Bourns Multifuse Automotive Short Form ® ® Polymer PTC Thermistors for Automotive Overcurrent Solutions Bourns® Multifuse® – Resettable Fuse Protection Multifuse® Products – What They Are Bourns® Multifuse® family of Polymer Positive Temperature Coefficient (PPTC) Resettable Fuses are used in a wide variety of circuit protection applications. 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, the power cycled the device will return to its normal low resistance state. Multifuse® Products – How They Work Amorphous Polymer Crystalline Polymer Non-conducting Carbon Chains Conducting Carbon Chains hot cold Multifuse® Products – How They Are Used Log Resistance Log Resistance I=V/RMF I=V/RL I=V/RMF I RMF I +tϒ I=V/RL VS VS RMF +tϒ RL Temperature Temperature PTC ResponsePTC Characteristic Response Characteristic Typical CircuitTypical Application Circuit Application RL Bourns® Automotive Multifuse® Products Multifuse® Products – Automotive Applications As the number of electronic safety, comfort control, and power management systems has increased, the need for integrated reliable circuit protection solutions has evolved into a critical design feature on all new automotive platforms. Bourns, Inc. has developed its line of Multifuse® Polymer PTC Resettable Fuses to help automotive manufacturers and designers meet this need. Typical examples of the electronic circuits where Bourns® Multifuse® products can be seen are: • Under the hood applications with new high temperature polymer PTC resettable fuses • Steering column control modules • Alarm modules • Instrument panel/cluster protection • Power Bus (e.g. AS System) - node protection • Climate control units • DC motor protection • Window lifts Multifuse® Products – Features for Automotive Applications • Resettable overcurrent protection – offers greater reliability, longer part life and Multifuse® Polymer PTC Resettable Fuses can be located close to the load being protected instead of traditionally locating fuses in a fuse box. • ISO/TS 16949 Certified – September 2005 sees the Bourns, Inc. production facility for the Multifuse® Polymer PTC Resettable Fuses certified to ISO/TS 16949. Together with ISO 9001:2000, ISO/TS 16949 specifies the quality system requirements for the design, development, production, installation and servicing of automotive related products. • AEC Certification - Bourns® Multifuse® family of Polymer Positive Temperature Coefficient (PPTC) Resettable Fuses can be certified to AEC-Q200-Rev B. This specification defines the stress test requirements and reference test conditions for qualification of passive electrical devices in automotive applications as defined by a committee of automotive companies. • RoHS compliant – All Bourns® Multifuse® Polymer Positive Temperature Coefficient (PPTC) Resettable Fuses are RoHS compliant as standard. Multifuse® Products – What’s New in this Edition? • MF-RHT Series – High temperature radial through-hole product series • MF-SMHT Series – High temperature surface mount product series • MF-RG Series – 16 V radial through-hole product series. Multifuse® Products – Publications Please visit our web site for an up-to-date list of Multifuse® product related publications. Radial Leaded Low Voltage Products Style 1 Style 2 Style 3 A A A B B Style 4 Style 5 A A B B B C C C C C MF-RHT Series Style 1 Style 2 Radial Leaded High Temperature C Operating Temperature -40Style °C 3~ 125 °C A C A 1 Hour (R1) Initial Post-TripDimensions B Resistance ModelIhold ResistanceB mm/(in)Style A Amperes V max. I max. Ohms at 23 °C Volts Amps Min. A Max. B Max.Top and C Nom. Side Viewat 23 °C End View Top and BottomMax. View Side View Bottom View MF-RHT070 0.7 16 40 0.3 0.8 MF-RHT450 4.5 16 100 0.022 0.054 MF-RHT650 6.5 16 100 0.011 0.026 MF-RHT750 7.5 16 100 0.0094 0.022 MF-RHT1300 13 16 100 0.0041 0.01 MF-RG Series Radial Leaded 16 V 6.8610.8 5.1 ±0.73 (0.27)(0.425) (0.201 ±0.028) 10.415.6 5.1 ±0.7 2 (0.41) (0.61) (0.201 ±0.028) 12.722.2 5.1 ±0.7 2 (0.5) (0.88) (0.201 ±0.028) 1423.5 5.1 ±0.7 2 (0.55) (0.93) (0.201 ±0.028) 23.528.7 10.2 ± 0.7 2 (0.925) (1.17) (0.402 ±0.028) Operating Temperature -40 °C ~ 85 °C 1 Hour (R1) Initial Post-TripDimensions Resistance ModelIhold Resistance mm/(in)Style Amperes V max. I max. Ohms at 23 °C at 23 °C Volts Amps Min. Max. A Max. B Max. C Nom. MF- RG300 3.0 16 100 0.038 0.0975 MF- RG500 5.0 16 100 0.015 0.034 MF-RX/72 Series Radial Leaded 72V 7.111.0 5.1 ±0.7 2 (0.28) (0.43) (0.201 ±0.028) 10.414.3 5.1 ±0.7 2 (0.41) (0.56) (0.201 ±0.028) Operating Temperature -40 °C ~ 85 °C 1 Hour (R1) Initial Post-TripDimensions Resistance ModelIhold Resistance mm/(in)Style Amperes V max. I max. Ohms at 23 °C at 23 °C Volts Amps Min. Max. A Max. B Max. C Nom. MF-RX110/72 1.1 72 40 0.15 0.38 MF-RX135/72 1.35 72 40 0.12 0.30 MF-RX160/72 1.60 72 40 0.09 0.22 MF-RX185/72 1.85 72 40 0.08 0.19 MF-RX250/72 2.50 72 40 0.05 0.13 MF-RX300/72 3.00 72 40 0.04 0.10 MF-RX375/72 3.75 72 40 0.03 0.08 10.8416.85.1 ±0.72 (0.427) (0.661) (0.201 ±0.028) 12.2618.35.1 ±0.72 (0.483) (0.720) (0.201 ±0.028) 13.9419.95.1 ±0.72 (0.549) (0.785) (0.201 ±0.028) 15.1821.25.1 ±0.72 (0.598) (0.834) (0.201 ±0.028) 17.8423.810.2 ±0.72 (0.702) (0.939) (0.402 ±0.028) 20.6726.710.2 ±0.72 (0.814) (1.050) (0.402 ±0.028) 23.5129.610.2 ±0.72 (0.926) (1.162) (0.402 ±0.028) MF-R Series Radial Leaded 16 ~ 60 Volts C B Side View Operating Temperature -40 °C ~ 85 °C 1 Hour (R1) Initial Post-TripDimensions Resistance ModelIhold Resistance mm/(in)Style Amperes V max. I max. Ohms at 23 °C at 23 °C Volts Amps Min. Max. A Max. B Max. C Nom. MF-R005 0.0560 40 7.3 22.08.08.35.14 (0.315)(0.327)(0.201) 7.412.75.1 MF-R010 0.1060 40 2.50 7.50 1 (0.291)(0.500)(0.201) 7.412.75.1 MF-R017 0.1760 40 2.00 8.00 1 (0.291)(0.500)(0.201) 7.412.75.1 MF-R020 0.2060 40 1.50 4.40 1 (0.291)(0.500)(0.201) 7.412.75.1 MF-R025 0.2560 40 1.00 3.00 1 (0.291)(0.500)(0.201) 7.413.45.1 MF-R030 0.3060 40 0.76 2.10 1 (0.291)(0.528)(0.201) 7.413.75.1 MF-R040 0.4060 40 0.52 1.29 1 (0.291)(0.539)(0.201) 7.913.75.1 MF-R050 0.5060 40 0.41 1.17 1 (0.311)(0.539)(0.201) 9.715.25.1 MF-R065 0.6560 40 0.27 0.72 1 (0.382)(0.598)(0.201) 10.416.0 5.1 MF-R075 0.7560 40 0.18 0.60 1 (0.409)(0.630)(0.201) 11.716.7 5.1 MF-R090 0.9060 40 0.14 0.47 1 (0.461)(0.657)(0.201) 7.412.25.1 MF-R090-0-90.90 30 40 0.07 0.22 3 (0.291)(0.480)(0.201) 8.914.05.1 MF-R110 1.1030 40 0.10 0.27 1 (0.350)(0.551)(0.201) 8.918.95.1 MF-R135 1.3530 40 0.065 0.17 1 (0.350)(0.744)(0.201) 10.216.8 5.1 MF-R160 1.6030 40 0.055 0.15 1 (0.402)(0.661)(0.201) 12.018.4 5.1 MF-R185 1.8530 40 0.040 0.11 1 (0.472)(0.724)(0.201) 12.018.3 5.1 MF-R250 2.5030 40 0.025 0.07 2 (0.472)(0.720)(0.201) 12.018.3 5.1 MF-R250-0-102.50 30 40 0.025 0.07 3 (0.472)(0.720)(0.201) 12.018.3 5.1 MF-R300 3.0030 40 0.020 0.08 2 (0.472)(0.720)(0.201) 14.424.8 5.1 MF-R400 4.0030 40 0.010 0.05 2 (0.567)(0.976)(0.201) 17.424.910.2 MF-R500 5.0030 40 0.010 0.05 2 (0.685)(0.980)(0.402) 19.331.910.2 MF-R600 6.0030 40 0.005 0.04 2 (0.760)(1.256)(0.402) 22.129.810.2 MF-R700 7.0030 40 0.005 0.03 2 (0.870)(1.173)(0.402) 24.2 32.9 10.2 MF- R800 8.0 30 40 0.005 0.03 2 (0.953)(1.295)(0.402) 24.232.910.2 MF-R900 9.0030 40 0.005 0.02 2 (0.953)(1.295)(0.402) 24.232.910.2 MF-R1100 11.0016 100 0.003 0.014 2 (0.953)(1.295)(0.402) C C C C C Surface Mount Low Voltage Products Style 1 C Style 2 Style 3 A C A C B B B A Side View End View Top and Bottom View Side View Top and Bottom View Side View MF-SMHT Series (2920 & 3425 package) Operating Temperature Surface Mount High Temperature-40 °C ~ 125 °C MF-MSMF Series (1812 package) Operating Temperature Surface Mount-40 °C ~ 85 °C 1 Hour (R1) Initial Post-TripDimensions Resistance ModelIhold Resistance mm/(in)Style Ohms at 23 °C Amperes V max. I max. at 23 °C Volts Amps Min. Max. A Max. B Max. C Max. 1 Hour (R1) Initial Resistance Post-TripDimensions ModelIhold Resistance mm/(in)Style Amperes V max. I max. Ohms at 23 °C at 23 °C Volts Amps Min. Max. A Max. B Max. C Max. MF-SMHT1361.36 16 100 0.085 0.337.98 3 5.441 (0.314) (0.118) (0.214) 9.5 3 6.711 MF-SMHT1601.60 16 100 0.050 0.15 (0.374) (0.118) (0.264) MF-MSMF010 0.1060 40 0.70 15.0 4.733.41 1.1 3 (0.186)(0.134)(0.043) 4.733.41 1.1 MF-MSMF014 0.1460 40 0.40 6.50 3 (0.186) (0.134) ( 0.043) 4.733.41 1.1 MF-MSMF020 0.2030 80 0.40 6.00 3 (0.186) (0.134) ( 0.043) 4.733.41 1.1 MF-MSMF030 0.3030 10 0.30 3.00 3 (0.186) (0.134) ( 0.043) 4.733.410.85 MF-MSMF050 0.5015100 0.15 1.00 3 (0.186)(0.134)(0.033) 4.733.410.85 MF-MSMF075 0.7513.2100 0.11 0.45 3 (0.186) (0.134) ( 0.033) 4.733.410.85 MF-MSMF075/240.75 24 40 0.11 0.45 3 (0.186) (0.134) ( 0.033) 4.733.410.75 MF-MSMF110/161.10 16 100 0.04 0.21 3 (0.186) (0.134) (0.03) 4.733.41 2.0 MF-MSMF250/162.50 16 100 0.015 0.1 3 (0.186)(0.134)(0.078) MF-SM Series (2920 & 3425 package) Operating Temperature Surface Mount-40 °C ~ 85 °C 1 Hour (R1) Initial Resistance Post-TripDimensions ModelIholdResistance mm/(in)Style Amperes V max. I max. Ohms at 23 °C at 23 °C Volts Amps Min. Max. A Max. B Max. C Max. MF-SM030 0.306040 0.9 4.80 7.98 3.185.44 1 (0.314) (0.125) (0.214) MF-SM050 0.50 60 40 0.35 1.40 7.98 3.185.44 1 (0.314) (0.125) (0.214) MF-SM075 0.75 30 80 0.23 1.00 7.98 3.185.44 1 (0.314) (0.125) (0.214) MF-SM075/60 0.75 60 10 0.23 1.00 7.98 3.185.44 1 (0.314) (0.125) (0.214) MF-SM100 1.10 30 80 0.12 0.487.98 35.441 (0.314) (0.118) (0.214) MF-SM100/33 1.10 33 40 0.12 0.417.98 35.441 (0.314) (0.118) (0.214) MF-SM125 1.25 15 100 0.07 0.257.98 35.441 (0.314) (0.118) (0.214) MF-SM150 1.50 15 100 0.06 0.25 9.5 36.711 (0.374) (0.118) (0.264) MF-SM150/33 1.50 33 40 0.06 0.23 9.5 36.711 (0.374) (0.118) (0.264) MF-SM200 2.00 15 100 0.045 0.1259.5 36.711 (0.374) (0.118) (0.264) MF-SM250 2.50 15 100 0.024 0.0859.5 36.711 (0.374) (0.118) (0.264) MF-SMDF Series (2018 package) Operating Temperature Surface Mount-40 °C ~ 85 °C 1 Hour (R1) Initial Post-TripDimensions Resistance ModelIhold Resistance mm/(in)Style Amperes V max. I max. Ohms at 23 °C at 23 °C Volts Amps Min. Max. A Max. B Max. C Max. MF-SMDF0500.55 60 10 0.20 1.0 5.444.931.09 3 (0.214)(0.194)(0.043) MF-SMDF1501.50 15 40 0.7 0.17 5.444.930.85 3 (0.214) (0.194) ( 0.033) MF-NSMF Series (1206 package) Operating Temperature Surface Mount-40 °C ~ 85 °C 1 Hour (R1) Initial Post-TripDimensions Resistance ModelIhold Resistance mm/(in)Style Amperes V max. I max. Ohms at 23 °C at 23 °C Volts Amps Min. Max. A Max. B Max. C Max. MF-NSMF0120.12 30 10 1.35 8.5 3.41.81.13 (0.134)(0.071)(0.043) MF-NSMF0200.2 24 10 0.6 2.6 3.4 1.80.853 (0.134)(0.071)(0.033) MF-NSMF0500.5 13.2100 0.15 0.70 3.4 1.80.853 (0.134)(0.071)(0.033) MF-USMD Series (1210 package) Surface Mount Operating Temperature -40 °C ~ 85 °C 1 Hour (R1) Initial Resistance Post-TripDimensions ModelIholdResistancemm/(in)Style Amperes V max. I max. Ohms at 23 °C at 23 °C Volts Amps Min. Max. A Max. B Max. C Max. MF-USMD005 0.0530.010 2.80 50.0 3.432.800.85 2 (0.135) (0.110) (0.033) 3.432.800.85 MF-USMD010 0.1030.010 0.80 15.0 2 (0.135) (0.110) (0.033) 3.432.800.85 MF-USMD020 0.2030.010 0.40 5.00 2 (0.135) (0.110) (0.033) 3.432.800.62 MF-USMD050 0.5013.240 0.18 0.90 2 (0.135) (0.110) (0.024) Worldwide Sales Offices CountryPhone Fax Benelux: +41 (0)41 768 5555 +41 (0)41 768 5510 Brazil: +55 11 5505 0601 +55 11 5505 4370 China: +86 21 64821250 +86 21 64821249 France: +33 (0)2 5473 5151 +33 (0)2 5473 5156 Italy: +41 (0)41 768 5555 +41 (0)41 768 5510 Japan: +81 49 269 3204 +81 49 269 3297 Singapore: +65 6348 7227 +65 6348 1272 Switzerland: +41 (0)41 768 5555 +41 (0)41 768 5510 Taiwan: +886 2 25624117 +886 2 25624116 UK/Ireland: +41 (0)41 768 5555 +41 (0)41 768 5510 USA: +1-951-781-5500+1-951-781-5006 Non-Listed European Countries: +41 (0)41 768 5555 +41 (0)41 768 5510 Technical Assistance RegionPhone Fax Asia-Pacific: +886 2 25624117 +886 2 25624116 Europe: +41 (0)41 768 5555 +41 (0)41 768 5510 Americas: +1-951-781-5500+1-951-781-5700 www.bourns.com Bourns® products are available through an extensive global network of representatives and distributors. To obtain technical applications assistance, a quotation, or to place an order, contact a Bourns representative in your area. Specifications subject to change without notice. Actual performance in specific customer applications may differ due to the influence of other variables. Customers should verify actual device performance in their specific applications. “Bourns” and "Multifuse" are registered trademarks of Bourns, Inc. in the U.S. and other countries. COPYRIGHT© 2011, BOURNS, INC. • LITHO IN U.S.A. • 06/11 • e/MF1106