Effective December 2015 Technical Data 4326 Supersedes March 2015 6125FF Fast-acting subminiature fuses Applications Power supplies Servers LED/LCD televisions Appliances and white goods LCD monitor/backlight inverters Laptops and notebooks Agency information cURus Recognition file number: E19180, Guide JDYX2/JDYX8 Ordering Specify part number and packaging prefix as shown Product description Packaging prefix Part number Fast-acting surface mount fuse TR2- 6125FF1-R Overcurrent protection of systems up to 125Vac/72Vdc Packaging prefixes High inrush withstand capability TR2- (Tape and reel, 5000 parts per 13 Solder immersion compatible diameter reel)6125FF Technical Data 4326 Effective December 2015 Fast-acting subminiature fuses Electrical characteristics % of Amp Rating Opening Time 100% 4 Hours Minimum 200% 5 Second Maximum Product specifications 1 2 Voltage rating Interrupting rating (amps) DC cold Melting Typical 2 Current rating resistance I t voltage 3 2 Part Number (amps) Vac Vdc 125Vac 72Vdc 32Vdc (m) Typ. (A second) drop (mV) 6125FF500-R 500mA 125 72 50 50 300 750 0.08 605 6125FF750-R 750mA 125 72 50 50 300 350 0.152 433 6125FF1-R 1 125 72 50 50 300 260 0.22 415 6125FF1.25-R 1.25 125 72 50 50 300 171 0.355 410 6125FF1.5-R 1.5 125 72 50 50 300 112 0.456 365 6125FF2-R 2 125 72 50 50 300 49 1.67 160 6125FF2.5-R 2.5 125 72 50 50 300 45 5.20 155 6125FF3-R 3 125 72 50 50 300 35 6.24 153 6125FF3.5-R 3.5 125 72 50 50 300 27 7.28 150 6125FF4-R 4 125 72 50 50 300 26 7.4 145 6125FF5-R 5 125 72 50 50 300 17 9.5 141 6125FF6.3-R 6.3 125 72 50 50 300 14 15.1 135 6125FF7-R 7 125 72 50 50 300 11 37.25 112 6125FF8-R 8 125 72 50 50 300 8.7 70 110 6125FF10-R 10 125 72 50 50 300 7.3 67.75 110 6125FF12-R 12 125 72 50 50 300 5.3 210.59 106 6125FF15-R 15 125 72 50 50 300 4.2 296.10 104 1 AC Interrupting Rating (Measured at designated voltage, 100% power factor) DC Interrupting Rating (Measured at designated voltage, time constant of less than 50 microseconds, battery source) 2 2 Typical Melting I t (Measured at 72Vdc, 10X rated current (not exceed 50A - IR 72Vdc) 3 Part number definition: 6125FFxxx-R 6125FF= Product code and size xxx= Ampere -R= RoHS compliant Dimensionsmm (in) Recommended pad layoutmm (in) 2.720.15 2.6 3.0 (0.1070.006) (0.102) (0.118) 1.35 TYP. (0.053) 4.0 (0.157) 8.6 (0.338) 6.100.20 2.720.15 (0.240.008) (0.1070.006) www.eaton.com/elx 2