Bourns Multifuse(R) Shortform Catalog 2003 Reliable Electronic Solutions Multifuse(R) Products Bourns(R) Multifuse(R) family of Polymer Positive Applications Temperature Coefficient (PPTC) "resettable fuses" are used in a wide variety of circuit protection applications. * Computer * Battery * Automotive * Telecommunications * Industrial * Consumer Under fault conditions the device resistance will rise exponentially and remain in a "tripped" state, providing continuous circuit protection until the fault is removed. Once the fault is removed and the power cycled the device will return to its normal low resistance state. Features/Benefits * Resettable circuit protection * Agency approval - UL, CSA, TUV * Popular footprints and packaging options * Low resistance * Lead free options * Custom designs available What's New in this Edition * Telecom Rated Products * MF-R/90 * MF-R/250 * MF-R/600 What's Next * Full line of SMD lead-free products * MF-MSMF - Available 3rd Quarter 2003 Multifuse(R) Products - How They Work Amorphous Polymer Crystalline Polymer Non-conducting Carbon Chains Conducting Carbon Chains HOT COLD Multifuse(R) Products - How They're Used Log Resistance I=V/RMF RMF I +t I=V/RL VS RL Temperature PTC Response Characteristic Typical Circuit Application Definitions Product Selection Worksheet Agency Approvals Bourns(R) PTCs are certified under UL, CSA, IEC and TUV registration programs. 1. What is the normal circuit operating current (Ihold)_________ 2. What is the maximum circuit voltage (Vmax)______________ Current, Hold (Ihold) The maximum current a PTC device can pass without interruption. Current, Maximum (Imax) The maximum fault current a PTC device can withstand without damage at the rated voltage. Current, Trip (Itrip) The minimum current that will switch a PTC from the low resistance to the high resistance state. 3. What is the maximum fault current (Imax)________________ 4. What is the preferred form factor________________________ Note: Other factors including thermal derating and time to trip characteristics may be important application considerations. Please refer to the full Bourns(R) data sheet of each product at www.bourns.com. How To Order MF - R 012/250 U - A 05 - 2 (R) Fault Current The peak current that flows through a PTC or wire during a short circuit or arc back. Positive Temperature Coefficient (PTC) A characteristic of the PTC device that describes the large increase in resistance as the device reaches its switching (trip) temperature. Resistance, Post Trip (R1max) The maximum resistance one hour after a PTC device has been tripped and power has been removed. Resistance, Post Reflow (R1max) The maximum resistance one hour after a PTC surface mount device has been reflow soldered. Voltage, Maximum (Vmax) The maximum voltage a PTC device can withstand without damage at the rated current. Multifuse Product Designator Series R RX SM MSMD ESMD USMD S LR LS SVS VSN VS = Radial Leaded = Radial Leaded = Surface Mount = Surface Mount = Surface Mount = Surface Mount = Axial Leaded Strap = Axial Leaded Strap = Axial Leaded Strap = Axial Leaded Strap = Axial Leaded Strap = Axial Leaded Strap Hold Current, Ihold Voltage Options: Max. Interrupt Voltage, V Construction Options: N = Narrow Device Option (3.6 mm)* S = Slotted Lead Option (one side)* SS = Slotted Lead Option (two sides)* L = Longer Lead Option* U = Uncoated T = Pretripped ** Resistance Sorted** (see individual data sheets) Agency File Numbers (R) (R) TUV Rheinland Product Safety UL File Number ............................................E 174545S Resistance Bins of 0.5 ** 05 = 0.5 Packaging Options - 0 = Bulk Packaging - 2 = Tape and Reel - AP = Ammo-Pak CSA File Number ..........................................CA 110338 TUV File Number ..........................................R2057213 *Axial Leaded Strap products only. **Telecom Radial Leaded products only. Radial Leaded Low Voltage Products Style 1 Style 2 Style 3 A A Style 4 Style 5 A A A Features * Bulk and Tape and Reel Packaging * Industry Standard Sizes Applications B B B B * Computers and Peripherals * General Electronics * Automotive * Consumer Appliances * Electronic Toys B C C C MF-R Series Radial Leaded 16-60 Volts 0.05-11 Amps Hold Current 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance Ihold Amperes at 23 C V max. Volts I max. Amps MF-R005 0.05 60 40 7.3 22.0 MF-R010 0.10 60 40 2.50 7.50 MF-R017 0.17 60 40 2.00 8.00 MF-R020 0.20 60 40 1.50 4.40 MF-R025 0.25 60 40 1.00 3.00 MF-R030 0.30 60 40 0.76 2.10 MF-R040 0.40 60 40 0.52 1.29 MF-R050 0.50 60 40 0.41 1.17 MF-R065 0.65 60 40 0.27 0.72 MF-R075 0.75 60 40 0.18 0.60 MF-R090 0.90 60 40 0.14 0.47 MF-R090-0-9 0.90 30 40 0.07 0.22 MF-R110 1.10 30 40 0.10 0.27 MF-R135 1.35 30 40 0.065 0.17 MF-R160 1.60 30 40 0.055 0.15 MF-R185 1.85 30 40 0.040 0.11 MF-R250 2.50 30 40 0.025 0.07 MF-R250-0-10 2.50 30 40 0.025 0.07 MF-R300 3.00 30 40 0.020 0.08 MF-R400 4.00 30 40 0.010 0.05 MF-R500 5.00 30 40 0.010 0.05 MF-R600 6.00 30 40 0.005 0.04 MF-R700 7.00 30 40 0.005 0.03 MF-R800 8.00 30 40 0.005 0.03 MF-R900 9.00 30 40 0.005 0.02 MF-R1100 11.00 16 100 0.003 0.014 Model C C MF-RX Series Radial Leaded Dimensions mm/(in) Style A Max. B Max. C Nom. 8.0 (0.315) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.9 (0.311) 9.7 (0.382) 10.4 (0.409) 11.7 (0.461) 7.4 (0.291) 8.9 (0.350) 8.9 (0.350) 10.2 (0.402) 12.0 (0.472) 12.0 (0.472) 11.4 (0.449) 12.0 (0.472) 14.4 (0.567) 17.4 (0.685) 19.3 (0.760) 22.1 (0.870) 24.2 (0.953) 24.2 (0.953) 24.2 (0.953) 8.3 (0.327) 12.7 (0.500) 12.7 (0.500) 12.7 (0.500) 12.7 (0.500) 13.4 (0.528) 13.7 (0.539) 13.7 (0.539) 15.2 (0.598) 16.0 (0.630) 16.7 (0.657) 12.2 (0.480) 14.0 (0.551) 18.9 (0.744) 16.8 (0.661) 18.4 (0.724) 18.3 (0.720) 18.3 (0.720) 18.3 (0.720) 24.8 (0.976) 24.9 (0.980) 31.9 (1.256) 29.8 (1.173) 32.9 (1.295) 32.9 (1.295) 32.9 (1.295) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) Model 60 Volts 1.10-3.75 Amps Hold Current 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance Ihold Amperes at 23 C V max. Volts I max. Amps 4 MF-RX110 1.10 60 40 0.15 0.38 1 MF-RX135 1.35 60 40 0.12 0.30 1 MF-RX160 1.60 60 40 0.09 0.22 1 MF-RX185 1.85 60 40 0.08 0.19 1 MF-RX250 2.50 60 40 0.05 0.13 1 MF-RX300 3.00 60 40 0.04 0.10 1 MF-RX375 3.75 60 40 0.03 0.08 1 1 1 1 3 1 1 1 1 2 3 2 2 2 2 2 2 2 2 Dimensions mm/(in) Style A Max. B Max. C Nom. 13.0 (0.512) 14.5 (0.571) 16.3 (0.642) 17.8 (0.701) 21.3 (0.839) 24.9 (0.980) 28.4 (1.118) 18.0 (0.709) 19.6 (0.772) 21.3 (0.839) 22.9 (0.902) 26.4 (1.039) 30.0 (1.181) 33.5 (1.319) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 10.2 (0.402) 10.2 (0.402) 10.2 (0.402) 5 5 5 5 5 5 5 MF-R and MF-RX Series are available lead-free on request. Contact your nearest Bourns representative. Surface Mount Low Voltage Products Style 1 Style 2 Style 3 C A A C C B A Side View End View Top and Bottom View Side View Top and Bottom View MF-SM Series (2920 package) 6-60 Volts Surface Mount 0.30-2.60 Amps Hold Current 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance Ihold Amperes at 23 C V max. Volts I max. Amps MF-SM030 0.30 60 40 0.90 4.80 MF-SM050 0.50 60 40 0.35 1.40 MF-SM075 0.75 30 80 0.23 1.00 MF-SM100 1.10 30 80 0.12 0.48 MF-SM100/33 1.10 33 40 0.12 0.41 MF-SM125 1.25 15 100 0.07 0.25 MF-SM260 2.60 6 100 0.025 0.075 Model Style B Max. C Max. 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 7.98 (0.314) 3.18 (0.125) 3.18 (0.125) 3.18 (0.125) 3.00 (0.118) 3.00 (0.118) 3.00 (0.118) 3.00 (0.118) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 5.44 (0.214) 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance V max. Volts I max. Amps MF-SM150 1.50 15 100 0.06 0.25 MF-SM150/33 1.50 33 40 0.06 0.23 MF-SM185/33 1.80 33 40 0.04 0.15 MF-SM200 2.00 15 100 0.045 0.125 MF-SM250 2.50 15 100 0.024 0.085 Model Model Ihold Amperes V max. at 23 C Volts MF-MSMD010 0.10 60.0 40 0.70 15.00 MF-MSMD014 0.14 60.0 40 0.40 6.50 MF-MSMD020 0.20 30.0 80 0.40 6.00 MF-MSMD030 0.30 30.0 10 0.30 3.00 MF-MSMD050 0.50 15.0 100 0.15 1.00 MF-MSMD075 0.75 13.2 100 0.11 0.45 MF-MSMD075/24* 0.75 24.0 40 0.11 0.45 MF-MSMD110 1.10 6.0 100 0.04 0.21 MF-MSMD110/16 1.10 16.0 100 0.04 0.21 MF-MSMD125 1.25 6.0 100 0.035 0.14 MF-MSMD150 1.50 6.0 100 0.03 0.120 MF-MSMD160 1.60 8.0 100 0.035 0.099 MF-MSMD200 2.00 6.0 100 0.020 0.100 MF-MSMD260 2.60 6.0 100 0.015 0.080 *UL pending Model C Max. 9.50 (0.374) 9.50 (0.374) 9.50 (0.374) 9.50 (0.374) 9.50 (0.374) 3.00 (0.118) 3.00 (0.118) 3.00 (0.118) 3.00 (0.118) 3.00 (0.118) 6.71 (0.264) 6.71 (0.264) 6.71 (0.264) 6.71 (0.264) 6.71 (0.264) 30.0 10 2.80 50.0 1 MF-USMD010 0.10 30.0 10 0.80 15.0 1 MF-USMD020 0.20 30.0 10 0.40 5.00 1 MF-USMD035 0.35 6.0 40 0.20 1.30 1 MF-USMD050 0.50 13.2 40 0.18 0.90 1 MF-USMD075 0.75 6.0 40 0.07 0.450 1 MF-USMD110 1.10 6.0 40 0.05 0.210 1 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 0.81 (0.032) 0.81 (0.032) 0.81 (0.032) 0.81 (0.032) 0.62 (0.024) 0.62 (0.024) 0.62 (0.024) 0.62 (0.024) 0.62 (0.024) 0.48 (0.019) 0.48 (0.019) 0.48 (0.019) 0.48 (0.019) 0.48 (0.019) B Max. C Max. 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 3.43 (0.135) 2.80 (0.110) 2.80 (0.110) 2.80 (0.110) 2.80 (0.110) 2.80 (0.110) 2.80 (0.110) 2.80 (0.110) 0.85 (0.033) 0.85 (0.033) 0.85 (0.033) 0.62 (0.024) 0.62 (0.024) 0.62 (0.024) 0.48 (0.019) 2 2 2 2 2 2 2 Model MF-ESMD190 Ihold Amperes V max. at 23 C Volts 1.9 16 Initial 1 Hour (R1) Resistance Post-Trip Resistance I max. Ohms at 23 C Amps Min. Max. 100 0.010 0.08 Dimensions mm/(in) Style A Max. B Max. C Max. 11.61 5.33 0.63 (0.457) (0.210) (0.025) 2 1 1 1 Style C Max. Style A Max. MF-ESMD Series (Low Resistance, Low Trip Temp.) 16 Volts Surface Mount 1.9 Amps Hold Current Available 3rd Quarter 2003! Consult factory for details. MF-MSMF Series (1812 package) 6-13.2 Volts Surface Mount 0.50-1.50 Amps Hold Current Model B Max. Dimensions mm/(in) 1 Dimensions mm/(in) A Max. Initial 1 Hour (R1) Resistance Post-Trip Resistance I max. Ohms at 23 C Amps Min. Max. 0.05 Style B Max. Ihold Amperes V max. at 23 C Volts MF-USMD005 MF-MSMD Series (1812 package) 6-60 Volts Surface Mount 0.10-2.60 Amps Hold Current Initial 1 Hour (R1) Resistance Post-Trip Resistance I max. Ohms at 23 C Amps Min. Max. MF-USMD Series (1210 package) 6-30 Volts Surface Mount 0.05-1.10 Amps Hold Current Dimensions mm/(in) A Max. * Computers and Peripherals * General Electronics * Automotive 1 MF-SM Series (3425 package) 15-33 Volts Surface Mount 1.50-2.50 Amps Hold Current Ihold Amperes at 23 C Side View Dimensions mm/(in) A Max. * Tape and Reel Packaging * Industry Standard Sizes Applications B B Features Ihold Amperes V max. at 23 C Volts Initial 1 Hour (R1) Resistance Post-Trip Resistance I max. Ohms at 23 C Amps Min. Max. MF-MSMF050 0.50 15.0 100 0.15 1.00 2 MF-MSMF075 0.75 13.2 100 0.11 0.45 2 MF-MSMF110 1.10 6.0 100 0.04 0.21 2 MF-MSMF150 1.50 6.0 100 0.03 0.120 2 2 2 2 2 2 2 2 2 2 2 Dimensions mm/(in) Style A Max. B Max. C Max. 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 4.73 (0.186) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 3.41 (0.134) 0.75 (0.030) 0.75 (0.030) 0.75 (0.030) 0.75 (0.030) 3 3 3 3 Strap Products Standard Style Features "S" Style SLIT 4.0 0.5 X NOMINAL (.020) (.157) A * Axial/Radial Leaded * Weldable Nickel Terminal * Very Low Internal Resistance "RU" Style A A Applications B C C C MF-SVS Series (Lowest Available Resistance) 10 Volts Axial Leaded Strap 1.7-2.3 Amps Hold Current Model Ihold Amperes V max. at 23 C Volts 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance I max. Amps MF-SVS170 1.7 10 100 0.018 0.064 MF-SVS170N 1.7 10 100 0.018 0.064 MF-SVS175 1.75 10 100 0.017 0.060 MF-SVS175N 1.75 10 100 0.017 0.060 MF-SVS175NL 1.75 10 100 0.017 0.060 MF-SVS210 2.1 10 100 0.010 0.040 MF-SVS210N 2.1 10 100 0.010 0.040 MF-SVS230 2.3 10 100 0.010 0.036 MF-SVS230N 2.3 10 100 0.010 0.036 Model 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Style A Max. B Max. C Max. 18.0 (0.709) 24.0 (0.945) 18.0 (0.709) 24.0 (0.945) 28.0 (1.102) 23.1 (0.909) 32.0 (1.260) 23.1 (0.909) 32.0 (1.260) 5.5 (0.216) 3.9 (0.153) 5.5 (0.216) 3.9 (0.153) 3.9 (0.153) 5.5 (0.216) 3.9 (0.153) 5.5 (0.216) 3.9 (0.153) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) Initial Resistance I max. Amps MF-VS170 1.7 16 100 0.030 0.105 MF-VS170S 1.7 16 100 0.030 0.105 MF-VS210 2.1 16 100 0.018 0.060 MF-VS210L 2.1 16 100 0.018 0.060 MF-VS210S 2.1 16 100 0.018 0.060 MF-VS240 2.4 16 100 0.014 0.052 MF-VS240S 2.4 16 100 0.014 0.052 B Max. C Max. 18.0 (0.709) 18.0 (0.709) 23.1 (0.909) 26.5 (1.043) 23.1 (0.909) 26.2 (1.031) 26.2 (1.031) 5.5 (0.217) 5.5 (0.217) 5.5 (0.217) 5.5 (0.217) 5.5 (0.217) 5.5 (0.217) 5.5 (0.217) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) 0.9 (0.035) Model 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. I max. Amps MF-VS170N 1.7 12 100 0.030 0.105 MF-VS175NL 1.75 12 100 0.029 0.102 MF-VS210N 2.1 12 100 0.018 0.060 Style A Max. B Max. C Max. 22.1 (0.870) 22.1 (0.870) 23.1 (0.909) 23.1 (0.909) 26.0 (1.024) 26.0 (1.024) 37.0 (1.457) 26.0 (1.024) 5.2 (0.205) 5.2 (0.205) 5.2 (0.205) 5.2 (0.205) 7.5 (0.295) 10.5 (0.414) 7.5 (0.295) 14.5 (0.571) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.90 15 100 0.039 0.102 Std. MF-LR190S 1.90 15 100 0.039 0.102 Std. MF-LR260 2.60 15 100 0.020 0.063 Std. MF-LR260S 2.60 15 100 0.020 0.063 Std. MF-LR380 3.80 15 100 0.013 0.037 Std. MF-LR450 4.50 16 100 0.011 0.028 Std. MF-LR550 5.50 10 100 0.009 0.022 Std. MF-LR600 6.00 10 100 0.007 0.016 Std. MF-LS Series (Lower Trip Temperature) 15-24 Volts Axial Leaded Strap 0.7-3.4 Amps Hold Current Model A Max. I max. Amps Dimensions mm/(in) MF-LR190 Dimensions mm/(in) Initial Resistance Model Ihold Amperes V max. at 23 C Volts 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance Std. Ihold Amperes V max. at 23 C Volts 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance I max. Amps Style MF-LS070 0.7 15 100 0.100 0.340 Std. MF-LS070S 0.7 15 100 0.100 0.340 S MF-LS100S 1.0 24 100 0.070 0.260 Std. MF-LS180 1.8 24 100 0.040 0.120 Std. MF-LS180L 1.8 24 100 0.040 0.120 S MF-LS180S 1.8 24 100 0.040 0.120 Std. MF-LS190 1.9 24 100 0.030 0.100 MF-LS190RU 1.9 15 100 0.030 0.100 MF-LS260 2.6 24 100 0.025 0.076 MF-LS300 3.0 24 100 0.015 0.055 MF-LS340 3.4 24 100 0.016 0.050 S MF-VSN Series (Low Resistance Narrow) 12 Volts Axial Leaded Strap 1.7-2.1 Amps Hold Current Ihold Amperes V max. at 23 C Volts MF-LR Series (Low Resistance) 10-16 Volts Axial Leaded Strap 1.90-6.00 Amps Hold Current Dimensions mm/(in) MF-VS Series (Low Resistance & Low Temp.) 16 Volts Axial Leaded Strap 1.7-2.4 Amps Hold Current Ihold Amperes V max. at 23 C Volts * Rechargeable Battery Packs for Cellular Phones & Laptop Computers B B Dimensions mm/(in) Style A Max. B Max. C Max. 24.0 (0.945) 28.0 (1.102) 32.0 (1.260) 3.9 (0.154) 3.9 (0.154) 3.9 (0.154) 0.9 Std. (0.035) 0.9 Std. (0.035) 0.9 Std. (0.035) MF-S Series (Standard) Axial Leaded Strap S Std. S Std. Std. Std. Std. Dimensions mm/(in) Style A Max. B Max. C Max. 22.1 (0.870) 22.1 (0.870) 23.1 (0.909) 26.0 (1.024) 37.5 (1.48) 26.0 (1.024) 23.4 (0.921) 20.8 (0.819) 26.0 (1.024) 31.8 (1.252) 26.0 (1.024) 5.2 (0.205) 5.2 (0.205) 5.2 (0.205) 5.2 (0.205) 5.6 (0.22) 5.2 (0.205) 11.0 (0.433) 14.3 (0.563) 11.9 (0.469) 13.5 (0.531) 15.9 (0.626) 1.2 (0.047) 1.2 (0.047) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.0 (0.039) 1.1 (0.043) 0.76 (0.030) 1.0 (0.039) 1.1 (0.043) 1.0 (0.039) Std. S S Std. Std. S Std. RU Std. Std. Std. 15-30 Volts 1.20-4.20 Amps Hold Current 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance Ihold Amperes at 23 C V max. Volts I max. Amps MF-S120 1.20 15 100 0.085 0.220 MF-S120S 1.20 15 100 0.085 0.220 MF-S150 1.50 15 100 0.050 0.110 MF-S175 1.75 15 100 0.050 0.120 MF-S175S 1.75 15 100 0.050 0.120 MF-S200 2.00 30 100 0.030 0.080 MF-S350 3.50 30 100 0.017 0.040 MF-S420 4.20 30 100 0.012 0.040 Model Std. Dimensions mm/(in) Style A Max. B Max. C Max. 22.1 (0.870) 22.1 (0.870) 23.4 (0.921) 23.1 (0.909) 23.1 (0.909) 23.4 (0.921) 31.8 (1.252) 32.4 (1.276) 5.2 (0.205) 5.2 (0.205) 11.0 (0.433) 5.2 (0.205) 5.2 (0.205) 11.0 (0.433) 13.5 (0.531) 13.6 (0.535) 1.0 (0.039) 1.0 (0.039) 1.1 (0.043) 1.0 (0.039) 1.0 (0.039) 1.1 (0.043) 1.1 (0.043) 1.1 (0.043) Std. S Std. Std. S Std. Std. Std. Telecom Products Style 1 Style 2 A Features * Ability to Withstand Lightning Surge * Ability to Withstand AC Power Cross * Available in Matched Resistance "Bins" Style 3 A C C B Applications B B * CPE and Central Office * Access Equipment * Hybrid-Fiber Coax A C MF-R/250 Series MF-R/90 Series Radial Leaded 90 Volts 0.55-0.75 Amps Hold Current 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance Ihold Amperes at 23 C V max. Volts I max. Amps MF-R055/90 0.55 90 10 0.45 2.0 MF-R055/90U 0.55 90 10 0.45 2.0 MF-R075/90 0.75 90 10 0.37 1.65 Model Model Ihold Amperes V max. I max. at 23 C Volts Amps 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. 0.15 60 3.0 6.0 22.0 MF-R015/600-A 0.15 60 3.0 7.0 20.0 MF-R015/600-B 0.15 60 3.0 9.0 22.0 MF-R015/600-F 0.15 60 3.0 7.0 22.0 MF-R016/600 0.16 60 3.0 4.0 18.0 MF-R016/600-A 0.16 60 3.0 4.0 16.0 MF-R016/600-1 0.16 60 3.0 4.0 17.0 MF-SM013/250 Series Surface Mount Model Style A Max. B Max. C Nom. 10.9 (0.43) 10.3 (0.4) 11.9 (0.47) 14.0 (0.55) 10.3 (0.4) 15.5 (0.61) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) Initial Resistance MF-R015/600 0.08 60 3.0 14.0 33.0 1 MF-R008/250 0.08 60 3.0 15.0 33.0 1 MF-R011/250U 0.11 60 3.0 5.0 16.0 MF-R012/250 0.12 60 3.0 4.0 16.0 MF-R012/250-A 0.12 60 3.0 7.0 16.0 MF-R012/250-C 0.12 60 3.0 5.5 14.0 MF-R012/250-F 0.12 60 3.0 6.0 16.0 MF-R012/250-1 0.12 60 3.0 6.0 16.0 MF-R012/250-2 0.12 60 3.0 8.0 16.0 MF-R012/250U 0.12 60 3.0 6.0 16.0 MF-R014/250 0.145 60 3.0 3.0 12.0 MF-R014/250-A 0.145 60 3.0 3.0 12.0 MF-R014/250-B 0.145 60 3.0 4.5 14.0 MF-R014/250U 0.145 60 3.0 3.5 12.0 MF-R018/250U 0.18 60 10.0 0.8 4.0 Style B Max. C Max. 13.5 (0.531) 13.5 (0.531) 13.5 (0.531) 13.5 (0.531) 16.0 (0.629) 16.0 (0.629) 16.0 (0.629) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 12.6 (0.496) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 6.0 (0.236) 2 2 2 2 2 2 2 MF-SM013/250-2 0.13 60 3.0 6.5 20.0 MF-SM013/250-A-2 0.13 60 3.0 6.5 20.0 MF-SM013/250-B-2 0.13 60 3.0 9.0 20.0 MF-SM013/250-C-2 0.13 60 3.0 7.0 20.0 Dimensions mm/(in) Style A Max. B Max. C Max. 9.4 (0.370) 9.4 (0.370) 9.4 (0.370) 9.4 (0.370) 3.4 (0.133) 3.4 (0.133) 3.4 (0.133) 3.4 (0.133) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 7.4 (0.291) 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance MF-R008/250U Dimensions mm/(in) A Max. Model Ihold Amperes V max. I max. at 23 C Volts Amps 60 Volts 250 Vrms short duration interrupt 0.08-0.18 Amps Hold Current 1 60 Volts 250 Vrms short duration interrupt 0.13 Amps Hold Current 1 Hour (R1) Initial Resistance Post-Trip Ihold Resistance Amperes V max. I max. Ohms at 23 C at 23 C Volts Amps Min. Max. Radial Leaded Dimensions mm/(in) 60 Volts 600 Vrms short duration interrupt 0.15-0.16 Amps Hold Current MF-R/600 Series Radial Leaded (High Lightning Withstand) MF-RX/250 Series (Fast Trip, Small Package) Radial Leaded Model Ihold Amperes V max. I max. at 23 C Volts Amps Dimensions mm/(in) Style A Max. B Max. C Max. 6.2 (0.244) 7.5 (0.295) 6.2 (0.244) 7.5 (0.295) 7.5 (0.295) 7.5 (0.295) 7.5 (0.295) 7.5 (0.295) 7.5 (0.295) 6.2 (0.244) 7.5 (0.295) 7.5 (0.295) 7.5 (0.295) 6.2 (0.244) 10.4 (0.409) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 11.5 (0.453) 12.6 (0.496) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 60 Volts 250 Vrms short duration interrupt 0.12-0.18 Amps Hold Current 1 Hour (R1) Post-Trip Resistance Ohms at 23 C Min. Max. Initial Resistance 3 MF-RX012/250 0.12 60 3.0 4.0 16.0 3 MF-RX012/250-A 0.12 60 3.0 7.0 16.0 3 MF-RX012/250-C 0.12 60 3.0 5.5 14.0 3 MF-RX012/250-F 0.12 60 3.0 6.0 16.0 MF-RX012/250-1 0.12 60 3.0 6.0 16.0 MF-RX012/250-2 0.12 60 3.0 8.0 16.0 MF-RX012/250-T 0.12 60 3.0 7.0 16.0 MF-RX012/250U 0.12 60 3.0 6.0 16.0 MF-RX014/250 0.145 60 3.0 3.0 14.0 MF-RX014/250-A 0.145 60 3.0 3.0 12.0 MF-RX014/250-B 0.145 60 3.0 4.5 14.0 MF-RX014/250-T 0.145 60 3.0 5.4 14.0 MF-RX014/250U 0.145 60 3.0 3.5 12.0 MF-RX018/250 0.18 60 10.0 0.8 4.0 MF-RX018/250U 0.18 60 10.0 0.8 4.0 Dimensions mm/(in) Style A Max. B Max. C Nom. 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.0 (0.236) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.5 (0.256) 6.0 (0.236) 11.0 (0.433) 10.4 (0.409) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 10.0 (0.394) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 11.0 (0.433) 10.0 (0.394) 13.6 (0.535) 12.6 (0.496) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 5.1 (0.201) 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 Worldwide Sales Offices Country Phone Fax Benelux: China: France: Germany: Hong Kong: Ireland: Italy: Japan: Singapore: Switzerland: Taiwan: UK: USA: +31-70-3004333 +86-21-64821250 +33-254-735151 +49-69-80078212 +852-2411 5599 +44-1276-691087 +39-02-38900041 +81-49-269 3204 +65-63461933 +41-41-7685555 +886-2-25624117 +44-1276-691087 +1-909-781-5500 +31-70-3004345 +86-21-64821249 +33-254-735156 +49-69-80078299 +852-2412 3611 +44-1276-691088 +39-02-38900042 +81-49-269 3297 +65-63461911 +41-41-7685510 +886-2-25624116 +44-1276-691088 +1-909-781-5006 Non-Listed European Countries: +41- 41-7685555 +41- 41-7685510 Technical Assistance Region Phone Fax Asia-Pacific: Europe: North America: +886-2-25624117 +41- 41-7685555 +1-909-781-5500 +886-2-25624116 +41- 41-7685510 +1-909-781-5700 www.bourns.com Bourns(R) products are available through an extensive network of manufacturer's representatives, agents and distributors. To obtain technical applications assistance, a quotation, or to place an order, contact a Bourns representative in your area. Circuit Protection Solutions "Bourns"and "Multifuse" are registered trademarks of Bourns, Inc. in the U.S. and other countries. COPYRIGHT(c) 2003, BOURNS, INC. * LITHO IN U.S.A. * SP 07/03 * 25M/MF0314