| Nr. | Nome della parte | Descrizione | Fabbricatore |
| 501 | 1N459_T50R | Diodo Basso Di Perdita Di Alta Conduttanza | Fairchild Semiconductor |
| 502 | 1N461A | General purpose ad alta conduttanza del diodo. Lavorare inversa 25V di tensione. | Fairchild Semiconductor |
| 503 | 1N462A | General purpose ad alta conduttanza del diodo. Lavorare inversa 60V di tensione. | Fairchild Semiconductor |
| 504 | 1N463A | General purpose ad alta conduttanza del diodo. Lavorare inversa 175V di tensione. | Fairchild Semiconductor |
| 505 | 1N4728 | 1 W di silicio diodo zener. Tensione Zener nominale 3.3 V. | Fairchild Semiconductor |
| 506 | 1N4728-4752 | Un Watt Zeners | Fairchild Semiconductor |
| 507 | 1N4728A | Zeners | Fairchild Semiconductor |
| 508 | 1N4728ATR | 3.3V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 509 | 1N4728A_T50A | 3.3V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 510 | 1N4728A_T50R | 3.3V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 511 | 1N4729 | 1 W di silicio diodo zener. Tensione Zener nominale 3.6 V. | Fairchild Semiconductor |
| 512 | 1N4729A | Zeners | Fairchild Semiconductor |
| 513 | 1N4729ATR | 3.6V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 514 | 1N4729A_T50A | 3.6V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 515 | 1N4729A_T50R | 3.6V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 516 | 1N4730 | 1 W di silicio diodo zener. Tensione Zener nominale di 3,9 V. | Fairchild Semiconductor |
| 517 | 1N4730A | Zeners | Fairchild Semiconductor |
| 518 | 1N4730ATR | 3.9V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 519 | 1N4730A_T50A | 3.9V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 520 | 1N4730A_T50R | 3.9V, Diodo Zener Del 1W | Fairchild Semiconductor |
| 521 | 1N4731 | 1 W di silicio diodo zener. Tensione Zener nominale 4.3 V. | Fairchild Semiconductor |
| 522 | 1N4731A | Zeners | Fairchild Semiconductor |
| 523 | 1N4731ATR | Diodo Zener Del 1W 4.3V, | Fairchild Semiconductor |
| 524 | 1N4731A_T50A | Diodo Zener Del 1W 4.3V, | Fairchild Semiconductor |
| 525 | 1N4731A_T50R | Diodo Zener Del 1W 4.3V, | Fairchild Semiconductor |
| 526 | 1N4732 | 1 W di silicio diodo zener. Tensione Zener nominale 4.7 V. | Fairchild Semiconductor |
| 527 | 1N4732A | Zeners | Fairchild Semiconductor |
| 528 | 1N4732ATR | 4.7V, 1W Zener Diode | Fairchild Semiconductor |
| 529 | 1N4732A_T50A | 4.7V, 1W Zener Diode | Fairchild Semiconductor |
| 530 | 1N4732A_T50R | 4.7V, 1W Zener Diode | Fairchild Semiconductor |
| 531 | 1N4733 | 1 W di silicio diodo zener. Tensione Zener nominale 5.1 V. | Fairchild Semiconductor |
| 532 | 1N4733A | Zeners | Fairchild Semiconductor |
| 533 | 1N4733ATR | 5.1V, 1W Zener Diode | Fairchild Semiconductor |
| 534 | 1N4733A_T50A | 5.1V, 1W Zener Diode | Fairchild Semiconductor |
| 535 | 1N4733A_T50R | 5.1V, 1W Zener Diode | Fairchild Semiconductor |
| 536 | 1N4734 | 1 W di silicio diodo zener. Tensione Zener nominale 5,6 V. | Fairchild Semiconductor |
| 537 | 1N4734A | Zeners | Fairchild Semiconductor |
| 538 | 1N4734ATR | 5.6V, 1W Zener Diode | Fairchild Semiconductor |
| 539 | 1N4734A_T50A | 5.6V, 1W Zener Diode | Fairchild Semiconductor |
| 540 | 1N4734A_T50R | 5.6V, 1W Zener Diode | Fairchild Semiconductor |
| 541 | 1N4735 | 1 W di silicio diodo zener. Tensione Zener nominale 6.2 V. | Fairchild Semiconductor |
| 542 | 1N4735A | Zeners | Fairchild Semiconductor |
| 543 | 1N4735ATR | 6.2V, 1W Zener Diode | Fairchild Semiconductor |
| 544 | 1N4735A_T50A | 6.2V, 1W Zener Diode | Fairchild Semiconductor |
| 545 | 1N4735A_T50R | 6.2V, 1W Zener Diode | Fairchild Semiconductor |
| 546 | 1N4736 | 1 W di silicio diodo zener. Tensione Zener nominale 6,8 V. | Fairchild Semiconductor |
| 547 | 1N4736A | Zeners | Fairchild Semiconductor |
| 548 | 1N4736AT | 6.8V, 1W Zener Diode | Fairchild Semiconductor |
| 549 | 1N4736ATR | 6.8V, 1W Zener Diode | Fairchild Semiconductor |
| 550 | 1N4736A_T50A | 6.8V, 1W Zener Diode | Fairchild Semiconductor |
| 551 | 1N4736A_T50R | 6.8V, 1W Zener Diode | Fairchild Semiconductor |
| 552 | 1N4737 | 1 W di silicio diodo zener. Tensione Zener nominale 7,5 V. | Fairchild Semiconductor |
| 553 | 1N4737A | Zeners | Fairchild Semiconductor |
| 554 | 1N4737ATR | 7.5V, 1W Zener Diode | Fairchild Semiconductor |
| 555 | 1N4737A_T50A | 7.5V, 1W Zener Diode | Fairchild Semiconductor |
| 556 | 1N4737A_T50R | 7.5V, 1W Zener Diode | Fairchild Semiconductor |
| 557 | 1N4738 | 1 W di silicio diodo zener. Tensione Zener nominale 8.2 V. | Fairchild Semiconductor |
| 558 | 1N4738A | Zeners | Fairchild Semiconductor |
| 559 | 1N4738ATR | 8.2V, 1W Zener Diode | Fairchild Semiconductor |
| 560 | 1N4738A_T50A | 8.2V, 1W Zener Diode | Fairchild Semiconductor |
| 561 | 1N4738A_T50R | 8.2V, 1W Zener Diode | Fairchild Semiconductor |
| 562 | 1N4739 | 1 W di silicio diodo zener. Tensione Zener nominale 9.1 V. | Fairchild Semiconductor |
| 563 | 1N4739A | Zeners | Fairchild Semiconductor |
| 564 | 1N4739ATR | 9.1V, 1W Zener Diode | Fairchild Semiconductor |
| 565 | 1N4739A_T50A | 9.1V, 1W Zener Diode | Fairchild Semiconductor |
| 566 | 1N4739A_T50R | 9.1V, 1W Zener Diode | Fairchild Semiconductor |
| 567 | 1N4740 | 1 W di silicio diodo zener. Tensione Zener nominale 10,0 V. | Fairchild Semiconductor |
| 568 | 1N4740A | Zeners | Fairchild Semiconductor |
| 569 | 1N4740ATR | 10V, 1W Zener Diode | Fairchild Semiconductor |
| 570 | 1N4740A_T50A | 10V, 1W Zener Diode | Fairchild Semiconductor |
| 571 | 1N4740A_T50R | 10V, 1W Zener Diode | Fairchild Semiconductor |
| 572 | 1N4741 | 1 W di silicio diodo zener. Tensione Zener nominale 11,0 V. | Fairchild Semiconductor |
| 573 | 1N4741A | Zeners | Fairchild Semiconductor |
| 574 | 1N4741ATR | 11V, 1W Zener Diode | Fairchild Semiconductor |
| 575 | 1N4741A_T50A | 11V, 1W Zener Diode | Fairchild Semiconductor |
| 576 | 1N4741A_T50R | 11V, 1W Zener Diode | Fairchild Semiconductor |
| 577 | 1N4742 | 1 W di silicio diodo zener. Tensione Zener nominale 12,0 V. | Fairchild Semiconductor |
| 578 | 1N4742A | Zeners | Fairchild Semiconductor |
