4300 Series www.murata-ps.com Dual Winding Toroidal Surface Mount Inductors SELECTION GUIDE Inductance Package DC DC Pad Carrier Tape Package (100kHz, SRF Dimensions 2 Order Current Resistance Dimensions Dimensions Weight 1 0.1VAC) (Max.) Code 15% Max. Max. Min. A B C D E F Typ. H A m MHz mm mm mm mm mm mm g 43212C 2.10 21 2.22 106 20.30 23.10 11.18 20.57 32.0 10.3 7.4 FEATURES 43402C 4.00 22.4 3.10 69 25.40 28.20 15.75 25.65 36.0 10.6 12.5 RoHS compliant ABSOLUTE MAXIMUM RATINGS Toroidal construction minimizes EMI Isolation voltage (ash tested for 1 second), pins 1 & 2 500VDC Compact size Operating temperature range -40C to +125C Surface mount -40C to +130C Storage temperature range UL94 V-0 package materials 3 SOLDERING INFORMATION Pick & place compatible Peak reow temperature 245C J-STD-020C reow Pin nish Pure tin dip Backward compatible with Sn/Pb 1 Moisture sensitivity level soldering systems PACKAGING INFORMATION 43212C 43402C DESCRIPTION Tape & Reel (add sufx -R to part No. e.g. 43212C-R) 180 per reel 160 per reel The 4300 series is a range of surface mount 35 per box 20 per box Box dual-winding toroidal inductors designed for use in switching power supplies and DC/DC converters. All specications typical at T =25C A These devices can also be used as common-mode 1 When connecting windings in series, inductance will be 4 times the gure shown. 2 With windings connected in parallel. Maximum DC current occurs when the temperature rise reaches 55C. chokes, as the windings have a 1:1 ratio. They 3 For further information, please visit www.murata-ps.com/rohs are ideal for applications requiring low prole compact components in a surface mount package. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support KMP 4300C C01 Page 1 of 34300 Series Dual Winding Toroidal Surface Mount Inductors INDUCTANCE Vs CURRENT 10 43402C 43212C 1 0.001 0.01 0.1 1 10 100 Current, IDC (A) TEMPERATURE Vs CURRENT 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 10 43402C 43212C 1 10 100 1000 10000 Frequency, (kHz) www.murata-ps.com/support KMP 4300C C01 Page 2 of 3 Temperature rise above ambient, t (C) Inductance, L ( H) Inductance, L ( H)