?2009 littelfuse, inc. gas plasma arrester (gdt) products 33 revised: october 23, 2009 sl1026 series sl1026 series speci?cations are subject to change without notice. refer to www.littelfuse.com/series/sl1026.html for current information. description the sl1026 series is a heavy-duty transient suppresser using gas plasma technology. in response to transients that exceed the device's brea kover 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. features ? rohs compliant ? 55 ka surge capability (single shot) tested with 8/20s pulse as de?ned by iec 61000-4-5 ? 40 ka surge capability (repetitive) ? will protect against trapezoidal wavef orms as speci?ed in ria 12. ? will protect against capacitor discharge voltage transient wavef orms as speci?ed in ria 12. ? will protect against double exponential voltage transient wavef orms as speci?ed in iec 571. applications ? signaling equipment. ? communication equipment ? control gear. ? trackside cabinets. ? cell phone base stations sl1026 series gas plasma arrester 3 electrode gdt graphical symbol agency agency file number ? e128662 agency approvals a e b a = tip b = ring e = ground (centre electrode) ? electrical characteristics part number* dc voltage 100 v/sec dc voltage 1kv/s 1 ac current 9 cycles @50-60hz (amps) 1 ac current 50hz 1 sec x10 (amps) 1 surge current 8/20sec x 10 (kamps) 1,2 max single surge 8/20sec (kamps) 1 max single surge 10/350sec (kamps) 1 150(+) and 150(-) 10/1000sec (amps) min max 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. gas plasma arrester (gdt) products 34 revised: october 23, 2009 sl1026 series sl1026 series speci?cations are subject to change without notice. refer to www.littelfuse.com/series/sl1026.html for current information. gdt devices are provided as bulk pack in poly bag -- 20 pieces per bag and 5 bags per carton. electrical speci?cations insulation resistance > 10g at 100 volts capacitance: <=2.5pf, 1mhz 0 volts bias holdover voltage: <150ms, tested at 130 volts according to itu-t rec. k.12 & rea pe 80 arc voltage: ~35 volts, on state voltage at 1 amp (depending on voltage type) glow to arc transition current: ~1 amp glow voltage: > 150 volts, depending on voltage type voltage vs. time characteristic product dimensions part numbering system 1026 C voltage sl packaging all dimensions in mm type 1053 holder pro?le sl1026 gdt series pro?le voltage (v) time (ns) 0 200 400 600 800 1000 1200 max dynamic breakover voltage hold-over voltage on-state voltage physical speci?cations weight: 11g (0.388 oz.) materials: electrode base: nickel iron alloy electrode plating: nickel body: ceramic part marking: color coded body sl1026-275: black/black sl1026-400: black/yellow sl1026-700: black/red storage and operating temperature: -40c to +90c 22.0 ref 45.0 max ?8.7 max ?9.1 max
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