Axial Lead & Cartridge Fuses 3AB > Fast-Acting > 506 Series RoHS Pb 506 Series Lead-Free 3AB, Fast-Acting Fuse Description A 600Vdc rated ceramic fuse with remarkable interrupting rating in a compact 6.332mm package, which is well suited for circuit protection in high DC energy applications. Features Recognized to UL/CSA/ Superior interrupting NMX 248-1 and UL/CSA/ rating of 10,000 NMX 248-14 Amperes. Available in cartridge and Compact form factor of axial lead form. 6.332mm. Lead-free, Halogen free, Agency Approvals and RoHS compliant. Agency Certificate Number Ampere Range E10480 15A - 20A Applications N/A 15A - 20A High energy and power efficient applications. Additional Information Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time 100% 3600 sec, Min 135% 15A - 20A 3600 sec, Max Datasheet Resources Samples Accessories 200% 120 sec, Max For recommended fuse accessories for this product series, see Recommended Accessories section. Electrical Characteristic by ltem Agency Approvals Amp Rating Interrupting Nominal Cold Nominal Melting Amp Code Voltage Rating (DC) 2 2 (A) Rating Resistance (Ohms) I t (A sec.) 15 015. 600 0.008 61 x 16 016. 600 10KA 600VDC 0.008 61 x 20 020. 600 0.006 105 x 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.08/20/20Axial Lead & Cartridge Fuses 3AB > Fast-Acting > 506 Series Temperature Re-rating Curve Average Time Current Curves 10000 1000 100 10 1 0.1 0.01 0.001 0.01 0.1 1 10 100 Amps Note: Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. Product Characteristics Body : Ceramic Operating Temperature 55C to +125C Materials Cap : Nickel Plated Brass MIL-STD-202, Method 107, Thermal Shock MIL-STD-202, Method 211, Test condition B: (5 cycles -65C to 125C) Terminal Strength Test condition A Vibration MIL-STD-202, Method 201 Solderability MIL-STD-202 Method 208 MIL-STD-202, Method 103, Cap1 : Brand logo, current and voltage ratings Humidity Test condition A: High relative humidity (95%) Product Marking Cap2 : Series and agency approval marks and Elevated temperature (40C) for 240 hours Salt Spray MIL-STD-202, Method 101, Test condition B Soldering Parameters - Wave Soldering Recommended Process Parameters: 300 280 260 Wave Parameter Lead-Free Recommendation 240 220 200 Preheat: 180 (Depends on Flux Activation Temperature) (Typical Industry Recommendation) 160 Temperature Minimum: 100C 140 120 Temperature Maximum: 150C 100 80 Preheat Time: 60-180 seconds 60 Solder Pot Temperature: 260C Maximum 40 20 Solder Dwell Time: 2-5 seconds 0 Recommended Hand-Solder Parameters: Solder Iron Temperature: 350C +/- 5C Time (Seconds) Heating Time: 5 seconds max. Preheat Time Cooling Time Note: These devices are not recommended for IR or Convection Reflow process. Dwell Time 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.08/20/20 Temperature ( ) - Measured on bottom side of board 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 Time (seconds) 506015 506016 506020