function of the SM15T12AY?
The SM15T12AY is a transient voltage suppressor (TVS) diode designed to protect sensitive electronic components from electrical transients and surges.
- What is the peak pulse power handling of the SM15T12AY?
The SM15T12AY can handle a peak pulse power of 1500W (1.5kW).
- What is the typical reverse standoff voltage of the SM15T12AY?
The typical reverse standoff voltage is 10.2V.
- What is the maximum clamping voltage of the SM15T12AY?
The maximum clamping voltage is 21.7V.
- What is the operating temperature range of the SM15T12AY?
The operating temperature range is -40°C to 150°C (TJ).
- Is the SM15T12AY RoHS compliant?
Yes, the SM15T12AY is lead-free and RoHS compliant.
- What package type does the SM15T12AY use?
The SM15T12AY uses the DO-214AB, SMC package.
- What are the key standards the SM15T12AY complies with?
The SM15T12AY complies with ISO 7637-2 and ISO 10605 standards.
- What is the moisture sensitivity level (MSL) of the SM15T12AY?
The MSL is 1 (Unlimited).
- What are some common applications of the SM15T12AY?
Common applications include automotive electronics, industrial control systems, power supplies, and communications equipment.
