The TISP61089D-S is a surge protector thyristor designed and manufactured by Bourns, Inc. It's engineered to provide robust overvoltage protection for telecommunication lines and other sensitive electronic equipment. This device is part of the Bourns TISP series, known for their reliable and fast-acting surge protection capabilities.

Applications:

• Telecommunication line protection: Protecting telephone lines from voltage surges caused by lightning or other electrical events.
• Central office equipment: Ensuring the reliable operation of sensitive equipment in telecommunication central offices.
• Data communication lines: Protecting data transmission equipment from damage due to overvoltage.
• Customer premises equipment (CPE): Safeguarding equipment like modems, routers, and telephones in homes and businesses.

Features:

• Low voltage overshoot: Minimizes the voltage overshoot during a surge event, providing better protection for downstream components.
• Fast response time: Quickly clamps the voltage to a safe level during a surge, preventing damage.
• High surge current capability: Able to withstand high surge currents without failure.
• Surface mount packaging: Facilitates automated assembly and saves board space.
• RoHS compliant: Complies with environmental regulations, ensuring it's free from hazardous substances.

Benefits:

• Enhanced system reliability: Protects sensitive electronic equipment from damage due to voltage surges, improving overall system reliability.
• Reduced downtime: Minimizes equipment downtime caused by surge-related failures.
• Lower maintenance costs: Reduces the need for repairs and replacements due to surge damage.
• Improved safety: Protects users from electrical hazards associated with voltage surges.
• Compliance with industry standards: Meets relevant industry standards for surge protection.

Additional Details:

The TISP61089D-S typically features a breakover voltage around 89V. The exact specifications can vary, so consulting the datasheet is crucial for specific design requirements. This thyristor acts as a voltage-triggered switch, rapidly transitioning to a low-impedance state when the voltage exceeds the breakover voltage. This diverts the surge current away from the protected circuitry. It is designed for single-shot overvoltage protection and might require replacement after a significant surge event. The device's holding current and on-state voltage are important parameters to consider during circuit design to ensure proper operation and reset after the surge has subsided.