| PartNumber | 4N38SM | 4N38SR2M | 4N38SD |
| Description | Transistor Output Optocouplers 6PW HVCEO TR SMD | Transistor Output Optocouplers Phototransistor | Transistor Output Optocouplers Optocoupler SM-DIP6 Phototransistor |
| 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-6 | SMD-DIP-6 | SMD-DIP-6 |
| Output Type | NPN Phototransistor | NPN Phototransistor | NPN Phototransistor |
| Number of Channels | 1 Channel | 1 Channel | 1 Channel |
| If Forward Current | 10 mA | 80 mA | 80 mA |
| Maximum Collector Emitter Voltage | 80 V | 80 V | 80 V |
| Maximum Collector Current | 100 mA | 100 mA | 100 mA |
| Isolation Voltage | 7500 Vrms | 7500 Vrms | 5300 Vrms |
| Maximum Collector Emitter Saturation Voltage | 1 V | 1 V | 1 V |
| Vf Forward Voltage | 1.5 V | 1.5 V | 1.5 V |
| Vr Reverse Voltage | 6 V | 6 V | 6 V |
| Pd Power Dissipation | 300 mW | 300 mW | 300 mW |
| Minimum Operating Temperature | - 40 C | - 40 C | - 55 C |
| Maximum Operating Temperature | + 100 C | + 100 C | + 100 C |
| Series | 4N38M | 4N38M | - |
| Packaging | Bulk | Reel | Reel |
| Configuration | 1 Channel | 1 Channel | 1 Channel |
| Height | 3.53 mm | 3.53 mm | 3.67 mm |
| Length | 8.89 mm | 8.89 mm | 8.89 mm |
| Width | 6.6 mm | 6.6 mm | 6.86 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Collector Emitter Breakdown Voltage | 80 V | - | - |
| Mounting Style | SMD/SMT | - | - |
| Current Transfer Ratio | 20 % | - | - |
| Product Type | Transistor Output Optocouplers | Transistor Output Optocouplers | Transistor Output Optocouplers |
| Factory Pack Quantity | 1000 | 1000 | 1000 |
| Subcategory | Optocouplers | Optocouplers | Optocouplers |
| Unit Weight | 0.030159 oz | 0.028572 oz | - |
| Part # Aliases | - | - | 4N38SD_NL |