| 187721 | A500LS | SILICON RECTIFIER | Powerex Power Semiconductors |
| 187722 | A500LT | SILICON RECTIFIER | Powerex Power Semiconductors |
| 187723 | A500PM | SILICON RECTIFIER | Powerex Power Semiconductors |
| 187724 | A500PN | SILICON RECTIFIER | Powerex Power Semiconductors |
| 187725 | A500PS | SILICON RECTIFIER | Powerex Power Semiconductors |
| 187726 | A500PT | SILICON RECTIFIER | Powerex Power Semiconductors |
| 187727 | A5016 | Standby current for RS-422 repeater is less than3A | MAXIM - Dallas Semiconductor |
| 187728 | A502GE | Ring modulator | SESCOSEM |
| 187729 | A5030A | solid state crowbar devices | Teccor Electronics |
| 187730 | A5030AA3 | 400 V, balanced three-chip sidactor device | Teccor Electronics |
| 187731 | A5030AB3 | 400 V, balanced three-chip sidactor device | Teccor Electronics |
| 187732 | A5030AC3 | 400 V, balanced three-chip sidactor device | Teccor Electronics |
| 187733 | A5030U | solid state crowbar devices | Teccor Electronics |
| 187734 | A5030UA3 | 400 V, balanced three-chip sidactor device | Teccor Electronics |
| 187735 | A5030UA6 | 400 V, multiport balanced sidactor device | Teccor Electronics |
| 187736 | A5030UB3 | 400 V, balanced three-chip sidactor device | Teccor Electronics |
| 187737 | A5030UB6 | 400 V, multiport balanced sidactor device | Teccor Electronics |
| 187738 | A5030UC3 | 400 V, balanced three-chip sidactor device | Teccor Electronics |
| 187739 | A5030UC6 | 400 V, multiport balanced sidactor device | Teccor Electronics |
|
| 187740 | A5030Z | solid state crowbar devices | Teccor Electronics |
| 187741 | A503GE | Ring modulator | SESCOSEM |
| 187742 | A504GE | Ring modulator | SESCOSEM |
| 187743 | A5074 | Housings, Power and Signal Cables, Connector Adapters | Hamamatsu Corporation |
| 187744 | A510 | Analog Switch IC | etc |
| 187745 | A513 | 10 TO 500 MHz TO-8 CASCADABLE AMPLIFIER | Tyco Electronics |
| 187746 | A5191HRT | HART Modem | ON Semiconductor |
| 187747 | A5219 | Supervisor IC indicates fan failure | MAXIM - Dallas Semiconductor |
| 187748 | A531 | 10 TO 500 MHz CASCADABLE AMPLIFIER | Tyco Electronics |
| 187749 | A5347 | Ionization-Type Smoke Detector with Interconnect and Timer | Allegro MicroSystems |
| 187750 | A5347CA | Ionization-Type Smoke Detector with Interconnect and Timer | Allegro MicroSystems |
| 187751 | A5348 | Ionization-Type Smoke Detector with Interconnect, Timer, Reverse-Battery Protection | Allegro MicroSystems |
| 187752 | A5348CA | Ionization-Type Smoke Detector with Interconnect, Timer, Reverse-Battery Protection | Allegro MicroSystems |
| 187753 | A5349 | Ionization-Type AC Smoke Detector with Interconnect and Timer | Allegro MicroSystems |
| 187754 | A5349CA | Ionization-Type AC Smoke Detector with Interconnect and Timer | Allegro MicroSystems |
| 187755 | A5350 | Ionization-Type Smoke Detector with Interconnect | Allegro MicroSystems |
| 187756 | A5350CA | Ionization-Type Smoke Detector with Interconnect | Allegro MicroSystems |
| 187757 | A5354CA | SMOKE DETECTOR WITH INTERCONNECT | Allegro MicroSystems |
| 187758 | A5355CA | SMOKE DETECTOR WITH INTERCONNECT | Allegro MicroSystems |
| 187759 | A5358 | Photoelectric Smoke Detector with Interconnect and Timer | Allegro MicroSystems |
| 187760 | A5358CA | Photoelectric Smoke Detector with Interconnect and Timer | Allegro MicroSystems |
