Part Number HFBR-4503 Opto Emitters Transmitter Receiver And Transceiver Ics in stock with ready to ship. Get an instant quote for Avago Technologies part number HFBR-4503 by filling form below with your desired order quantity, targeted price and the expected order-fulfilment date. Get instant quote for HFBR-4503. Our dedicated account manager will get back to you within 15 minutes.