Micro/high precision/miniature coil with the leading wire/with pin/with ferrite Rod/with bobbin etc Type:/micro miniature coil Copper Wire Diameter: available wire copper size 0.0112-0.026MM(support customized) Coil Diameter:1 2.3MM(support customized) Coil Turns:20000TS( Support customized) Coil Shape:tube/oval/rectuangle/ roud( support customized) Bobbin:Ferrite Rod/Magnet etc Customized Inductance:300 500mh Support Customized Cost: USD 0.1-1.5/pcs With volume 10,0000 monthly. ChengPin Technology can using 0.0119mm wire diameter to manufacture 1-3mm mirco acoustic inductors Customized all size,shapes,inductance/resistance based on your requirements.