Gas Discharge Tube： ：GQF Series SMD 3-Electrodes Φ5*7.2 mm Symmetrical Type Features 1. RoHS compliant 2. Rugged ceramic-metal construction 3. DC spark-over voltage: 230~1100V 4. Low capacitance 5. Agency recognition: UL/cUL Recommended Applications 1. Data transmission lines 2. Communication lines 3. CATV system 4. Power distribution system 5. Power supplier 6. Test equipment 7. Instrumentation circuits Part Number Code Product Code G G Q F 3 R 0 7 5 N B W 1 2 3 4 5 6 7 8 9 10 11 Electrode Number 3R THINKING Gas Discharge Tube Lead Wire Style 3 Electrodes N No Lead Packaging B T R Type Series (size) QF Φ5.0*T7.2 THINKING ELECTRONIC INDUSTRIAL Co., LTD. All specification are subject to change without notice. 12 Bulk Ammo Taping Reel Taping DC Spark-over Voltage 070 230 600 14B 25B 13 Internal Control Code Product Type W 70V 230V 600V 1400V 2500V 1 SMD Symmetrical Type www.thinking.com.tw 2010.09 Gas Discharge Tube： ：GQF Series SMD 3-Electrodes Φ5*7.2 mm Symmetrical Type Characteristics Max. DC Spark-over Voltage Max. Impulse Breakdown Voltage Impulse Discharge Current (8/20µs) Type Impulse Discharge Life Nom. AC Discharge Current DC Holdover Voltage 50Hz, 1S <150ms (10/1000µs) 1 Time 10 Times Maximum Capacitance (1MHz) (GΩ) (pF) Safety approvals (100V/S) 100V/ µs 1KV/ µs (V) (V) (V) GQF3R230NRW 230±20% 600 700 10 5 5 20 135 √ GQF3R250NRW 250±20% 600 700 10 5 5 20 135 √ GQF3R350NRW 350±20% 650 750 10 5 5 20 135 √ GQF3R400NRW 400±20% 700 800 10 5 5 20 135 √ GQF3R420NRW 420±20% 700 800 10 5 5 20 135 GQF3R470NRW 470±20% 800 900 10 5 5 20 135 √ GQF3R600NRW 600±20% 900 1000 10 5 5 20 135 √ GQF3R800NRW 800±20% 1150 1400 10 5 5 20 135 √ GQF3R11BNRW 1100±20% 1450 1750 10 5 5 20 135 √ (KA) 200A Times 300 SINGLE 9 CYCLES Minimum Insulation Resistance (A) (V) 1 UL 1449 UL 497B √ 2 Note 1: UL / 497B→ File No. E245070 , UL / 1449 3rd→ File No. E314979 Note 2: Insulation resistance test conditions: DC Breakdown Voltage DC Measuring Voltage 145-400V 100V 420-800V 250V 1000-2000V 500V Note 3: DC Breakdown Voltage @ 100V/us for L1 / lL2 to ground and L1 to L2 Note 4: Impulse Breakdown Voltage @ 100V/us and 1000V/us for L1 / L2 to ground Dimension 5.0±0.1 5.0±0.1 7.2±0.3 0.4 1.5 0.4 THINKING ELECTRONIC INDUSTRIAL Co., LTD. All specification are subject to change without notice. 2 www.thinking.com.tw 2010.09 Gas Discharge Tube： ：GQF Series SMD 3-Electrodes Φ5*7.2 mm Symmetrical Type Marking GQF 3R230W Packaging Taping P0 D E F W t P K Quantity： ： 900pcs per reel (13” ”) Unit: mm ITEM P P0 W F E D K t Spec. 12.0 4.0 16.0 7.5 1.75 Φ1.55 5.5 0.5 Tol. ±0.1 ±0.1 ±0.3 ±0.1 ±0.1 ±0.05 ±0.1 ±0.05 330 ± 4.0 >1.5 100 typ. 18typ. THINKING ELECTRONIC INDUSTRIAL Co., LTD. All specification are subject to change without notice. 3 www.thinking.com.tw 2010.09 Gas Discharge Tube： ：GQF Series SMD 3-Electrodes Φ5*7.2 mm Symmetrical Type Storage Conditions of GDT (I) Storage conditions: 1. Storage Temperature: -10℃ ~ +40℃. 2. Relative humidity: ≦75%RH. 3. Gas discharge tube must be kept away from sunlight and stored in a non-corrosive atmosphere. (II) Shelf life: 1 year THINKING ELECTRONIC INDUSTRIAL Co., LTD. All specification are subject to change without notice. 4 www.thinking.com.tw 2010.09