Technical Data 10338 Effective October 2017 Supersedes October 2014 RL1218 Unshielded radial leaded drum core inductors Applications * LED Drivers and lighting * Utility meters * Appliances and white goods * Motor drives * Power supplies * General purpose filtering Environmental data * Product features * Unshielded, leaded drum core * Protective sleeving over winding * Inductance range from 4.7 H to 12,000 H * Current range from 0.20 A to 15 A * * 12.2 mm OD x 18.0 mm through-hole package Ferrite core material * Storage temperature range (Component): -40 C to +125 C Operating temperature range: -40 C to +125 C (ambient plus self-temperature rise) HALOGEN Pb HF FREE Technical Data 10338 Effective October 2017 RL1218 Unshielded radial leaded drum core inductors Product specifications Part Number4 OCL (H)10% Irms2 (A) Isat3 (A) DCR () @ +20 C max. SRF (MHz) typ. RL1218-4R7-R 4.720% 5.65 15.0 0.017 34 RL1218-8R2-R 8.220% 4.75 10.7 0.025 25 RL1218-100-R 10 4.61 10.2 0.026 21 RL1218-150-R 15 4.05 8.00 0.034 11 RL1218-220-R 22 3.64 6.60 0.042 8 RL1218-270-R 27 3.44 5.97 0.047 6 RL1218-330-R 33 3.27 5.45 0.052 5 RL1218-101-R 100 2.31 3.16 0.102 3 RL1218-151-R 150 1.89 2.56 0.159 3 RL1218-181-R 180 1.64 2.34 0.211 3 RL1218-221-R 220 1.53 2.10 0.241 2 RL1218-331-R 330 1.25 1.73 0.366 2 RL1218-561-R 560 0.968 1.33 0.606 1 RL1218-102-R 1000 0.677 0.992 1.23 1 RL1218-152-R 1500 0.597 0.809 1.59 0.81 RL1218-472-R 4700 0.322 0.457 5.46 0.40 RL1218-562-R 5600 0.305 0.418 6.11 0.40 RL1218-682-R 6800 0.263 0.379 8.20 0.36 RL1218-123-R 12,000 0.201 0.286 14.1 0.28 1. Open Circuit Inductance (OCL) Test Parameters: 10 kHz, 0.1 Vrms, 0.0 Adc, +25 C 2. Irms: DC current for an approximate temperature rise of 40 C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed +125 C under worst case operating conditions verified in the end application. 3. Isat: Peak current for approximately 5% rolloff at +25 C 4. Part Number Definition: RL1218-yyy-R - RL1218 = Product code and size - yyy= Inductance value in H, R = decimal point, if no R is present then third character = number of zeros. - "-R" suffix = RoHS compliant Dimensions - mm Top view Side view Recommended pad layout Part marking: 4xxx wly R 4 = RL1218 xxx = inductance in H, R = decimal point; if there is no "R" then third character = number of zeros wly = date code, R = revision level * Lead length is after the components are trimmed from the packaging tape roll. Do not route traces or vias underneath the inductor 2 Schematic RL1218 Unshielded radial leaded drum core inductors Technical Data 10338 Effective October 2017 Packaging information - mm 15 15 Packaged 800 parts per roll Inductance characteristics % of OCL vs. % of Isat 120 100 % of OCL 80 60 40 20 0 0 20 40 60 80 100 120 140 160 180 % of Isat www.eaton.com/electronics 3 Technical Data 10338 RL1218 Unshielded radial leaded drum core inductors Effective October 2017 Wave solder profile tp Temperature Tp First Wave Second Wave Tsmax Tstyp Tsmin Preheat area Cool down area Time Reference EN 61760-1:2006 Profile Feature Preheat Temperature min. (Tsmin) Temperature typ. (Tstyp) Temperature max. (Tsmax) Time (Tsmin to Tsmax) (ts) preheat to max Temeperature Peak temperature (Tp) Time at peak temperature (t p) Ramp-down rate Time 25C to 25C Standard SnPb Solder Lead (Pb) Free Solder 100C 120C 130C 70 seconds 100C 120C 130C 70 seconds 150C max. 235 C - 260 C 150C max. 250 C - 260 C 10 seconds max 5 seconds max each wave ~ 2 K/s min ~3.5 K/s typ ~5 K/s max 4 minutes 10 seconds max 5 seconds max each wave ~ 2 K/s min ~3.5 K/s typ ~5 K/s max 4 minutes Manual solder 350C, 4-5 seconds. (by soldering iron), generally manual, hand soldering is 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. 10338 BU-SB14695 October 2017 Eaton is a registered trademark. All other trademarks are property of their respective owners. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Eaton: RL1218-4R7-R RL1218-8R2-R RL1218-100-R RL1218-150-R RL1218-220-R RL1218-270-R RL1218-330-R RL1218-101-R RL1218-151-R RL1218-181-R RL1218-221-R RL1218-331-R RL1218-561-R RL1218-102-R RL1218-152-R RL1218-472-R RL1218-562-R RL1218-682-R RL1218-123-R