P4000TA 400V Thyristor Surge Suppressor SMA/DO-214AC | 800A Peak Surge | 150pF Capacitance | RUILON
RUILON
The P4000TA Thyristor Surge Suppressor from RUILON is a high-voltage transient protection device engineered to safeguard sensitive electronic circuits from high-energy surges and voltage spikes. Utilizing advanced thyristor (TSS) technology, this component provides ultra-fast switching response and strong clamping capability, making it ideal for telecom, industrial, and power line protection applications.
With a breakover voltage range of approximately 360V to 460V, the P4000TA delivers a higher 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) enables it to withstand severe surge events such as lightning strikes and switching transients.
The device features moderate capacitance of around 150pF, offering a balanced combination of signal integrity and surge robustness, making it suitable for communication interfaces and power lines. Additionally, its low on-state voltage (~4–5V) ensures efficient conduction during surge conditions, reducing thermal stress and enhancing overall system reliability.
Encased in a compact SMA (DO-214AC) surface-mount package, the P4000TA allows easy PCB integration and space-efficient design flexibility. It is widely used in telecommunications equipment, industrial automation systems, power supplies, and consumer electronics requiring dependable surge protection.
Key Features:
- 360V–460V 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 performance
- Low on-state voltage (~4–5V) for efficient surge conduction
- Compact SMA (DO-214AC) package
- High reliability and long service life
Applications:
- Telecom and communication systems
- Broadband and networking equipment
- Power supply and AC line protection
- Industrial automation and control systems
- Consumer electronics and appliances
- Surge protection devices (SPD)**
