PDU54-500 4-BIT, ECL-INTERFACED PROGRAMMABLE DELAY LINE (SERIES PDU54)
PDU54-500C4 4-BIT, ECL-INTERFACED PROGRAMMABLE DELAY LINE (SERIES PDU54)
PDU54-500M 4-BIT, ECL-INTERFACED PROGRAMMABLE DELAY LINE (SERIES PDU54)
PDU54-500MC4 4-BIT, ECL-INTERFACED PROGRAMMABLE DELAY LINE (SERIES PDU54)