| PartNumber | HMHA281R2 | HMHA281R1 | HMHA281R1V |
| Description | Transistor Output Optocouplers Optocoupler Phototransistor | OPTOISO 3.75KV TRANSISTOR 4SMD | OPTOISO 3.75KV TRANSISTOR 4SMD |
| Manufacturer | ON Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor |
| Product Category | Transistor Output Optocouplers | Optoisolators - Transistor, Photovoltaic Output | Optoisolators - Transistor, Photovoltaic Output |
| RoHS | Y | - | - |
| Package / Case | SMD-4 | - | - |
| Output Type | NPN Phototransistor | Transistor | Transistor |
| Number of Channels | 1 Channel | 1 | 1 |
| If Forward Current | 50 mA | - | - |
| Maximum Collector Emitter Voltage | 80 V | - | - |
| Maximum Collector Current | 50 mA | - | - |
| Isolation Voltage | 2500 Vrms | - | - |
| Maximum Collector Emitter Saturation Voltage | 0.4 V | - | - |
| Vf Forward Voltage | 1.3 V | - | - |
| Vr Reverse Voltage | 6 V | - | - |
| Pd Power Dissipation | 150 mW | - | - |
| Minimum Operating Temperature | - 55 C | - | - |
| Maximum Operating Temperature | + 100 C | - | - |
| Series | HMHA281 | - | - |
| Packaging | Reel | Tape & Reel (TR) | Tape & Reel (TR) |
| Configuration | 1 Channel | - | - |
| Height | 2.19 mm | - | - |
| Length | 2.69 mm | - | - |
| Width | 4.4 mm | - | - |
| Brand | ON Semiconductor / Fairchild | - | - |
| Current Transfer Ratio | 600 % | - | - |
| Product Type | Transistor Output Optocouplers | - | - |
| Factory Pack Quantity | 2500 | - | - |
| Subcategory | Optocouplers | - | - |
| Part # Aliases | HMHA281R2_NL | - | - |
| Unit Weight | 0.004233 oz | - | - |
| Package Case | - | 4-SOIC (0.173", 4.40mm) | 4-SOIC (0.173", 4.40mm) |
| Input Type | - | DC | DC |
| Operating Temperature | - | -55°C ~ 100°C | -55°C ~ 100°C |
| Mounting Type | - | Surface Mount | Surface Mount |
| Supplier Device Package | - | 4-Mini-Flat | 4-Mini-Flat |
| Current Output Channel | - | 50mA | 50mA |
| Voltage Output Max | - | 80V | 80V |
| Current DC Forward If Max | - | 50mA | 50mA |
| Voltage Isolation | - | 3750Vrms | 3750Vrms |
| Voltage Forward Vf Typ | - | 1.3V (Max) | 1.3V (Max) |
| Current Transfer Ratio Min | - | 50% @ 5mA | 50% @ 5mA |
| Current Transfer Ratio Max | - | 600% @ 5mA | 600% @ 5mA |
| Turn On Turn Off Time Typ | - | - | - |
| Rise Fall Time Typ | - | 3μs, 3μs | 3μs, 3μs |
| Vce Saturation Max | - | 400mV | 400mV |