Surface Mount Fuses Thin-Film Surface Mount RoHS Pb High Current 1206 Very Fast-Acting Fuse 429 Series ® ® • RoHS compliant and Lead-Free 7A device available-add ‘L’ suffix to catalog number • For new designs up to 5A please consult the 433 or 466 Series ELECTRICAL CHARACTERISTICS: % of Ampere Rating 100% 200% 300% Opening Time at 25°C 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: 7A RECOMMENDED PAD LAYOUTS 35 amperes at rated voltage, VAC/VDC 3.18 (.125") ENVIRONMENTAL SPECIFICATIONS: Operating Temperature: – 55°C to 90°C. Consult temperature rerating 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 1.52 (.060") 1.52 (.060") 1.14 (.045") 3.81 (.150") 2.03 (.080") REFLOW SOLDER 1.12 (.044") REF. 2.49 (.098") REF. 1.14 (.045") .635 (.025") PATENTED Terminations: Standard Device: Copper/Nickel/Tin-Lead (95/5) RoHs Compliant Device: 100% Copper/Nickel/Tin Cover Coat: Conformal Coating Average Time Current Curves Soldering Parameters: SURFACE MOUNT FUSES 7A 10 100 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, WRM. Options: For RoHS Compliant and lead-free devices add the letter ‘L’ to end of packaging suffix. Example: 0429007.WRML (RoHS Compliant 7A, 3,000 per reel). 10 TIME IN SECONDS ORDERING INFORMATION: For Low-Current Designs Use 433 or 466 Series. Catalog Number 429.125 429.200 429.250 429.375 429.500 429.750 429 001 429 007 429 007L 1 Ampere Rating 0.125 0.200 0.250 0.375 0.500 0.75 1.00 7.0 7.0 Nominal Voltage Rating 125 125 125 125 63 63 63 24 24 Marking Code FB FC FD FE FF FG FH FU 7 Measured at 10% of rated current, 25°C. 2 Nominal Resistance Cold Ohms1 2.30000 0.93800 0.62500 0.37500 0.24050 0.13700 0.09950 0.00925 0.00925 Melting I 2t (A2 Sec.)2 0.00020 0.00055 0.00100 0.00280 0.0060 0.0170 0.035 3.60 3.60 1 0.1 0.01 Measured at rated voltage. 0.001 0.1 w w w. l i t t e l f u s e . c o m 1 10 CURRENT IN AMPERES 100 367