cooper bussmann

6125FA Series Fast Acting Brick™ Fuses

  
* 6125FA Ratings above 2 amps are not recommended for new designs.
* Recommended replacement for 2A+ rating is the CB61F series.


Description
• Fast Acting Surface Mount Fuse
• Complies with the EIA-IS-722 Standard
• Solder Immersion Compatible
• Overcurrent protection of systems up to 125VAC/DC
• Wire-in-air design

ELECTRICAL CHARACTERISTICS
% of Amp Rating Opening Time
100% 4 Hours Minimum
200% 5 Seconds Maximum

Agency Information
• UL Listed Guide and File Numbers (250mA-12A):JDYX & E19180 
• UL Recognized Guide and File Numbers (15A):JDYX2 & E195337 
• CSA Component Acceptance: 053787 C 000 & Class No: 1422 30 
 
Environmental Data
• Shock: MIL-STD-202, Method 213, Test Condition 1(100 G’s peak for 6 milliseconds)
• Vibration: MIL-STD-202, Method 201 (10-55 Hz, 0.06inch, total excursion)
• Salt Spray: MIL-STD-202, Method 101, Test ConditionB (48 hrs)
• Insulation Resistance: MIL-STD-202, Method 302, TestCondition A (After Opening) 10,000 ohms minimum
• Resistance to Solder Heat: MIL-STD-202, Method 210,Test Condition F (20 sec, at 260° C)
• Thermal Shock: MIL-STD-202, Method 107, TestCondition B (-65° C to +125° C)
 
Ordering
• Specify product and packaging code

Dimensions mm⁄(inches)


Soldering Method
• Wave Solder: 260°C, 10 sec max.(MIL-STD-202, Method 210)
• Infrared Reflow: 260°C, 30 sec max

SPECIFICATIONS
Product
Code
Voltage
Rating
AC           DC           DC
Interrupting
Rating*
Resistance (ohms)** Typ. Typical Melt I2t† Typical Voltage Drop (V)‡
125V AC 125V DC 86V DC
6125FA250mA 125V 125V 86V 50A 300A 10,000A 0.65 0.01 0.30
6125FA375mA 125V 125V 86V 50A 300A 10,000A 0.36 0.03 0.25
6125FA500mA 125V 125V 86V 50A 300A 10,000A 0.24 0.06 0.22
6125FA750mA 125V 125V 86V 50A 300A 10,000A 0.15 0.07 0.17
6125FA1A 125V 125V 86V 50A 300A 10,000A 0.11 0.14 0.17
6125FA1.25A 125V 125V 86V 50A 300A 10,000A 0.09 0.24 0.16
6125FA1.5A 125V 125V 86V 50A 300A 10,000A 0.07 0.41 0.15
6125FA2A 125V 125V 86V 50A 300A 10,000A 0.05 0.80 0.15
6125FA2.5A 125V 125V 86V 50A 300A 10,000A 0.038 1.4 0.14
6125FA3A 125V 125V 86V 50A 300A 10,000A 0.028 2.4 0.13
6125FA3.5A 125V 125V 86V 50A 300A 10,000A 0.025 3.3 0.13
6125FA4A 125V 125V 86V 50A 300A 10,000A 0.022 4.4 0.13
6125FA5A 125V 125V 86V 50A 300A 10,000A 0.016 7.8 0.12
6125FA6.3A 125V 125V 86V 50A 300A 10,000A 0.012 14.0 0.12
6125FA7A 125V 125V 86V 50A 300A 10,000A 0.011 19.0 0.114
6125FA10A 125V N/A 86V 50A N/A 10,000A 0.007 44 0.107
6125FA12A 125V N/A 86V 50A N/A 10,000A 0.006 69 0.103
6125FA15A N/A N/A 86V N/A N/A 10,000A 0.004 124 0.098
* 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)
** DC Cold Resistance (Measured at 10% of rated current)
† Typical Melting I2
t (Measured with a battery bank at rated DC voltage, 10x-rated current, time constant of calibrated circuit less than 50 microseconds)
‡ Typical Voltage Drop (Measured at rated current after temperature stabilizes)
Device designed to carry rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at elevated ambient temperatures.

TIME CURRENT CURVE


PACKAGING CODE
Packaging Code Description
TR2 5,000 pieces of fuses on 12mm tape-and-reel on a 13 inch (330mm) reel per EIA Standard 481


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