The TDK Corporation B30687-M473E-X921 is a gas-filled surge arrester designed to protect electronic equipment from transient voltage surges caused by events such as lightning strikes and power surges. These devices are commonly used in telecommunications, power supplies, and data transmission applications.

Applications:

• Telecommunications equipment surge protection
• Power supply surge protection
• Data transmission lines surge protection
• Broadband equipment protection
• Industrial equipment surge protection

Features:

• High surge current handling capability
• Low capacitance to minimize signal distortion
• Fast response time to quickly clamp surge voltages
• Compact design for easy integration
• RoHS compliant, meeting environmental standards

Benefits:

• Effective protection against voltage transients, preventing equipment damage
• Improved system reliability and uptime
• Reduced maintenance costs by preventing failures due to surges
• Enhanced safety for personnel and equipment
• Compliance with industry safety standards

Additional Details:

Gas-filled surge arresters, like the B30687-M473E-X921, operate by utilizing a gas-filled chamber that becomes conductive when a high voltage is present. This conductive path diverts the surge current away from the protected equipment and to ground. Once the surge has dissipated, the gas returns to its non-conductive state.

Key Specifications:

• Surge current capability: measured in kA (kiloamperes)
• Breakdown voltage: The voltage level at which the arrester starts to conduct
• Insulation resistance: The resistance of the arrester when not conducting
• Capacitance: The inherent capacitance of the arrester
• Standards compliance: such as IEC 61643-21

Proper grounding is essential for the effective operation of surge arresters. Surge arresters should be installed as close as possible to the equipment being protected to minimize the effects of lead inductance. The B30687-M473E-X921 provides a robust and reliable solution for protecting sensitive electronic equipment from damaging voltage surges.