GDT陶瓷气体放电管
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GDT陶瓷气体放电管
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一、GDT的简介 陶瓷气体放电管,简称GDT,是防雷保护设备中应用最广泛的开关器件，浪涌电流大，可达1KA-150KA,绝缘电阻极高，无漏流，无老化失效，无极性双向保护，静态电容极小，击穿电压分散性较大。多用在通讯线路、通讯配线架的保安单元及高频电路中作防雷保护。 二、GDT的选用技巧 1. GDT 的DC Spark-over Voltage应高出被保护电路30%以上的最大直流或连续工作电压、电路的额定标准电压和“高端"容限。 2. GDT 的lpp应大于电路瞬态浪涌电流。 |
| Part Number |
DC Spark-over Voltage @100V/S(V)
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Max Impulse Spark-over Voltage @1KV/μs(V)
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Max Surge Discharge Current @8/20μs 10times (KA）
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Insulation Resistance @DC100V (GΩ)
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Normal Alternating Discharge Current @50Hz (A)
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Max Capacitance (1MHz) (pF)
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Package
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Inner Diagram | Data sheet |
|---|---|---|---|---|---|---|---|---|---|
| 2R075SA-6 | 75±30 | 600 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R090SA-6 | 90±30 | 600 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R150SA-6 | 150±20 | 600 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R230SA-6 | 230±20 | 700 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R300SA-6 | 300±20 | 900 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R350SA-6 | 350±20 | 950 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R400SA-6 | 400±20 | 1000 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R470SA-6 | 470±20 | 1100 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R600SA-6 | 600±20 | 1300 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R800SA-6 | 800±20 | 1500 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R1000SA-6 | 1000±20 | 1900 | 5 | 1 | 5 | 1 | 6.2*4 |
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| 2R075TB-8 | 75±20% | <600 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R090TB-8 | 90±20% | <600 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R150TB-8 | 150±20% | <700 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R230TB-8 | 230±20% | <800 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R300TB-8 | 300±20% | <900 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R350TB-8 | 350±20% | <1000 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R400TB-8 | 400±20% | <1000 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R420TB-8 | 420±20% | <1200 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R470TB-8 | 470±20% | <1200 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R600TB-8 | 600±20% | <1300 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R800TB-8 | 800±20% | <1500 | 10 | 1 | 10 | 1.5 | 8*6 |
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| 2R075TD-8 | 75±20% | <600 | 20 | 1 | 20 | 1.5 | 8*6 |
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| 2R090TD-8 | 90±20% | <600 | 20 | 1 | 20 | 1.5 | 8*6 |
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| 2R150TD-8 | 150±20% | <700 | 20 | 1 | 20 | 1.5 | 8*6 |
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| 2R230TD-8 | 230±20% | <700 | 20 | 1 | 20 | 1.5 | 8*6 |
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| 2R300TD-8 | 300±20% | <800 | 20 | 1 | 20 | 1.5 | 8*6 |
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| 2R350TD-8 | 350±20% | <1000 | 20 | 1 | 20 | 1.5 | 8*6 |
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| 2R400TD-8 | 400±20% | <1000 | 20 | 1 | 20 | 1.5 | 8*6 |
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| 2R420TD-8 | 420±20% | <1200 | 20 | 1 | 20 | 1.5 | 8*6 |
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