Effective May 2017
Supersedes March 2007
Technical Data 2530
6125TD
Time-delay surface mount fuse
Environmental data
• Life test: MIL-STD-202, Method 108A, Test
Condition D
• Load humidity: MIL-STD-202, Method 103B
• Moisture resistance: MIL-STD-202, Method 106E
• Terminal strength: MIL-STD-202, Method 211A
• Thermal shock: MIL-STD-202, Method 107D, air-
to-air
• Case resistance: EIA/IS-722
• Resistance to dissolution of metallization: ANSI
J-STD-002, Test D
Product features
• Mechanical shock: MIL-STD-202, Method 213B
with exceptions per EIA/IS-722 Standard
• High frequency vibration: MIL-STD-202, Method
204D, Test Condition D
• Time-delay surface mount fuse
• Satisfies the EIA/IS-722 Standard
• Solder immersion compatible
• Resistance to solvents: MIL-STD-202, Method
215A
Agency information
• UL Recognition Guide & File numbers: JDYX2 &
E19180.
• CSA Component Acceptance: 053787 C 000 &
Class No: 1422 30
Ordering
• Specify packaging and product code (i.e.,
TR1/6125TD500-R
Soldering method
ELECTRICAL CHARACTERISTICS
• Wave immersion: 260°C, 10 Sec. max.
• Infrared reflow: 260°C, 30 Sec. max.
% of Amp Rating
100%
Opening Time
4 Hours Minimum
1 Second Minimum
2-4 Seconds Typical
60 Seconds Maximum
200%
200%
200%
SPECIFICATIONS
Product
Code
Current
Rating
Voltage
Rating
Interrupting
Rating*
Resistance
(ohms)**
Typ.
Typical
Typical
Voltage
Drop‡
245 mV
250 mV
256 mV
125 mV
133 mV
130 mV
97 mV
Melting
2
AC
DC
125VAC
60VDC
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
I t†
6125TD500-R
6125TD750-R
6125TD1-R
6125TD1.5-R
6125TD2-R
6125TD2.5-R
6125TD3-R
6125TD3.5-R
6125TD4-R
6125TD5-R
6125TD7-R
500mA
750mA
1A
1.5A
2A
2.5A
3A
3.5A
4A
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
60V
60V
60V
60V
60V
60V
60V
60V
60V
60V
60V
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
50A
0.4025
0.2350
0.1680
0.0630
0.0480
0.0350
0.0263
0.0195
0.0185
0.0133
0.0087
0.716
1.07
2.88
2.35
9.45
16.2
15.3
14.5
38.8
34.4
90.2
95 mV
106 mV
100 mV
99 mV
5A
7A
*
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)
2
†
‡
Typical Melting I t (Measured with a battery bank at rated DC voltage, 10x-rated current (not to exceed IR), 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.