SL1024A250RF

Gas Discharge Tubes Omega Rage RoHS Pb Greentube™ SL1024A Series Gas Plasma Arresters ® The SL1024A series offers high levels of current handling on fast rising transients created by induced Lightning disturbances. These devices are extremely robust and are able to divert pulses of 10,000A. The SL1024A also features ultra low capacitance (typically 1pf or less) making them ideal for the protection of high-speed transmission equipment. FEATURES • RoHS compliant except ‘RS’ suffix • Low insertion loss • Excellent response to fast rising transients. • Ultra low capacitance. • 10KA surge capability tested with 8/20µs pulse as defined by IEC 61000-4-5 • Available with thermal failsafe option (add ‘F’ or ‘S’ suffix to part number) Applications: • Broadband equipment. • ADSL equipment. • XDSL equipment. • Satellite and CATV equipment. • Splitters • General telecom equipment. 8 GAS DISCHARGE TUBES SL1024A xxxC a b SL1024A xxxR ø8.0+0.2 _ 3 ELECTRODE GDT a=TIP b=RING e=GROUND (centre electrode) GRAPHICAL SYMBOL ø1.0+0.2 _ SL1024A xxxRF SL1024A xxxRS ORDERING INFORMATION SL 1024 A Voltage Pin Configuration C=Core R=Leaded Failsafe Optio n F=Plastic S=Solder Mechanical Specifications: Weight: Materials: 2.7g (0.095 oz.) Electrode Base: Nickel Iron Alloy Electrode Plating: Bright Sn Body: Ceramic Littelfuse ‘LF’ marking, Voltage and date code. Red. Device Marking: 9.5 MAX e w w w. l i t t e l f u s e . c o m 341 Gas Discharge Tubes Omega Range RoHS Pb Greentube™ SL1024A Series Gas Plasma Arresters ® LITTELFUSE 3 TERMINAL ARRESTER SERIES TOTALLY NON-RADIOACTIVE, UL RECOGNIZED DC Breakover Voltage Min-Max7 @ 100V/sec DC (V) Voltage(V) 90 145 150 230 250 260 300 350 400 420 450 500 600 70-120 116-174 120-180 184-276 200-300 210-310 240-360 280-420 320-480 345-500 360-540 400-500 480-720 Max Dynamic Breakover Voltage @ 100/µs (V) 600 500 500 350 400 420 450 500 600 650 650 700 850 Max Max Repetitive Single Impulse Alternating Impulse Discharge Discharge Discharge Current Current Current1,3 (kA) (kA) (A) 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 20 20 20 20 20 20 20 20 20 20 20 20 20 Max Single Impulse Discharge Current 10/350µs5,2 (kA) 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Part Number SL1024A090 SL1024A145 SL1024A150 SL1024A230 SL1024A250 SL1024A260 SL1024A300 SL1024A350 SL1024A400 SL1024A420 SL1024A450 SL1024A500 SL1024A600 (1) Total current through center (ground) electrode, both line electrodes pulsed simultaneously; half value through each respective line terminal. (2) Applies to ‘C’ option devices mounted in a suitable connector with high pressure contacts. (3) 10 shots, A.C. 60Hz, 1 sec duration. (4) 10 shots, 8/20µS waveform (5) either end (line) electrode to center (ground) electrode (6) Meets the requirements of BT Type 14A. Addition of ‘F’ (failsafe) option meets the requirements of BT type number 14A/1. Voltage vs Time Characteristic 50 Max dynamic breakover voltage Time vs. Current for Failsafe 45 40 35 30 Voltage (V) Time (s) Hold-over voltage On-State voltage 25 20 15 10 5 0 0 1 1 line to ground both lines to ground 2 3 Current (A) 4 5 6 0 200 400 600 Time (ns) 800 1000 1200 342 w w w. l i t t e l f u s e . c o m Gas Discharge Tubes Omega Range RoHS Pb Greentube™ SL1024A Series Gas Plasma Arresters Profile for reflow soldering Profile for wave soldering 300 ® 250 225 200 Temperature ˚C 175 150 125 100 75 50 25 0 0 50 100 150 200 250 300 350 400 450 500 Time in seconds Temperature (˚C) Solder Flow Area o T 1 m ax = 266C o T 1 = 239 C 200 Tm = 179oC Forced Cooling Preheating Area 100 8 GAS DISCHARGE TUBES 10 20 Time(seconds) 30 40 Notes: T1 max T1 Tm Tam b = Maximum TabTemperature = 266oC = Flow Tempearture of Solder = 239oC = Melting Point of Solder = 179oC o = 25 C o C 1. Maximum permissible rate of temperature change = 7 / sec 2. Not for RF style devices w w w. l i t t e l f u s e . c o m 343