| 1264721 | OP506A | NPN SILICON PHOTOTRANSISTORS | Optek Technology |
| 1264722 | OP506B | NPN SILICON PHOTOTRANSISTORS | Optek Technology |
| 1264723 | OP506C | NPN SILICON PHOTOTRANSISTORS | Optek Technology |
| 1264724 | OP506D | NPN SILICON PHOTOTRANSISTORS | Optek Technology |
| 1264725 | OP506W | NPN silicon phototransistor | Optek Technology |
| 1264726 | OP508FA | NPN silicon phototransistor. | Optek Technology |
| 1264727 | OP508FB | NPN silicon phototransistor. | Optek Technology |
| 1264728 | OP508FC | NPN silicon phototransistor. | Optek Technology |
| 1264729 | OP509 | NPN silicon phototransistor. | Optek Technology |
| 1264730 | OP509A | NPN silicon phototransistor | Optek Technology |
| 1264731 | OP509B | NPN silicon phototransistor | Optek Technology |
| 1264732 | OP509C | NPN silicon phototransistor | Optek Technology |
| 1264733 | OP509SLC | NPN silicon phototransistor. | Optek Technology |
| 1264734 | OP509SLD | NPN silicon phototransistor. | Optek Technology |
| 1264735 | OP530 | NPN silicon photodarlington. | Optek Technology |
| 1264736 | OP535A | NPN silicon phototransistor | Optek Technology |
| 1264737 | OP535B | NPN silicon phototransistor | Optek Technology |
| 1264738 | OP535C | NPN silicon phototransistor | Optek Technology |
| 1264739 | OP538 | NPN SILICON PHOTODARLINGTON | Optek Technology |
|
| 1264740 | OP538F | NPN SILICON PHOTODARLINGTON | Optek Technology |
| 1264741 | OP538FA | NPN SILICON PHOTODARLINGTON | Optek Technology |
| 1264742 | OP538FB | NPN SILICON PHOTODARLINGTON | Optek Technology |
| 1264743 | OP538FC | NPN SILICON PHOTODARLINGTON | Optek Technology |
| 1264744 | OP550 | NPN silicon phototransistor. | Optek Technology |
| 1264745 | OP550A | NPN SILICON PHOTOTRANSISTORS | Optek Technology |
| 1264746 | OP550B | NPN SILICON PHOTOTRANSISTORS | Optek Technology |
| 1264747 | OP550C | NPN SILICON PHOTOTRANSISTORS | Optek Technology |
| 1264748 | OP550D | NPN SILICON PHOTOTRANSISTORS | Optek Technology |
| 1264749 | OP550SLA | NPN silicon phototransistor. | Optek Technology |
| 1264750 | OP550SLB | NPN silicon phototransistor. | Optek Technology |
| 1264751 | OP550SLC | NPN silicon phototransistor. | Optek Technology |
| 1264752 | OP550SLD | NPN silicon phototransistor. | Optek Technology |
| 1264753 | OP555A | NPN silicon phototransistor | Optek Technology |
| 1264754 | OP555C | NPN silicon phototransistor | Optek Technology |
| 1264755 | OP555D | NPN silicon phototransistor | Optek Technology |
| 1264756 | OP560A | NPN Silicon Photodarlington | Optek Technology |
| 1264757 | OP560B | NPN Silicon Photodarlington | Optek Technology |
| 1264758 | OP560C | NPN Silicon Photodarlington | Optek Technology |
| 1264759 | OP565 | NPN SILICON PHOTODARLINGTON | Optek Technology |
| 1264760 | OP565A | NPN SILICON PHOTODARLINGTON | Optek Technology |
