5 x 15mm Glass Tube Type MJS Lightning Surge Withstand Fuse MJSD0903 MJS Fuses are primarily intended for use in telecommunication circuit applications requiring low current protection with high surge tolerance. They are typically used to replace heat coil type devices. They are designed to be placed between the line input and the surge arresting components (mov, gas tube, zenor diode, air gaps, etc.) These fuses will withstand transient surge currents generated by lightning in accordance with the attached table. MJS fuses guard protected circuitry against sustained overload or short circuit conditions. Such sustained overloads may be generated by accidental contact between utility cables and phone lines (power line cross). MJS Fuses are used in circuits to obtain compliance with the test requirements specified in UL 1950/60950 and Bellcore 1089. Electrical Characteristics (UL/CSA STD.248-14) Testing Current 100% 135% 200% 500% 1000% Safety Agency Approvals V Listed File no. E20624 ß Certified File no. LR39772 p File no. JET1037-31003-1003 100mA.- 7A / 125V AC@ 10,000A 100mA.- 7A / 250V AC@ 200A Typical Volt-drop Melting I2T Melting I2T Peak Surge Current (Amp) Maximum Power Cold @10 In @100% In < 10 mSec (fig B) (Fig A) Dissipation Resistance 50 Pulses 25 Pulses 2 2 (A Sec) 10uS x 1000uS 10uS x 560uS (W) (ohm) (Volt) max. (A Sec) MJS 100 100mA 11.00 1.55 0.068 0.088 4.5 6.0 0.22 MJS 125 125mA 7.62 1.35 0.11 0.14 5.6 7.5 0.24 MJS 150 150mA 5.28 1.17 0.17 0.22 6.8 9.0 0.27 MJS 200 200mA 3.66 1.02 0.26 0.34 9 12 0.30 MJS 250 250mA 2.54 0.89 0.41 0.53 12 16 0.34 MJS 350 350mA 1.46 0.72 0.80 1.03 18 24 0.40 MJS 400 400mA 1.22 0.67 0.99 1.29 20 27 0.42 MJS 500 500mA 0.84 0.59 2 2 26 35 0.47 MJS 700 700mA 0.525 0.49 3 4 38 50 0.54 MJS 750 750mA 0.487 0.48 3 4 38 50 0.55 1A 0.281 0.39 6 8 56 75 0.64 MJS 1.25 1.25A 0.195 0.34 9 12 75 100 0.71 MJS 1.5 1.5A 0.135 0.29 14 19 94 125 0.80 MJS 2 MJS 2.5 MJS 3 2A 0.094 0.26 23 30 120 160 0.89 2.5A 0.065 0.22 35 47 150 200 0.99 3A 0.045 0.19 55 73 195 260 1.10 3.5A 0.037 0.18 69 91 225 300 1.16 MJS 4 4A 0.031 0.17 86 114 255 340 1.22 MJS 5 5A 0.022 0.15 135 179 330 440 1.40 MJS 6 6A 0.015 0.13 211 279 428 570 1.50 MJS 7 7A 0.012 0.12 263 350 488 650 1.60 MJS 3.5 Vßpc Amp range / Volt @ I.R. ability Ampere Rating MJS 1 Blow Time Minimum Maximum 4 Hrs. N/A N/A 1 Hr 3 sec 20 sec 100 msec 1.5 sec 30 msec 300 msec Approvals mCatalog Number Consult manufacturer for other ratings FIG A 1A.- 5A / 125V AC@ 500A FIG B Power Cross Rating 600V ac, 40A Operating Temperature -55ºC to +125ºC See P.4 for explanation of Peak Surge Current Withstand Mechanical Dimensions Physical Specification Marking On fuse: “bel”, “MJS”, “Current Rating”, “250V” & “Appropriate Safety Logos” On label: Above info plus “c” and interrupting rating 0.217"±0.004" (5.5±0.1mm) SEE LEAD SIZE IN “MATERIAL” MJS 0.710"±0.080" (18.0±2.0mm) Packaging 1. In bulk: 500 pcs per box 2. On Axial Tape & Reel: 1,500 pcs per reel 3. Tape & Reel specification: per EIA-296-E & IEC 286-1 @ 10mm Pitch and 52.4mm inside Tape Spacing 0.590"±0.020" (1.5±1.0mm) 0.244"±0.008" (6.2±0.2mm) WITH INSULATION SLEEVE Specifications subject to change without notice 0.59"±0.02" 1.50"±0.08" (38.1±2.0mm) (15.0±0.5mm) Materials Glass body / Nickel Plated Brass Caps Lead wire: Tin-lead plated Copper, Diameter 0.032" Option With Heat Shrink Tubing (VW-1) over body ORDERING INFORMATION SEE PAGES 67 & 68 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel: 201-432-0463 • Fax: 201-432-9542 • E-Mail: [email protected] Website: www.belfuse.com 33 5 x 15mm Glass Tube Type MJS Lightning Surge Withstand Fuse MJSC0801 3A 3.5A 4A 5A 6A 7A - - 400mA - 500mA - 700mA - 750mA - 1A - 1.25A - 1.5A - 2A - 2.5A - 250mA - 350mA - 150mA - 200mA - 100mA - 125mA MJS - TIME CURRENT CHARACTERISTIC CURVE 10000 TIME IN SECONDS 1000 100 10 0.1 0.01 0.01 0.1 1 10 100 1000 CURRENT IN AMPERES Specifications subject to change without notice 1 NOTE - see important information under “User Guide”on P.08 Corporate Office Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel: 201-432-0463 Fax: 201-432-9542 E-Mail: [email protected] Website: www.belfuse.com Far East Office Bel Fuse Ltd. 8F/8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel: 852-2328-5515 Fax: 852-2352-3706 European Office Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Preston PR1 8UD Lancashire, U.K Tel: 44-1772-556601 Fax: 44-1772-888366 34