Gas Discharge Tube: GF4 Series SMD 2-Electrode Φ4.2 x T4/T3.5 mm Type Features 1. RoHS & HF compliant 2. SMD type series 3. DC spark-over voltage: 75~2000V 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 F 4 2 R 0 7 5 M B M 1 2 3 4 5 6 7 8 9 10 11 Product Code G Electrode Number 2R THINKING Gas Discharge Tube Lead Wire Style 2 Electrodes Size Φ4.2 × T4 mm F4 Φ4.2 × T3.5 mm for low profile type THINKING ELECTRONIC INDUSTRIAL Co., LTD. M DC Spark-over Voltage 075 230 600 14B 20B No Lead 12 Internal Control Code Packaging B Bulk R Reel Taping 13 Type 75V 230V 600V 1400V 2000V 10 M SMD Round Type L Low Profile Type www.thinking.com.tw 2014.08 Gas Discharge Tube: GF4 Series SMD 2-Electrode Φ4.2 x T4/T3.5 mm Type Characteristics Maximum Impulse Breakdown Voltage Max. Impulse Discharge Current (8/20μs) 100V/S 100V/μs 1KV/μs 1 time (V) (V) (V) GF42R075MRM 75±20% 700 800 52 √ GF42R090MRM/L 90±20% 700 800 52 √ GF42R145MRM/L 145±20% 700 800 52 √ GF42R230MRM/L 230±20% 600 700 80 √ GF42R250MRM/L 250±20% 600 700 80 √ GF42R300MRM/L 300±20% 600 700 150 √ GF42R350MRM/L 350±20% 650 800 150 √ GF42R400MRM/L 400±20% 700 800 150 GF42R470MRM/L 470±20% 800 900 150 GF42R600MRM/L 600±20% 900 1000 150 DC Spark-over Voltage Part No. Impulse Life (10/1000μs) Normal Alternating Discharge Current DC Holdover Voltage 100A 50Hz 1Sec <150ms (Times) (A) (V) 10 times (KA) 5 3 300 3 Minimum Insulation Resistance Maximum Capacitance (1MHz) (GΩ) (pF) 1 Safety Approvals UL 1449/ cUL √ 0.5 √ √ GF42R800MRM 800±20% 1300 1400 150 √ GF42R10BMRM 1000±20% 1500 1600 150 √ GF42R12BMRM 1200±20% 1700 1800 150 √ GF42R15BMRM 1500±20% 2000 2100 150 √ GF42R18BMRM 1800±20% 2500 2600 150 √ GF42R20BMRM 2000±20% 2700 2800 150 √ 3 2 100 2 UL 497B Note1: L is for low profile type Note2: UL 497B File No: E245070, UL 1449 3rd File No: E314979 Note3: Insulation resistance test condition: DC Spark-over Voltage DC Measuring Voltage 70-90V 50V 120-400V 100V 470-800V 250V 1000-2000V 500V THINKING ELECTRONIC INDUSTRIAL Co., LTD. 11 www.thinking.com.tw 2014.08 Gas Discharge Tube: GF4 Series SMD 2-Electrode Φ4.2 x T4/T3.5 mm Type Dimension (Unit: mm) Low Profile Type 3.5 ± 0.2 3.5 ± 0.2 4.2 ± 0.2 4.2 ± 0.2 Recommended Pad Size (Unit: mm) 3.5 5.0 1.3 Marking 75 Example:GF42R075MRM THINKING ELECTRONIC INDUSTRIAL Co., LTD. 12 www.thinking.com.tw 2014.08 Gas Discharge Tube: GF4 Series SMD 2-Electrode Φ4.2 x T4/T3.5 mm Type Packaging Taping P0 E D F W t P K For Φ4.2 x T4 mm type : Quantity: 900pcs per reel (13”) Item P Spec. Tolerance (Unit: mm) P0 W F E D 12.0 4.0 ±0.1 ±0.1 K t 16.0 7.5 1.75 Φ1.55 4.6 0.5 ±0.3 ±0.1 ±0.1 ±0.05 +0.2,-0.1 ±0.05 P0 W F E D K For Φ4.2 x T3.5 mm low profile type : Quantity: 2,000pcs per reel (13”) Item P (Unit: mm) t Spec. 8.0 4.0 16.0 7.5 1.75 Φ1.55 3.9 0.4 Tolerance ±0.1 ±0.1 ±0.3 ±0.1 ±0.1 ±0.05 ±0.1 ±0.05 >1.5 typ. 330±4.0 100 typ. 18 typ. 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. 13 www.thinking.com.tw 2014.08