4300 Series Dual Winding Toroidal Surface Mount Inductors SELECTION GUIDE Order Code 43212C 43402C FEATURES Inductance DC DC (100kHz, Current2 Resistance 0.1VAC)1 ±15% Max. Max. μH A mΩ 2.10 4.00 21 22.4 2.22 3.10 Min. MHz Package Dimensions (Max.) A B mm mm E mm F mm Typ. g 106 69 20.30 23.10 11.18 20.57 32.0 25.40 28.20 15.75 25.65 36.0 10.3 10.6 7.4 12.5 SRF Pad Dimensions Carrier Tape Package Dimensions Weight C mm D mm ABSOLUTE MAXIMUM RATINGS RoHS compliant Isolation voltage (flash tested for 1 second), pins 1 & 2 Toroidal construction minimizes EMI 500VDC Operating temperature range -40°C to +125°C Compact size Storage temperature range -40°C to +130°C Surface mount UL94 V-0 package materials SOLDERING INFORMATION3 Peak reflow temperature 245°C Pick & place compatible Pin finish Pure tin dip J-STD-020C reflow Moisture sensitivity level 1 Backward compatible with Sn/Pb soldering systems PACKAGING INFORMATION DESCRIPTION The 4300 series is a range of surface mount dual-winding toroidal inductors designed for use in switching power supplies and DC/DC converters. These devices can also be used as common-mode chokes, as the windings have a 1:1 ratio. They are ideal for applications requiring low profile compact components in a surface mount package. 43212C 43402C Tape & Reel (add suffix -R to part No. e.g. 43212C-R) 180 per reel 160 per reel Box 35 per box 20 per box All specifications typical at TA=25°C 1 When connecting windings in series, inductance will be 4 times the figure shown. 2 With windings connected in parallel. Maximum DC current occurs when the temperature rise reaches 55°C. 3 For further information, please visit www.murata-ps.com/rohs For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KMP_4300C_A01 Page 1 of 3 4300 Series Dual Winding Toroidal Surface Mount Inductors INDUCTANCE Vs CURRENT Inductance, L (μH) 10 43402C 43212C 1 0.001 0.01 0.1 1 10 100 Current, IDC (A) TEMPERATURE Vs CURRENT Temperature rise above ambient, t (ºC) 60 43402C 50 43212C 40 30 20 10 0 0 2 4 6 8 10 12 14 16 18 20 Current, IDC (A) INDUCTANCE Vs FREQUENCY Inductance, L (μH) 10 43402C 43212C 1 10 100 1000 10000 Frequency, (kHz) www.murata-ps.com Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KMP_4300C_A01 Page 2 of 3 4300 Series Dual Winding Toroidal Surface Mount Inductors PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DETAILS See Selection Guide for dimensions. See Selection Guide for dimensions. 2.03 (0.080) B C 1 4 43212C A 7.6 (0.30) XYYWW 2 D 3 All dimensions in mm (inches). 9.91 (0.39) Max. SCHEMATIC 2 4 1 3 TAPE & REEL SPECIFICATIONS TAPE OUTLINE DIMENSIONS See Selection Guide for dimensions. 4.0 (0.157) 44 (1.73) E F 43212C XYYWW All dimensions in mm (inches). See Selection Guide for package quantities. USA: Mansfield (MA), Tel: (800) 233 2765, email: [email protected] Canada: Toronto, Tel: (866) 740 1232, email: [email protected] Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: [email protected] ISO 9001 REGISTERED Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2008 Murata Power Solutions, Inc. www.murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] Website: www.murata-ps.jp China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] Technical enquiries - email: [email protected], tel: +44 (0)1908 615232 KMP_4300C_A01 Page 3 of 3