SL1021A400RF Littelfuse

Gas Discharge Tubes SL1021A/B Series RoHS SL1021A/B Series Description GDT circuit protection devices dissipate electrical surge energy safely within a contained plasma gas. Commonly used to help protect sensitive telecom and networking equipment and lines, GDTs protect from damage that may result from lightning strikes and equipment switching operations. The Littelfuse GDT series described in this document are available in a variety of leaded and surface mount forms and offered with and without optional fail-safe clip. Please refer to the electrical specifications, dimension and packaging options section of this document for additional information. SL1021A/B Series: Agency Approvals SL1021A/B series GDTs are designed to offer high AGENCY AGENCY FILE NUMBER levels of performance on fast rising transients in the range of 100V/S to 1KV/S, which are those most E128662 likely created by induced lightning disturbances. These devices feature ultra low capacitance (typically 3 Electrode GDT Graphical Symbol 1.5pF or less) and are extremely robust with SL1021A devices able to divert a 10,000 Amp pulse without destruction, and SL1021B suffix devices able to divert a b a = TIP a 20,000 Amp pulse without destruction. b = RING These series offer optimized internal geometry which e = GROUND provide low insertion loss at high frequencies, ideal (center electrode) for the protection of broadband and other high speed e transmission equipment. Features Product Characteristics RoHS compliant 10KA (A suffix devices) / Dull Tin Plate 17.5 12.5 Microns. Materials 20KA (B suffix devices) Low insertion loss with ceramic insulator surge capability tested Excellent response to LF mark, voltage& date code: with 8/20s pulse as Product Marking SL1021A - Red/White text fast rising transients defined by IEC 61000-4-5 SL1021B - Blue/White text Ultra low capacitance Available with thermal Glow to arc ~ 1Amp transition current failsafe option (add F suffix to part number) Glow Voltage ~60-200 Volts Storage and Operation -40 to +90C Applications Temperature Transverse Voltage SL1021: Telecom network < 0.2Sec (Tested to ITU-T Rec. K.12) (Delay Time) interfaces Broadband equipment Arc Voltage ~10 to 35 Volts Telephone line cards ADSL equipment Holdover Voltage <150mS (Tested to ITU-T Rec. K.12) Repeaters XDSL equipment Modems Satellite and CATV equipment Line test equipment Splitters General telecom equipment 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/12/17Gas Discharge Tubes SL1021A/B Series Electrical Characteristics Device Specifications (at 25C) Life Ratings DC DC AC Surge Max Insulation DC Voltage Capaci- Max Single Surge Life Part Voltage Voltage Current Current Single Resistance 100V/Sec. tance Surge 10/1000 Number 100 V/ 1kV/ 50Hz 8/20Sec Surge 1 1 ( 1Mhz) 10/350Sec Secx300 1 1 1 MIN TYP MAX MIN Sec. Sec. 1Sec.x10 x10 8/20Sec SL1021B075 60 75 90 10 2 650 >10 4kA 3 SL1021A090 (at 50V) 5kA 72 90 108 SL1021B090 SL1021A145 116 145 174 SL1021B145 500 SL1021A150 600 120 150 180 SL1021B150 SL1021A200 150 200 250 SL1021A230 184 230 276 450 SL1021B230 650 SL1021A250 200 250 300 500 SL1021B250 SL1021A260 2 2 10kA 15kA 210 260 310 550 700 SL1021B260 <1.5pF 10Amps 200Amps 3 3 20kA 25kA 10 2 SL1021A300 >10 2.5kA 240 300 360 650 850 3 SL1021B300 (at 100V) 5kA SL1021A350 280 350 420 700 900 SL1021B350 SL1021A400 320 400 480 SL1021B400 850 950 SL1021A420 345 420 500 SL1021B420 SL1021A450 360 450 540 900 1000 SL1021B450 SL1021A500 400 500 600 950 1100 SL1021B500 SL1021A600 480 600 720 1000 1200 NOTES: 1. Total current through centre electrode, tested in accordance with ITU-T Rec K.12 2. SL1021A series 3. SL1021B series Additional Information Datasheet Resources SamplesSamples SL1021A SL1021A SL1021A SL1021A Datasheet Resources SamplesSamples SL1021B SL1021B SL1021B SL1021B 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/12/17