Description
• Time-delay surface mount fuse
• Satisfies the EIA/IS-722 Standard
• Solder immersion compatible
* If fuse does not open @ 200% in 60 seconds, raise current to 250%
and the fuse must open in 10 seconds maximum.
Agency Information
• UL Recognition Guide & File numbers:
JDYX2 & E19180 (250mA - 5A)
• CSA Component Acceptance:
File # 053787 C000, Class # 1422 30
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
• 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
• Resistance to solvents: MIL-STD-202, Method 215A
Ordering
• Specify packaging and product code
(i.e., TR2/1025TD250-R)
Soldering Method
• Wave immersion: 260°C, 10 sec max.
• Infrared: 260°C, 30 sec max.
Recommended Pad Layout – mm (in)
Dimensions – mm (in)
Drawing Not to Scale
Electrical Characteristics
% of Amp Rating Opening Time
100% 4 Hours Minimum
200% 1 Second Minimum
200% 60 Seconds Maximum
250% * 10 Seconds Maximum
Specifications
Current Voltage Interrupting DC Cold Typical Typical
Product Code Rating Rating Rating* Resistance** (
ΩΩ
) Melting Voltage
Amps AC DC 250Vac 125Vdc Typical I
2
t† Drop‡
1025TD250-R 250mA 250 125 50A 50A 4.200 0.128 1900 mV
1025TD500-R 500mA 250 125 50A 50A 0.5500 1.47 455 mV
1025TD750-R 750mA 250 125 50A 50A 0.317 0.93 400 mV
1025TD1-R 1 250 125 50A 50A 0.2030 9.91 387 mV
1025TD1.5-R 1.5 250 125 50A 50A 0.1025 11.79 310 mV
1025TD2-R 2 250 125 50A 50A 0.0680 17.27 250 mV
1025TD2.5-R 2.5 250 125 50A 50A 0.0420 16.51 201 mV
1025TD3-R 3 250 125 50A 50A 0.0330 42.74 184 mV
1025TD3.5-R 3.5 250 125 50A 50A 0.0270 43.33 180 mV
1025TD4-R 4 250 125 50A 50A 0.0220 66.96 152 mV
1025TD5-R 5 250 125 50A 50A 0.0160 88.38 145 mV
* AC Interrupting Rating (Measured at designated voltage, 100% power factor random closing); DC Interrupting Rating (Measured at designated voltage, time
constant of the calibrated circuit is less than 50 microseconds, battery source)
** DC Cold Resistance (Measured at ≤10% of rated current)
† Typical Melting I
2
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.
Brick
™
Fuses
1025TD Series, Time-Delay
0608 BU-SB08288 Page 1 of 2 Data Sheet 4344
