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| Surface Mount Fuses Thin-Film Surface Mount 0603 Very Fast-Acting Fuse 431 Series * For new designs please use the 434 or 467 Series products. (R) (R) ELECTRICAL CHARACTERISTICS: % of Ampere Rating 100% 200% 300% Opening Time at 25C 4 hours, Minimum 5 seconds, Maximum 0.2 seconds, Maximum AGENCY APPROVALS: Recognized under the Components Program of Underwriters Laboratories and Certified by CSA. AGENCY FILE NUMBERS: UL E10480, CSA LR 29862. INTERRUPTING RATINGS: .25-1A 1-5A 50 amperes at 32 VAC/VDC 35 amperes at 32 VAC/VDC 2.54 (.100") 1.60 (.063") .79 (.031") 1.02 (.040") .76 (.030") 1.09 (.043") REFLOW SOLDER .46 (.018") .36 (.014") R .20 (.008") 1.04 (.041") .43 (.017") REF. Reference Dimensions: ENVIRONMENTAL SPECIFICATIONS: Operating Temperature: -55C to 90C. Consult temperature rerating chart on page 4. For operation above 90C contact Littelfuse. Vibration: Withstands 10-55 HZ per MIL-STD-202F, Method 201A and 10-2000 HZ at 20 G's per MIL-STD-202F, Method 204D, Condition D. Insulation Resistance (After Opening): Greater than 500,000 ohms. Resistance To Soldering Heat: Withstands 60 seconds above 200C up to 260C, maximum. Thermal Shock: Withstands 5 cycles of -50C to 125C. PHYSICAL SPECIFICATIONS: Materials: Body: Epoxy Substrate O BS O LE TE Terminations: Copper/Nickel/Tin-Lead (95/5) Cover Coat: Conformal Coating 100 10 Average Time Current Curves .375A .5A .75A 1A 1.5A 2A 2.5A 3A 3.5A 4A 5A .25A Soldering Parameters: Reflow Solder-- 260C, 30 seconds maximum PACKAGING SPECIFICATIONS: 8mm Tape and Reel per PATENTED 10 SURFACE MOUNT 1 10 CURRENT IN AMPERES 100 EIA-RS481-1 (IEC 286, part 3); 5,000 per reel, add packaging suffix, NR. ORDERING INFORMATION: Catalog Number 431.250 431.375 431.500 431.750 431 001 431 01.5 431 002 431 02.5 431 003 431 03.5 431 004 431 005 1 Ampere Rating 0.25 0.375 0.5 0.75 1 1.5 2 2.5 3 3.5 4 5 Voltage Rating 32 32 32 32 32 32 32 32 32 32 32 32 Nominal Resistance Cold Ohm1 0.375 0.265 0.193 0.114 0.072 0.048 0.036 0.028 0.023 0.019 0.017 0.013 TIME IN SECONDS For New Designs Use 434 or 467 Series. 1 Melting I2t (A2 Sec.) 0.0030 0.0053 0.0087 0.0171 0.0210 0.0526 0.104 0.175 0.198 0.265 0.352 1.600 0.1 0.01 Measured at 10% of rated current, 25C. 0.001 0.1 369 w w w. l i t t e l f u s e . c o m |
Price & Availability of 431
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