CO LO & MP LI GE AN N T FR EE *R oH S Applications n Radial leaded devices n Food blenders, coffee machines n Cured, flame retardant epoxy polymer n HVAC ** HA Features n n *R oH S CO M PL IA N T n n insulating material meets UL 94V-0 requirements Bulk packaging, tape and reel available Resettable circuit protection Agency recognition: RoHS compliant* and halogen free** n Electric fans, blowers n AC adaptors MF-RM Series - PTC Resettable Fuses Electrical Characteristics (A) 0.05 0.08 0.12 0.16 0.25 0.33 0.40 0.55 Itrip at 23 C (A) 0.12 0.19 0.30 0.37 0.56 0.74 0.90 1.25 FR EE Operating Voltage (Vac) 240 240 240 240 240 240 240 240 Interrupt Voltage (Vac) 265 265 265 265 265 265 265 265 Imax Initial Resistance Interrupt Current RMin. at 23 C (A) 1.0 1.2 1.2 2.0 3.5 4.5 5.5 7.0 (Ohms) 18.50 7.40 3.00 2.50 1.30 0.77 0.60 0.45 Ro VE LEA HS RS D CO ION FRE M SA E PL R IA E NT * MF-RM005/240 MF-RM008/240 MF-RM012/240 MF-RM016/240 MF-RM025/240 MF-RM033/240 MF-RM040/240 MF-RM055/240 Ihold at 23 C Vmax LE AD Model Typical Current Trip Limit One Hour Post-Trip Resistance R1 Max. at 23 C (Ohms) 65.00 26.00 12.00 7.80 3.80 2.60 1.90 1.45 Max. Time to Trip at 23 C (A) 0.25 0.40 0.60 0.80 1.25 1.65 2.00 2.75 (Sec.) 10.0 10.0 15.0 15.0 18.5 21.0 24.0 26.0 Tripped Power Dissipation PD Typ. at 23 C (W) 0.9 0.9 1.0 1.4 1.5 1.7 2.0 3.4 Environmental Characteristics Operating Temperature..................................... -20 C to +85 C Humidity Aging................................................. +85 C, 85 % R.H. 1000 hours..........................20 % typical resistance change Passive Aging................................................... +85 C, 1000 hours............................................20 % typical resistance change Vibration........................................................... MIL-STD-883C, Method 2007.1,.......................No change Condition A Solvent Resistance........................................... MIL-STD-202, Method 215................................No change Test Procedures And Requirements For Model MF-RM Series Item Test Conditions Accept/Reject Criteria Visual/Mechanical............................................. Verify dimensions and material..........................Per MF physical description Resistance........................................................ In still air @ 23 C..............................................Rmin R R1max Time to Trip....................................................... 240 Vac, specified current.................................T max. time to trip Hold Current..................................................... At Ihold...............................................................No trip Trip Cycle Life................................................... 240 Vac, Imax, 100 cycles.................................No arcing or burning Trip Endurance................................................. a) 240 Vac, Imax, 24 hours...............................No arcing or burning b) 265 Vac, Imax, 30 mins. Solderability...................................................... MIL-STD-202, Method 208................................95 % min. coverage UL File Number......................E174545............ http://www.ul.com/ Follow link to Certifications, then UL File No., enter E174545 TUV Certificate Number.........50232433.......... http://www.tuvdotcom.com/certificates/50232433?locale=en&page_number=3 * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. ** Bourns follows the prevailing definition of "halogen free" in the industry. Bourns considers a product to be "halogen free" if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. 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. Advantages Benefits n Resettable feature with overtemperature and overcurrent protection n Reduced repair and replacement costs can save expensive components from having to be replaced after tripping, e.g., transformers with built in thermal fuses n Faster than bimetallic switch designs that take on average approximately 30 seconds to cool down and reset n Generally lower electromagnetic interference than bimetallic switches n Reduced nuisance tripping n Combined overcurrent and overtemperature protector in one device MF-RX Series MF-RM Series--PTC PTCResettable ResettableFuses Fuses Thermal Derating Chart - Ihold (Amps) Ambient Operating Temperature Model -20 C 0.08 0.12 0.18 0.24 0.38 0.50 0.61 0.80 MF-RM005/240 MF-RM008/240 MF-RM012/240 MF-RM016/240 MF-RM025/240 MF-RM033/240 MF-RM040/240 MF-RM055/240 0 C 0.06 0.10 0.15 0.20 0.32 0.42 0.51 0.68 23 C 0.05 0.08 0.12 0.16 0.25 0.33 0.40 0.55 40 C 0.04 0.07 0.10 0.13 0.21 0.27 0.33 0.46 50 C 0.04 0.06 0.09 0.11 0.18 0.23 0.28 0.40 60 C 0.03 0.05 0.07 0.10 0.15 0.20 0.24 0.35 70 C 0.03 0.04 0.06 0.08 0.13 0.17 0.20 0.29 85 C 0.02 0.03 0.04 0.05 0.09 0.11 0.14 0.22 Product Dimensions A Max. 8.3 (0.327) 8.3 (0.327) 8.3 (0.327) 9.9 (0.390) 10.0 (0.394) 11.4 (0.449) 11.5 (0.453) 14.0 (0.551) Model MF-RM005/240 MF-RM008/240 MF-RM012/240 MF-RM016/240 MF-RM025/240 MF-RM033/240 MF-RM040/240 MF-RM055/240 B Max. 12.9 (0.508) 12.9 (0.508) 12.9 (0.508) 13.8 (0.543) 20.0 (0.787) 20.0 (0.787) 20.9 (0.823) 22.4 (0.882) C Nom. 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) D Min. 7.6 (0.299) 7.6 (0.299) 7.6 (0.299) 7.6 (0.299) 7.6 (0.299) 7.6 (0.299) 7.6 (0.299) 7.6 (0.299) Tol. 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) 0.7 (0.028) Physical Characteristics E Max. Style Lead Dia. Material 3.8 0.51 1 Sn/Cu (0.150) (0.020) 3.8 0.51 1 Sn/Cu (0.150) (0.020) 3.8 0.51 1 Sn/Cu (0.150) (0.020) 3.8 0.51 1 Sn/Cu (0.150) (0.020) 3.8 0.65 2 Sn/Cu (0.150) (0.026) 3.8 0.65 2 Sn/Cu (0.150) (0.026) 3.8 0.65 2 Sn/Cu (0.150) (0.026) 4.1 0.81 2 Sn/Cu (0.161) (0.032) 0.51 (24AWG) DIMENSIONS: 0.65 (22AWG) 0.81 (20AWG) Packaging options: BULK: 500 pcs. per bag. TAPE & REEL: 2000 pcs. per reel (MF-RM005/240~MF-RM040/240); 1000 pcs. per reel (MF-RM055/240) Style 1 Style 2 A A E E Typical Part Marking Represents total content. Layout may vary. PART IDENTIFICATION B LEAD DIA. D C DATE CODE (FIRST DIGIT = LAST DIGIT OF YEAR; NEXT THREE DIGITS = DAY OF YEAR) B LEAD DIA. D C Also available with straight leads (see How to Order). MM (INCHES) MANUFACTURER'S TRADEMARK RM055 0220S COUNTRY OF MANUFACTURE (T = TAIWAN S = CHINA) 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-RM Series - PTC Resettable Fuses How to Order Typical Time to Trip at 23 C 100 Time to Trip (Seconds) A B C D MF - RM 005 / 240 - 2 - 17 F G H E A = MF-RM005/240 B = MF-RM008/240 C = MF-RM012/240 D = MF-RM016/240 E = MF-RM025/240 F = MF-RM033/240 G = MF-RM040/240 H = MF-RM055/240 10 1 Multifuse(R) Product Designator Series RM = Radial Leaded Component Hold Current, Ihold 005-055 (0.05 A - 0.55 A) Operating Voltage, Vmax 240 = 240 Vac Packaging Options - 0 = Bulk Packaging - 2 = Tape and Reel Part Number Suffix Option - 17 = Straight Leads in Place of Standard Kinked Leads 0.1 0.1 1 10 *Packaged per EIA486-B Fault Current (Amps) MF-RM SERIES, REV. F, 09/16 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-RM Series Tape and Reel Specifications Devices taped using EIA468-B/IEC60286-2 standards. See table below and Figures 1 and 2 for details. Dimension Description IEC Mark EIA Mark Carrier tape width W W Hold down tape width W0 W4 Hold down tape Top distance between tape edges Dimensions Dimensions Tolerance 18 -0.5/+1.0 (.709) (-0.02/+.039) 11 min. (.433) No protrusion W2 W6 W1 Sprocket hole position W5 Sprocket hole diameter D0 D0 Abscissa to plane (MF-RM005/240~MF-RM016/240) H H Abscissa to plane (MF-RM025/240~MF-RM055/240) H0 H0 Abscissa to top (MF-RM005/240~MF-RM016/240) H1 H1 Abscissa to top (MF-RM025/240~MF-RM055/240) H1 H1 Overall width w/lead protrusion (MF-RM005/240~MF-RM016/240) C1 Overall width w/lead protrusion (MF-RM025/240~MF-RM055/240) C1 Overall width w/o lead protrusion (MF-RM005/240~MF-RM016/240) C2 Overall width w/o lead protrusion (MF-RM025/240~MF-RM055/240) C2 Lead protrusion I1 L1 Protrusion of cutout L L Protrusion beyond hold-down tape I2 I2 3 (.118) 9 (.354) 4 (.157) 18.5 (.728) 16 (.63) 32.2 (1.268) 45.0 (1.772) 43.2 (1.701) 56.0 (2.205) 42.5 (1.673) 56.0 (2.205) 1.0 (.039) 11 (.433) max. -0.5/+0.75 (-0.02/+0.03) 0.2 (.079) 3.0 (.118) 0.5 (.02) max. max. max. max. max. max. max. max. Not specified 12.7 (.500) 0.3 (.012) 1 Pitch tolerance 20 consecutive (.039) 12.7 0.3 Device pitch (MF-RM005/240-MF-RM040/240) (.500) (.012) 25.4 0.6 Device pitch (MF-RM055/240) (1.00) (.024) 0.9 t max. Tape thickness t (.035) 1.5 t1 max. Tape thickness with splice (MF-RM005/240~MF-RM040/240) (.059) 2.3 Tape thickness with splice (MF-RM055/240) t1 max. (.091) 0.3 Splice sprocket hole alignment 0 (.012) 1 Body lateral deviation h h 0 (.039) 0.3 Body tape plane deviation p p 0 (.012) 3.81 0.7 Lead seating plane deviation P1 P1 (.015) (.028) 5.08 +0.8/-0.5 Lead spacing F F (.200) (+.031/-.020) Sprocket hole pitch P0 P0 DIMENSIONS: MM (INCHES) 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-RM Series Tape and Reel Specifications IEC Mark EIA Mark Reel width (MF-RM005/240~MF-RM040/240) w w2 Reel width (MF-RM055/240) w w2 Reel diameter d a Space between flanges (MF-RM005/240~MF-RM040/240) h w1 Space between flanges (MF-RM055/240) h w1 Dimension Description f Arbor hole diameter h h Core diameter Consecutive missing places Empty places per reel n Reference plane P1 H1 H1 F A L H0 B W0 Taped Component Dimensions - Figure 1 h c h Box Dimensions Dimensions Tolerance 56.0 max. (2.20) 63.5 max. (2.50) 370.0 max. (14.57) 48.0 max. (1.89) 55.0 max. (2.17) 12.0 26.0 (.472) (1.02) p p 91.0 max. (3.58) 372 64 372 max. (2.5) (14.6) (14.6) H P0 D0 Reference plane P1 H1 A I2 I1 H0 B P0 max. DIMENSIONS: MM (INCHES) p User direction of feed Cross section A - B H1 F L 0.1 % W p I1 max. W1 h I2 3 W0 H t W1 W D0 User direction of feed Cross section A - B Reel Dimensions - Figure 2 t Reel Upper side Tape h d User direction of feed Lower side f h w Reel Specifications are subject to change without notice. Upper side Users should verify actual device performance in their specific applications. Tape The products described herein and this document are subject to User specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. h d direction of Bourns PPTC Resettable Fuses 3312 - (R)2 Multifuse mm SMD(R) Trimming Potentiometer Application Notice * Users are responsible for independent and adequate evaluation of Bourns(R) Multifuse(R) 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(R) 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(R) products manufactured by or on behalf of Bourns, Inc. and its affiliates (collectively, "Bourns"). Unless otherwise expressly indicated in writing, Bourns(R) products and data sheets relating thereto are subject to change without notice. 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