| 型号 | 厂商 | 描述 |
| sp488ct-l/tr | Exar Corporation | IC RCVR RS485/RS422 QUAD 16SOIC |
| sp488et-l | Exar Corporation | IC RCVR RS485/RS422 QUAD 16SOIC |
| sp488et-l/tr | Exar Corporation | IC RCVR RS485/RS422 QUAD 16SOIC |
| sp-49 | Triad Magnetics | TRANS 300/600 OHM IMPEDNCE AUDIO |
| sp490cn-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490cn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490cn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490cn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490cs-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8DIP |
| sp490ecn-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490ecn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490ecn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490ecn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490ecp-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8PDIP |
| sp490een-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490een-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490een-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490een-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490eep-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8PDIP |
| sp490en-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490en-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8NSOIC |
| sp490es-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 8PDIP |
| sp491cn-l | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491cn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491cs-l | Exar Corporation | IC TXRX RS485 FULL DUPLX 14PDIP |
| sp491ecn-l | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491ecn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491ecn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491ecn-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491ecp-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 14PDIP |
| sp491een-l | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491een-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491een-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491een-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491eep-l | Exar Corporation | IC TXRX RS485 FULL DUPLX 14PDIP |
| sp491en-l | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491en-l/tr | Exar Corporation | IC TXRX RS485 FULL DUPLX 14NSOIC |
| sp491es-l | Exar Corporation | IC TXRX RS485 FULL DUPLEX 14PDIP |
| sp4-dc110v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 110V |
| sp4-dc12v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 12V |
| sp4-dc24v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 24V |
| sp4-dc32v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 32V |
| sp4-dc48v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 48V |
| sp4-dc5v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 5V |
| sp4-dc6v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 6V |
| sp4-l2-dc12v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 12V |
| sp4-l2-dc24v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 24V |
| sp4-l2-dc3v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 3V |
| sp4-l2-dc48v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 48V |
| sp4-l2-dc5v | Panasonic Electric Works | RELAY GEN PURPOSE 4PDT 10A 5V |