Document 573 Power Choke – L0451-AL For ON Semiconductor MC33163 & MC34163 The L0451-AL is specified by ON Semiconductor for use with their MC33163 and MC34163 power switching regulators. This choke features a 10% inductance tolerance and 100 Vrms isolation from winding to core. Request free evaluation samples by contacting Coilcraft or visiting www.coilcraft.com. Core material Ferrite Terminations RoHS tin-silver over copper Weight 49 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. Tray packaging: –40°C to +80°C Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 49 parts per tray PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf InductanceDCR SRF ±10%1max typ2 Isat3 Irms4 Part number (µH) (Ohms) (MHz) (A) (A) L0451-AL 180 0.052 3.2 14 7 1. Inductance measured at 1 kHz, 0.1 Vrms, 0 Adc using an Agilent/ HP 4192A impedance analyzer. 2. SRF measured on an Agilent/HP 8753D network analyzer. 3. DC current at which the inductance drops 10% (typ) from its value without current. 4. Current that causes a 40°C rise from 25°C ambient. 5. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 1.10 27,94 1.00 25,4 0.0482 1,22 0.22/0.28 5,6/7,1 0.70 18,78 Recommended Board Layout 0.70 18,78 Dimensions are in US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] 0.081 2,07 inches mm Document 573 Revised 08/29/06 © Coilcraft Inc. 2014 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.