
Description
• Time-delay surface mount fuse
• Satisfies the EIA/IS-722 Standard
• Solder immersion compatible
Electrical Characteristics
Electrical Characteristics
% of Amp Rating | Opening Time |
100% | 4 Hours Minimum |
200% | 1 Second Minimum |
200% | 60 Seconds Maximum |
250% * | 10 Seconds Maximum |
* 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 withexceptions per EIA/IS-722 Standard
• High frequency vibration: MIL-STD-202, Method 204D,Test Condition D
• Resistance to solvents: MIL-STD-202, Method 215A
Dimensions – mm (in)
Drawing Not to Scale

Recommended Pad Layout – mm (in)


Recommended Pad Layout – mm (in)

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.
Specifications
* 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)
Specifications
Product Code | Current Rating Amps |
Voltage Rating AC DC |
Interrupting Rating* 250Vac 125Vdc |
DC Cold Resistance** (Ω) Typical | Typical Melting I2t† | Typical Voltage 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 | 1A | 250 | 125 | 50A | 50A | 0.2030 | 9.91 | 387 mV |
1025TD1.5-R | 1.5A | 250 | 125 | 50A | 50A | 0.1025 | 11.79 | 310 mV |
1025TD2-R | 2A | 250 | 125 | 50A | 50A | 0.0680 | 17.27 | 250 mV |
1025TD2.5-R | 2.5A | 250 | 125 | 50A | 50A | 0.0420 | 16.51 | 201 mV |
1025TD3-R | 3A | 250 | 125 | 50A | 50A | 0.0330 | 42.74 | 184 mV |
1025TD3.5-R | 3.5A | 250 | 125 | 50A | 50A | 0.0270 | 43.33 | 180 mV |
1025TD4-R | 4A | 250 | 125 | 50A | 50A | 0.0220 | 66.96 | 152 mV |
1025TD5-R | 5A | 250 | 125 | 50A | 50A | 0.0160 | 88.38 | 145 mV |
** 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.
Time-Current Curve

Packaging Code
Packaging Code Prefix | Description |
TR2 | 2,500 fuses on 24mm tape-and-reel on 13 inch (330mm) reel per EIA Standard 481 |
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