Gas Discharge Tube: GQF Series SMD 3-Electrodes Φ5.0 x T7.2 mm Features 1. RoHS & HF compliant 2. Rugged ceramic-metal construction 3. DC spark-over voltage: 75~800V 4. Low capacitance 5. Agency recognition :UL / cUL 6. Operating temperature : -40℃ ~ +85℃ Storage temperature: -40℃ ~ +115℃ Recommended Applications 1. Cable Modem 2. xDSL 3. Set-Top Box 4. TV sets 5. Power supplier 6. Consumer electronics Part Number Code G Q F 3 R 0 7 5 M R M 1 2 3 4 5 6 7 8 9 10 11 Electrode Number Product Code G 3R THINKING Gas Discharge Tube Lead Wire Style 3 Electrodes Size QF Φ5.0 x 7.2 mm THINKING ELECTRONIC INDUSTRIAL Co., LTD. All specification are subject to change without notice. M DC Spark-over Voltage 075 230 11B No Lead 12 Internal Control Code Packaging R 13 Reel Taping Type M 75V 230V 1100V 42 SMD Round Type www.thinking.com.tw 2014.08 Gas Discharge Tube: GQF Series SMD 3-Electrodes Φ5.0 x T7.2 mm Characteristics DC Spark-over Voltage Part No. Max. Impulse Discharge Current (8/20μs) Max. Impulse Breakdown Voltage 100V/S 100V/μs 1KV/μs (V) (V) (V) GQF3R075MRM 75±20% 600 700 GQF3R090MRM 90±20% 500 600 GQF3R120 MRM 120±20% 500 600 GQF3R150MRM 150±20% 500 GQF3R200MRM 200±20% GQF3R230MRM 1 time Impulse Life (10/1000μs) Normal Alternating Discharge Current DC Holdover Voltage 200A 50Hz, 1Sec <150ms (Times) (A) (V) 10 times (KA) Minimum Insulation Resistance Maximum Capacitance (1MHz) (GΩ) (pF) Safety Approvals UL 1449 /cUL UL 497B 52 √ 52 √ 80 √ 600 80 √ 600 700 135 √ 230±20% 600 700 135 √ GQF3R250MRM 250±20% 600 700 GQF3R350MRM 350±20% 650 750 GQF3R400MRM 400±20% 700 GQF3R420MRM 420±20% GQF3R470MRM 470±20% GQF3R600MRM GQF3R800MRM 10 5 5 300 15 10 135 10 1 2 √ 135 √ 800 135 √ 700 800 135 √ 800 900 135 √ 600±20% 900 1000 135 √ 800±20% 1150 1400 10 5 5 √ 135 Note1: UL 497B File No: E245070, UL 1449 3rd File No:E314979 Note 2: Insulation resistance test conditions: DC Spark-over Voltage DC Measuring Voltage 75-90V 50V 120-400V 100V 420-800V 250V Dimension Recommended Pad Size (Unit: mm) (Unit: mm) 8.2 7.2±0.3 3.3 5.0±0.1 5.0±0.1 0.4 1.5 5.6 1.6 0.4 THINKING ELECTRONIC INDUSTRIAL Co., LTD. All specification are subject to change without notice. 43 www.thinking.com.tw 2014.08 Gas Discharge Tube: GQF Series SMD 3-Electrodes Φ5.0 x T7.2 mm Marking Example: Electrode Number Product Code ∆ GQF □ □ XXX Size 3R230 DC Spark-over Voltage Packaging Taping 330±4.0 P0 >1.5 typ. E D F W 100 typ. t P K 18 typ. Quantity: 900pcs per reel (13”) Unit: mm ITEM Spec. P 12.0 P0 4.0 W 16.0 F 7.5 E 1.75 D Φ1.55 K 5.5 t 0.5 Tolerance ±0.1 ±0.1 ±0.3 ±0.1 ±0.1 ±0.05 ±0.1 ±0.05 Warehouse Storage Conditions of Products Storage Conditions: 1. Storage Temperature: -10℃~+40℃ 2. Relative Humidity: ≦75%RH 3. Keep away from corrosive atmosphere and sunlight. Period of Storage: 1 year THINKING ELECTRONIC INDUSTRIAL Co., LTD. All specification are subject to change without notice. 44 www.thinking.com.tw 2014.08