10PCS new original spot CT521-1GB (SL) (T1) SOP - 4 phototransistor output photoelectric coupler chipHIGH SPEED SILICON
USD 0.99USD 1.00
10PCS new original spot CT521-1GB (SL) (T1) SOP - 4 phototransistor output photoelectric coupler chipHIGH SPEED SILICON