Gas Plasma Arrester (GDT) Products SL1026 Series SL1026 Series Gas Plasma Arrester Description The SL1026 Series is a heavy-duty transient suppresser using Gas Plasma technology. In response to transients that exceed the device s breakover voltage, the device changes from a very high impedance state to a low impedance state to conduct harmful current away from the protected system. The SL1026 is designed to protect electrical and electronic equipment such as communications, control and railway systems. Carefully designed geometry ensures against short circuiting if a failure occurs due to conditions and events beyond the design criteria. Optional electrical mounting clip (part SL1053 ) is available to aid mounting and connection. Agency Approvals Features AGENCY AGENCY FILE NUMBER RoHS compliant Will protect against E128662 capacitor discharge 55 kA surge capability voltage transient (single shot) tested with waveforms as specied 8/20S pulse as dened 3 Electrode GDT Graphical Symbol in RIA 12. by IEC 61000-4-5 Will protect against a = TIP 40 kA surge capability b = RING double exponential (repetitive) a b e = GROUND voltage transient (centre electrode) Will protect against waveforms as specied Trapezoidal waveforms in IEC 571. as specied in RIA 12. e Applications Signaling equipment. Trackside cabinets. Communication Cell phone base equipment stations Control gear. Electrical Characteristics DC Voltage 1 1 1 1,2 AC AC Surge Max 1 Max Single 100 V/sec 1 DC Current Current Current Single 150(+) and 150(-) Surge Part Number* Voltage 9 cycles 50Hz 8/20Sec Surge 10/1000Sec 10/350Sec 1kV/s 50-60Hz 1 sec x10 x 10 8/20Sec (Amps) MIN MAX (kAmps) (Amps) (Amps) (kAmps) (kAmps) SL1026-275 200 350 800 200 10 20 40 8 200 SL1026-400 300 500 900 200 10 20 40 8 200 SL1026-700 560 840 1300 200 10 20 40 8 200 NOTES: End of life limits -- DC: 50% of minimum initial DC breakdown voltage limit to 150% of maximum initial DC breakdown voltage limit. -- Impulse: less that 150% of initial impulse breakdown voltage limit. 1. Total current through center electrode, tested using SL1053B-NL holder 2. Exceeds capability of SL1053B-NL holder 2009 Littelfuse, Inc. 33 SL1026 Series Specications are subject to change without notice. Revised: October 23, 2009 Refer to www.littelfuse.com/series/SL1026.html for current information.Gas Plasma Arrester (GDT) Products SL1026 Series Voltage vs. Time Characteristic Product Dimensions SL1026 GDT Series Prole Max dynamic breakover 45.0 Max voltage 22.0 Ref 8.7 9.1 Max Max Type 1053 Holder Prole Hold-over voltage On-State voltage 0 200 400 600 800 1000 1200 Time (ns) Electrical Specications Insulation > 10G at 100 Volts Resistance Capacitance: <=2.5pf, 1MHz 0 Volts Bias All dimensions in mm <150mS, tested at 130 volts according to Holdover Voltage: ITU-T Rec. K.12 & REA PE 80 Part Numbering System ~35 Volts, On State Voltage at 1 Amp Arc Voltage: (Depending on Voltage Type) SL 1026 Glow to Arc ~1 Amp Voltage Transition Current: > 150 Volts, depending on Voltage Glow Voltage: Type Packaging GDT devices are provided as bulk pack in poly bag -- Physical Specications 20 pieces per bag and 5 bags per carton. Weight: 11g (0.388 oz.) Electrode Base: Nickel Iron Alloy Materials: Electrode Plating: Nickel Body: Ceramic Color coded body SL1026-275: Black/Black Part Marking: SL1026-400: Black/Yellow SL1026-700: Black/Red Storage and Operating -40C to +90C Temperature: 2009 Littelfuse, Inc. SL1026 Series 34 Specications are subject to change without notice. Revised: October 23, 2009 Refer to www.littelfuse.com/series/SL1026.html for current information. Voltage (V)