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Fast-Acting Subminiature Fuses
6125FF Series
Description * Fast-acting surface mount fuse * Overcurrent protection of systems up to 125Vac/72Vdc * High inrush withstand capability * Solder immersion compatible
Electrical Characteristics % of Amp Rating Opening Time 100% 4 Hours Minimum 200% 5 Second Maximum
Surface Mount Device
Agency Information * Recognition File: E19180 Environmental Data * * * * * * * Operating temperature: -55C to 125C Mechanical shock: MIL-STD-202, Method 213 High frequency vibration: MIL-STD-202, Method 204 Load humidity: MIL-STD-202, Method 103 Moisture resistance: MIL-STD-202, Method 106 Resistance to solvents: MIL-STD-202, Method 215 Thermal shock: MIL-STD-202, Method 107
Dimensions - mm (in)
Ordering * Specify packaging and product code (i.e., TR2/6125FF500-R) Soldering Method * Wave immersion: 260C, 10 Sec. max. * Solder reflow: 260C, 30 Sec. max.
Recommended Pad Layout - mm (in)
2.6 (0.102) 3.0 (0.118)
4.0 (0.157)
8.6 (0.338)
Specifications
Part Number 6125FF500-R 6125FF750-R 6125FF1-R 6125FF1.25-R 6125FF1.5-R 6125FF2-R 6125FF2.5-R 6125FF3-R 6125FF3.5-R 6125FF4-R 6125FF5-R 6125FF6.3-R 6125FF7-R 6125FF8-R 6125FF10-R 6125FF12-R 6125FF15-R
*
Current Rating (amps) 500mA 750mA 1 1.25 1.5 2 2.5 3 3.5 4 5 6.3 7 8 10 12 15
Voltage Rating Vac Vdc 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72 125 72
Interrupting Rating (amps) 125Vac 72Vdc 32Vdc 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300 50 50 300
DC Cold Resistance (m) Typ. 750 350 260 171 112 49 45 35 27 26 17 14 11 8.7 7.3 5.3 4.2
Melting I2t 2 (A sec) 0.08 0.152 0.22 0.355 0.456 1.67 5.20 6.24 7.28 7.4 9.5 15.1 37.25 70 67.75 210.59 296.10
Typical Voltage Drop (mV) 605 433 415 410 365 160 155 153 150 145 141 135 112 110 110 106 104
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) ** Typical Melting I2t (Measured at 72Vdc, 10X rated current (not exceed 50A - IR @ 72Vdc)
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Data Sheet 4326
Time-Current Curve
CURRENT IN AMPS
CURRENT IN AMPS
Packaging Code
Packaging Code Prefix TR2 Description 5,000 fuses on tape-and-reel on a 13 inch (330mm) reel
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. Life Support Policy: Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
(c) 2009 Cooper Bussmann St. Louis, MO 63178 www.cooperbussmann.com
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Data Sheet 4326

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