| PartNumber | FODM121B | FODM121BR1V | FODM121BR1 |
| Description | Transistor Output Optocouplers Full pitch MFP PhotoTrans Ouput | Transistor Output Optocouplers Phototrans Ouput MFP Input | OPTOISO 3.75KV TRANSISTOR 4SMD |
| Manufacturer | ON Semiconductor | ON Semiconductor | - |
| Product Category | Transistor Output Optocouplers | Transistor Output Optocouplers | - |
| RoHS | Y | Y | - |
| Package / Case | SMD-4 | SMD-4 | - |
| Output Type | NPN Phototransistor | NPN Phototransistor | - |
| Number of Channels | 1 Channel | 1 Channel | - |
| If Forward Current | 50 mA | 50 mA | - |
| Maximum Collector Emitter Voltage | 80 V | 80 V | - |
| Maximum Collector Current | 80 mA | 80 mA | - |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | - |
| Maximum Collector Emitter Saturation Voltage | 0.4 V | 0.4 V | - |
| Vf Forward Voltage | 1.3 V | 1.3 V | - |
| Vr Reverse Voltage | 6 V | 6 V | - |
| Pd Power Dissipation | 150 mW | 150 mW | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 100 C | + 100 C | - |
| Series | FODM121 | FODM121 | - |
| Packaging | Tube | Reel | - |
| Configuration | 1 Channel | 1 Channel | - |
| Height | 2 mm | 2 mm | - |
| Length | 3.85 mm | 3.85 mm | - |
| Width | 4.4 mm | 4.4 mm | - |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | - |
| Current Transfer Ratio | 150 % | 150 % | - |
| Product Type | Transistor Output Optocouplers | Transistor Output Optocouplers | - |
| Factory Pack Quantity | 3000 | 1000 | - |
| Subcategory | Optocouplers | Optocouplers | - |
| Unit Weight | 0.005467 oz | - | - |