Technical Data 2531
Effective August 2017
Supersedes March 2007
Product features
6125FA
Fast acting surface mount fuse
•Fast acting surface mount fuse
•Complies with the EIA-IS-722 Standard
•Solder Immersion Compatible
•Overcurrent protection of systems up to
125 Vac/dc
•Wire-in-air design
Agency information
•UL Listed Guide and File Numbers (250 mA-12 A):
JDYX & E19180
•UL Recognized Guide and File Numbers (15 A):
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, 0.06 inch
total excursion)
•Salt spray: MIL-STD-202, Method 101, Test condition B (48
hours)
•Insulation resistance: MIL-STD-202, Method 302, Test
condition A (After opening) 10, 000 ohms min.
•Thermal shock: MIL-STD-202, Method 107, Test condition B
(-65 °C to + 125 °C)
•Resistance to solder heat: MIL_STD-202, Method 210, Test
condition F (20 sec at 260 °C
Ordering
• Specify packaging and product code
Solder information
•Wave solder: 260 °C, 10 sec max.
(MIL-STD-202, Method 210)
•Infrared reflow: 260 °C, 30 sec max.
SPECIFICATIONS
Product Voltage Interrupting Resistance Typical Typical
Code Rating Rating* (ohms)** Melt Voltage
AC DC DC 125V AC 125V DC 86V DC Typ. I
2
t† Drop (V)‡
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 I2t (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.
6125FA ratings above 2 Amps are
NOT recommended for new designs.
Recommended replacement for 2 A+ is
CB61F data sheet 4377
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/electronics
© 2017 Eaton
All Rights Reserved
Printed in USA
Publication No. 2531
August 2017
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
Life Support Policy: Eaton 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.
Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also
reserves the right to change or update, without notice, any technical information contained in this bulletin.
6125FA
Fast-acting surface mount fuse
Technical Data 2531
Effective August 2017
2.6 3.0
(0.102) (0.118)
4.0
(0.157)
8.6
(0.339)
1.35+.25 1.35+.25
(0.053+.010) (0.053+.010)
2.59+.25
(0.102+.010)
6.10+.25
(0.240+.010)
Drawing Not to Scale
Top View
Dimensions- mm (in)
2.5 9+ .250
(0.102+ .010)
End View 2.59+ .250
(0.102+.010)
Land Pattern
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
6125FA ratings above 2 Amps are
NOT recommended for new designs.
Recommended replacement for 2 A+ is
CB61F data sheet 4377
