0501012.WRA Littelfuse

Fuse Datasheet 501A Series High Current 1206 Fast-Acting Fuse Pb RoHS Description The 501A series AECQ-Compliant fuses and Halogen free fuse series are specifically tested to cater to secondary circuit protection needs of compact auto electronics application. The general design ensures excellent temperature stability and performance reliability. The high I2t values which are typical in the Littelfuse Ceramic Fuse family, ensure high inrush current withstanding capability. Features & Benefits Operating Temperature from Suitable for both leaded and -55C to +150C lead-free reflow/wave soldering Meets Littelfuses Recognized to UL/CSA/NMX automotive qualifications* 248-1 and UL/CSA/NMX 248- 14 100% Lead-free, RoHS compliant and Additional Information Halogen-free * Largely based on Littelfuse internal AEC-Q200 test plan Applications Li-ion Batter y B attery Management System Resources Accessories Samples (BMS) LED Head-Lights Agency Approvals Clusters Automotive Navigation System Agency Agency File Number Ampere Range TFT Display E10480 10A - 20A 29862 10A - 20A Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time at 25C 100% 10A 20A 4 Hours, Minimum 350% 10A 20A 5 Seconds, Maximum Electrical Specifications by Item Agency Approvals Ampere Max. Voltage Nominal Nominal Nominal Voltage Nominal Power Amp Interrupting Rating 2 Rating Rating Resistance Melting I t Drop at Rated Dissipation at Rated 1 Code (DC) 2 2 3 4 (A) (V) (Ohms) (A Sec.) Current (V) 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 150A 32VDC 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 Notes: Devices designed to carry rated current for four hours minimum. It is recommended that devices be operated 1. DC Interrupting Rating tested at rated voltage with time constant <0.5msec. continuously at no more than 80% rated current. See Temperature Re-rating Curve for additional re-rating 2. Nominal Resistance measured with <10% rated current. information. 2 2 3. Nominal Melting I t measured at 1 msec. opening time. For other I t data refer to chart. Devices designed to be mounted with marking code facing up. 4. Nominal Voltage Drop measured at rated current after temperature has stabilized and with fuse mounted on board with 3oz Cu trace. 2021 Littelfuse, Inc. 6 Specifications are subject to change without notice. Revised: GD. 09/22/21Fuse Datasheet 501A Series High Current 1206 Fast-Acting Fuse Temperature Re-rating Curve Average Time Current Curves 140 120 100 10 80 1 60 40 -65 -45 -25 -5 15 35 55 75 95 115 135 155 0.1 Temperature (C) Note: 1. Re-rating depicted in this curve is in addition to the standard re-rating of 20% for continuous operation. 0.01 Example: For continuous operation at 75 degrees celsius, the fuse should be rerated as follows: I = (0.80)(0.85)I = (0.68)I N N 0.001 1 10 100 1000 Current in Ampers Soldering Parameters Reflow Condition Pb free assembly t P - Temperature Min (T ) 150C s(min) T P Critical Zone Ramp-up T to T Pre Heat - Temperature Max (T ) L P 200C s(max) - Time (Min to Max) (t ) 60 180 seconds T s L t Average Ramp-up Rate (Liquidus Temp (T ) to L L 3C/second max. T S(max) peak) T to T - Ramp-up Rate 5C/second max. S(max) L Ramp-down - Temperature (T ) (Liquidus) 217C Preheat L Reflow T S(min) - Temperature (t ) 60 150 seconds L t S +0/-5 Peak Temperature (T ) 260 C P Time within 5C of actual peak Temperature (t ) 10 30 seconds p 25 time to peak temperature Ramp-down Rate 6C/second max. Time (t 25C to peak) Time 25C to peak Temperature (T ) 8 minutes max. P Do not exceed 260C Wave Soldering 260C, 10 seconds max. 2021 Littelfuse, Inc. 7 Specifications are subject to change without notice. Revised: GD. 09/22/21 Percent of Rating Time in Seconds 10A 12A 15A 20A Temperature