| PartNumber | FODM121AR2 | FODM121A | FODM121AR1V |
| Description | Transistor Output Optocouplers Phototrans Ouput MFP Input | Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput | Transistor Output Optocouplers Phototrans Ouput MFP Input |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Transistor Output Optocouplers | Transistor Output Optocouplers | Transistor Output Optocouplers |
| RoHS | Y | Y | Y |
| Package / Case | SMD-4 | SMD-4 | SMD-4 |
| Output Type | NPN Phototransistor | NPN Phototransistor | NPN Phototransistor |
| Number of Channels | 1 Channel | 1 Channel | 1 Channel |
| If Forward Current | 50 mA | 50 mA | 50 mA |
| Maximum Collector Emitter Voltage | 80 V | 80 V | 80 V |
| Maximum Collector Current | 80 mA | 80 mA | 80 mA |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms |
| Maximum Collector Emitter Saturation Voltage | 0.4 V | 0.4 V | 0.4 V |
| Vf Forward Voltage | 1.3 V | 1.3 V | 1.3 V |
| Vr Reverse Voltage | 6 V | 6 V | 6 V |
| Pd Power Dissipation | 150 mW | 150 mW | 150 mW |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 110 C | + 100 C | + 100 C |
| Series | FODM121 | FODM121 | FODM121 |
| Packaging | Reel | Tube | Reel |
| Configuration | 1 Channel | 1 Channel | 1 Channel |
| Height | 2 mm | 2 mm | 2 mm |
| Length | 3.85 mm | 3.85 mm | 3.85 mm |
| Width | 4.4 mm | 4.4 mm | 4.4 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Current Transfer Ratio | 300 % | 300 % | 300 % |
| Product Type | Transistor Output Optocouplers | Transistor Output Optocouplers | Transistor Output Optocouplers |
| Factory Pack Quantity | 2500 | 3000 | 1000 |
| Subcategory | Optocouplers | Optocouplers | Optocouplers |
| Unit Weight | 0.005467 oz | 0.005467 oz | - |