0262001.V Littelfuse

Axial Lead & Cartridge Fuses MICRO > Very Fast-Acting Fuse > 262/268/269 Series QPL 262/268/269 Series, MICRO Very Fast-Acting Fuse (High-Reliability) Description TM The 262/268/269 Series are highreliability MICRO fuses, with a 125V rating, very fast-acting type with high breaking capacity. The 269 series is listed under the Department of Defense Quality Product List. Features Military grade available Recognized to UL/CSA/ NMX 248-1 and UL/CSA/ Available from very low NMX 248-14 ampere of 0.002A to 5A Available in plug-in and radial leaded Agency Approvals Applications Protection of electrical, electronic, and communication Agency File Agency Ampere Range Series Number equipment having printed circuit boards (PCBs) usable in direct current (DC) and alternating current (AC) (up E10480 0.002A - 5A 262 & 268 to 400 hertz (Hz)) circuits capable of withstanding and functioning in extreme conditions found in Spacecraft or 29862 0.002A - 5A 262 & 268 Military applications as described in MIL-PRF-23419. FM07A 0.002A - 5A 269 QPL Electrical Characteristics % of Ampere Rating Ampere Rating Opening Time 100% 0.002 15 4 Hours, Min. 0.002 0.3 5 Seconds, Max. 200% 0.4 - 5 2 Seconds, Max. Electrical Characteristics Agency Approvals Ampere Max Interrupting Nominal Cold Rating Amp Code Voltage Rating Resistance (Ohms) QPL (A) Rating (V) 0.002 0.002 125 2000 X X X 0.005 0.005 125 280 X X X 0.010 0.010 125 94.0 X X X 0.015 0.015 125 44.0 X X X 0.031 0.031 125 16.45 X X X 0.050 0.050 125 3.20 X X X 0.062 0.062 125 2.25 X X X 0.100 0.100 125 1.17 X X X 0.125 0.125 125 1.0 X X X 0.200 0.200 125 2.30 X X X 0.250 0.250 125 1.75 X X X 0.300 0.300 125 1.25 X X X 10,000A 125VAC/VDC 0.400 0.400 125 0.227 X X X 0.500 0.500 125 0.167 X X X 0.600 0.600 125 0.140 X X X 0.700 0.700 125 0.114 X X X 0.750 0.750 125 0.104 X X X 0.800 0.800 125 0.094 X X X 1.00 001.0 125 0.100 X X X 01.5 01.5 125 0.063 X X X 2.00 002.0 125 0.046 X X X 3.00 003.0 125 0.034 X X X 4.00 004.0 125 0.019 X X X 5.00 005.0 125 0.018 X X X Please contact Littelfuse for Average Time Current Curve. 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/14/19Axial Lead & Cartridge Fuses MICRO > Very Fast-Acting Fuse > 262/268/269 Series Soldering Parameters - Wave Soldering 300 Recommended Process Parameters: 280 260 Wave Parameter Lead-Free Recommendation 240 Preheat: 220 (Typical Industry Recommendation) (Depends on Flux Activation Temperature) 200 180 Temperature Minimum: 100 C 160 Temperature Maximum: 150 C 140 120 Preheat Time: 60-180 seconds 100 Solder Pot Temperature: 260 C Maximum 80 60 Solder Dwell Time: 2-5 seconds 40 20 Recommended Hand-Solder Parameters: 0 Solder Iron Temperature: 350 C +/- 5C Heating Time: 5 seconds max. Time (Seconds) Note: These devices are not recommended for IR or Convection Reflow process. Preheat Time Cooling Time Dwell Time Temperature Re-rating Curve Notes: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 2. Please contact Littelfuse for average time current curve. 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/14/19 Temperature (C) - 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