Technical Data 4304 Effective July 2017 Supersedes August 2006 LCPI Toroid power inductors Applications Product features * * * * * * Low loss, iron powder cores with stable electrical operating characteristics maximize inductor efficiency by minimizing copper losses Available in vertical and horizontal self leaded and header mounted configurations Inductance values range from 10 uH to 1000 uH Current values range from 1.5 A to 29.5 A Meets UL 94V-0 flammability standard Iron powder core material * Filters * Buck and boost switches * Chokes Environmental Data * Storage temperature range (Component): -40 C to +105 C * Operating temperature range: -40 C to +105 C (ambient plus self-temperature rise) * Solder reflow temperature: J-STD-020 (latest revision) compliant Technical Data 4304 Effective July 2017 Product Specifications Vertical Part Number CTX10-1-52-R CTX20-1-52-R CTX50-1-52-R CTX100-1-52-R CTX150-1-52-R CTX250-1-52-R CTX500-1-52-R CTX750-1-52-R CTX1000-1-52-R CTX10-2-52-R CTX20-2-52-R CTX50-2-52-R CTX100-2-52-R CTX150-2-52-R CTX250-2-52-R CTX500-2-52-R CTX750-2-52-R CTX10-5-52-R CTX20-5-52-R CTX50-5-52-R CTX100-5-52-R CTX150-5-52-R CTX250-5-52-R CTX10-7-52-R CTX20-7-52-R CTX50-7-52-R CTX100-7-52-R CTX150-7-52-R CTX10-10-52-R CTX20-10-52-R CTX50-10-52-R CTX100-10-52-R CTX10-16-52-R CTX20-16-52-R Notes: 2 Horizontal Part Number CTX10-1-52LP-R CTX20-1-52LP-R CTX50-1-52LP-R CTX100-1-52LP-R CTX150-1-52LP-R CTX250-1-52LP-R CTX500-1-52LP-R CTX750-1-52LP-R CTX1000-1-52LPR CTX10-2-52LP-R CTX20-2-52LP-R CTX50-2-52LP-R CTX100-2-52LP-R CTX150-2-52LP-R CTX250-2-52LP-R CTX500-2-52LP-R CTX750-2-52LP-R CTX10-5-52LP-R CTX20-5-52LP-R CTX50-5-52LP-R CTX100-5-52LP-R CTX150-5-52LP-R CTX250-5-52LP-R CTX10-7-52LP-R CTX20-7-52LP-R CTX50-7-52LP-R CTX100-7-52LP-R CTX150-7-52LP-R CTX10-10-52LP-R CTX20-10-52LP-R CTX50-10-52LP-R CTX100-10-52LPR CTX10-16-52LP-R CTX20-16-52LP-R Header Mounted Part Number CTX10-1-52M-R CTX20-1-52M-R CTX50-1-52M-R CTX100-1-52M-R CTX150-1-52M-R CTX250-1-52M-R CTX500-1-52M-R CTX750-1-52M-R CTX1000-1-52M-R CTX10-2-52M-R CTX20-2-52M-R CTX50-2-52M-R CTX100-2-52M-R CTX150-2-52M-R CTX250-2-52M-R CTX500-2-52M-R CTX750-2-52M-R CTX10-5-52M-R CTX20-5-52M-R CTX50-5-52M-R CTX100-5-52M-R CTX150-5-52M-R CTX10-7-52M-R CTX20-7-52M-R CTX50-7-52M-R OCL(1) H +/- 20% 10.14 20.22 50.29 100.40 151.70 250.90 505.00 754.40 1004.00 9.60 19.60 50.00 101.70 148.00 251.10 499.40 749.30 9.68 21.25 49.60 97.20 150.60 254.40 10.04 20.96 52.27 101.40 152.80 10.04 21.17 52.37 99.38 9.90 19.24 I DC(2) (A) 2.4 1.8 2.6 2.5 2.1 1.9 1.7 1.8 1.5 4.7 3.2 4.9 4.4 4.3 4.2 3.1 3.4 8.7 7.8 7.6 8.2 7.7 9.2 11.4 11.4 10.5 12.0 12.8 16.9 16.0 13.9 17.6 27.3 31.5 I SAT(3) (A) 2.1 2.2 2.7 2.4 2.3 2.2 1.9 2.4 2.1 4.5 3.2 4.9 4.3 4.0 4.2 3.3 3.4 11.1 9.3 9.4 7.5 7.5 8.1 13.5 14.5 10.2 9.1 10.5 20.9 16.0 12.7 13.0 29.3 29.5 Volt-sec(4) Vs 5.4 7.8 16.3 27.5 35.7 47.8 77.9 114.3 131.9 6.6 9.4 21.3 35.0 47.6 66.0 104.0 147.3 9.4 16.0 29.3 45.7 66.0 102.4 11.0 19.1 33.5 54.2 79.3 13.2 21.3 38.9 64.0 16.9 28.1 Energy(5) J 15 36 130 197 283 421 645 1530 1530 68 69 420 643 829 1540 1890 2960 417 643 1530 1890 2960 5860 640 1540 1900 2960 5900 1530 1900 2960 5880 2970 5860 DCR ()(6) max 0.0481 0.0829 0.0715 0.1060 0.1620 0.2210 0.3610 0.4340 0.6380 0.0183 0.0392 0.0326 0.0534 0.0719 0.0833 0.1830 0.2080 0.0104 0.0260 0.0248 0.0267 0.0401 0.0400 0.0080 0.0110 0.0163 0.0167 0.0204 0.0051 0.0070 0.0124 0.0109 0.0032 0.0034 (1) Open circuit inductance test parameters: 100 kHz, 0.250 Vrms, 0 Adc. (2) DC current for an approximate T of 30 C at +75 C Ambient with no core loss. See Chart 2 for derating of IIdc with core loss. (3) Peak current for an approximate 30% roll-off in OCL. For other current levels see Chart 1. (4) Applied Volt-Time product (Vs) across the inductor. This value represents the Vs at 100 kHz necessary to generate a core loss equal to 10% of the total losses for 30C rise. For other frequencies and operating levels see Chart 2. (Note: skin effect losses not included.) (5) Energy storage (J) at ISAT. For other current levels see Chart 1. (6) Maximum D.C. resistance at +20 C. www.eaton.com/electronics LCPI Toroid power inductors Technical Data 4304 Effective July 2017 Dimensions- mm Vertical and Horizontal Self Leaded Mounting Options Vertical P/N See Figure 1 CTX10-1-52-R CTX20-1-52-R CTX50-1-52-R CTX100-1-52-R CTX150-1-52-R CTX250-1-52-R CTX500-1-52-R CTX750-1-52-R CTX1000-1-52-R CTX10-2-52-R CTX20-2-52-R CTX50-2-52-R CTX100-2-52-R CTX150-2-52-R CTX250-2-52-R CTX500-2-52-R CTX750-2-52-R CTX10-5-52-R CTX20-5-52-R CTX50-5-52-R CTX100-5-52-R CTX150-5-52-R CTX250-5-52-R CTX10-7-52-R CTX20-7-52-R CTX50-7-52-R CTX100-7-52-R CTX150-7-52-R CTX10-10-52-R CTX20-10-52-R CTX50-10-52-R CTX100-10-52-R CTX10-16-52-R CTX20-16-52-R Horizontal P/N See Figure 2 CTX10-1-52LP-R CTX20-1-52LP-R CTX50-1-52LP-R CTX100-1-52LP-R CTX150-1-52LP-R CTX250-1-52LP-R CTX500-1-52LP-R CTX750-1-52LP-R CTX1000-1-52LP-R CTX10-2-52LP-R CTX20-2-52LP-R CTX50-2-52LP-R CTX100-2-52LP-R CTX150-2-52LP-R CTX250-2-52LP-R CTX500-2-52LP-R CTX750-2-52LP-R CTX10-5-52LP-R CTX20-5-52LP-R CTX50-5-52LP-R CTX100-5-52LP-R CTX150-5-52LP-R CTX250-5-52LP-R CTX10-7-52LP-R CTX20-7-52LP-R CTX50-7-52LP-R CTX100-7-52LP-R CTX150-7-52LP-R CTX10-10-52LP-R CTX20-10-52LP-R CTX50-10-52LP-R CTX100-10-52LP-R CTX10-16-52LP-R CTX20-16-52LP-R OD (max) 8.6 9.1 16.2 15.5 20.7 20.9 24.0 29.8 29.8 12.7 12.5 21.6 24.0 30.6 31.2 36.7 43.3 22.2 24.5 32.3 37.8 46.4 53.7 25.7 32.4 39.0 48.5 54.5 34.0 40.5 47.5 57.0 50.3 59.0 ID (typ) 0.0 0.0 4.2 4.2 6.6 6.0 9.0 11.7 11.7 0.0 0.0 6.1 8.8 11.2 9.1 11.7 19.9 5.4 8.8 10.1 11.2 18.8 18.8 6.5 8.5 10.8 17.1 17.1 7.0 9.0 17.1 15.0 13.0 13.0 Ht (max) 4.7 6.7 9.0 12.4 9.4 13.0 15.3 17.4 17.1 7.8 7.5 13.6 16.6 11.4 19.0 14.8 18.2 13.9 16.6 18.9 16.8 19.8 24.3 18.0 19.8 16.8 21.8 25.4 21.4 18.0 21.3 27.5 24.0 28.0 X (typ) 3.8 5.6 7.5 10.7 7.8 11.0 14.0 15.6 15.5 6.3 6.3 11.0 13.9 9.3 15.7 12.5 15.8 11.5 14.5 16.5 13.6 16.8 20.1 16.0 16.8 13.9 17.2 21.2 17.0 14.3 17.5 21.3 18.6 23.0 Y (typ) 7.3 7.4 13.7 13.7 18.8 18.8 21.2 28.2 28.0 11.0 11.0 19.5 21.8 28.5 28.5 34.5 41.5 19.9 22.0 28.8 35.5 43.4 49.4 22.4 29.2 35.7 43.4 50.9 29.6 35.2 42.8 50.6 43.0 50.7 T (typ) 0.42 0.37 0.58 0.58 0.52 0.52 0.52 0.52 0.46 0.71 0.58 0.89 0.89 0.80 0.89 0.71 0.80 1.11 0.89 1.11 1.24 1.24 1.38 1.38 1.38 1.38 1.73 1.73 1.73 1.73 1.73 2.15 2.41 2.69 H (typ) 0.67 0.62 0.83 0.83 0.77 0.77 0.77 0.77 0.71 0.96 0.83 1.14 1.14 1.05 1.14 0.96 1.05 1.36 1.14 1.36 1.49 1.49 1.63 1.63 1.63 1.63 1.98 1.98 1.98 1.98 1.98 2.45 2.70 2.99 Note: All dimensions are in millimeters. FIGURE 2 FIGURE 1 OD ID ID OD 10.0 +/- 3 T dia. Ht Ht 10.0 +/- 3 VERTICAL SELF LEADED MOUNT HORIZONTAL SELF LEADED MOUNT T dia. (typ.) (typ H dia (typ.) (typ X H dia. (typ.) (typ Y Drawings are not to scale. www.eaton.com/electronics 3 Technical Data 4304 Effective July 2017 Dimensions- mm Header Mounted Option Header Mounted Part Number CTX10-1-52M-R CTX20-1-52M-R CTX50-1-52M-R CTX100-1-52M-R CTX150-1-52M-R CTX250-1-52M-R CTX500-1-52M-R CTX750-1-52M-R CTX1000-1-52M-R CTX10-2-52M-R CTX20-2-52M-R CTX50-2-52M-R CTX100-2-52M-R CTX150-2-52M-R CTX250-2-52M-R CTX500-2-52M-R CTX750-2-52M-R CTX10-5-52M-R CTX20-5-52M-R CTX50-5-52M-R CTX100-5-52M-R CTX150-5-52M-R CTX10-7-52M-R CTX20-7-52M-R CTX50-7-52M-R See Figure # 3 3 4 4 4 5 5 5 5 3 3 5 5 5 5 5 5 5 5 5 5 5 5 5 5 OD (max) 8.6 9.1 16.2 15.5 20.7 20.9 24.0 29.8 29.8 12.7 12.5 21.6 24.0 30.6 31.2 36.7 43.3 22.2 24.5 32.3 37.8 46.4 25.7 32.4 39.0 A (max) 9.4 9.4 19.6 19.6 19.6 31.0 35.4 35.4 35.4 13.6 13.6 31.0 35.4 31.0 35.4 31.0 35.4 31.0 35.4 35.4 35.4 35.4 35.4 35.4 35.4 B (max) 9.4 9.4 16.1 16.1 16.1 16.0 21.7 21.7 21.7 11.4 11.4 16.0 21.7 16.0 21.7 16.0 21.7 16.0 21.7 21.7 21.7 21.7 21.7 21.7 21.7 C (max) 6.9 9.0 20.0 19.7 24.2 22.5 25.0 31.6 31.2 11.7 11.4 23.5 26.0 32.5 33.4 38.4 45.4 22.7 25.5 33.7 40.2 47.0 26.7 34.2 40.3 X (typ) 6.5 6.5 15.3 15.3 15.3 20.3 23.0 23.0 23.0 10.8 10.8 20.3 23.0 20.3 23.0 20.3 23.0 20.3 23.0 23.0 23.0 23.0 23.0 23.0 23.0 Y (typ) 6.5 6.5 6.4 6.4 6.4 10.2 15.4 15.4 15.4 7.5 7.5 10.2 15.4 10.2 15.4 10.2 15.4 10.2 15.4 15.4 15.4 15.4 15.4 15.4 15.4 T (typ) -- -- -- -- -- 1.20 1.20 1.20 1.20 -- -- 1.20 1.20 1.20 1.20 1.20 1.20 1.20 1.20 1.11 1.24 1.24 1.38 1.38 1.38 H (typ) -- -- -- -- -- 1.45 1.45 1.45 1.45 -- -- 1.45 1.45 1.45 1.45 1.45 1.45 1.45 1.45 1.36 1.49 1.49 1.63 1.63 1.63 Note: All dimensions are in millimeters. FIGURE 3 CONNECTION DIAGRAM FIGURE 4 A FIGURE 5 OD OD 2 3 1 B C 1 C 4 3 4.2 4. 25 +/+/- 1.5 4.0 4. 0+ +//- 1 1.0 .00 0 di dia. (typ.) C 3.8 3. 8+ +//- 1 0.5 .50 0 di dia. (typ.)) (typ. A A 1 4 B 2 0.70 .70d dia. (typ. typ.)) 2 1 4 2 3 3 3 2 Holes Hole s 1 & 3: 3: H dia. Holes 2 & 4: Holes 4: 1. 1.45 dia. 3 1 4 1.25 .25d dia. (typ.) Y 2 3 1 4 Pins 1 & 3: Pins 3: T di dia. Pins Pin s 2 & 4: 4: 1.2 .20 0 di dia. Y Y 4 1 HEADER MOUNT X X Drawings are not to scale. Figure4 4 www.eaton.com/electronics B X LCPI Toroid power inductors Technical Data 4304 Effective July 2017 Core loss 0 40 50 60 70 kH z 20 kH z kH z 50 100 200 90 kH z kH z 80 500 % of Losses from Irms (maximum) 20 92 94 95 96 97 98 % of applied Volt- seconds 800 1000 500 600 400 300 200 100 80 40 50 60 30 10 20 99 Inductance characteristics 1000 800 600 500 400 % of OCL or % of Energy 300 200 100 80 60 50 40 30 20 10 0 50 100 150 200 250 300 % OF I SAT Inductance Energy www.eaton.com/electronics 5 LCPI Toroid power inductors Technical Data 4304 Effective July 2017 Wave solder profile- Through-hole components Reflow soldering not recommended Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. Eaton Electronics Division 1000 Eaton Boulevard Cleveland, OH 44122 United States www.eaton.com/electronics (c) 2017 Eaton All Rights Reserved Printed in USA Publication No. 4304 July 2017 Eaton is a registered trademark. All other trademarks are property of their respective owners. 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