EATON HCM1A1305-R47-R INDUCTOR, AEC-Q200, 0.47UH, 33A, 20% Matthews B387485 there is no electronic communication

there is no electronic communication from the lens to the camera when using this adapter

For Sigma 20mm f/1

with contour

Optional Cable for Wired Operation

EATON HCM1A1305-R47-R INDUCTOR, AEC-Q200, 0.47UH, 33A, 20% Matthews B387485 there is no electronic communicationThis is a INDUCTOR, AEC Q200, 0. 47UH, 33A, 20% product from EATON with the model number HCM1A1305 R47 RProduct details Power Inductor Case 13. 3mm x 12. 2mm x 5mm DC Resistance Max 920ohm Saturation Current (Isat) 36A Packaging Cut Tape Inductance Tolerance 20% Product Range HCM1A1305 Series RMS Current (Irms) 33A Inductance 470nH Inductor Construction Shielded Other details Brand EATON Part Number HCM1A1305 R47 R Quantity Each (Supplied on Cut Tape)