0501015.WR1

Surface Mount Fuses Ceramic Fuse > 501 Series 501 Series – High Current 1206 Fast-Acting Fuse RoHS Pb Description The 501 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over- current protection to circuits that operate under high working ambient temperature up to 150°C. The general design ensures excellent temperature stability and performance reliability. The high I2t values which is typical in the Littelfuse Ceramic Fuse family, ensure high inrush current withstand capability. Features • Operating Temperature from -55ºC to +150ºC • Designed to provide over-current protection in high current voltage regulator module (VRM) applications Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 10A - 20A 29862 10A - 20A Electrical Characteristics for Series Ampere Rating 100% 10A – 20A 4 Hours, Minimum 350% 10A – 20A 5 Seconds, Maximum Opening Time at 25ºC • Suitable for both leaded and lead-free reflow / wave soldering Applications • Voltage Regulator Module (VRM) Equipment % of Ampere Rating • 100% Lead-free, RoHS compliant and Halogenfree • Notebook PC • DC-DC Converter Additional Information Datasheet Resources Samples Electrical Specifications by Item Ampere Rating (A) Amp Code Max. Voltage Rating (V) Interrupting Rating (DC)1 Nominal Nominal Resistance Melting I2T (Ohms)2 (A2Sec.)3 Nominal Voltage Drop At Rated Current (V)4 Nominal Power Agency Approvals Dissipation At Rated Current (W) 10 010. 32 0.00362 10.385 0.04407 0.4407 x x 12 012. 32 0.00311 20.341 0.04927 0.5912 x x 15 015. 32 0.00250 39.700 0.04843 0.7265 x x 20 020. 32 0.00194 86.360 0.05888 1.1776 x x 150 A @ 32 VDC Notes: 1. DC Interrupting Rating tested at rated voltage with time constant < 0.5 msec. 2. Nominal Resistance measured with < 10% rated current. 3. Nominal Melting I2t measured at 1 msec. opening time. For other I2t data refer to chart. 4. Nominal Voltage Drop measured at rated current after temperature has stabilized and with fuse mounted on board with 3-oz Cu trace. Devices designed to carry rated current for 4 hours minimum. It is recommended that devices be operated continuously at no more than 80% rated current. See “Temperature Re-rating Curve”for additional re-rating information. Devices designed to be mounted with marking code facing up. © 2016 Littelfuse, Inc. Specifications are subject change recommended. without notice. Specifications are subject to change without notice. Application testing istostrongly Revised: 05/10/16 Surface Mount Fuses Ceramic Fuse > 501 Series Average Time Current Curves 10A 12A 15A 20A Temperature Re-rating Curve 140 120 100 10.000 80 60 40 1.000 -65 -45 -25 -5 15 35 55 75 95 115 135 155 TEMPERATURE (°C) TIME IN SECONDS PERCENT OF RATING 100.000 0.100 Note: 1. Re-rating depicted in this curve is in addition to the standard re-rating of 20% for continuous operation. 0.010 Example: For continuous operation at 75 degrees celsius, the fuse should be rerated as follows: I = (0.80)(0.85)IRAT = (0.68)IRAT 0.001 1 10 100 1000 CURRENT IN AMPERES Soldering Parameters Pb – free assembly Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 180 seconds Average Ramp-up Rate (Liquidus Temp (TL) to peak) 3°C/second max. TS(max) to TL - Ramp-up Rate 5°C/second max. Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds 260 °C Time within 5°C of actual peak Temperature (tp) 10 – 30 seconds Ramp-down Rate 6°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Wave Soldering 260°C, 10 seconds max. © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/10/16 Critical Zone TL to TP Ramp-up TL TS(max) tL Ramp-down TS(min) 25 Peak Temperature (TP) +0/-5 tP TP Temperature Reflow Condition Preheat tS time to peak temperature (t 25ºC to peak) Time Surface Mount Fuses Ceramic Fuse > 501 Series Product Characteristics Body: Advanced Ceramic Terminations: Ag / Ni / Sn (100% Lead-free) Element Cover Coating: Lead-free Glass Materials Moisture IPC/JEDEC J-STD-020, Level 1 Sensitivity Level Solderability IPC/ECA/JEDEC J-STD-002, Condition B Humidity Test MIL-STD-202, Method 103, Conditions D Resistance to Solvents MIL-STD-202, Method 210, Condition B Dimensions Moisture Resistance MIL-STD-202, Method 106 Thermal Shock MIL-STD-202, Method 107, Condition B Mechanical Shock MIL-STD-202, Method 213, Condition A Vibration MIL-STD-202, Method 201 Vibration, High Frequency MIL-STD-202, Method 204, Condition D Dissolution of Metallization IPC/ECA/JEDEC J-STD-002, Condition D Terminal Strength IEC 60127-4 Part Marking System 3.200 ± .1778 [.126 ± .007] 20 1.00 [.04] Amp Code Marking Code 010. 10 012. 12 015. 15 020. 20 1.63 +.10/-.20 [.064 +.004/-.008] Part Numbering System 0501 020. W R 0.835 ± 0.15 [.033 ± .006] Series .520 ± .200 [.020 ± .008] 1.000 [.039] 1.500 [.059] AMP Code 1.800 [.071] Quantity W = 3000 pcs 3.500 [.138] Packing Code R = Reel Pack Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code 8mm Tape and Reel EIA-481, IEC 60286, Part 3 3000 WR © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/10/16