description ? axial-leaded fast-acting thru-hole fuse ? matte tin-plated copper lead wires ? high temperature epoxy plastic body, ul 94v0 ? low resistance values agency information ? ul recognition guide & file numbers: jdyx2 & e195337. ? csa certification record no: lr 701159 & class no: 1422 30 and 1422 01. environmental data ? shock resistance: mil-std-202, method 213b, test condition i (sawtooth) ? vibration resistance: mil-std-202, method 201 (10-55hz x 3 axis/ no load) ? moisture resistance: mil-std-202f, method 106 ? soldering heat resistance: mil-std-202, method 210 top side (260oc, 20 sec) ? salt spray: mil-std-202, method 101, test condition b (48 hours) ? solderability mil-std-202, method 208h ? operating temperating: -55oc to 125oc ordering ? specify packaging and product code (i.e., tr1/mcrw100ma) 3.18 0.1 ___ 7.1 0.5 (0.125 0.004) (0.280 0.020) a b 3.18 0.1 diameter (0.125 0.004) a diameter construction dimensions - mm (in) end view * ac interrupting rating (measured at designated voltage, 100%) dc interrupting rating (measured at designated voltage, rise ti me of less than 50 microseconds, battery source) ** dc cold resistance (measured at 10% of rated current) ? typical melting i 2 t (measured with a battery bank at rated dc voltage, 10x-rated current, rise time of calibrated circuit less than 50 microsecon ds) ? typical voltage drop (measured at rated current after temperature stabilizes) electrical characteristics % of amp rating opening time 100% 4 hours minimum 200% 5 seconds maximum amps a diameter 100ma - 7a 0.025" 10a - 15a 0.032" packaging code b length bk1 1.5" tr1 1.13" specifications voltage interrupting resistance typical typical part number rating rating* (amps) ( )** melt voltage vac/dc vac vdc typical i 2 t? drop? mcrw100ma 125 50 300 15.5 0.0006 3.00 mcrw125ma 125 50 300 2.2 0.0009 0.61 mcrw150ma 125 50 300 1.6 0.0015 0.54 mcrw200ma 125 50 300 1.2 0.002 0.48 mcrw250ma 125 50 300 0.85 0.004 0.43 mcrw300ma 125 50 300 0.62 0.008 0.39 mcrw375ma 125 50 300 0.49 0.012 0.35 mcrw500ma 125 50 300 0.33 0.023 0.31 mcrw750ma 125 50 300 0.19 0.056 0.25 mcrw1a 125 50 300 0.13 0.10 0.22 mcrw1.5a 125 50 300 0.07 0.25 0.18 mcrw2a 125 50 300 0.054 0.27 0.24 mcrw2.5a 125 50 300 0.041 0.50 0.22 mcrw3a 125 50 300 0.031 0.9 0.20 mcrw4a 125 50 300 0.023 1.6 0.19 mcrw5a 125 50 300 0.018 3 0.17 mcrw7a 125 50 300 0.012 7 0.15 mcrw10a 125 50 300 0.007 21 0.098 mcrw12a 125 50 300 0.006 35 0.093 mcrw15a 125 50 300 0.004 63 0.088 subminiature microtron fuses mcrw series, fast-acting, wire-in-air halogen hf free 0709 bu-sb09024 page 1 of 2 data sheet 4074
packaging code packaging code prefix description bk1 1,000 fuses in bulk tr1 2,500 fuses on tape-and-reel per eia-296-f @ 5 mm pitch and 52.4mm inside tape spacing time-current curve ? 2009 cooper bussmann st. louis, mo 63178 www.cooperbussmann.com 0709 bu-sb09024 page 2 of 2 data sheet 4074 the only controlled copy of this data sheet is the electronic read-only version located on the cooper bussmann network drive. al l other copies of this document are by definition uncontrolled. this bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with desig n applications. cooper bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. cooper bussmann also reserves t he right to change or update, without notice, any technical information contained in this bulletin. once a product has been selected, it should be tested by the user in all possible applications. life support policy: cooper bussmann does not authorize the use of any of its products for use in life support devices or system s without the express written approval of an officer of the company. life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructio ns for use provided in the labeling, can be reasonably expected to result in significant injury to the user. time in seconds current in amps
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