Features Semi-shielded construction Inductance range: 1 to 220 H Rated current up to 3.7 A AEC-Q200 qualied RoHS compliant* and halogen free** SRN4018TA Series - Semi-shielded Power Inductors Operating Temperature Inductance SRF DCR Irms Isat ................................. -55 C to +125 C 100 kHz / 1 V (MHz) () (A) (A) (Temperature rise included) Bourns Part No. L (H) Tol. % Typ. 20 % Typ. Typ. Storage Temperature .. -55 C to +125 C SRN4018TA-1R0M 1.0 20 160 0.027 3.7 4 Temperature Rise .....40 C at rated Irms Rated Current SRN4018TA-1R2M 1.2 20 150 0.028 3.5 3.6 ............ Inductance drops 30 % at Isat SRN4018TA-1R5M 1.5 20 110 0.032 3.3 3.3 9 Failure In Time (FIT) ........24.7/10 hours SRN4018TA-2R2M 2.2 20 70 0.042 2.9 3 Mean Time Between Failures (MTBF) SRN4018TA-3R3M 3.3 20 60 0.055 2.3 2.3 6 ..................................40.4 x 10 hours SRN4018TA-4R7M 4.7 20 50 0.07 2 2 Materials SRN4018TA-6R8M 6.8 20 40 0.098 1.7 1.7 SRN4018TA-100M 10 20 35 0.15 1.5 1.5 Core ..............................................Ferrite SRN4018TA-150M 15 20 25 0.19 1.1 1.1 Wire ............................Enameled copper Terminal Finish ...................................Sn SRN4018TA-220M 22 20 20 0.29 0.9 0.9 Coating ................. Magnetic epoxy resin SRN4018TA-330M 33 20 12 0.405 0.75 0.75 Packaging ..... 3000 pcs. per 13-inch reel SRN4018TA-470M 47 20 10 0.55 0.6 0.6 SRN4018TA-680M 68 20 10 0.89 0.55 0.55 Product Dimensions SRN4018TA-101M 100 20 8 1.38 0.45 0.45 4.0 0.2 SRN4018TA-151M 150 20 5 1.97 0.35 0.35 (.157 .008) SRN4018TA-221M 220 20 5 3 0.3 0.3 4.0 0.2 Preheating Soldering Natural Cooling (.157 .008) T (260 C, 10 Sec. Max.) P t (245 C, 20~40 Sec.) p 1.6 1.2 REF. (.063) (.047) REF. 217 C 200 C 60~150 Sec. 150C 1.2 60~180 (.047) Sec. REF. 480 Sec. Max. 25 Time (Seconds) 1.8 (.071) MAX. Electrical Schematic How to Order Recommended Layout SRN4018TA - 100M 4.2 Model (.165) Value Code (see table) 4.2 WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov (.165) * RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. **Bourns considers a product to be halogen free if (a) the Bromine (Br) content is 900 ppm or less (b) the Chlorine (Cl) content is 900 ppm or less and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. Specications are subject to change without notice. Users should verify actual device performance in their specic applications. The products described herein and this document are subject to specic legal disclaimers as set forth on 1.4 MM the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf DIMENSIONS: (.055) (INCHES) *RoHS COMPLIANT & AEC APPROVED Temperature (C) SRF0504 Series - Line Filter SRN4018TA Series - Semi-shielded Power Inductors Inductance vs. Current SRN4018TA-1R5M SRN4018TA-1R0M SRN4018TA-1R2M 2.8 2.0 2.0 2.1 1.5 1.5 1.4 1.0 1.0 0.7 0.5 0.5 0 0 0 0 0 0 12 3 4 12 3 4 5 12 3 4 DC Current(A) DC Current(A) DC Current(A) SRN4018TA-2R2M SRN4018TA-3R3M SRN4018TA-4R7M 4 6.0 8 3 4.5 6 2 3.0 4 1 1.5 2 0 0 0 0 0.8 1.6 2.4 3.2 0 0.7 1.4 2.1 2.8 0 0.5 1.0 1.5 2.0 DC Current(A) DC Current(A) DC Current(A) SRN4018TA-6R8M SRN4018TA-100M SRN4018TA-150M 12 20 28 21 9 15 14 6 10 7 3 5 0 0 0 0 0 0 0.3 0.6 0.9 1.2 0.5 1.0 1.5 2.0 0.5 1.0 1.5 2.0 DC Current(A) DC Current(A) DC Current(A) SRN4018TA-220M SRN4018TA-330M SRN4018TA-470M 40 60 80 30 45 60 20 30 40 10 15 20 0 0 0 0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 0 0.2 0.4 0.6 0.8 DC Current(A) DC Current(A) DC Current(A) Specications are subject to change without notice. Users should verify actual device performance in their specic applications. The products described herein and in this document are subject to specic legal disclaimers set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. Inductance (H) Inductance (H) Inductance (H) Inductance ( H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance ( H)