The P1500SBL is a SIDACtor® protection thyristor manufactured by Littelfuse, engineered to protect sensitive telecommunications equipment from damaging overvoltage transients. This device provides robust protection against lightning surges and power faults, ensuring reliable operation of connected systems.

Applications

• Central Office Equipment: Protection for line cards and other sensitive components.
• Customer Premises Equipment (CPE): Protection for modems, routers, and other telecommunications devices.
• General Telecom Applications: Surge protection for various telecom interfaces.

Features

• Low Voltage Overshoot: Limits voltage overshoot during surge events, protecting downstream components.
• High Surge Capability: Robust surge handling capability, ensuring reliable protection against lightning and power faults.
• RoHS Compliant: Complies with Restriction of Hazardous Substances directive.
• Low Capacitance: Minimizes signal distortion, crucial for high-speed data transmission.
• Breakdown Voltage: 150V Breakdown Voltage.

Benefits

• Enhanced Equipment Reliability: Protects sensitive equipment from damage due to overvoltage transients, extending its lifespan.
• Reduced Downtime: Minimizes downtime caused by surge-related failures.
• Improved System Performance: Low capacitance ensures signal integrity, leading to better overall system performance.
• Cost-Effective Protection: Provides a cost-effective solution for protecting valuable telecommunications equipment.

Additional Details

The P1500SBL features a DO-214AA (SMB) package, making it suitable for surface mount assembly. Its key electrical specifications include a breakover voltage of 150V and a surge current capability that withstands high-energy transients. The device is designed to quickly switch to a low-voltage on-state when an overvoltage condition occurs, diverting the surge current away from protected circuits. Its low capacitance makes it suitable for high-speed data lines where signal integrity is critical. This SIDACtor device is commonly used in conjunction with other protection components, such as fuses and TVS diodes, to provide comprehensive circuit protection.