Axial Lead & Cartridge Fuses PICO® ll > Slo-Blo® Fuse > 473 Series 473 Series, PICO® II Slo-Blo® Fuse PS E RoHS Description The PICO® II Slo-Blo® Fuse combines time-delay performance characteristics with the proven reliability of a PICO® Fuse. Features • Enhanced inrush withstand • RoHS compliant • Small size • Wide operating temperature range • Wide range of current ratings (0.375A - 7A) • Low temperature rerating Agency Approvals Agency PS E Agency File Number Ampere Range E10480 0.375A - 7A 29862 0.375A - 7A JET 1896-31007-1004 1A - 5A Applications Resources • Medical equipment • LCD monitor • Industrial equipment • Lighting system Electrical Characteristics Additional Information Datasheet • Flat–panel Display TV Samples % of Ampere Rating Opening Time 100% 4 Hours, Min. 200% 1 Sec., Min.; 60 Sec., Max. 300% 0.2 Sec., Min.; 3 Sec., Max. 800% 0.02 Sec., Min.; 0.1 Sec., Max. Electrical Characteristics Ampere Rating (A) Amp Code 0.375 0.500 0.750 1.00 1.50 2.00 2.25 2.50 3.00 3.50 4.00 5.00 7.00 .375 .500 .750 001. 01.5 002. 2.25 02.5 003. 03.5 004. 005. 007. Max Voltage Rating (V) 125 125 125 125 125 125 125 125 125 125 125 125 125 Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 sec) Nom Voltage Drop (mV) 50A@125VAC/DC 1.7550 1.1370 0.4900 0.3000 0.1170 0.0720 0.0640 0.0520 0.0380 0.0240 0.0200 0.0133 0.0092 0.085 0.210 0.760 2.010 3.940 7.600 9.280 13.00 21.00 26.80 35.00 54.80 105.00 0.840 0.775 0.429 0.353 0.208 0.180 0.164 0.153 0.140 0.094 0.086 0.074 0.070 © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 11/11/15 Agency Approvals PS E X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Axial Lead & Cartridge Fuses PICO® ll > Slo-Blo® Fuse > 473 Series Average Time Current Curves .375A .50A .75A 1.0A 1.5A 2.0A 2.5A 3.0A 3.5A 4.0A 5.0A 7.0A Temperature Re-rating Curve 1000 TIME IN SECONDS 100 10 1 Note: Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.1 Soldering Parameters Recommended Process Parameters: Wave Parameter 0.01 0.1 1 10 100 CURRENT IN AMPERES 1000 Lead-Free Recommendation Preheat: (Depends on Flux Activation Temperature) (Typical Industry Recommendation) Temperature Minimum: 100°C Temperature Maximum: Preheat Time: 150°C 60-180 seconds Solder Pot Temperature: 260°C Maximum Solder Dwell Time: 2-5 seconds Recommended Hand-Solder Parameters: Solder Iron Temperature: 350°C +/- 5°C Heating Time: 5 seconds max. Note: These devices are not recommended for IR or Convection Reflow process. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/11/15 Axial Lead & Cartridge Fuses PICO® ll > Slo-Blo® Fuse > 473 Series Product Characteristics Materials Encapsulated, Epoxy-Coated Body; Solder Coated Copper wire leads; RoHS compliant Product: Pure Tin-coated Copper wire leads Vibration MIL-STD-202, Method 201 (10–55 Hz); MIL-STD-202, Method 204, Test Condition C (55–2000 Hz at 10 G’s Peak) Solderability MIL-STD-202, Method 208 Salt Spray Lead Pull Force MIL-STD-202, Method 211, Test Condition A (will withstand 7 lbs. axial pull test) MIL-STD-202, Method 101, Test Condition B Operating Temperature Insulation Resistance (After Opening): MIL-STD-202, Method 302, (10,000 ohms minimum at 100 volts) –55ºC to +125ºC (Consider re-rating) MIL-STD-202, Method 210, Test Condition C (20 sec at 260ºC) Shock MIL-STD-202, Method 213, Test Condition I (100 G’s peak for 6 milliseconds) Resistance to Soldering Heat Thermal Shock MIL-STD-202, Method 107, Test Condition B (–65ºC to 125ºC) Moisture Resistance MIL-STD-202, Method 106 (90–98% RH), Heat (65ºC) Dimensions Part Numbering System 0473 xxxx Y R T1 L 62.7 (2.468") 27.78 (1.094") 52.4 (2.062")* 7.11 (.280") 0.64 (.025") 6.35 (.25") tape F 1A L 27.78 (1.094") Series 3.43 (.135") MAX Current Rating 6.35 (.25") tape 5.0 (.197") F 1A L Refer to Amp Code column of Electrical Characteristics Table Quantity Y = 4000 P = 2000 M = 1000 473 series markings Type of Packaging R = Reel A = Ammo Pack X = Loose Pack Lead Length T1: 52.4mm (2.062”)* RoHS + HF Packaging Packaging Option Packaging Specification Quantity & Packaging Code *T1: 52.4mm (2.062") Tape and Reel EIA 296 Please refer to available quantities above in "Part Numbering System” Notes: * T1 dimension is defined as the length of the component between the two tapes. The full component length is 62.7mm (2.468"). © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/11/15