Surface Mount Fuses Thin-Film Surface Mount SlimLine™ 0603 Very Fast-Acting Fuse 434 Series ® • For RoHS compliant and Lead-Free designs use 467 series. • The SlimLine 0603 fuse is an extremely small, low profile design (0603 chip size) utilizing thin-film technology to achieve precise control of electrical characteristics. • The lower height profile produces a flat surface for improved performance in pick-and-place operations and an alternate solution for height critical applications. ELECTRICAL CHARACTERISTICS: % of Ampere Rating 100% Opening Time at 25°C 4 hours, Minimum 200% 300% Reference Dimensions: 1.60 (.063") .127 (.005") 5 seconds, Maximum 0.2 seconds, Maximum Sn/Pb AGENCY APPROVALS: Recognized under the Components Program of Underwriters Laboratories and Certified by CSA. AGENCY FILE NUMBERS: UL E10480, CSA LR 29862. Coating .279 (.011") INTERRUPTING RATINGS: .25–1A 1.25–5A .305 (.012") .254 (.010") MARKING CODE VARIES WITH AMPERAGE RATING (SEE CHART) 50 A @ 32 V AC/DC 35 A @ 32 V AC/DC Cu ENVIRONMENTAL SPECIFICATIONS: Operating Temperature: –55°C to 90°C. Consult temperature rerating chart on page 4. For operation above 90°C contact Littelfuse. Vibration: Per MIL-STD-202F. Insulation Resistance (After Opening): Greater than 10,000 ohms. Resistance To Soldering Heat: Withstands 60 seconds above 200°C up to 260°C, maximum. Thermal Shock: Withstands 5 cycles of –55°C to 125°C. Sn/Pb Sn/Pb .813 (.032") 1.09 (.043") 1.02 (.040") PHYSICAL SPECIFICATIONS: Materials: Body: Epoxy Substrate 3.20 (.126") 1.09 (.043") WAVE SOLDER Terminations: Copper/Nickel/Tin-Lead (95/5) Cover Coat: Conformal Coating Wave Solder — 260°C, 10 seconds maximum Reflow Solder— 260°C, 30 seconds maximum PACKAGING SPECIFICATIONS: 8mm Tape and Reel per EIARS481-1 (IEC 286, part 3); 5,000 per reel, add packaging suffix, NR. 1.02 (.040") .762 (.030") 1.09 (.043") REFLOW SOLDER Average Time Current Curves .25A .375A .5A .68A .75A 1A 1.5A 2A 2.5A 3A 3.5A 4A 5A Soldering Parameters(see page 3 for typical soldering profile): 2.54 (.100") 100 PATENTED: ORDERING INFORMATION: 1 2 Ampere Rating .25 .375 .5 .68 .75 1 1.25 1.5 1.75 2 2.5 3 3.5 4 5 Marking Code D E F X G H J K L N O P R S T Voltage Rating 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 Melting I2t (A2 Sec.) 2 0.0030 0.0053 0.0087 0.0109 0.0171 0.0210 0.0320 0.0526 0.0661 0.104 0.175 0.198 0.265 0.352 1.297 TIME IN SECONDS Catalog Number 0434.250 0434.375 0434.500 0434.680 0434.750 0434 001. 0434 1.25 0434 01.5 0434 1.75 0434 002. 0434 02.5 0434 003. 0434 03.5 0434 004. 0434 005. 10 Nominal Resistance Cold Ohm1 0.375 0.265 0.193 0.125 0.114 0.072 0.054 0.048 0.039 0.036 0.028 0.023 0.019 0.017 0.013 0.1 0.01 0.001 Measured at 10% of rated current, 25°C. Measured at rated voltage. 372 1 w w w. l i t t e l f u s e . c o m 0.1 1 10 CURRENT IN AMPERES 100 ®