Bourns Fuses Visit BournsO Website at www.bourns.com Multifuse PTC Resettable Overcurrent Protectors Axial Lead PTC Resettable Overcurrent Protectors Multifuse products are made from a conductive plastic formed into thin sheets with electrodes attached to either side. The conductive plastic is manufactured from a non-conductive crystalline polymer and a highly conductive carbon black. The electrodes ensure even distribution of power through the device and provide a surface for leads to be attached. The conductive carbon black filler material is dispersed in the polymer. When the polymer is at room temperature, there are numerous carbon chains forming conductive paths through the material. Under a fault condition, I2R heating causes the plastic materialOs temperature to rise, resulting in a phase transformation of the polymer matrix to an amorphous stricture. This is accompanied with a small expansion. As the conductive particles move apart, most of them no longer conduct current and the resistance of the device increases sharply. The device will remain in this condition until the fault is cleared, allowing the carbon chains to reform as the polymer re-crystallizes. The resistance quickly returns to its original value. While fuses work well only once, replacement is not an option in many applications due to inconvenience, warranty cost or damaged reputations. Applications for resettable devices include computers and PDAs, motors, audio equipment, test and measurement equipment, security and fire alarms, medical, POS equipment, industrial controls, automotive and marine electronics, and battery-operated toys. Maximum Current: 40-100 amps. ManufacturerOs literature available upon request. Kinked lead option is available for board standoff. Contact Allied for details. Dimensions N mm C A B D E Max. Max. Nom. Tol. Min. Max. Mfr.Os Type MF-R010 MF-R020 MF-R025 MF-R030 MF-R040 MF-R050 MF-R065 MF-R075 MF-R090 MF-R090-0-9 MF-R110 MF-R135 MF-R160 Stock No. 7.4 7.4 7.4 7.4 7.4 7.9 9.7 10.4 11.7 7.4 8.9 8.9 10.2 12.7 12.7 12.7 13.4 13.7 13.7 15.2 16.0 16.7 12.2 14.0 18.9 16.8 Mfr.Os Type 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 Style 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.1 3.0 3.0 3.0 3.0 Initial Resistance @ 23C 754-1350 754-1351 754-1352 754-1354 754-1356 754-1358 754-1360 754-1362 754-1364 754-1366 754-1367 754-1368 754-1370 754-1372 754-1374 754-1376 754-1377 754-1378 754-1380 754-1382 754-1384 754-1386 754-1388 754-1389 754-1395 754-1397 MF-R010 MF-R017 MF-R020 MF-R025 MF-R030 MF-R040 MF-R050 MF-R065 MF-R075 MF-R090 MF-R090-0-9 MF-R110 MF-R135 MF-R160 MF-R185 MF-R250 MF-R250-0-10 MF-R300 MF-R400 MF-R500 MF-R600 MF-R700 MF-R800 MF-R900 MF-RX110 MF-RX160 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 2 3 2 2 2 2 2 2 2 3 3 2.500 2.000 1.500 1.000 0.760 0.520 0.410 0.270 0.180 0.140 0.070 0.100 0.065 0.055 0.040 0.025 0.025 0.020 0.010 0.010 0.005 0.005 0.005 0.005 0.150 0.090 MF-R185 MF-R250 MF-R250-0-10 MF-R300 MF-R400 MF-R500 MF-R600 MF-R700 MF-R800 MF-R900 MF-RX110 MF-RX160 N Current Limit @ 23C Min. Max. Hold 4.500 3.200 2.840 1.950 1.360 0.860 0.770 0.480 0.400 0.310 0.120 0.180 0.115 0.105 0.070 0.048 0.048 0.050 0.030 0.030 0.020 0.020 0.020 0.010 0.250 0.140 0.10 0.17 0.20 0.25 0.30 0.40 0.50 0.65 0.75 0.90 0.90 1.10 1.35 1.60 1.85 2.50 2.50 3.00 4.00 5.00 6.00 7.00 8.00 9.00 1.10 1.60 C A B D E Max. Max. Nom. Tol. Min. Max. Mfr.Os Type 12.0 12.0 11.4 12.0 14.4 17.4 19.3 22.1 24.2 24.2 13.0 16.3 N 5.1 5.1 5.1 5.1 5.1 10.2 10.2 10.2 10.2 10.2 5.1 5.1 N 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 N 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 7.6 N 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.1 3.1 N EACH Max. Lead Volts Dia. Trip 0.20 0.34 0.40 0.50 0.60 0.80 1.00 1.30 1.50 1.80 1.80 2.20 2.70 3.20 3.70 5.00 5.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 2.20 3.20 18.4 18.3 18.3 18.3 24.8 24.9 31.9 29.8 32.9 32.9 18.0 21.3 N 1-9 10-24 25-49 50-99 100-249 60 60 60 60 60 60 60 60 60 60 30 30 30 30 30 30 30 30 30 30 30 30 30 30 60 60 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.81 0.51 0.81 0.81 0.81 0.81 0.81 0.81 0.81 0.81 0.81 .40 .35 .69 .62 .43 .37 .36 .32 .60 .32 .38 .33 .48 .42 .47 .41 .51 .44 .47 .41 .47 .41 .45 .41 .80 .70 .49 .43 .49 .43 .47 .41 .55 .48 .96 .84 1.01 .89 1.09 .94 1.12 .97 1.15 .99 1.18 1.03 1.24 1.11 .47 .41 .55 .48 .32 .57 .34 .29 .29 .31 .39 .37 .40 .37 .37 .37 .65 .39 .39 .37 .44 .78 .83 .88 .90 .93 .94 1.00 .37 .44 .30 .55 .31 .27 .27 .28 .36 .35 .37 .35 .35 .35 .59 .36 .36 .35 .41 .71 .77 .81 .84 .86 .88 .94 .35 .41 .28 .49 .29 .25 .25 .26 .33 .32 .35 .32 .32 .32 .55 .34 .34 .32 .38 .64 .67 .71 .74 .76 .78 .82 .32 .38 Terminal Material: Solder-plated copper. Termination Pad Solderability: Meets EIA specification RS-186-9E, ANSI/J-STD-002 Category 3. Dimensions N mm A B C D E Mfr.Os Type Min. Max. Min. Max. Min. Max. Min. Min. Max. MF-MSMD020-2 MF-USMD035-2 MF-MSMD050-2 MF-MSMD075-2 MF-MSMD110-2 4.37 3.00 4.37 4.37 4.37 4.73 3.43 4.73 4.73 4.73 3.07 2.35 3.07 3.07 3.07 3.41 2.80 3.41 3.41 3.41 0.56 0.38 0.38 0.38 0.38 0.81 0.62 0.62 0.62 0.62 0.30 0.35 0.30 0.30 0.30 0.25 0.25 0.25 0.25 0.25 0.50 0.50 0.50 0.50 0.50 Current Limit @ 23C Max Volts 754-1315 754-1316 754-1317 754-1318 754-1319 Mfr.Os Type MF-MSMD020-2 MF-USMD035-2 MF-MSMD050-2 MF-MSMD075-2 MF-MSMD110-2 Dimensions N mm A B C D F Mfr.Os Type Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. MF-LR190S MF-LR380 MF-LR450 MF-LR550 MF-LR600 MF-LR730 MF-LS070 MF-LS070S MF-LS100S MF-LS180 MF-LS180S MF-LS190 MF-LS190RU MF-LS260 MF-LS300 MF-LS340 MF-VS170 MF-VS210G MF-VS210S MF-VS210L 19.9 24.0 24.0 35.0 24.0 26.0 19.9 19.9 20.9 24.0 24.0 21.3 19.8 24.0 28.4 24.0 15.5 20.9 20.9 20.9 22.1 26.0 26.0 37.0 26.0 29.1 22.1 22.1 23.1 26.0 26.0 23.4 20.8 26.0 31.8 26.0 17.5 23.1 23.1 23.1 4.9 6.9 9.9 6.9 13.9 13.9 4.9 4.9 4.9 4.9 4.9 10.2 13.3 10.8 13.0 14.8 7.0 4.9 4.9 4.9 5.5 7.5 10.5 7.5 14.5 14.5 5.2 5.2 5.2 5.2 5.2 11.0 14.3 11.9 13.5 15.9 7.4 5.3 5.3 5.3 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.6 0.6 0.6 0.5 0.4 0.6 0.5 0.6 0.4 0.6 0.6 0.6 1.00 1.00 1.00 1.00 1.00 1.00 1.20 1.20 1.00 1.00 1.00 1.10 0.76 1.00 1.10 1.00 0.80 1.00 1.00 1.00 5.5 4.1 5.3 5.3 4.1 4.1 5.5 5.5 4.1 4.1 4.1 5.0 8.1 5.0 6.3 4.0 4.1 4.1 4.1 4.1 7.5 5.5 6.7 6.7 5.5 5.5 7.5 7.5 5.5 5.5 5.5 7.6 9.5 7.0 8.9 5.0 5.8 5.8 5.8 5.8 3.9 4.9 5.9 4.9 5.9 5.9 3.8 3.8 3.8 3.8 3.8 4.8 3.8 5.9 6.0 6.0 3.9 3.9 3.9 3.9 4.1 5.1 6.1 5.1 6.1 6.1 4.1 4.1 4.1 4.1 4.1 5.4 4.1 6.1 6.6 6.1 4.1 4.1 4.1 4.1 Current Limit @ 23C Max. Volts Stock No. 754-1767 754-1771 754-1773 754-1775 754-1777 754-1779 754-1761 754-1763 754-1766 754-1768 754-1770 754-1772 754-1759 754-1774 754-1776 754-1778 754-1950 754-1951 754-1952 754-1953 Mfr.Os Type Package MF-LR190S MF-LR380 MF-LR450 MF-LR550 MF-LR600 MF-LR730 MF-LS070 MF-LS070S MF-LS100S MF-LS180 MF-LS180S MF-LS190 MF-LS190RU MF-LS260 MF-LS300 MF-LS340 MF-VS170 MF-VS210G MF-VS210S MF-VS210L OSO Standard Standard Standard Standard Standard Standard OSO OSO Standard OSO Standard Standard Standard Standard Standard Standard Standard OSO Standard Initial Resistance Min. Max. Hold 0.039 0.013 0.011 0.009 0.007 0.006 0.100 0.100 0.070 0.040 0.040 0.030 0.030 0.025 0.015 0.016 0.030 0.018 0.020 0.020 0.072 0.026 0.020 0.019 0.014 0.012 0.200 0.200 0.130 0.068 0.068 0.057 0.057 0.042 0.031 0.027 0.052 0.030 0.042 0.042 Trip 1.90 3.90 3.80 8.30 4.50 8.90 5.50 10.50 6.00 11.70 7.30 14.10 0.70 1.50 0.70 1.50 1.00 2.50 1.80 3.80 1.80 3.80 1.90 4.20 1.90 4.20 2.60 5.20 3.00 6.30 3.40 6.80 1.70 3.40 2.10 4.70 2.60 5.80 2.60 5.80 EACH 1-9 15 15 20 20 20 20 15 15 24 24 24 24 15 24 24 24 16 16 15 15 10-24 25-49 50-99 100-249 .53 .53 .53 .57 .57 .40 .52 .53 .53 .53 .53 .53 .53 .57 .57 .40 .57 .57 .57 .57 .46 .46 .46 .50 .50 .35 .50 .46 .46 .46 .46 .46 .46 .50 .50 .35 .50 .54 .54 .54 .43 .43 .43 .46 .46 .32 .49 .43 .43 .43 .43 .43 .43 .46 .46 .32 .46 .52 .52 .52 .39 .39 .39 .42 .42 .30 .48 .39 .39 .39 .39 .39 .39 .42 .42 .30 .42 .51 .51 .51 .36 .36 .36 .39 .39 .28 .47 .36 .36 .36 .36 .36 .36 .39 .39 .28 .39 .50 .50 .50 Surface Mount PTC Resettable Overcurrent Protectors Surface mount series of the resettable overcurrent protectors. These products are fully compatible with current industry standards. Packaged per EIA 481-2 standard. Applications are almost anywhere there is a low voltage power supply and a load to be protected. Uses include computers and peripherals, industrial, commercial or consumer electronics, and even automotive applications. ManufacturerOs literature available upon request. Dimensions N mm PTC Resettable Fuses Stock No. Axial leaded series of the resettable overcurrent protectors above. These products are fully compatible with current industry standards. They feature weldable nickel terminals and very low internal resistance. Excellent for use in rechargeable battery pack protection. Applications are almost anywhere there is a low voltage power supply and a load to be protected. Uses include computers and peripherals, industrial, commercial or consumer electronics, and even automotive applications. Material: Nickel. ManufacturerOs literature available upon request. Initial Resistance Min. Max. Hold Trip 0.40 0.32 0.15 0.11 0.04 5.00 1.30 1.00 0.45 0.21 0.20 0.35 0.50 0.75 1.10 0.40 0.70 1.00 1.50 2.20 30.0 6.0 15.0 13.2 6.0 EACH 1-9 10-24 25-49 50-99 100-249 .49 .49 .71 .53 .53 .43 .43 .46 .46 .45 .39 .39 .42 .42 .42 .36 .36 .39 .39 .39 .34 .34 .36 .36 .36 Mfr.Os Type B C Min. A Max. Max. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. MF-SM030-2 MF-SM050-2 MF-SM075-2 MF-SM100-2 MF-SM125-2 MF-SM150-2 MF-SM200-2 MF-SM250-2 MF-SM260-2 6.73 6.73 6.73 6.73 6.73 8.00 8.00 8.00 6.73 7.98 7.98 7.98 7.98 7.98 9.50 9.50 9.50 7.98 3.18 3.18 3.18 3.00 3.00 3.00 3.00 3.00 3.00 5.44 5.44 5.44 5.44 5.44 6.71 6.71 6.71 5.44 0.56 0.56 0.56 0.56 0.56 0.56 0.56 0.56 0.56 0.71 0.71 0.71 0.71 0.71 0.71 0.71 0.71 0.71 0.56 0.20 0.56 0.56 0.56 0.56 0.56 0.56 0.56 0.71 0.30 0.71 0.71 0.71 0.71 0.71 0.71 0.71 2.16 2.16 2.16 2.16 2.16 3.68 3.68 3.68 2.16 2.41 2.41 2.41 2.41 2.41 3.94 3.94 3.94 2.41 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 0.66 1.37 1.37 1.37 1.37 1.37 1.37 1.37 1.37 1.37 0.43 0.43 0.43 0.43 0.43 0.43 0.43 0.43 0.43 Stock No. Mfr.Os Type 754-1780 754-1782 754-1784 754-1786 754-1788 754-1790 754-1792 754-1794 754-1796 MF-SM030-2 MF-SM050-2 MF-SM075-2 MF-SM100-2 MF-SM125-2 MF-SM150-2 MF-SM200-2 MF-SM250-2 MF-SM260-2 Turn To Section 1 For Allied Office Addresses and Local Phone Numbers Initial Resistance D E Current Limit @ 23C Min. Max. Hold Trip 1.200 0.350 0.350 0.120 0.070 0.060 0.050 0.040 0.025 2.400 0.700 0.700 0.240 0.140 0.120 0.100 0.080 0.075 0.30 0.50 0.75 1.10 1.25 1.50 2.00 2.50 2.60 0.60 1.00 1.50 2.20 2.50 3.00 4.00 5.00 5.20 F H EACH Max. Volts 60 30 30 15 15 15 15 15 6 G 1-9 10-24 25-49 50-99 100-249 .75 .75 .75 1.11 .81 .86 1.21 1.11 .73 .67 .67 .67 1.00 .73 .78 1.09 1.00 .65 .61 .61 .61 .91 .67 .71 .99 .91 .59 .56 .56 .56 .83 .61 .65 .91 .83 .54 .52 .52 .52 .77 .56 .60 .84 .77 .50 ALLIED c 261 6