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| Gas Discharge Tubes High Performance Alpha Range RoHS GreentubeTM SL1122A Series Hybrid Gas Plasma Arresters (R) 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/S to 10 KV/S, 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/S. * 10KA surge capability tested with 8/20S pulse as defined by IEC 61000-4-5 * SAD ensures short circuit failure mode in the event of severe 8 GAS DISCHARGE TUBES 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) GRAPHICAL SYMBOL All dimensions in mm Mechanical Specifications: ORDERING INFORMATION SL 1122 A Voltage Weight: Materials: Device Marking: 2.7g (0.095 oz.) Electrode Base: Nickel Iron Alloy Electrode Plating: Bright Sn Body: Ceramic Littelfuse `LF' logo, voltage and date code w w w. l i t t e l f u s e . c o m 347 Gas Discharge Tubes High Performance Alpha Range RoHS GreentubeTM SL1122A Series Hybrid Gas Plasma Arresters (R) LITTELFUSE 3 TERMINAL ARRESTER SERIES TOTALLY NON-RADIOACTIVE, UL BREAKER VOLTAGE Max Max Repetitive Repetitive Max Alternating Insulation Max Dynamic Nominal Impulse Impulse Breakover Holdover On-State Breakover Discharge Capacitance9 1,2,4 3 Resistance8 Discharge Discharge 4,6 Voltage Voltage Voltage @ Voltage @ Current (pF) 1 kV/us (Vbr) Current4,7 (kA) Current5,7 (kA) (V) (V) () (A) 1A (V) 70-120 140-250 184-276 200-300 210-350 280-420 420-600 150 250 350 400 400 600 700 5 5 5 5 5 5 5 10 10 10 10 10 10 10 5 5 5 5 5 5 5 1x108 @ 50V 1x10 @ 120V 8 DC Part Number Voltage (V) SL1122A090 SL1122A200 SL1122A230 SL1122A250 SL1122A260 SL1122A350 SL1122A450 90 200 230 250 260 350 450 200 100 100 100 100 100 100 50 120 135 135 135 135 135 20 20 20 20 20 20 20 1x108 @ 150V 1x108 @ 150V 1x108 @ 175V 1x10 @ 265V 8 1x108 @ 350V 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, 8/20s waveform (8) Measured @ 100V (9) Measured at MHz, line to ground G.D.T. ONLY CCT DIAGRAM HYBRID 348 w w w. l i t t e l f u s e . c o m |
Price & Availability of SL1122A450
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