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| PartNumber | 4N31S(TB) | 4N31S(TA)-V | 4N31S(TA) |
| Description | Transistor Output Optocouplers Optocouplers | Transistor Output Optocouplers Optocouplers | Transistor Output Optocouplers Optocouplers |
| Manufacturer | Everlight Electronics Co Ltd | Everlight Electronics Co Ltd | Everlight Electronics Co Ltd |
| Product Category | Optoisolators - Transistor, Photovoltaic Output | Optoisolators - Transistor, Photovoltaic Output | Optoisolators - Transistor, Photovoltaic Output |
| Series | - | - | - |
| Packaging | Tape & Reel (TR) Alternate Packaging | Tape & Reel (TR) Alternate Packaging | Tape & Reel (TR) Alternate Packaging |
| Package Case | 6-SMD, Gull Wing | 6-SMD, Gull Wing | 6-SMD, Gull Wing |
| Input Type | DC | DC | DC |
| Operating Temperature | -55°C ~ 100°C | -55°C ~ 100°C | -55°C ~ 100°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Output Type | Darlington with Base | Darlington with Base | Darlington with Base |
| Number of Channels | 1 | 1 | 1 |
| Supplier Device Package | 6-SMD | 6-SMD | 6-SMD |
| Current Output Channel | - | - | - |
| Voltage Output Max | 55V | 55V | 55V |
| Current DC Forward If Max | 60mA | 60mA | 60mA |
| Voltage Isolation | 5000Vrms | 5000Vrms | 5000Vrms |
| Voltage Forward Vf Typ | 1.2V | 1.2V | 1.2V |
| Current Transfer Ratio Min | 50% @ 10mA | 50% @ 10mA | 50% @ 10mA |
| Current Transfer Ratio Max | - | - | - |
| Turn On Turn Off Time Typ | 5μs, 40μs (Max) | 5μs, 40μs (Max) | 5μs, 40μs (Max) |
| Rise Fall Time Typ | - | - | - |
| Vce Saturation Max | 1.2V | 1.2V | 1.2V |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | 5000 Vrms |