The SMAJ18CA-TR from STMicroelectronics is a robust Transient Voltage Suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by system inductance, lightning, and other transient voltage events. This high-quality TVS diode is specifically engineered to safeguard voltage-sensitive components which can be affected by sudden voltage spikes, making it an indispensable component in a wide range of applications including consumer electronics, automotive systems, and industrial equipment.
Product Features:
- Stand-off Voltage: The device offers a stand-off voltage of 18V, which is the maximum voltage that can be applied over the diode without causing it to conduct in avalanche mode.
- Peak Pulse Power: It can handle a peak pulse power of 400W (10/1000μs waveform), providing a high degree of protection against energy transients.
- Clamping Voltage: The SMAJ18CA-TR has a clamping voltage of 29.2V, ensuring that any transient voltage exceeding the stand-off voltage is clamped at a safe level for the protected circuit components.
- Bidirectional Protection: As a bidirectional TVS, this diode can protect circuits from voltage transients in both positive and negative directions, making it versatile for various applications.
- Low Leakage Current: It features a low leakage current, minimizing power loss when the diode is in the standby state and enhancing the overall efficiency of the application it is used in.
- Package: The device comes in a compact SMA package, which is ideal for automated assembly and offers a good balance between board space economy and thermal performance.
- Compliance: This TVS diode is compliant with industrial standards such as IEC 61000-4-2 and IEC 61000-4-5, ensuring reliability and performance in harsh environments.
Applications:
The SMAJ18CA-TR is suitable for a variety of applications where transient voltage protection is critical. It is commonly used in:
- Power supply lines
- Communication systems
- Automotive electronics
- Portable devices
- Microprocessor-based equipment
With its excellent suppression capabilities, the SMAJ18CA-TR is a reliable choice for designers looking to enhance the durability and longevity of their electronic systems against voltage transients.
