| PartNumber | HCPL-6551 | HCPL-6550 | HCPL-655K |
| Description | High Speed Optocouplers 4Ch 9MHz 1500Vdc Hermetically sealed | High Speed Optocouplers 4Ch 9MHz 1500Vdc Hermetically sealed | High Speed Optocouplers 4Ch 9MHz 1500Vdc Hermetically sealed |
| Manufacturer | Broadcom Limited | Broadcom Limited | Broadcom Limited |
| Product Category | High Speed Optocouplers | High Speed Optocouplers | High Speed Optocouplers |
| RoHS | N | N | N |
| Package / Case | Flat-Pack 16 | Flat-Pack 16 | Flat-Pack 16 |
| Data Rate | 400 kb/s | 400 kb/s | 400 kb/s |
| Number of Channels | 4 Channel | 4 Channel | 4 Channel |
| Output Type | Phototransistor | Phototransistor | Phototransistor |
| Vf Forward Voltage | 1.55 V | 1.55 V | 1.55 V |
| If Forward Current | 20 mA | 20 mA | 20 mA |
| Pd Power Dissipation | 200 mW | 200 mW | 200 mW |
| Current Transfer Ratio | 20 % | 20 % | 20 % |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Series | HCPL-6 | HCPL-6 | HCPL-6 |
| Height | 2.85 mm | 2.85 mm | 2.85 mm |
| Length | 11.13 mm | 11.13 mm | 11.13 mm |
| Output Current | 8 mA | 8 mA | 8 mA |
| Width | 7.24 mm | 7.24 mm | 7.24 mm |
| Brand | Broadcom / Avago | Broadcom / Avago | Broadcom / Avago |
| Maximum Collector Current | 8 mA | 8 mA | 8 mA |
| Product Type | High Speed Optocouplers | High Speed Optocouplers | High Speed Optocouplers |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Optocouplers | Optocouplers | Optocouplers |