SL1021A400

Gas Discharge Tubes High Performance Beta Range RoHS Pb Greentube™ SL1021A Series Gas Plasma Arresters ® The SL1021A series offers high levels of performance on fast rising transients in the domain of 100V/µS to 1KV/µS, which are those most likely from induced Lightning disturbances. The SL1021A series also features ultra low capacitance (typically 1pF or less) and optimised internal geometry which provides low insertion loss at high frequencies, so are ideal for the protection of broadband equipment. These devices are extremely robust and are able to divert a 10,000Amp pulse without destruction. 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 • 20,000 A single shot surge capability tested with 8/20µs 8 GAS DISCHARGE TUBES pulse as defined by IEC 61000-4-5 • Available with thermal failsafe option (add ‘F’ or ‘S’ suffix to part number) • ROHS Compliant Applications: • Broadband equipment. • ADSL equipment. • XDSL equipment. • Satellite and CATV equipment. • General telecom equipment. SL1021A xxxC SL1021A xxxR All dimensions in mm a b ø8.0+0.2 _ e 3 ELECTRODE GDT a=TIP b=RING e=GROUND (centre electrode) GRAPHICAL SYMBOL SL1021A xxxRF SL1021A xxxRS ø1.0+0.2 _ ORDERING INFORMATION SL 1021 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. 335 Device Marking: w w w. l i t t e l f u s e . c o m 9.5 MAX Gas Discharge Tubes High Performance Beta Range RoHS Pb Greentube™ SL1021A Series Gas Plasma Arresters ® LITTELFUSE 3 TERMINAL ARRESTER SERIES TOTALLY NON-RADIOACTIVE, UL RECOGNIZED DC Breakover Voltage DC Voltage @ 100V/sec Min-Max (V) (V) 145 150 200 230 250 260 300 350 400 420 450 500 600 116-174 120-180 150-250 184-276 200-300 210-310 240-360 280-420 320-480 345-500 360-540 400-500 480-720 DC Dynamic Breakover Voltage @ 100/µs (V) 500 500 350 350 400 420 450 500 550 600 650 700 850 Max Single Max Max Single Max Single Repetitive Impulse Impulse Alternating Impulse Discharge Discharge Impulse Discharge Discharge Current Current Discharge Current1,3 Current8 10/350µs5 Life Test 8/20µs5 Current Rating2 (A) (kA) (kA) 8/20µs1,4 (kA) (kA) 100 shots 10 40 20 10 2.5 100 shots 10 40 20 10 2.5 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 40 40 40 40 40 40 40 40 40 40 40 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 100 shots 100 shots 100 shots 100 shots 100 shots 100 shots 100 shots 100 shots 100 shots 100 shots 100 shots Part Number SL1021A145 SL1021A150 SL1021A2006 SL1021A230 SL1021A250 SL1021A2607 SL1021A300 SL1021A350 SL1021A400 SL1021A420 SL1021A450 SL1021A500 SL1021A600 (1) Total current through center (ground) electrode, both line electrodes pulsed simultaneously; half value through each respective line terminal. (2) 100 amps, 10/1000µS pulse (does not apply to SL1021A200) (3) 10 shots, A.C. 60Hz, 1 sec duration. (4) 10 shots, 8/20µS waveform (5) either end (line) electrode to centre (ground) electrode (6) Meets the requirements of BT Type 21A. (7) 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) 25 (s) Hold-over voltage On-State voltage 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 336 w w w. l i t t e l f u s e . c o m Gas Discharge Tubes High Performance Beta Range RoHS Pb Greentube™ SL1021A Series Gas Plasma Arresters Profile for reflow soldering Profile for wave soldering 300 ® 250 225 200 Temperature ˚C 175 150 125 100 Temperature (˚C) Solder Flow Area o T 1 m ax = 266C o T 1 = 239 C 200 75 50 25 0 0 50 100 150 200 250 300 350 400 450 500 Time in seconds 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 Maximum permissible rate of temperature change = 7 / sec w w w. l i t t e l f u s e . c o m 337 Gas Discharge Tubes High Performance Beta Range RoHS Pb Greentube™ SL1021B Series Gas Plasma Arresters ® The SL1021B series offers high levels of performance on fast rising transients in the domain of 100V/µS to 1KV/µS, which are those most likely from induced Lightning disturbances. The SL1021B series also features ultra low capacitance (typically 1pF or less) and optimised internal geometry which provides low insertion loss at high frequencies, so are ideal for the protection of broadband equipment. These devices are extremely robust and are able to divert a 20,000Amp pulse without destruction. 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 6100-4-5 • 20,000 A single shot surge capability tested with 8/20µs pulse as defined by IEC 6100-4-5 • Available with thermal failsafe option (add ‘F’ or ‘S’ suffix to part number) Applications: • Broadband equipment. • ADSL equipment. • XDSL equipment. • Satellite and CATV equipment. • General telecom equipment. SL1021A xxxC SL1021B xxxR All dimensions in mm a b ø8.0+0.2 _ 3 ELECTRODE GDT a=TIP b=RING e=GROUND (centre electrode) GRAPHICAL SYMBOL SL1021B xxxRF SL1021B xxxRS ø1.0+0.2 _ ORDERING INFORMATION SL 1021 B Voltage Pin Configuration C=Core R=Leaded Failsafe Optio n F=Plastic S=Solder 338 Mechanical Specifications: Weight: Materials: 0.63g (0.022 oz.) Electrode Base: Nickel Iron Alloy Electrode Plating: Bright Sn Body: Ceramic Littelfuse ‘LF’ marking, Voltage and date code. Blue. Device Marking: w w w. l i t t e l f u s e . c o m 9.5 MAX e