Part Number CD4021BK having (CAGE Code 54590) and FSC 5962 Microcircuits Electronic in stock with ready to ship. Get an instant quote for CD4021BK Microcircuit Linear by Rca Corp Distributor And Special. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.