Features Applications Radial leaded devices Almost anywhere there is a load to be protected with a voltage supply of up to Cured, ame retardant epoxy polymer 90 V, including: insulating material meets UL 94V-0 requirements Broadband cable power passing taps RoHS compliant* and halogen free* Set-top boxes Agency recognition: MF-R/90 Series - PTC Resettable Fuses Electrical Characteristics One Hour Nominal Initial Post-Trip Max. Time Tripped I I Resistance Resistance hold trip to Trip Power Values Standard Dissipation V max. I max. Trip Model Volts Amps Amperes Ohms Ohms Amperes Seconds Watts at 23 C at 23 C at 23 C at 23 C at 23 C at 23 C Hold Trip Min. Max. Max. Typ. MF-R055/90 90 10 0.55 1.1 0.45 0.9 2.0 1.6 60 2.0 MF-R055/90U 90 10 0.55 1.1 0.45 0.9 2.0 1.6 28 2.0 MF-R075/90 90 10 0.75 1.5 0.37 0.75 1.65 2.0 60 2.5 U suf x indicates product without insulation coating. Environmental Characteristics Operating/Storage Temperature ...................... -40 C to +85 C Maximum Device Surface Temperature in Tripped State ............................................125 C Passive Aging .................................................. +85 C, 1000 hours ...........................................5 % typical resistance change Humidity Aging................................................. +85 C, 85 % R.H. 1000 hours .........................5 % typical resistance change Thermal Shock ................................................ +125 C to -55 C, 10 times ..............................10 % typical resistance change Solvent Resistance .......................................... MIL-STD-202, Method 215 ...............................No change Vibration .......................................................... MIL-STD-883C, Method 2007.1,.......................No change Condition A Test Procedures And Requirements For Model MF-R/90 Series Test Test Conditions Accept/Reject Criteria Visual/Mech................................................... Verify dimensions and materials .......................Per MF physical description Resistance ....................................................... In still air 23 C .............................................Rmin R Rmax Time to Trip ...................................................... 5 times Ihold, 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 UL File Number ............................................... E 174545S CSA File Number ............................................. CA 110338 TV File Number ............................................. R2057213 Thermal Derating Chart - I / I (Amps) hold trip Ambient Operating Temperature Model -40 C -20 C 0 C 23 C 40 C 50 C 60 C 70 C 85 C MF-R055/90 0.85 / 1.7 0.75 / 1.5 0.65 / 1.3 0.55 / 1.1 0.45 / 0.9 0.4 / 0.8 0.35 / 0.7 0.3 / 0.6 0.22 / 0.44 MF-R055/90U 0.85 / 1.7 0.75 / 1.5 0.65 / 1.3 0.55 / 1.1 0.45 / 0.9 0.4 / 0.8 0.35 / 0.7 0.3 / 0.6 0.22 / 0.44 MF-R075/90 1.15 / 2.3 1.0 / 2.0 0.9 / 1.8 0.75 / 1.5 0.61 / 1.22 0.55 / 1.1 0.48 / 0.96 0.41 / 0.82 0.30 / 0.6 * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. ** Bourns follows the prevailing de nition 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. Speci cations are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their speci c applications. *RoHS COMPLIANT & **HALOGEN FREEAdditional Features Bulk packaging, tape and reel and Ammo-Pak available on most models MF-R/90 Series - PTC Resettable Fuses Product Dimensions A B C (Pitch) D E Physical Characteristics Model Max. Max. Nom. Min. Max. Style Lead Dia. Material 10.9 16.7 5.1 0.7 6.3 3.6 0.81 MF-R055/90 1 Sn/Cu (0.43) (0.65) (0.201 0.028) (0.248) (0.142) (0.032) 10.3 16.7 5.1 0.7 6.3 3.0 0.81 MF-R055/90U 1 Sn/Cu (0.4) (0.65) (0.201 0.028) (0.248) (0.118) (0.032) 11.9 15.5 5.1 0.7 6.3 3.6 0.81 MF-R075/90 1 Sn/Cu (0.47) (0.61) (0.201 0.028) (0.248) (0.142) (0.032) Packaging options: MM BULK: 500 pcs. per bag. TAPE & REEL: 1500 pcs. per reel. AMMO-PACK: 1000 pcs. per pack DIMENSIONS: (INCHES) Style 1 Typical Part Marking How to Order A E MF - R 055/90 U - 0 Represents total content. Layout may vary. Multifuse MANUFACTURER S Product TRADEMARK Designator PART IDENTIFICATION Series B R055 LOT NO. R = Radial Leaded (S = CHINA) 1220S DATE CODE Component (FIRST DIGIT = Hold Current, I LAST DIGIT OF YEAR hold 055, 075 (0.55 Amps - 0.75 Amps) NEXT THREE DIGITS = DAY OF YEAR) Max. Voltage, V D Coating = Coated U = Uncoated C Packaging Options - 0 = Bulk Packaging Also available with straight leads. - 2 = Tape and Reel* - AP = Ammo-Pak* *Packaged per EIA486-B Typical Time to Trip at 23 C 100 10 1 MF-R075/90 MF-R055/90 MF-R055/90U 0.1 1 10 Fault Current (Amps) MF-R/90, REV. I 11/14 Speci cations are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their speci c applications. Time to Trip (Seconds)