100mA-400mA EOL Last Buy Date is Jun 30, 2020 No replacements for these ratings The replacement series is the C1T, (0685Txxxx-01). Type MJS Lightning Surge Withstand Fuse MJS Series, 5x15mm Glass Tube Lightning Surge Withstand Fuse RoHS 2 Compliant Description MJS fuses have been used for Tip and Ring protection in telecommunication circuits. And they continue to be used in legacy designs. However, with advent of new issues of IEC/UL 60950 and Telcordia GR-1089(Issue 3). MJS fuses may no longer meet all test requirements, depending on the end product circuit design. It is recommended that Types RJS and SMP be evaluated for all new telecommunication applications. Features - Meet UL and CSA standard 248-14 - Wide operating temperature range - Bulk and Tape & Reel packing available - RoHS 2 compliant - Halogen Free - Lead Free Applications Provide individual protection for components or internal circuits. - Power supplies - Battery charger - Monitor LEAD FREE = - Adapter HALOGEN FREE = - Telecom protection Physical Specifications Body : Glass Materials Cap : Nickel Plated Brass Caps Leads : Matte Tin Plated Copper, Diameter 0.032 On Fuse : bel, MJS, Current Rating, Voltage Rating, Appropriate Safety Logos, RoHS 2 compliant Marking On Label : be,MJS,Current Ratin,Voltage Ratin,Interrupting Ratin, Appropriate Safety Logo and , (China RoHS compliant). Electrical Characteristics (UL/CSA STD.248-14) Safety Agency Approvals Blow Time Safety Safety Agency Voltage Rating Ampere Range / Volt Testing Current Minimum Maximum Agency Certificate (V) I.R. ability* 100% 4 hrs. N/A E20624 100mA-7A/125V AC 10,000A 135% N/A 1 Hr. 100mA7A/ 200% 3 sec 20 sec LR39772 100mA-7A/250V AC 200A 250V AC 500% 100 msec 1.5 sec JET1037-31003-1011 1A-5A/125V AC 500A 1000% 30 msec 300 msec *I.R.= Interrupting Rating = Short Circuit Rating(Amps) Specifications subject to change without notice belfuse.com/circuit-protection 100mA-400mA EOL Last Buy Date is Jun 30, 2020 No replacements for these ratings 2 / 4 Type MJS The replacement series is the C1T, (0685Txxxx-01). Environmental Specifications MIL-STD-202G, Method 213B, Test Condition 1 Shock Resistance (100 G s peak for 6 milliseconds Sawtooth waveform) Vibration Resistance MIL-STD-202G, Method 201A (10-55 Hz, 0.06 inch, total excursion). Salt Spray Resistance MIL-STD-202G, Method 101E, Test Condition B (48 hrs.). MIL-STD-202G, Method 302, Test Condition A Insulation Resistance (After Opening) 10,000 ohms minimum. Solderability MIL-STD-202G, Method 208H Resistance to solder Heat MIL-STD-202G, Method 210F, Test Condition B (260+/-5 ,10+/-1 sec) Thermal Shock MIL-STD-202G, Method 107G, Test Condition B (-65 to +125 ). Operating Temperature -55 to +125 Terminal Strength IEC-68-2-21 Electrical Specifications Peak Surage Agency Approvals Current (Amp) Maximum Typical Cold Volt-drop Voltage and Melting IT Melting IT Catalog Ampere Power (Flg A) (Flg B) Resistance 100%In Interrupting <10 mSec 10 In Number Rating Dissipation 25 Pulses 50 Pulses (ohm) (Volt) max. Ratings (A Sec) (A Sec) (W) 10uS x 10uS x 1000uS 560uS MJS 100-R 100mA 12.5 1.88 0.068 0.088 4.5 6.0 0.22 Y Y MJS 125-R 125mA 7.8 1.44 0.107 0.138 5.6 7.5 0.24 Y Y MJS 150-R 150mA 5.3 1.17 Y 0.167 0.216 6.8 9 0.27 Y See Table of Safety Approvals on Page MJS 200-R 200mA 3.7 1.02 0.26 0.34 9 12 0.30 Y Y 1 for Voltage and EOL MJS 250-R 250mA 2.27 0.89 0.41 0.53 12 16 0.34 Y Y associated Last Buy Date is Interrupting Ratings MJS 300-R 300mA 1.57 0.78 0.60 0.83 15 17 0.36 Y Y Jun 30, 2020 MJS 350-R 350mA 1.10 0.72 Y Y 0.8 1.0 18 24 0.40 MJS 400-R 400mA 0.875 0.67 1.0 1.3 20 27 0.42 Y Y MJS 500-R 500mA 0.630 0.59 1.6 2.0 26 35 0.47 Y Y MJS 600-R 600mA 0.440 0.53 2.2 2.3 29 33 0.49 Y Y MJS 700-R 700mA 0.341 0.49 3.0 4.0 38 50 0.54 Y Y MJS 750-R 750mA 0.326 0.48 3.0 4.0 38 50 0.55 Y Y MJS 800-R 800mA 0.250 0.42 5.0 7.0 50 66 0.60 Y Y MJS 1-R 1A 0.195 0.39 5.9 7.8 56 75 0.64 Y Y Y See Table of Safety MJS 1.25-R 1.25A 0.130 0.34 9.3 12 75 100 0.71 Y Y Y Approvals on Page MJS 1.5-R 1.5A 0.100 0.29 15 19 94 125 0.80 Y Y Y 1 for Voltage and associated MJS 2-R 2A 0.061 0.26 23 30 120 160 0.89 Y Y Y Interrupting MJS 2.5-R 2.5A 0.046 0.22 35 47 150 200 0.99 Y Y Y Ratings MJS 3-R 3A 0.037 0.19 55 73 195 260 1.10 Y Y Y MJS 3.5-R Y Y Y 3.5A 0.029 0.18 69 91 225 300 1.16 MJS 4-R 4A 0.024 0.17 86 114 255 340 1.22 Y Y Y MJS 5-R 5A 0.019 0.15 135 179 330 440 1.36 Y Y Y MJS 6-R 6A 0.015 0.13 211 279 428 570 1.51 Y Y MJS 7-R Y 7A 0.012 0.12 263 350 488 650 1.60 Y Consult manufacturer for other ratings Specifications subject to change without notice Bel Fuse Inc. +1 201.432.0463 206 Van Vorst Street Bel.US.CS belf.com Jersey City, NJ 07302 USA belfuse.com/circuit-protection 2019 Bel Fuse, Inc. Rev. MJS Dec2019