| PartNumber | HCPL2531SD | HCPL2531SDM | HCPL2531S |
| Description | High Speed Optocouplers 1Mbit/s Optocoupler 2Ch HS Transistor | High Speed Optocouplers 8-Pin DIP 1Mbit/s Output Optocoupler | High Speed Optocouplers DUAL HS PH TRAN |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | High Speed Optocouplers | High Speed Optocouplers | High Speed Optocouplers |
| RoHS | Y | Y | Y |
| Package / Case | SMD-8 | DIP-8 | MDIP-8L |
| Data Rate | 1 Mb/s | 1 Mb/s | 1 Mb/s |
| Number of Channels | 2 Channel | 2 Channel | 2 Channel |
| Output Type | Phototransistor | Photodarlington | Phototransistor |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Vf Forward Voltage | 1.45 V | 1.45 V | 1.45 V |
| If Forward Current | 16 mA | 16 mA | 16 mA |
| Vr Reverse Voltage | 5 V | 5 V | 5 V |
| Pd Power Dissipation | 100 mW | 100 mW | 100 mW |
| Current Transfer Ratio | 27 % | 27 % | 27 % |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 100 C | + 100 C | + 100 C |
| Series | HCPL2531 | HCPL2531M | HCPL2531 |
| Packaging | Reel | Reel | Bulk |
| Height | 5.08 mm | - | 5.08 mm |
| Length | 9.91 mm | - | 9.91 mm |
| Output Current | 8 mA | 8 mA | 8 mA |
| Width | 6.86 mm | - | 6.86 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Fall Time | 0.8 us | - | 0.8 us |
| Maximum Collector Current | 8 mA | - | 8 mA |
| Product Type | High Speed Optocouplers | High Speed Optocouplers | High Speed Optocouplers |
| Rise Time | 0.8 us | - | 0.8 us |
| Factory Pack Quantity | 1000 | 1000 | 1000 |
| Subcategory | Optocouplers | Optocouplers | Optocouplers |
| Unit Weight | 0.027937 oz | 0.025397 oz | 0.027937 oz |
| Part # Aliases | - | - | HCPL2531S_NL |