Axial Lead & Cartridge Fuses PICO® ll > Time-Lag > 472 Series 472 Series, ® PICO II, Time-Lag Fuse Description The 472 Series PICO® II, 125V rated time-Lag fuse is designed for applications that require moderate in-rush withstand and is in a space-saving subminature package. Features • Moderate in–rush withstand • RoHS compliant • Wide operating temperature range • Small size • Wide range of current ratings available (500mA to 5A) Agency Approvals Agency Agency File Number Ampere Range E10480 500mA - 5A • Low temperature de-rating Applications • Flat–panel display TV • Power Supply • Lighting • Audio/Video Equipment • Game Console % of Ampere Rating Opening Time 100% 4 Hours, Min. 200% 120 Seconds, Max. Electrical Characteristics Max Voltage Rating (V) Nominal Cold Resistance (Ohms) Agency Approvals Ampere Rating (A) Amp Code .500 .500 125 0.174 0.1927 x 1.00 001. 125 0.078 0.9384 x 1.50 01.5 125 0.039 2.4081 x 2.00 002. 125 0.027 4.2363 x Interrupting Rating 50 amperes at 125 VAC and VDC Nominal Melting I2t (A2 sec) 2.50 02.5 125 0.0209 7.0838 x 3.00 003. 125 0.0187 9.3600 x 5.00 005. 125 0.0084 45.9000 x © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/472.html for current information. 215 Revised: July 28, 2011 472 Series 472 Series Electrical Characteristics Introduction to & Circuit Protection Axial Lead Cartridge Fuses Transientology PICO® ll > Time-Lag > 472 Series 5.0A 100 1.0A 1.5A 2.0A 2.5A 3.0A Average Time Current Curves 0.5A Temperature Rerating Curve TIM E IN SECONDS 10 1 0.1 0.01 Note: 1. Derating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.001 0.1 Soldering Parameters 10 100 1000 CURRENT IN AM PERES Recommended Process Parameters: Wave Parameter 1 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. 472 Series 216 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/472.html for current information. Axial Lead & Cartridge Fuses PICO® ll > Time-Lag > 472 Series Product Characteristics Material Body: Ceramic Leads: Tin-coated Copper Encapsulated: Epoxy-Coated Body Product Marking Body: Brand Logo, Current Rating, T (time Lag fuse) Solderability MIL-STD-202, Method 208 Lead Pull Force MIL-STD-202, Method 211, Test Condition A (will Withstand a 7lbs. Axial pull test) Operating Temperature –55ºC to +125ºC with proper de–rating Thermal Shock MIL-STD-202, Method 213, Test Condition I (100 G’s peak for 6 milliseconds) Vibration MIL-STD-202, Method 201 (10-55 Hz); Method 204, Test Condition C (55-2000 Hz at 10 G’s Peak) Drawing ES-001148 Dimensions Part Numbering System 0472 xxxx N R T1 L 62.7 (2.468") 52.4 (2.062")* 27.78 (1.094") 7.11 (.280") 0.64 (.025") 6.35 (.25") tape 27.78 (1.094") 1A Series 2.80 (.11") LF Current Rating Refer to Amp Code column of Electrical Characteristics Table 6.35 (.25") tape 5.0 (.197") T Quantity 2A N = 5000 M = 1000 472 series markings Type of Packaging Coating Diameter (max): 0.5A-3.0A: 2.80mm 5.0A: 2.90mm R = Reel A = Ammo Pack X = Loose Pack Lead Length T1: 52.4mm (2.062”)* RoHS + HF Packaging Option Packaging Specification *T1: 52.4mm (2.062”) Tape and Reel EIA 296 Quantity 472 Series Packaging Quantity & Packaging Code Refer to the tables in Part Numbering System above Notes: * T1 dimension is defined as the length of the component between the two tapes. The full component length is 62.7mm (2.468"). © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/472.html for current information. 217 472 Series