Menlo Park, Calif. Raychem Circuit Protection, a business unit of Tyco Electronics Corp., has expanded its circuit protection line with the addition of gas discharge tubes (GDTs). These devices are typically used to help protect sensitive telecom equipment such as power lines, communication lines, signal lines and data transmission lines from damage caused by transient surge voltages that typically result from lightning strikes and equipment switching operations.
GDTs are placed in front of, and in parallel with, the equipment and act as a high impedance component but doesn't effect the signal in normal operation. In the event of an overvoltage surge, such as a lightning strike, the GDT switches to a low impedance state, and diverts the energy away from the sensitive equipment. Due to their low capacitance, the GDTs also have less signal distortion than other overvoltage protection technologies, according to the company.
Raychem said its GDTs offer a higher level of protection, compared with typical GDTs, due to their fast and accurate break-over voltage, which makes them suitable for applications such as MDF (Main Distribution Frame) modules, high data-rate telecom applications (e.g. ADSL, VDSL), and surge protection on power lines.
Prices start at $0.30 each in quantities of 100,000 per year. Samples are available now. Delivery is eight weeks.
Call (800) 227-7040