حفاظت مدار برق‌گیر گازی (جی دی تی)

Product Attributes

Introduction

GDT is placed in front of, and in parallel with, sensitive telecom equipment such as power lines, communication lines, signal lines and data transmission lines to help protect them from damage caused by transient surge voltages that may result from lightning strikes and equipment switching operations. These devices do not influence the signal in normal operation. However, 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. Our GDT offer a high level of surge protection, a broad voltage range, low capacitance, and many form factors including new surface mount devices, which makes them suitable for applications such as Main Distribution Frame (MDF) modules, high data-rate telecom applications (e.g. ADSL, VDSL), and surge protection on power lines. Their low capacitance also results in less signal distortion. When used in a coordinated circuit protection solution with PolySwitch devices, they can help equipment manufacturers meet stringent safety regulatory standards.

Features

• Excellent response to fast rising transients
• Stable breakdown voltage
• GHz working frequency
• 8/20μs Impulse current capability: 20KA
• Non-Radioactive
• Ultra Low capacitance (<1.5pF)
• Size: Φ8mm*6mm
• Storage and operational temperature: -40~+90°C

Applications

• MDF modules
• xDSL equipment
• RF systems
• Antenna
• Base stations
• Repeaters, Modems
• Telephone Interface, Line cards
• Data communication equipment
• Line test equipment
• Power supplies
• Surge protectors, Alarm systems