| Nr. | Nom de partie | Description | Fabricant |
| 551 | OP501SLA | Phototransistor NPN de silicium. | Optek Technology |
| 552 | OP501SLB | Phototransistor NPN de silicium. | Optek Technology |
| 553 | OP501SLC | Phototransistor NPN de silicium. | Optek Technology |
| 554 | OP501SLD | Phototransistor NPN de silicium. | Optek Technology |
| 555 | OP501SR | Infrarouge choisi phototransistor NPN au silicium. | Optek Technology |
| 556 | OP501SRA | Infrarouge choisi phototransistor NPN au silicium. | Optek Technology |
| 557 | OP501SRB | Infrarouge choisi phototransistor NPN au silicium. | Optek Technology |
| 558 | OP501SRC | Infrarouge choisi phototransistor NPN au silicium. | Optek Technology |
| 559 | OP501SRD | Infrarouge choisi phototransistor NPN au silicium. | Optek Technology |
| 560 | OP505A | Phototransistors Choisis Infrarouges De Silicium de NPN | Optek Technology |
| 561 | OP505A | Phototransistors Choisis Infrarouges De Silicium de NPN | Optek Technology |
| 562 | OP505B | Phototransistors Choisis Infrarouges De Silicium de NPN | Optek Technology |
| 563 | OP505B | Phototransistors Choisis Infrarouges De Silicium de NPN | Optek Technology |
| 564 | OP505C | Phototransistors Choisis Infrarouges De Silicium de NPN | Optek Technology |
| 565 | OP505C | Phototransistors Choisis Infrarouges De Silicium de NPN | Optek Technology |
| 566 | OP505D | Phototransistors Choisis Infrarouges De Silicium de NPN | Optek Technology |
| 567 | OP505D | Phototransistors Choisis Infrarouges De Silicium de NPN | Optek Technology |
| 568 | OP505W | PHOTOTRANSISTOR DE SILICIUM DE NPN | Optek Technology |
| 569 | OP505W | PHOTOTRANSISTOR DE SILICIUM DE NPN | Optek Technology |
| 570 | OP506A | PHOTOTRANSISTORS DE SILICIUM DE NPN | Optek Technology |
| 571 | OP506A | PHOTOTRANSISTORS DE SILICIUM DE NPN | Optek Technology |
| 572 | OP506B | PHOTOTRANSISTORS DE SILICIUM DE NPN | Optek Technology |
| 573 | OP506B | PHOTOTRANSISTORS DE SILICIUM DE NPN | Optek Technology |
| 574 | OP506C | PHOTOTRANSISTORS DE SILICIUM DE NPN | Optek Technology |
| 575 | OP506C | PHOTOTRANSISTORS DE SILICIUM DE NPN | Optek Technology |
| 576 | OP506D | PHOTOTRANSISTORS DE SILICIUM DE NPN | Optek Technology |
| 577 | OP506D | PHOTOTRANSISTORS DE SILICIUM DE NPN | Optek Technology |
| 578 | OP506W | Phototransistor NPN de silicium | Optek Technology |
| 579 | OP508FA | Phototransistor NPN de silicium. | Optek Technology |
| 580 | OP508FB | Phototransistor NPN de silicium. | Optek Technology |
| 581 | OP508FC | Phototransistor NPN de silicium. | Optek Technology |
| 582 | OP509 | Phototransistor NPN de silicium. | Optek Technology |
| 583 | OP509A | Phototransistor NPN de silicium | Optek Technology |
| 584 | OP509B | Phototransistor NPN de silicium | Optek Technology |
| 585 | OP509C | Phototransistor NPN de silicium | Optek Technology |
| 586 | OP509SLC | Phototransistor NPN de silicium. | Optek Technology |
| 587 | OP509SLD | Phototransistor NPN de silicium. | Optek Technology |
| 588 | OP530 | Photodarlington NPN de silicium. | Optek Technology |
| 589 | OP535A | Phototransistor NPN de silicium | Optek Technology |
| 590 | OP535B | Phototransistor NPN de silicium | Optek Technology |
| 591 | OP535C | Phototransistor NPN de silicium | Optek Technology |
| 592 | OP538 | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
| 593 | OP538 | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
| 594 | OP538F | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
| 595 | OP538F | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
| 596 | OP538FA | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
| 597 | OP538FA | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
| 598 | OP538FB | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
| 599 | OP538FB | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
| 600 | OP538FC | SILICIUM PHOTODARLINGTON DE NPN | Optek Technology |
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