GTCX35-XXX-R05 Series GTCX35-XXXM-R05 Series Gas Discharge Tubes Littelfuse Circuit Protection 5mm 3Pole GDTs (ceramic gas discharge tubes), are commonly used to help protect sensitive telecom equipment such as communication lines, signal lines and data transmission lines from damage caused by transient surge voltages that typically result from lightning strikes and equipment switching operations. Littelfuse Circuit Protection GDTs offer a high level of surge protection, low capacitance and a broad array of breakover voltage levels, making them suitable for applications such as MDF (Main Distribution Frame) modules, high data-rate telecom applications (e.g. ADSL, VDSL), and surge protection on power lines. Littelfuse Circuit Protection GDTs can help equipment meet the most stringent regulatory standards. Features: Benefits: Compact, small form factor suitable for efficient assembly 3Pole, 5mm devices Helps provide overvoltage fault protection against high energy surges Various form factors: surface-mount, leaded, no leads Suitable for high-frequency applications Optional fail-short mechanism on some devices Broad voltage range from 75V-600V Low capacitance and insertion loss Crowbar overvoltage protection UL 497B recognized RoHS compliant Devices tested per ITU K.12 recommendations Non-radioactive materials Applications: Telecommunications * Industrial and consumer electronics, such as - MDF modules, xDSL equipment, RF system - Surge protectors protection, antenna, base station - Alarm system (c) 2016 Littelfuse,Inc. Telecommunications Specifications are subject to change without notice. Revised July26,2016 MDF modules, xDSL equipment, RF sytem Protection, antenna, pase station * Industrial and consumer electronics, DOCUMENT: such as SCD27305 1 STATUS: REV: G RELEASED DATE: JULY 26, 2016 GTCX35-XXX-R05 Series GTCX35-XXXM-R05 Series Gas Discharge Tubes Device Voltage Ratings and Part Marking Part Number Impulse Sparkover DC Sparkover DC Holdover Voltage On-State Voltage @100V/s 20% Tolerance (V) @100 Vs (V) @1000 Vs (V) GTCX35-750M-R05 75 450 550 <52 20 GTCX35-900M-R05 90 450 550 <52 20 GTCX35-141M-R05 140 500 600 <80 20 GTCX35-151M-R05 150 500 600 <80 20 GTCX35-201M-R05 200 600 700 <135 20 GTCX35-231M-R05 230 600 700 <135 20 GTCX35-251M-R05 250 600 700 <135 20 GTCX35-261M-R05 260 700 800 <135 20 GTCX35-301M-R05 300 800 900 <150 20 GTCX35-351M-R05 350 900 1000 <150 20 GTCX35-401M-R05 400 900 1000 <150 20 GTCX35-421M-R05 420 900 1000 <150 20 GTCX35-471M-R05 470 1050 1150 <150 20 GTCX35-501M-R05 500 1100 1200 <150 20 GTCX35-551M-R05 550 1300 1400 <150 20 GTCX35-601M-R05 600 1300 1400 <150 20 Per ITU K.12 (<150ms) (V) Nominal (@ 1A) (V) Note:X options: S: Surface-mount; A: Axial-leaded; N: No-leaded Device Surge Rating, Capacitance, Insulation Resistance, UL Listing Part Number Impulse Life AC Discharge Current (1sec duration; 10 hits) Capacitance Insulation Resistance UL Rating 8x20s 10 hits 10x1000s 300 hits @50 Hz @1Mhz @100V* UL497B #E179610 5kA 100A 5Arms <1pF 10,000 (M) All Devices Impulse Discharge Current GTCx35-xxxM-R05 * Devices <=150V measured @ 50V Devices >= 500V measured @ 250V (c) 2016 Littelfuse,Inc. Specifications are subject to change without notice. Revised July 26,2016 2 DOCUMENT: SCD27305 STATUS: RELEASED REV: G DATE: JULY 26, 2016 GTCX35-XXX-R05 Series GTCX35-XXXM-R05 Series Product Dimensions Gas Discharge Tubes DIMENSIONS = MILLIMETERS [INCHES] Axial Leaded (GTCA35-XXXM-R05-FT) Axial Leaded (GTCA35-XXXM-R05) "T" Leaded (GTCT35-XXXM-R05) Surface-mount (GTCS35-XXXM-R05) No Leads with -FT (GTCN35-XXXM-R05-FT) (c) 2016 Littelfuse,Inc. Specifications are subject to change without notice. Revised July 26,2016 3 No Leads (GTCN35XXM-R05) DOCUMENT: SCD27305 STATUS: RELEASED REV: G DATE: JULY 26, 2016 GTCX35-XXX-R05 Series GTCX35-XXXM-R05 Series Gas Discharge Tubes Pad Layout - Surface-mount Devices mm: in*: X NOM 6.0 (0.236) Y1 NOM 3.6 (0.142) Y2 NOM 3.6 (0.142) Z1 NOM 2.5 (0.098) Z2 NOM 1.3 (0.051) General Characteristics No Radioactive Material Storage Temperature: -40C to +90C Operating Temperature: -40C to +90C Body: Nickel Plated Leads: Surface-mount, "T" and Axial Devices: Tin Plated Devices with no leads: Nickel Plated Soldering Notes: Devices with no leads: non-solderable; suitable for insertion into a magazine clip Materials Information RoHS Compliant ELV Compliant Packaging Information Part Description No Leaded: GTCN35-XXXM-R05 With Leads: GTCA35-XXXM-R05/GTCT35-XXXM-R05 Surface-mount (T&R): GTCS35-XXXM-R05-2 (c) 2016 Littelfuse,Inc. Specifications are subject to change without notice. Revised July 26,2016 4 Tray / Reel Standard Package 100 pcs (Tray) 100 pcs (Tray) 1,000 pcs (Reel) 2,500 pcs 1,000 pcs 8,000 pcs DOCUMENT: SCD27305 STATUS: RELEASED REV: G DATE: JULY 26, 2016 GTCX35-XXX-R05 Series GTCX35-XXXM-R05 Series Gas Discharge Tubes Part Numbering System Example Part Number: GTCX35-351M-R05-FT GT = C= X= 3= 5= 351 = M= R= 05 = FT = -2 Gas Tube Ceramic Lead Configuration: N= No leads; A= Axial Leads; S= Surface-mount; T= T Configuration Leads 3 Electrode device 5mm Diameter DC Spark Over Voltage of 350V (at 100V/s) Tolerance of 20% on DC Spark Over Voltage Product Family Designator Surge rating: 8x20s 5kA 10 times With Fail-Short mechanism Tape and Reel (c) 2016 Littelfuse,Inc. Specifications are subject to change without notice. Revised July 26,2016 5 DOCUMENT: SCD27305 STATUS: RELEASED REV: G DATE: JULY 26, 2016 GTCX35-XXX-R05 Series GTCX35-XXXM-R05 Series Gas Discharge Tubes Part Marking Reference Guide Example Part Marking: = 35 = R05 = GN = 35 R05 GN Manufacturer's Mark Voltage Designator (35 = 350V) Product Family Designator + Surge Current 5kA (8x20s 10 hits) Year and Week of Manufacture Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. (c) 2016 Littelfuse,Inc. Specifications are subject to change without notice. Revised July 26,2016 6 DOCUMENT: SCD27305 STATUS: RELEASED REV: G DATE: JULY 26, 2016