3RD-8S Gas Discharge Tube Arresters 3 Poles Electrodes 75V-600V 20KA 8mmX10mm SMD Type GDT

Description of 3RD-8S Gas Discharge Tube

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 of 3 Poles Electrodes Gas Discharge Tube

• 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)
• High insulation resistance
• Lead-free compliant
• RoHS and REACH compliant
• Size: Ф8mm*10mm
• Storage and operational temperature: -40~+90°C

Applications of 75V-600V Gas Discharge Tube Arresters

• Communication equipment
• CATV equipment
• Data lines
• Power supplies
• Telecom SLIC protection
• Broadband equipment
• ADSL equipment, including ADSL2+
• XDSL equipment
• Satellite and CATV equipment
• Test equipment
• Consumer electronics

Electrical Characteristics of 20KA GDT Gas Discharge Tube

Soldering Parameters - Reflow Soldering (Surface Mount Devices)

Reflow Condition

Pb - Free assembly

Pre Heat

-Temperature Min (Ts(min))

150°C

-Temperature Max (Ts(max))

200°C

- Time (min to max) (ts)

60 -180 Seconds

Average ramp up rate ( Liquids Temp TL) to peak

3°C/second max

TS(max) to TL - Ramp-up Rate

5°C/second max

Reflow

- Temperature (TL) (Liquids)

217°C

- Time (min to max) (ts)

60 -150 Seconds

Peak Temperature (TP)

260 +0/-5°C

Time within 5°C of actual peak Temperature (tp)

10 - 30 Seconds

Ramp-down Rate

6°C/second max

Time 25°C to peak Temperature (TP)

8 minutes Max

Do not exceed

260°C