The TISP4395M3AJR-S is a surge protection device manufactured by Bourns, Inc. It is designed to protect telecommunications equipment from overvoltage transients. This device is a Thyristor Surge Protector (TSP), which is specifically engineered to provide robust protection against voltage surges caused by lightning strikes, power induction, and other transient events. This particular model is part of the TISP4000M3AJR-S series.

Applications

• Protection of telecommunication lines
• Central office (CO) equipment protection
• Subscriber Line Interface Circuit (SLIC) protection
• Data line protection
• Modem protection

Features

• Voltage: 395V
• Low voltage overshoot
• High surge current capability
• Fail-short circuit protection
• RoHS compliant
• Compact package

Benefits

• Protects sensitive telecommunications equipment from damage due to voltage surges.
• Enhances the reliability and lifespan of protected equipment.
• Reduces downtime and maintenance costs associated with surge-related failures.
• Complies with industry safety standards, ensuring safe operation.
• Easy to integrate into existing circuit designs due to its compact package.

Additional Details

The TISP4395M3AJR-S provides a fail-short mechanism, which ensures that in the event of a catastrophic surge, the device will fail in a shorted state. This protects downstream circuitry by preventing the surge from propagating further. The surge current capability is a key specification, indicating the maximum surge current the device can withstand without being damaged. The clamping voltage is the voltage to which the surge protector will limit the voltage across the protected equipment during a surge event.

The device is commonly used in conjunction with other protection components, such as resistors and fuses, to provide a comprehensive surge protection solution. Proper grounding and PCB layout are crucial for optimal performance. The TISP4395M3AJR-S is designed to meet the stringent requirements of modern telecommunications infrastructure, offering a reliable and cost-effective solution for surge protection.