2RA-8T2 Series Gas Discharge Tubes GDT 5KA 3.0pF Surge Protector
Ceramic Gas Tube Arrester
Description
Using the technical requirements of the leading industry, we have
designed a super thin gas discharge tube, which is mainly used in
the product's volume requirements and space constraints.
Gas discharge tubes (GDT) use noble gasses enclosed in ceramic
tubes to provide an alternate circuit path for voltage spikes. The
ceramic envelope and with nickel connectors allow for high loads.
2RA-8T Gas Discharge Tubes (GDT) series has a surge rating of 5kA,
8/20μs. This GDT series is perfectly suited for broadband equipment
applications. The GDT’s low off-state capacitance is compatible
with high bandwidth applications and this capacitance loading value
does not vary if the voltage
across the GDT changes.
Features
Excellent response to fast rising transients
Stable breakdown voltage
GHz working frequency
8/20μs Impulse current capability: 5KA
Non-Radioactive
Ultra Low capacitance (<3.0pF)
Lead-free compliant
RoHS and REACH compliant
Size: Ф8mm*2mm
Storage and operational temperature: -40~+90°C
Applications
Telecom CPE
Communication equipment
Surge Protective Devices
High density PCB assemblies
Part Number Code
Electrical Characteristics
| Part Number | DC
Spark-over Voltage 1) 2) @100V/S | Impulse Spark-over Voltage | Insulation Resistance
3) | Capacitance @1MHz | Life Ratings |
| Impulse Discharge Current @8/20μS | AC Discharge Current @50Hz 1S | Impulse Life @10/1000μS 100A |
| 100V/μS | 1KV/μS |
| Max | Max | Min | Max | Nominal
±5 times | Max 1 time | Nominal 5 times | Min |
| V | V | V | GΩ | pF | KA | KA | A | Times |
| 2R090SA-8T2 | 2R090TA-8T2 | 90±20% | 500 | 600 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R150SA-8T2 | 2R150TA-8T2 | 150±20% | 500 | 600 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R230SA-8T2 | 2R230TA-8T2 | 230±20% | 600 | 700 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R250SA-8T2 | 2R250TA-8T2 | 250±20% | 600 | 700 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R300SA-8T2 | 2R300TA-8T2 | 300±20% | 750 | 850 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R350SA-8T2 | 2R350TA-8T2 | 350±20% | 800 | 900 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R400SA-8T2 | 2R400TA-8T2 | 400±20% | 850 | 950 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R420SA-8T2 | 2R420TA-8T2 | 420±20% | 850 | 950 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R470SA-8T2 | 2R470TA-8T2 | 470±20% | 900 | 1000 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R600SA-8T2 | 2R600TA-8T2 | 600±20% | 1000 | 1200 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R800SA-8T2 | 2R800TA-8T2 | 800±20% | 1400 | 1600 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| 2R1000SA-8T2 | 2R1000TA-8T2 | 1000±20% | 1600 | 1800 | 1 | 3.0 | 5 | 10 | 10 | 300 |
| Glow Voltage at
10mA........................................................................
~60V |
| Arc Voltage at 1A ~10V |
| Glow to Arc transition Current………………………………………...... ~1A |
| Weight ~0.42g |
| Operation and storage temperature……………………………………. -40~+90°C |
| Climatic category (IEC 60068-1) 40/90/21 |
| Surface treatment Matte-tin plated |
1) At delivery AQL 0.65 level II, DIN ISO 2859
2) In ionized mode
3) Insulation Resistance Measuring Voltage:
90V~150V at DC 50V
Other at DC 100V
Terms in accordance with ITU-T Rec. K.12, IEC 61643-311, GB/T 9043.
Dimensions (Unit: mm/inch)
Taping and Reel Specifications
Packaging Quantity
1500 PCS per reel (13”)
3 reels per inner box
4500 PCS per inner box
| Symbol | Millimeters | Inches |
| W | 16±0.3 | 0.630±0.012 |
| A0 | 10.9±0.1 | 0.429±0.004 |
| B0 | 8.4±0.1 | 0.331±0.004 |
| B1 | 3.0±0.1 | 0.118±0.004 |
| K0 | 2.5±0.1 | 0.098±0.004 |
| P | 16±0.1 | 0.630±0.004 |
| F | 7.5±0.1 | 0.295±0.004 |
| E | 1.75±0.1 | 0.069±0.004 |
| D | 1.5+0.1/-0.0 | 0.059+0.004/-0.0 |
| P0 | 4±0.1 | 0.157±0.004 |
| P2 | 2±0.1 | 0.079±0.004 |
| T | 0.3±0.05 | 0.012±0.002 |
| D0 | 13.3±0.15 | 0.524±0.006 |
| D1 | 330±2` | 12.992±0.079 |
| D2 | 100+1/-2 | 3.937+0.039/-0.079 |
| W1 | 16.5±0.4 | 0.65±0.016 |
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 |
