Gas Discharge Tubes High Performance Alpha Range RoHS Greentube™ SL1122A Series Hybrid Gas Plasma Arresters ® The SL1122 series Hybrid features a high performance Alpha Gas Plasma Tube in conjunction with a high speed Silicon Avalanche Diode ( SAD ). These devices are matched so that High speed pulses are initially clamped by the SAD, then as the current rises, the transient energy is switched through the Gas Tube. The Hybrid offers high levels of performance on fast rising transients in the domain of 100V/µS to 10 KV/µS, so eliminates the dv/dt switching delay normally exhibited by standard GDT’s. These devices are extremely robust and are able to divert a 10,000Amp pulse without destruction, so are ideal for central office ( telephone exchange ) protection. FEATURES • RoHs Compliant • Excellent response to fast rising transients. • Flat response up to 10KV/µS. • 10KA surge capability tested with 8/20µS pulse as defined by IEC 61000-4-5 8 GAS DISCHARGE TUBES • SAD ensures short circuit failure mode in the event of severe transient overload. • Thermal failsafe. Applications: • MDF protection • Alarm panels. • ADSL equipment. • XDSL equipment. • General Telecom Equipment a b e 3 ELECTRODE GDT a=TIP b=RING e=GROUND (centre electrode) All dimensions in mm GRAPHICAL SYMBOL Mechanical Specifications: ORDERING INFORMATION Weight: Materials: SL 1122 A Voltage 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’ logo, voltage and date code 347 Gas Discharge Tubes High Performance Alpha Range RoHS Greentube™ SL1122A Series Hybrid Gas Plasma Arresters ® LITTELFUSE 3 TERMINAL ARRESTER SERIES TOTALLY NON-RADIOACTIVE, UL BREAKER VOLTAGE DC Part Number Voltage (V) Max Max Repetitive Repetitive Max Alternating Insulation Max Dynamic Nominal Impulse Impulse Breakover Holdover On-State 9 Breakover Discharge Capacitance 8 1,2,4 3 Resistance Discharge Discharge 4,6 Voltage Voltage Voltage @ Voltage @ Current (pF) 1 kV/us (Vbr) Current4,7 (kA) Current5,7 (kA) (V) (V) (Ω) (A) 1A (V) SL1122A090 90 70-120 SL1122A200 200 140-250 SL1122A230 SL1122A250 230 SL1122A260 SL1122A350 SL1122A450 200 50 20 1x10 @ 120V 100 120 20 5 1x108 @ 150V 100 135 20 10 5 1x108 @ 150V 100 135 20 10 5 1x108 @ 175V 100 135 20 5 10 5 1x10 @ 265V 100 135 20 5 10 5 1x108 @ 350V 100 135 20 150 250 5 260 184-276 200-300 210-350 10 5 1x108 @ 50V 5 10 5 350 5 10 400 5 400 5 350 280-420 600 450 420-600 700 250 8 8 Notes: (1) Measured using a voltage rate of rise of 100V/s. (2) In ionized mode (3) Tested according to ITU-T Rec.K.12 (4) Either end electrode to center electrode (5) Total current through center electrode, both line electrodes subject to simultaneous pulses (6) 10 shots, AC 60Hz, 1 sec duration (7) 10 shots, 8/20µs waveform (8) Measured @ 100V G.D.T. ONLY (9) Measured at MHz, line to ground CCT DIAGRAM HYBRID 348 w w w. l i t t e l f u s e . c o m