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| PartNumber | FOD420 | FOD4208S | FOD4208 |
| Description | Triac & SCR Output Optocouplers 600V RANDOM PHASE TRIAC | Triac & SCR Output Optocouplers Random Phase Triac Snubberless | Triac & SCR Output Optocouplers 800V RANDOM PHASE TRIAC |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Triac & SCR Output Optocouplers | Triac & SCR Output Optocouplers | Triac & SCR Output Optocouplers |
| RoHS | Y | Y | Y |
| Package / Case | PDIP-6 | SMD-DIP-6 | PDIP-6 |
| Zero Crossing Circuit | Without Zero-Crossing Circuit | Without Zero-Crossing Circuit | Without Zero-Crossing Circuit |
| Output Type | PhotoTriac | PhotoTriac | PhotoTriac |
| Number of Channels | 1 Channel | 1 Channel | 1 Channel |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | 5000 Vrms |
| If Forward Current | 30 mA | 30 mA | 30 mA |
| Vf Forward Voltage | 1.28 V | 1.28 V | 1.28 V |
| Pd Power Dissipation | 500 mW (1/2 W) | 500 mW (1/2 W) | 500 mW (1/2 W) |
| Off state Output Voltage VDRM | 600 V | 800 V | 800 V |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 100 C | + 100 C | + 100 C |
| Series | FOD420 | FOD4208 | FOD4208 |
| Packaging | Bulk | Bulk | Bulk |
| Height | 4 mm | 4 mm | 4 mm |
| Length | 7.8 mm | 7.8 mm | 7.8 mm |
| Width | 7 mm | 7 mm | 7 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Mounting Style | Through Hole | SMD/SMT | Through Hole |
| Maximum Trigger Current | 2 mA | 2 mA | 2 mA |
| Maximum Turn On Time | 60 us | 60 us | 60 us |
| Product Type | Triac & SCR Output Optocouplers | Triac & SCR Output Optocouplers | Triac & SCR Output Optocouplers |
| Factory Pack Quantity | 1000 | 1000 | 1000 |
| Subcategory | Optocouplers | Optocouplers | Optocouplers |
| Unit Weight | 0.033863 oz | 0.018946 oz | 0.033863 oz |
| Maximum Continuous Output Current | - | 300 mA | - |