2RK250M-4

2R-4 SERIES Gas Discharge Tube (GDT) Data Sheet Features ■ Provide ultra-fast response to surge voltage from slow-rising ■ ■ ■ ■ surge of 100V/s to rapid-rising surge of 1KV/μs Stable breakdown voltage High insulation resistance Low capacitance (≤1pF) High holdover voltage ■ ■ ■ ■ ■ ■ Large absorbing transient current capability Micro-Gap Design Size: 4.2mm*4.0mm Storage and operating temperature: -40℃ ~ +85℃ Meets MSL level 1, per J-STD-020 Safety certification: E244458 & E327997 Applications ■ ■ ■ ■ Repeaters, Modems Telephone Interface, Line cards Data communication equipment Line test equipment Part Number Code 2 K R M Lead Type M: SMD Electrical Characteristics K：3KA Electrode Numbers 2R: 2 Electrodes 4 DC Spark-over Voltage Dimensions 4: 4.2mm×4.0mm Marking 090 : Device Marking Code YXXX : Date Code Revision: GDT-2R-4 SERIES-001(A2) 2/6 http://brightking.pulseelectronics.com 2R-4 SERIES Dimensions Dimension (mm) Symbol 3.5 B 5.0 D D d 1.3 T Recommended Pad Size Spec. Tolerance D 4.2 ±0.5 T 4.0 ±0.4 B 0.4 ±0.1 d 3.9 ±0.1 Electrical Characteristics Part Number DC Spark-over Voltage Maximum Impulse Spark-over Voltage Nominal Impulse Discharge Current Alternating Discharge Current Impulse Life 100V/s 1000V/μs 8/20μs 10times 50Hz,1sec 10/1000μs 100A Test Voltage Minimum Insulation Resistance Maximum Capacitance 1MHz Device Marking Code (GΩ) (V) (V) (KA) (A) (times) DC(V) 2RK075M-4 75±20% 800 3 3 300 25 1 1.0 075 2RK090M-4 90±20% 800 3 3 300 50 1 1.0 090 2RK145M-4 145±20% 800 3 3 300 100 1 1.0 145 2RK230M-4 230±20% 700 3 3 300 100 1 1.0 230 2RK250M-4 250±20% 700 3 3 300 100 1 1.0 250 2RK300M-4 300±20% 800 3 3 300 100 1 1.0 300 2RK350M-4 350±20% 850 3 3 300 100 1 1.0 350 2RK400M-4 400±20% 900 3 3 300 100 1 1.0 400 2RK470M-4 470±20% 1000 3 3 300 250 1 1.0 470 2RK600M-4 600±20% 1200 3 3 300 250 1 1.0 600 2RK800M-4 800±20% 1400 3 3 300 250 1 1.0 800 2RK1000M-4 1000±20% 1600 3 3 300 500 1 1.0 1000 2RK1200M-4 1200±20% 1900 3 3 300 500 1 1.0 1200 Revision: GDT-2R-4 SERIES-001(A2) 3/6 (pF) http://brightking.pulseelectronics.com 2R-4 SERIES Electrical Ratings Items DC Spark-over Voltage Test Condition/Description Requirement The voltage is measured with voltage ramp dv/dt=100V/s. Maximum Impulse The maximum impulse spark-over voltage is measured with voltage ramp Spark-over Voltage dv/dt=1000V/μs. Maximum 8/20μs surge current that can be applied between two electrodes, 5 positive and 5 negative surges, with 3 minutes interval time, without causing the DC spark-over voltage to change more than 25% from its initial value. Crest value 100 90 Current (%) Impulse Discharge Current To meet 50 the specified 20µs 10 0 value 8µs Time Impulse Width Rated RMS value of AC current at 50Hz, 1 sec. for 10 times with interval Alternating Discharge Current time 3 min. DC spark-over voltage shall not change more than ±25% from its initial value. 8 IR＞10 ohms (-20%, +30% for 70~90V). Insulation Resistance Capacitance The resistance of gas tube shall be measured between two electrodes. The capacitance of gas tube shall be measured between two electrodes. Test frequency: 1MHz Revision: GDT-2R-4 SERIES-001(A2) 4/6 http://brightking.pulseelectronics.com 2R-4 SERIES Recommended Soldering Conditions Reflow Soldering Critical Zone TL to TP tP TP Ramp-up TL tL Temperature TS max TS min Ramp-down tS Preheat 25 t 25℃ to Peak Time Profile Feature Pb-Free Assembly 3℃/second max. Average ramp-up rate (TL to TP) Preheat -Temperature Min (TS min) 150℃ -Temperature Max (TS max) 200℃ -Time (min to max) (ts) 60-180 seconds TS max to TL 3℃/second max. -Ramp-up Rate Time maintained above: 217℃ -Temperature (TL) -Time (tL) 60-150 seconds 260℃ Peak Temperature (TP) Time within 5℃ of actual Peak Temperature (tP) 6℃/second max. Ramp-down Rate Time 25℃ to Peak Temperature Revision: GDT-2R-4 SERIES-001(A2) 20-40 seconds 8 minutes max. 5/6 http://brightking.pulseelectronics.com 2R-4 SERIES Packaging Tape Dimension (mm) Symbol Reel Spec. Tolerance W 16.00 ±0.20 P0 4.00 ±0.10 P1 12.00 ±0.20 P2 2.00 ±0.10 D0 1.55 ±0.05 E 1.75 ±0.10 F 7.50 ±0.10 A0 4.27 ±0.10 K0 5.20 ±0.10 B0 4.45 ±0.10 t 0.50 ±0.10 D 330.00 ±2.00 d 13.00 ±0.50 L 20.00 ±2.00 t 2.00 ±0.20 t D d Quantity: 900pcs L Revision: GDT-2R-4 SERIES-001(A2) 6/6 http://brightking.pulseelectronics.com