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
Agency Information
•
Environmental Data
• Operating temperature: -55°C to 125°C
• 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
Ordering
• Specify packaging and product code
Soldering Method
• Wave immersion: 260°C, 10 Sec. max.
• Solder reflow: 260°C, 30 Sec. max.
* AC Interrupting Rating (Measured at designated voltage, 100% power factor); DC Interrupting Rating (Measured at designated voltage, time constant of less than 50
** Typical Melting I
1009
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
microseconds, battery source)
(i.e., TR2/6125FF500-R)
% of Amp Rating
BU-SB09935
100%
200%
Recognition File: E19180
2
t (Measured at 72Vdc, 10X rated current (not exceed 50A - IR @ 72Vdc)
Electrical Characteristics
Current
500mA
750mA
Rating
(amps)
1.25
1.5
2.5
3.5
6.3
10
12
15
1
2
3
4
5
7
8
5 Second Maximum
4 Hours Minimum
Vac
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
Opening Time
Voltage
Rating
Vdc
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
125Vac
Specifications
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
Rating (amps)
Interrupting
72Vdc
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
Dimensions - mm (in)
Recommended Pad Layout - mm (in)
Page 1 of 2
32Vdc
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
300
Resistance
(mΩ Ω ) Typ.
DC Cold
(0.102)
(0.338)
Surface Mount Device
2.6
8.6
750
350
260
171
112
8.7
7.3
5.3
4.2
49
45
35
27
26
17
14
11
Data Sheet 4326
(0.118)
3.0
(0.157)
Melting
(A
210.59
296.10
4.0
0.152
0.355
0.456
37.25
67.75
0.08
0.22
1.67
5.20
6.24
7.28
15.1
2
7.4
9.5
I
70
2
sec)
t
Drop (mV)
Voltage
Typical
605
433
415
410
365
160
155
153
150
145
141
135
112
110
110
106
104