MF-LR730/20-0

Features Applications n Axial leaded Any application that requires protection at low resistances: n Weldable nickel terminals n Rechargeable battery pack protection n Very low internal resistance n Cellular phones n Operating currents to 9.0 amps 814 4S n Laptop computers n RoHS compliant* n Agency recognition: MF-LR Series - PTC Resettable Fuses Electrical Characteristics Vmax Model Ihold Imax at 23 °C (Ohms) at 23 °C Volts Amps 1 Hour Post-Trip Resistance Initial Resistance Itrip Amps Amps MF-LR190 15 100 1.9 3.9 0.039 Rmin 0.072 MF-LR260 15 100 2.6 5.8 0.020 MF-LR380 15 100 3.8 8.3 MF-LR450 16 100 4.5 MF-LR550 10 100 MF-LR550/20 20 MF-LR600 Rmax Max. Time to Trip Tripped Power Dissipation at 23 °C (Ohms) at 23 °C at 23 °C (Watts) cUL TÜV R1max. Amps Seconds Agency Recognition Typ. E174545 R50410733 0.102 9.5 5.0 1.2 3 3 0.042 0.083 13.0 5.0 1.3 3 3 0.013 0.026 0.037 19.0 5.0 2.5 3 3 8.9 0.011 0.020 0.028 22.5 5.0 1.4 3 3 5.5 10.5 0.009 0.016 0.022 27.5 5.0 1.4 3 3 100 5.5 10.5 0.009 0.016 0.022 27.5 5.0 1.4 3 10 100 6.0 11.7 0.007 0.014 0.019 30.0 5.0 2.8 Pending 3 3 MF-LR730 10 100 7.3 14.1 0.006 0.012 0.015 30.0 5.0 3.0 3 3 MF-LR730/20 20 100 7.3 14.1 0.006 0.012 0.015 30.0 5.0 3.0 3 MF-LR900/20 20 100 9.0 16.7 0.006 0.010 0.014 45.0 5.0 3.0 Pending 3 Pending Environmental Characteristics Item Additional Information Condition Operating Temperature -40 °C to +85 °C Recommended Storage +40 °C max. / 70 % R.H. max. Criteria Passive Aging +70 °C, 1000 hours ±10 % typical resistance change Humidity Aging +85 °C, 85 % R.H. 7 days ±10 % typical resistance change Vibration MIL-STD-883C, Method 2007.1 Condition A Rmin ≤ R ≤ R1max Moisture Sensitivity Level (MSL) See Note ESD Classification Class 6 (per AEC-Q200-2, HBM) Click these links for more information: PRODUCT TECHNICAL INVENTORY SAMPLES SELECTOR LIBRARY CONTACT Test Procedures and Requirements Test Test Conditions Accept/Reject Criteria Visual/Mech...................................................... Verify dimensions and materials........................Per MF physical description Resistance........................................................ In still air @ 23 °C..............................................Rmin ≤ R ≤ R1max Time to Trip....................................................... At specified current, Vmax, 23 °C......................T ≤ max. time to trip (seconds) Hold Current..................................................... 30 min. at Ihold..................................................No trip Trip Cycle Life................................................... Vmax, Imax, 100 cycles.....................................No arcing or burning Trip Endurance................................................. Vmax, 48 hours..................................................No arcing or burning WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov *RoHS Directive 2015/863, Mar 31, 2015 and Annex. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.  MF-LR Series - PTC Resettable Fuses Thermal Derating Table - Ihold (Amps) Model MF-LR190 MF-LR260 MF-LR380 MF-LR450 MF-LR550 MF-LR550/20 MF-LR600 MF-LR730 MF-LR730/20 MF-LR900/20 -40 ºC 2.8 3.8 5.5 6.5 8.0 8.0 8.7 10.5 10.5 12.7 -20 ºC 2.5 3.4 4.9 5.8 7.1 7.1 7.8 9.5 9.5 11.4 Ambient Operating Temperature 23 ºC 40 ºC 50 ºC 1.9 1.6 1.5 2.6 2.2 2.0 3.8 3.3 3.0 4.5 3.9 3.6 5.5 4.7 4.3 5.5 4.7 4.3 6.0 5.2 4.7 7.3 7.4 6.8 7.3 7.4 6.8 9.0 7.5 6.8 0 ºC 2.3 3.1 4.4 5.3 6.2 6.2 7.1 8.6 8.6 10.0 60 ºC 1.4 1.9 2.8 3.3 4.0 4.0 4.4 6.2 6.2 6.2 70 ºC 1.2 1.7 2.5 2.9 3.6 3.6 3.9 5.5 5.5 5.5 85 ºC 1.0 1.4 2.1 2.5 3.0 3.0 3.3 4.5 4.5 4.5 Itrip is approximately two times Ihold. Product Dimensions Model MF-LR190 MF-LR260 MF-LR380 MF-LR450 MF-LR550 MF-LR550/20 MF-LR600 MF-LR730 MF-LR730/20 MF-LR900/20 Min. 19.9 (0.783) 20.9 (0.823) 24.0 (0.945) 24.0 (0.945) 35.0 (1.378) 35.0 (1.378) 24.0 (0.945) 28.0 (1.102) 27.1 (1.067) 45.4 (1.787) A Max. 22.1 (0.870) 23.1 (0.909) 26.0 (1.024) 26.0 (1.024) 37.0 (1.457) 37.0 (1.457) 26.0 (1.024) 30.0 (1.181) 29.1 (1.146) 47.6 (1.874) Min. 4.9 (0.193) 4.9 (0.193) 6.9 (0.272) 9.9 (0.390) 6.9 (0.272) 6.9 (0.272) 14.8 (0.583) 14.0 (0.551) 13.9 (0.547) 7.9 (0.311) B Max. 5.2 (0.205) 5.2 (0.205) 7.5 (0.295) 10.5 (0.414) 7.5 (0.295) 7.5 (0.295) 15.9 (0.626) 15.0 (0.590) 14.5 (0.571) 8.5 (0.335) Standard Style Min. 0.6 (0.024) 0.6 (0.024) 0.6 (0.024) 0.6 (0.024) 0.6 (0.024) 0.6 (0.024) 0.6 (0.024) 0.6 (0.024) 0.6 (0.024) 0.6 (0.024) C Max. 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) 1.0 (0.039) 1.3 (0.051) Min. 5.5 (0.217) 4.1 (0.161) 4.1 (0.161) 5.3 (0.209) 5.3 (0.209) 5.3 (0.209) 4.1 (0.161) 4.8 (0.189) 4.1 (0.161) 4.6 (0.181) D Max. 7.5 (0.295) 5.5 (0.217) 5.5 (0.217) 6.7 (0.264) 6.7 (0.264) 6.7 (0.264) 5.5 (0.217) 5.7 (0.224) 5.5 (0.217) 9.2 (0.362) Min. 3.9 (0.154) 3.9 (0.154) 4.9 (0.193) 5.9 (0.232) 4.9 (0.193) 4.9 (0.193) 5.9 (0.232) 5.9 (0.232) 5.9 (0.232) 5.9 (0.232) "S" Style F B Max. 4.1 (0.161) 4.1 (0.161) 5.1 (0.201) 6.1 (0.240) 5.1 (0.201) 5.1 (0.201) 6.1 (0.240) 6.1 (0.240) 6.1 (0.240) 6.1 (0.240) SLIT DIMENSIONS: A D F 0.5 4.0 X NOMINAL (.020) (.157) MM A (INCHES) B D D C Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. D  MF-LR Series - PTC Resettable Fuses Typical Time to Trip at 23 ˚C Typical Part Marking Represents total content. Layout may vary. MF-LR550/20 MF-LR550 MF-LR450 MF-LR380 MF-LR260 MF-LR190 MANUFACTURER'S TRADEMARK MF-LR600 MF-LR730 & MF-LR730/20 MF-LR900/20 LR190 8144S DATE CODE (FIRST DIGIT = LAST DIGIT OF YEAR; NEXT THREE DIGITS = DAY OF YEAR) Time to Trip (Seconds) 100 10 PART IDENTIFICATION LOT NO. (S = CHINA) How to Order 1 MF - LR 730/20 - 0 Multifuse Product Designator ® Series LR = Axial Leaded “Strap” Component .01 Hold Current, Ihold/Vmax* 190-900 (1.90 Amps - 9.00 Amps) 1 10 100 Fault Current (Amps) Packaging Quantity Packaging: Bulk - 500 pcs. per bag Packaging Options -__ = Bulk Packaging Designator for Models MF-LR190 through MF-LR730 -0 = Bulk Packaging Designator for Models MF-LR550/20, MF-LR730/20 and MF-LR900/20 *Vmax entry applies only to Models MF-LR550/20, MF-LR730/20 & MF-LR900/20. Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com www.bourns.com MF-LR SERIES, REV. Y, 01/22 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.  Bourns PPTC Resettable Fuses 3312 - ®2 Multifuse mm SMD® Trimming Potentiometer Application Notice • Users are responsible for independent and adequate evaluation of Bourns® Multifuse® Polymer PTC devices in the user’s application, including the PPTC device characteristics stated in the applicable data sheet. • Polymer PTC devices must not be allowed to operate beyond their stated maximum ratings. Operation in excess of such maximum ratings could result in damage to the PTC device and possibly lead to electrical arcing and/or fire. Circuits with inductance may generate a voltage above the rated voltage of the polymer PTC device and should be thoroughly evaluated within the user’s application during the PTC selection and qualification process. • Polymer PTC devices are intended to protect against adverse effects of temporary overcurrent or overtemperature conditions up to rated limits and are not intended to serve as protective devices where overcurrent or overvoltage conditions are expected to be repetitive or prolonged. • In normal operation, polymer PTC devices experience thermal expansion under fault conditions. Thus, a polymer PTC device must be protected against mechanical stress, and must be given adequate clearance within the user’s application to accommodate such thermal expansion. Rigid potting materials or fixed housings or coverings that do not provide adequate clearance should be thoroughly examined and tested by the user, as they may result in the malfunction of polymer PTC devices if the thermal expansion is inhibited. • Exposure to lubricants, silicon-based oils, solvents, gels, electrolytes, acids, and other related or similar materials may adversely affect the performance of polymer PTC devices. • Aggressive solvents may adversely affect the performance of polymer PTC devices. Conformal coating, encapsulating, potting, molding, and sealing materials may contain aggressive solvents including but not limited to xylene and toluene, which are known to cause adverse effects on the performance of polymer PTCs. Such aggressive solvents must be thoroughly cured or baked to ensure their complete removal from polymer PTCs to minimize the possible adverse effect on the device. • Recommended storage conditions should be followed at all times. Such conditions can be found on the applicable data sheet and on the Multifuse® Polymer PTC Moisture/Reflow Sensitivity Classification (MSL) note: https://www.bourns.com/docs/RoHS-MSL/msl_mf.pdf MFAN 12/18 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.  Legal Disclaimer Notice This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and its affiliates (collectively, “Bourns”). Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change without notice. 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