3RA-5-SS Two Square Electrodes GDT Gas Discharge Tube 75V-600V DC Spark-Over Voltage For Consumer Electronics
Description of 3RA-5-SS Two Square Electrodes GDT Gas Discharge Tube
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. 3RA-5-SS Gas Discharge Tubes (GDT) series has a surge rating of 5kA, 8/20μs.Offered in a Squared Surface Mount package, which helps to make pick and place on PCB process easier.
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.
3RA-5-SS Gas Discharge Tube (GDT) series are specifically designed for protection of electrical, multimedia, and communication equipment against over voltage transients in surface mount assembly applications.
Features of 3RA-5-SS Two Square Electrodes GDT Gas Discharge Tube
• Excellent response to fast rising transients
• Stable breakdown voltage
• GHz working frequency
• 8/20μs Impulse current capability: 5KA
• Surface Mount package
• Non-Radioactive
• Ultra Low capacitance (<1pF)
• High insulation resistance
• Lead-free compliant
• RoHS and REACH compliant
• Size: 5mm*5mm*7.5mm
• Storage and operational temperature: -40~+90°C
Applications of 3RA-5-SS Two Square Electrodes GDT Gas Discharge Tube
• 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 3RA-5-SS Two Square Electrodes GDT Gas Discharge Tube
| Part Number | DC
Spark-over Voltage 1) 2) 3) @100V/S | Impulse Spark-over Voltage 3) | Insulation Resistance
4) | Capacitance @1MHz | Life Ratings |
Impulse Discharge Current
@8/20μs 5) | AC Discharge Current
@50Hz 1S 5) | Impulse Life @10/1000μS
200A 5) |
| 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 |
| 3R075A-5-SS | 75±20% | 500 | 600 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R090A-5-SS | 90±20% | 500 | 600 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R150A-5-SS | 150±20% | 500 | 600 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R200A-5-SS | 200±20% | 600 | 700 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R230A-5-SS | 230±20% | 600 | 700 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R250A-5-SS | 250±20% | 600 | 700 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R350A-5-SS | 350±20% | 800 | 900 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R400A-5-SS | 400±20% | 850 | 950 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R420A-5-SS | 420±20% | 850 | 950 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R470A-5-SS | 470±20% | 900 | 1000 | 1 | 1 | 5 | 10 | 5 | 300 |
| 3R600A-5-SS | 600±20% | 1100 | 1200 | 1 | 1 | 5 | 10 | 5 | 300 |
| Glow Voltage at 10mA ~60V |
| Arc Voltage at 1A........................................................................................ ~10V |
| Glow to Arc transition Current ~0.5A |
| Weight…………………………………………………………………….......... ~0.68g |
| Operation and storage temperature…………………………………............ -40~+90°C |
| Climatic category (IEC 60068-1)……………………………………….......... 40/90/21 |
| Symbol | Millimeters | Inches |
| A | 5.0±0.2 | 0.197±0.008 |
| B | 5.0±0.2 | 0.197±0.008 |
| C | 7.5±0.3 | 0.295±0.012 |
| D | Ф5.0±0.2 | Ф0.197±0.008 |
| E | Ф4.7±0.1 | Ф0.185±0.004 |
| F | 1.5±0.1 | 0.059±0.004 |
| G | 0.4±0.1 | 0.016±0.004 |
| H | 0.4±0.1 | 0.016±0.004 |
| X | 1.6 | 0.063 |
| X1 | 2.8 | 0.110 |
| X2 | 7.4 | 0.291 |
| Y | 5.0 | 0.197 |
| Symbol | Millimeters | Inches |
| W | 16±0.3 | 0.630±0.012 |
| A0 | 5.4±0.1 | 0.213±0.004 |
| B0 | 8.4±0.1 | 0.331±0.004 |
| K0 | 5.3±0.1 | 0.209±0.004 |
| P | 12±0.1 | 0.472±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 | 0.4±0.1 | 0.016±0.004 |
| 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 |
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3RA-5-SS Two Square Electrodes GDT Gas Discharge Tube 75V-600V DC Spark-Over Voltage For Consumer Electronics Images
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