Gas Discharge Tubes High Performance Beta Range RoHS Greentube™ SL1021A Series Gas Plasma Arresters Pb ® 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 8 • 20,000 A single shot surge capability tested with 8/20µs 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. SL1021A xxxC • ADSL equipment. SL1021A xxxR • XDSL equipment. • Satellite and CATV equipment. All dimensions in mm • General telecom equipment. a b 9.5 MAX ø8.0+ _0.2 e 3 ELECTRODE GDT a=TIP b=RING e=GROUND (centre electrode) GRAPHICAL SYMBOL ø1.0+ _0.2 SL1021A xxxRF SL1021A xxxRS ORDERING INFORMATION SL 1021 A Voltage Mechanical Specifications: Pin Configuration C=Core R=Leaded Failsafe Optio n F=Plastic S=Solder Weight: Materials: Device Marking: w w w. l i t t e l f u s e . c o m 2.7g (0.095 oz.) Electrode Base: Nickel Iron Alloy Electrode Plating: Bright Sn Body: Ceramic Littelfuse ‘LF’ marking, Voltage and date code. 335 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) Part Number 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 DC Dynamic Breakover Voltage @ 100/µs (V) SL1021A145 145 116-174 500 SL1021A150 150 120-180 500 SL1021A2006 200 150-250 350 10 10 20 40 2.5 100 shots SL1021A230 230 184-276 350 10 10 20 40 2.5 100 shots SL1021A250 250 200-300 400 10 10 20 40 2.5 100 shots SL1021A2607 260 210-310 420 10 10 20 40 2.5 100 shots SL1021A300 300 240-360 450 10 10 20 40 2.5 100 shots SL1021A350 350 280-420 500 10 10 20 40 2.5 100 shots SL1021A400 400 320-480 550 10 10 20 40 2.5 100 shots SL1021A420 420 345-500 600 10 10 20 40 2.5 100 shots SL1021A450 450 360-540 650 10 10 20 40 2.5 100 shots SL1021A500 500 400-500 700 10 10 20 40 2.5 100 shots SL1021A600 600 480-720 850 10 10 20 40 2.5 100 shots (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 Time vs. Current for Failsafe 50 Max dynamic breakover voltage 45 40 35 Voltage (V) 30 (s) 25 20 15 Hold-over voltage 10 5 On-State voltage 0 0 0 200 400 600 Time (ns) 336 800 1000 1200 1 1 line to ground both lines to ground w w w. l i t t e l f u s e . c o m 2 3 Current (A) 4 5 6 Gas Discharge Tubes High Performance Beta Range RoHS Pb Greentube™ SL1021A Series Gas Plasma Arresters Profile for reflow soldering ® Profile for wave soldering 250 300 225 T 1 max = 266oC Solder Flow Area 175 150 T 1 = 239oC 125 100 200 75 Temperature (˚C) 50 25 0 0 50 100 150 200 250 300 Time in seconds 350 400 450 Tm = 179oC Forced Cooling Preheating Area 500 100 8 10 20 30 40 Time(seconds) Notes: T1 max T1 Tm Tamb = Maximum TabTemperature = 266oC = Flow Tempearture of Solder = 239oC = Melting Point of Solder = 179oC o = 25 C o Maximum permissible rate of temperature change = 7C / sec w w w. l i t t e l f u s e . c o m 337 GAS DISCHARGE TUBES Temperature ˚C 200 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. SL1021A xxxC • Satellite and CATV equipment. SL1021B xxxR • General telecom equipment. All dimensions in mm a b ø8.0+ _0.2 9.5 MAX e 3 ELECTRODE GDT a=TIP b=RING e=GROUND (centre electrode) GRAPHICAL SYMBOL ø1.0+ _0.2 SL1021B xxxRF SL1021B xxxRS ORDERING INFORMATION SL 1021 B Mechanical Specifications: Voltage Weight: Materials: Pin Configuration C=Core R=Leaded Failsafe Optio n F=Plastic S=Solder 338 Device Marking: w w w. l i t t e l f u s e . c o m 0.63g (0.022 oz.) Electrode Base: Nickel Iron Alloy Electrode Plating: Bright Sn Body: Ceramic Littelfuse ‘LF’ marking, Voltage and date code. Blue.