Effective July 2017 Technical Data 4304 Supersedes August 2006 LCPI Toroid power inductors Applications • Filters • Buck and boost switches • Chokes Product features Environmental Data • Low loss, iron powder cores with stable electrical operating characteristics maximize • Storage temperature range (Component): -40 °C to +105 °C inductor efficiency by minimizing copper losses • Available in vertical and horizontal self leaded • Operating temperature range: -40 °C to +105 °C and header mounted configurations (ambient plus self-temperature rise) • 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

Technical Data 4304 LCPI Effective July 2017 Toroid power inductors Product Specifications VVeerrttiiccaall HHoorriizzoonnttaall HHeeaaddeerr MMoouunntteedd OOCCLL((11)) II DDCC((22)) II SSAATT((33)) VVoolltt--µµsec(4) EEnneerrggyy((55)) DDCCRR ((ΩΩ))((66)) PPaarrtt NNuummbbeerr PPaarrtt NNuummbbeerr PPaarrtt NNuummbbeerr µµHH ++//-- 2200%% (A) (A) VVµµs µµJJ mmaaxx CTX10-1-52-R CTX10-1-52LP-R CTX10-1-52M-R 10.14 2.4 2.1 5.4 15 0.0481 CTX20-1-52-R CTX20-1-52LP-R CTX20-1-52M-R 20.22 1.8 2.2 7.8 36 0.0829 CTX50-1-52-R CTX50-1-52LP-R CTX50-1-52M-R 50.29 2.6 2.7 16.3 130 0.0715 CTX100-1-52-R CTX100-1-52LP-R CTX100-1-52M-R 100.40 2.5 2.4 27.5 197 0.1060 CTX150-1-52-R CTX150-1-52LP-R CTX150-1-52M-R 151.70 2.1 2.3 35.7 283 0.1620 CTX250-1-52-R CTX250-1-52LP-R CTX250-1-52M-R 250.90 1.9 2.2 47.8 421 0.2210 CTX500-1-52-R CTX500-1-52LP-R CTX500-1-52M-R 505.00 1.7 1.9 77.9 645 0.3610 CTX750-1-52-R CTX750-1-52LP-R CTX750-1-52M-R 754.40 1.8 2.4 114.3 1530 0.4340 CTX1000-1-52-R CTX1000-1-52LPR CTX1000-1-52M-R 1004.00 1.5 2.1 131.9 1530 0.6380 CTX10-2-52-R CTX10-2-52LP-R CTX10-2-52M-R 9.60 4.7 4.5 6.6 68 0.0183 CTX20-2-52-R CTX20-2-52LP-R CTX20-2-52M-R 19.60 3.2 3.2 9.4 69 0.0392 CTX50-2-52-R CTX50-2-52LP-R CTX50-2-52M-R 50.00 4.9 4.9 21.3 420 0.0326 CTX100-2-52-R CTX100-2-52LP-R CTX100-2-52M-R 101.70 4.4 4.3 35.0 643 0.0534 CTX150-2-52-R CTX150-2-52LP-R CTX150-2-52M-R 148.00 4.3 4.0 47.6 829 0.0719 CTX250-2-52-R CTX250-2-52LP-R CTX250-2-52M-R 251.10 4.2 4.2 66.0 1540 0.0833 CTX500-2-52-R CTX500-2-52LP-R CTX500-2-52M-R 499.40 3.1 3.3 104.0 1890 0.1830 CTX750-2-52-R CTX750-2-52LP-R CTX750-2-52M-R 749.30 3.4 3.4 147.3 2960 0.2080 CTX10-5-52-R CTX10-5-52LP-R CTX10-5-52M-R 9.68 8.7 11.1 9.4 417 0.0104 CTX20-5-52-R CTX20-5-52LP-R CTX20-5-52M-R 21.25 7.8 9.3 16.0 643 0.0260 CTX50-5-52-R CTX50-5-52LP-R CTX50-5-52M-R 49.60 7.6 9.4 29.3 1530 0.0248 CTX100-5-52-R CTX100-5-52LP-R CTX100-5-52M-R 97.20 8.2 7.5 45.7 1890 0.0267 CTX150-5-52-R CTX150-5-52LP-R CTX150-5-52M-R 150.60 7.7 7.5 66.0 2960 0.0401 CTX250-5-52-R CTX250-5-52LP-R 254.40 9.2 8.1 102.4 5860 0.0400 CTX10-7-52-R CTX10-7-52LP-R CTX10-7-52M-R 10.04 11.4 13.5 11.0 640 0.0080 CTX20-7-52-R CTX20-7-52LP-R CTX20-7-52M-R 20.96 11.4 14.5 19.1 1540 0.0110 CTX50-7-52-R CTX50-7-52LP-R CTX50-7-52M-R 52.27 10.5 10.2 33.5 1900 0.0163 CTX100-7-52-R CTX100-7-52LP-R 101.40 12.0 9.1 54.2 2960 0.0167 CTX150-7-52-R CTX150-7-52LP-R 152.80 12.8 10.5 79.3 5900 0.0204 CTX10-10-52-R CTX10-10-52LP-R 10.04 16.9 20.9 13.2 1530 0.0051 CTX20-10-52-R CTX20-10-52LP-R 21.17 16.0 16.0 21.3 1900 0.0070 CTX50-10-52-R CTX50-10-52LP-R 52.37 13.9 12.7 38.9 2960 0.0124 CTX100-10-52-R CTX100-10-52LPR 99.38 17.6 13.0 64.0 5880 0.0109 CTX10-16-52-R CTX10-16-52LP-R 9.90 27.3 29.3 16.9 2970 0.0032 CTX20-16-52-R CTX20-16-52LP-R 19.24 31.5 29.5 28.1 5860 0.0034 Notes: (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 (Vµs) across the inductor. This value represents the Vµs at 100 kHz necessary to generate a core loss equal to 10% of the total losses for 30°C rise. For other frequencies and operating levels see Chart 2. (Note: skin effect losses not included.) (5) Energy storage (µJ) at ISAT. For other current levels see Chart 1. (6) Maximum D.C. resistance at +20 °C. 2 www.eaton.com/electronics

LCPI Technical Data 4304 Toroid power inductors Effective July 2017 Dimensions- mm Vertical and Horizontal Self Leaded Mounting Options VVeerrttiiccaall PP//NN HHoorriizzoonnttaall PP//NN OODD IIDD HHtt XX YY TT HH SSeeee FFiigguurree 11 SSeeee FFiigguurree 22 ((mmaaxx)) ((ttyypp)) ((mmaaxx)) ((ttyypp)) ((ttyypp)) ((ttyypp)) ((ttyypp)) CTX10-1-52-R CTX10-1-52LP-R 8.6 0.0 4.7 3.8 7.3 0.42 0.67 CTX20-1-52-R CTX20-1-52LP-R 9.1 0.0 6.7 5.6 7.4 0.37 0.62 CTX50-1-52-R CTX50-1-52LP-R 16.2 4.2 9.0 7.5 13.7 0.58 0.83 CTX100-1-52-R CTX100-1-52LP-R 15.5 4.2 12.4 10.7 13.7 0.58 0.83 CTX150-1-52-R CTX150-1-52LP-R 20.7 6.6 9.4 7.8 18.8 0.52 0.77 CTX250-1-52-R CTX250-1-52LP-R 20.9 6.0 13.0 11.0 18.8 0.52 0.77 CTX500-1-52-R CTX500-1-52LP-R 24.0 9.0 15.3 14.0 21.2 0.52 0.77 CTX750-1-52-R CTX750-1-52LP-R 29.8 11.7 17.4 15.6 28.2 0.52 0.77 CTX1000-1-52-R CTX1000-1-52LP-R 29.8 11.7 17.1 15.5 28.0 0.46 0.71 CTX10-2-52-R CTX10-2-52LP-R 12.7 0.0 7.8 6.3 11.0 0.71 0.96 CTX20-2-52-R CTX20-2-52LP-R 12.5 0.0 7.5 6.3 11.0 0.58 0.83 CTX50-2-52-R CTX50-2-52LP-R 21.6 6.1 13.6 11.0 19.5 0.89 1.14 CTX100-2-52-R CTX100-2-52LP-R 24.0 8.8 16.6 13.9 21.8 0.89 1.14 CTX150-2-52-R CTX150-2-52LP-R 30.6 11.2 11.4 9.3 28.5 0.80 1.05 CTX250-2-52-R CTX250-2-52LP-R 31.2 9.1 19.0 15.7 28.5 0.89 1.14 CTX500-2-52-R CTX500-2-52LP-R 36.7 11.7 14.8 12.5 34.5 0.71 0.96 CTX750-2-52-R CTX750-2-52LP-R 43.3 19.9 18.2 15.8 41.5 0.80 1.05 CTX10-5-52-R CTX10-5-52LP-R 22.2 5.4 13.9 11.5 19.9 1.11 1.36 CTX20-5-52-R CTX20-5-52LP-R 24.5 8.8 16.6 14.5 22.0 0.89 1.14 CTX50-5-52-R CTX50-5-52LP-R 32.3 10.1 18.9 16.5 28.8 1.11 1.36 CTX100-5-52-R CTX100-5-52LP-R 37.8 11.2 16.8 13.6 35.5 1.24 1.49 CTX150-5-52-R CTX150-5-52LP-R 46.4 18.8 19.8 16.8 43.4 1.24 1.49 CTX250-5-52-R CTX250-5-52LP-R 53.7 18.8 24.3 20.1 49.4 1.38 1.63 CTX10-7-52-R CTX10-7-52LP-R 25.7 6.5 18.0 16.0 22.4 1.38 1.63 CTX20-7-52-R CTX20-7-52LP-R 32.4 8.5 19.8 16.8 29.2 1.38 1.63 CTX50-7-52-R CTX50-7-52LP-R 39.0 10.8 16.8 13.9 35.7 1.38 1.63 CTX100-7-52-R CTX100-7-52LP-R 48.5 17.1 21.8 17.2 43.4 1.73 1.98 CTX150-7-52-R CTX150-7-52LP-R 54.5 17.1 25.4 21.2 50.9 1.73 1.98 CTX10-10-52-R CTX10-10-52LP-R 34.0 7.0 21.4 17.0 29.6 1.73 1.98 CTX20-10-52-R CTX20-10-52LP-R 40.5 9.0 18.0 14.3 35.2 1.73 1.98 CTX50-10-52-R CTX50-10-52LP-R 47.5 17.1 21.3 17.5 42.8 1.73 1.98 CTX100-10-52-R CTX100-10-52LP-R 57.0 15.0 27.5 21.3 50.6 2.15 2.45 CTX10-16-52-R CTX10-16-52LP-R 50.3 13.0 24.0 18.6 43.0 2.41 2.70 CTX20-16-52-R CTX20-16-52LP-R 59.0 13.0 28.0 23.0 50.7 2.69 2.99 Note: All dimensions are in millimeters. FIGURE 1 FIGURE 2 OODD IIDD OODD IIDD 1100..00 ++//-- 33 TT ddiiaa.. HHtt HHtt 1100..00 ++//-- 33 TT ddiiaa.. VERTICAL HORIZONTAL ((ttyypp..)) SELF LEADED SELF LEADED XX HH ddiiaa ((ttyypp..)) MOUNT MOUNT HH ddiiaa.. YY ((ttyypp..)) Drawings are not to scale. www.eaton.com/electronics 3

LCPI Technical Data 4304 Effective July 2017 Toroid power inductors Dimensions- mm Header Mounted Option HHeeaaddeerr MMoouunntteedd SSeeee OODD AA BB CC XX YY TT HH PPaarrtt NNuummbbeerr FFiigguurree ## ((mmaaxx)) ((mmaaxx)) ((mmaaxx)) ((mmaaxx)) ((ttyypp)) ((ttyypp)) ((ttyypp)) ((ttyypp)) CTX10-1-52M-R 3 8.6 9.4 9.4 6.9 6.5 6.5 — — CTX20-1-52M-R 3 9.1 9.4 9.4 9.0 6.5 6.5 — — CTX50-1-52M-R 4 16.2 19.6 16.1 20.0 15.3 6.4 — — CTX100-1-52M-R 4 15.5 19.6 16.1 19.7 15.3 6.4 — — CTX150-1-52M-R 4 20.7 19.6 16.1 24.2 15.3 6.4 — — CTX250-1-52M-R 5 20.9 31.0 16.0 22.5 20.3 10.2 1.20 1.45 CTX500-1-52M-R 5 24.0 35.4 21.7 25.0 23.0 15.4 1.20 1.45 CTX750-1-52M-R 5 29.8 35.4 21.7 31.6 23.0 15.4 1.20 1.45 CTX1000-1-52M-R 5 29.8 35.4 21.7 31.2 23.0 15.4 1.20 1.45 CTX10-2-52M-R 3 12.7 13.6 11.4 11.7 10.8 7.5 — — CTX20-2-52M-R 3 12.5 13.6 11.4 11.4 10.8 7.5 — — CTX50-2-52M-R 5 21.6 31.0 16.0 23.5 20.3 10.2 1.20 1.45 CTX100-2-52M-R 5 24.0 35.4 21.7 26.0 23.0 15.4 1.20 1.45 CTX150-2-52M-R 5 30.6 31.0 16.0 32.5 20.3 10.2 1.20 1.45 CTX250-2-52M-R 5 31.2 35.4 21.7 33.4 23.0 15.4 1.20 1.45 CTX500-2-52M-R 5 36.7 31.0 16.0 38.4 20.3 10.2 1.20 1.45 CTX750-2-52M-R 5 43.3 35.4 21.7 45.4 23.0 15.4 1.20 1.45 CTX10-5-52M-R 5 22.2 31.0 16.0 22.7 20.3 10.2 1.20 1.45 CTX20-5-52M-R 5 24.5 35.4 21.7 25.5 23.0 15.4 1.20 1.45 CTX50-5-52M-R 5 32.3 35.4 21.7 33.7 23.0 15.4 1.11 1.36 CTX100-5-52M-R 5 37.8 35.4 21.7 40.2 23.0 15.4 1.24 1.49 CTX150-5-52M-R 5 46.4 35.4 21.7 47.0 23.0 15.4 1.24 1.49 CTX10-7-52M-R 5 25.7 35.4 21.7 26.7 23.0 15.4 1.38 1.63 CTX20-7-52M-R 5 32.4 35.4 21.7 34.2 23.0 15.4 1.38 1.63 CTX50-7-52M-R 5 39.0 35.4 21.7 40.3 23.0 15.4 1.38 1.63 Note: All dimensions are in millimeters. CONNECTION FIGURE 3 FIGURE 4 FIGURE 5 DIAGRAM AA OODD OODD 22 33 1 BB CC CC 11 44 3 44..000++//---11 44..2255++//--11..55 11..00000ddiiaa.. ((ttyypp..)) CC AA AA 00..5500ddiiaa.. 33..88++//--11 11 44 11 44 (((tttyyyppp...))) BB BB 00..7700ddiiaa..((ttyypp..)) 22 33 22 PPiinnss11&&33::TTddiiaa.. 33 22 33 PPiinnss22&&44::11..2200ddiiaa.. HHoolleess11&&33::HHddiiaa.. YY 11..2255ddiiaa..((ttyypp..)) 22 HHoolleess22&&44::11..4455ddiiaa..33 22 33 YY YY 11 44 11 44 11 44 XX XX XX HEADER MOUNT Drawings are not to scale. Figure4 4 www.eaton.com/electronics

LCPI Technical Data 4304 Toroid power inductors Effective July 2017 Core loss 0 20 40 50 m) 60 mu 70 xi ma 80 m Irms ( 90 500 kHz 200 kHz 100 kHz 50 kHz 20 kHz o s fr 92 e 94 s s 95 o of L 96 % 97 98 99 10 20 30 405060 80 100 200 300 400 500600 800 000 % of applied Volt-µ seconds 1 Inductance characteristics 1000 800 600 500 400 300 y erg 200 n E of % 100 or 80 L 60 C O 50 of 40 % 30 20 10 0 50 100 150 200 250 300 % OFI SAT Inductance Energy www.eaton.com/electronics 5

Technical Data 4304 LCPI Effective July 2017 Toroid power inductors 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 © 2017 Eaton All Rights Reserved Eaton is a registered trademark. Printed in USA Publication No. 4304 All other trademarks are property July 2017 of their respective owners.