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Power Inductance Renco Electronics Incorporated

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NATIONAL SEMICONDUCTOR SIMPLE SWITCHER APPLICATIONS DESCRIPTION • High Current Chokes ENVIRONMENTAL DATA • Storage temperature range: -55°C to +130°C • Operating temperature range: -40°C to +130°C PACKAGING INFORMATION • Contact Customer Support 800.645.5828 FEATURES & APPLICATIONS • Uses high saturation flux density material ideal for use in switching regulated power supplies and small-sized current chokes • Inductance ranges from 47µH to 2200 µH with DC saturation currents up to 20 A Verify operation with sample in actual circuit. Order samples at www.rencousa.com. FRONT VIEW D A C B SIDE VIEW F G E H CLEARANCE HOLE FOR 4/40 SCREW SCHEMATIC ST FN REFERENCE DESIGNS RENCO ELECTRONICS INC. 595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified Toll Free Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600 NATIONAL SEMICONDUCTOR SIMPLE SWITCHER APPLICATIONS MECHANICAL DIMENSIONS U.S. Standard (mm) PART NUMBER A (MAX.) RL-1954 RL-1956 RL-1957 RL-1958 RL-1959 0.825 (20.96) 0.825 (20.96) 1.100 (27.94) 0.825 (20.96) 0.825 (20.96) RL-1960 0.825 (20.96) RL-1961 RL-1962 RL-1963 RL-1964 RL-1965 RL-2442 RL-2443 RL-2444 1.100 (27.94) 1.100 (27.94) 1.100 (27.94) 1.600 (40.64) 1.600 (40.64) 0.825 (20.96) 0.825 (20.96) 0.825 (20.96) RL-2445 0.825 (20.96) RL-2446 RL-2447 RL-2448 1.100 (27.94) 1.100 (27.94) 0.825 (20.96) B (MAX.) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 1.100 (27.94) 1.100 (27.94) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) 0.850 (21.59) C (REF.) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.290 (7.37) 0.290 (7.37) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) 0.195 (4.95) D (MIN.) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) 0.5 (12.7) PART WEIGHT 27.0g (0.95oz) 23.9g (0.84oz) 43.8g (1.54oz) 21.2g (0.74oz) 24.6g (0.87oz) 28.6g (1.00oz) 46.8g (1.65oz) 44.1g (1.56oz) 42.5g (1.50oz) 110.1g (3.90oz) 111.2g (3.92oz) 22.1.0g (0.78oz) 25.4g (0.90oz) 24.4g (0.86oz) 26.5g (0.93oz) 43.4g (1.53oz) 47.5g (1.65oz) contact factory U.S. Standard (mm) PART NUMBER RL-1954 RL-1956 RL-1957 RL-1958 RL-1959 RL-1960 RL-1961 RL-1962 RL-1963 RL-1964 RL-1965 RL-2442 RL-2443 RL-2444 RL-2445 RL-2446 RL-2447 RL-2448 E 0.593 (15.06) 0.656 (16.66) 0.750 (19.05) 0.590 (14.97) 0.590 (14.97) 0.590 (14.97) 0.750 (19.05) 0.812 (20.62) 0.781 (19.84) 1.125 (28.59) 1.140 (28.97) 0.625 (15.88) 0.656 (16.66) 0.593 (15.06) 0.593 (15.06) 0.781 (19.84) 0.812 (20.62) 0.590 (14.97) F 0.032 (0.813) 0.036 (0.914) 0.052 (1.320) 0.016 (0.406) 0.018 (0.457) 0.023 (0.584) 0.032 (0.813) 0.036 (0.914) 0.042 (1.830) 0.058 (1.470) 0.065 (1.650) 0.042 (1.830) 0.036 (0.914) 0.032 (0.813) 0.032 (0.813) 0.042 (1.830) 0.036 (0.914) 0.016 (0.406) G 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) 0.015 (0.38) H 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) 0.05 (1.27) REFERENCE DESIGNS RENCO ELECTRONICS INC. 595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified Toll Free Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600 NATIONAL SEMICONDUCTOR SIMPLE SWITCHER APPLICATIONS PART NUMBER Inductance DCR Max. Isat Irms (µH) (Ohms) (A) (A) RL-1954 150.0 0.098 8.6 4.0 RL-1956 68.0 0.053 12.7 4.8 RL-1957 47.0 0.024 18.1 9.0 RL-1958 1500.0 1.260 2.4 0.8 RL-1959 1000.0 0.818 3.1 1.0 RL-1960 680.0 0.430 3.7 1.6 RL-1961 470.0 0.187 6.0 4.0 RL-1962 330.0 0.122 7.1 4.5 RL-1963 220.0 0.080 8.7 5.5 RL-1964 150.0 0.040 16.4 11.4 RL-1965 100.0 0.025 20.0 14.4 RL-2442 47.0 0.035 15.0 5.5 RL-2443 68.0 0.053 12.7 4.8 RL-2444 100.0 0.080 10.4 4.0 RL-2445 150.0 0.098 8.6 4.0 RL-2446 220.0 0.080 8.7 5.5 RL-2447 330.0 0.122 7.1 4.5 RL-2448 2200.0 1.540 2.0 0.8 NOTES: 1. ELECTRICAL SPECIFICATIONS MEASURED AT 25ºC 2. Isat - DC CURRENT THAT WILL CAUSE INDUCTANCE TO DROP BY 5% 3. Irms - CURRENT THAT CAUSES THE TEMPERATURE TO RISE APPROX. 40ºC ABOVE AMBIENT OF 25ºC 4. INDUCTANCE TESTED AT 10 kHz, 0.1 Vrms REFERENCE DESIGNS RENCO ELECTRONICS INC. 595 International Place, Rockledge, FL 32955-4200 USA • www.rencousa.com • ISO 9001 Certified Toll Free Engineering Hot Line: 800.645.5828 • P: 321.637.1000 • F: 321.637.1600

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