The P4500TA Thyristor Surge Suppressor from RUILON is a high-voltage transient protection device designed to protect sensitive electronic circuits from high-energy surges and voltage spikes. Built using advanced thyristor (TSS) technology, this component offers ultra-fast switching response and robust clamping performance, making it ideal for telecom, industrial, and AC power line protection applications.
With a breakover voltage range of approximately 400V to 540V, the P4500TA provides an elevated protection threshold compared to lower voltage devices, effectively minimizing nuisance triggering while ensuring reliable suppression of transient overvoltages. Its high peak pulse current capability of up to 800A (8/20µs waveform) allows it to withstand severe surge conditions such as lightning strikes, inductive switching, and power line disturbances.
The device features moderate capacitance of around 150pF, enabling a good balance between signal integrity and surge protection performance, making it suitable for communication interfaces and high-voltage lines. Additionally, its low on-state voltage (~4–5V) ensures efficient surge conduction, reducing thermal stress and improving long-term reliability.
Encased in a compact SMA (DO-214AC) surface-mount package, the P4500TA supports easy PCB integration and space-efficient designs. It is widely used in telecommunications infrastructure, industrial automation systems, power supplies, and consumer electronics requiring dependable high-voltage surge protection.
Key Features:
- 400V–540V breakover voltage range for high-voltage protection
- High surge current capability (up to 800A, 8/20µs)
- Fast switching thyristor-based protection
- Moderate capacitance (~150pF) for balanced signal integrity
- Low on-state voltage (~4–5V) for efficient surge conduction
- Compact SMA (DO-214AC) package
- High reliability and long operational life
Applications:
- Telecom and communication systems
- Broadband and networking equipment
- AC power line and power supply protection
- Industrial automation and control systems
- Consumer electronics and appliances
- Surge protection devices (SPD)
