| Part Number | Distributor Inventory | Lifecycle | Package |
| 4N55 | Yes | Active | Hermetic 16 Pin DIP |
| 4N55/883B | Yes | Active | Hermetic 16 Pin DIP |
| 4N55/883B#100 | Yes | Active | Hermetic 16 Pin DIP |
| 4N55/883B#200 | Yes | Active | Hermetic 16 Pin DIP |
| 4N55/883B#300 | Yes | Active | Hermetic 16 Pin DIP |
| 4N55#100 | Yes | Active | Hermetic 16 Pin DIP |
| 4N55#200 | Yes | Active | Hermetic 16 Pin DIP |
| 4N55#300 | Yes | Active | Hermetic 16 Pin DIP |
| 5962-8767901EA | Yes | Active | Hermetic 16 Pin DIP |
| 5962-8767901EC | Yes | Active | Hermetic 16 Pin DIP |
| 5962-8767901TA | Yes | Active | Hermetic 16 Pin DIP |
| 5962-8767901UA | Yes | Active | Hermetic 16 Pin DIP |
| 5962-8767901UC | Yes | Active | Hermetic 16 Pin DIP |
| 5962-8767902PA | Yes | Active | Hermetic 8 Pin DIP |
| 5962-8767902PC | Yes | Active | Hermetic 8 Pin DIP |
| 5962-8767902XA | Yes | Active | Hermetic 8 Pin DIP |
| 5962-8767902YA | Yes | Active | Hermetic 8 Pin DIP |
| 5962-8767902YC | Yes | Active | Hermetic 8 Pin DIP |
| 5962-87679032A | Yes | Active | 20 Terminal Hermetic LCCC |
| 5962-8767905KEA | No | Active | Hermetic 16 Pin DIP |
| 5962-8767905KEC | No | Active | Hermetic 16 Pin DIP |
| 5962-8767905KTA | No | Active | Hermetic 16 Pin DIP |
| 5962-8767905KUA | No | Active | Hermetic 16 Pin DIP |
| 5962-8767905KUC | No | Active | Hermetic 16 Pin DIP |
| 5962-8767906KPA | No | Active | Hermetic 8 Pin DIP |
| 5962-8767906KPC | No | Active | Hermetic 8 Pin DIP |
| 5962-8767906KXA | No | Active | Hermetic 8 Pin DIP |
| 5962-8767906KYA | No | Active | Hermetic 8 Pin DIP |
| 5962-8767906KYC | No | Active | Hermetic 8 Pin DIP |
| 5962-8767907K2A | No | Active | 20 Terminal Hermetic LCCC |
| HCPL-257K | No | Active | Hermetic 16 Pin DIP |
| HCPL-257K#200 | No | Active | Hermetic 16 Pin DIP |
| HCPL-257K-100 | No | Active | Hermetic 16 Pin DIP |
| HCPL-257K-300 | No | Active | Hermetic 16 Pin DIP |
| HCPL-5530 | Yes | Active | Hermetic 8 Pin DIP |
| HCPL-5530#100 | Yes | Active | Hermetic 8 Pin DIP |
| HCPL-5530#200 | Yes | Active | Hermetic 8 Pin DIP |
| HCPL-5530#300 | Yes | Active | Hermetic 8 Pin DIP |
| HCPL-5531 | Yes | Active | Hermetic 8 Pin DIP |
| HCPL-5531#100 | Yes | Active | Hermetic 8 Pin DIP |
| HCPL-5531#200 | Yes | Active | Hermetic 8 Pin DIP |
| HCPL-5531#300 | Yes | Active | Hermetic 8 Pin DIP |
| HCPL-553K | No | Active | Hermetic 8 Pin DIP |
| HCPL-553K#200 | No | Active | Hermetic 8 Pin DIP |
| HCPL-553K#300 | No | Active | Hermetic 8 Pin DIP |
| HCPL-553K-100 | No | Active | Hermetic 8 Pin DIP |
| HCPL-6530 | Yes | Active | 20 Terminal Hermetic LCCC |
| HCPL-6531 | Yes | Active | 20 Terminal Hermetic LCCC |
| HCPL-653K | No | Active | 20 Terminal Hermetic LCCC |
