Brick™ Fuses 1025TD Series, Time-Delay Description • Time-delay surface mount fuse • Satisfies the EIA/IS-722 Standard • Solder immersion compatible Electrical Characteristics % of Amp Rating Opening Time 100% 4 Hours Minimum 200% 1 Second Minimum 200% 60 Seconds Maximum 250% * 10 Seconds Maximum Dimensions – mm (in) Drawing Not to Scale * 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 Recommended Pad Layout – mm (in) 3.30 (0.130) 4.38 (0.172) 6.79 (0.267) 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 Product Code 1025TD250-R 1025TD500-R 1025TD750-R 1025TD1-R 1025TD1.5-R 1025TD2-R 1025TD2.5-R 1025TD3-R 1025TD3.5-R 1025TD4-R 1025TD5-R Current Rating Amps 250mA 500mA 750mA 1 1.5 2 2.5 3 3.5 4 5 Voltage Rating AC DC 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 Interrupting Rating* 250Vac 125Vdc 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A 50A DC Cold Ω) Resistance** (Ω Typical 4.200 0.5500 0.317 0.2030 0.1025 0.0680 0.0420 0.0330 0.0270 0.0220 0.0160 Typical Melting I2t† 0.128 1.47 0.93 9.91 11.79 17.27 16.51 42.74 43.33 66.96 88.38 Typical Voltage Drop‡ 1900 mV 455 mV 400 mV 387 mV 310 mV 250 mV 201 mV 184 mV 180 mV 152 mV 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 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. 0608 BU-SB08288 Page 1 of 2 Data Sheet 4344 Time-Current Curve Packaging Code Packaging Code Prefix TR2 Description 2,500 fuses on 24mm tape-and-reel on 13 inch (330mm) reel per EIA Standard 481 This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. Life Support Policy: Cooper Bussmann 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. © 2008 Cooper Bussmann St. Louis, MO 63178 w w w. c o o p e r b u s s m a n n . c o m 0608 BU-SB08288 Page 2 of 2 Data Sheet 4344