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429.125WRM Datasheet(PDF) 1 Page - Bel Fuse Inc. |
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429.125WRM Datasheet(HTML) 1 Page - Bel Fuse Inc. |
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1 / 1 page Thin-Film Surface Mount 364 Surface Mount Fuses 1206 Very Fast-Acting Fuse 429 Series www .littelfuse .com Nominal Nominal Catalog Ampere Marking Voltage Resistance Melting I 2t Number Rating Code Rating Cold Ohms 1 (A 2 Sec.)2 429.125 0.125 FB 125 2.30000 0.00020 429.200 0.200 FC 125 0.93800 0.00055 429.250 0.250 FD 125 0.62500 0.00100 429.375 0.375 FE 125 0.37500 0.00280 429.500 0.500 FF 63 0.24050 0.0060 429.750 0.75 FG 63 0.13700 0.0170 429 001 1.00 FH 63 0.09950 0.035 429 1.25 1.25 FJ 63 0.07475 0.065 429 01.5 1.50 FK 63 0.06250 0.125 429 1.75 1.75 FL 63 0.05000 0.150 429 002 2.0 FN 63 0.03975 0.230 429 02.5 2.5 FO 32 0.03065 0.500 429 003 3.0 FP 32 0.02625 0.700 429 004 4.0 FS 24 0.01926 1.50 429 005 5.0 FT 24 0.01375 2.70 429 007 7.0 FU 24 0.00925 3.60 1 Measured at 10% of rated current, 25°C. 2 Measured at rated voltage. • For new designs please consult the 433 or 466 Series on pages 258-260. ELECTRICAL CHARACTERISTICS: % of Ampere Opening Rating Time at 25°C 100% 4 hours, Minimum 200% 5 seconds, Maximum 300% 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: 0.125 – 3A 50 amperes at rated voltage, VAC/VDC 4 – 7A 35 amperes at rated voltage, VAC/VDC ENVIRONMENTAL SPECIFICATIONS: Operating Temperature: – 55°C to 90°C. Consult temperature rerat- ing chart on page 4. For operation above 90°C 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 10 KOhm. Resistance to Soldering Heat: Withstands 60 seconds above 200°C up to 260°C, maximum. Thermal Shock: Withstands 5 cycles of – 55° to 125°C. PHYSICAL SPECIFICATIONS: Materials: Body: Epoxy Substrate Terminations: Copper/Nickel/Tin-Lead (95/5) Cover Coat: Conformal Coating Soldering Parameters: Reflow Solder — 260°C, 30 seconds maximum PACKAGING SPECIFICATIONS: 8mm Tape and Reel per EIA-RS481-1 (IEC 286, part 3); 3,000 per reel, add packaging suffix, WR. PATENTED ORDERING INFORMATION: CURRENT IN AMPERES 0.01 0.1 0.1 1 1 10 100 10 100 0.001 Average Time Current Curves REFLOW SOLDER RECOMMENDED PAD LAYOUTS 3.81 (.150") 1.52 (.060") 2.03 (.080") .635 (.025") 1.14 (.045") 2.49 (.098") REF. 1.52 (.060") 3.18 (.125") 1.14 (.045") 1.12 (.044") REF. ® ® For New Designs Use 433 or 466 Series. |
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