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| PartNumber | MOC3021S | MOC3021S-TA | MOC3021S-T |
| Description | Triac & SCR Output Optocouplers Optocoupler TRIAC | Triac & SCR Output Optocouplers Optocoupler TRIAC | |
| Manufacturer | Lite-On | Lite-On | Lite-On Inc. |
| Product Category | Triac & SCR Output Optocouplers | Triac & SCR Output Optocouplers | Optoisolators - Triac, SCR Output |
| RoHS | Y | Y | - |
| Package / Case | SMD-6 Gull Wing | SMD-6 Gull Wing | - |
| Zero Crossing Circuit | Without Zero-Crossing Circuit | Without Zero-Crossing Circuit | No |
| Output Type | PhotoTriac | PhotoTriac | Triac |
| Number of Channels | 1 Channel | 1 Channel | 1 |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | 5000 Vrms |
| If Forward Current | 50 mA | 50 mA | - |
| Vf Forward Voltage | 1.15 V | 1.15 V | - |
| Pd Power Dissipation | 330 mW | 330 mW | - |
| Off state Output Voltage VDRM | 400 V | 400 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 100 C | + 100 C | + 100 C |
| Packaging | Tube | Reel | Tape & Reel (TR) Alternate Packaging |
| Height | 3.5 mm | 3.5 mm | - |
| Length | 7.3 mm | 7.3 mm | - |
| Width | 6.5 mm | 6.5 mm | - |
| Brand | Lite-On | Lite-On | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Maximum Trigger Current | 8 mA | 8 mA | 8 mA |
| Maximum Turn On Time | 20 us | 20 us | 20 us |
| Product Type | Triac & SCR Output Optocouplers | Triac & SCR Output Optocouplers | - |
| Factory Pack Quantity | 65 | 1000 | - |
| Subcategory | Optocouplers | Optocouplers | - |
| Series | - | - | - |
| Package Case | - | - | SMD-6 Gull Wing |
| Operating Temperature | - | - | -40°C ~ 100°C |
| Mounting Type | - | - | Surface Mount |
| Supplier Device Package | - | - | 6-SMD |
| Current DC Forward If Max | - | - | 50mA |
| Voltage Isolation | - | - | 5000Vrms |
| Voltage Off State | - | - | 400V |
| Current On State It RMS Max | - | - | - |
| Approvals | - | - | CQC, CSA, TUV, UL, VDE |
| Current Hold Ih | - | - | 250μA (Typ) |
| Voltage Forward Vf Typ | - | - | 1.15V |
| Turn On Time | - | - | - |
| Static dV dt Min | - | - | 1kV/μs |
| Current LED Trigger Ift Max | - | - | 15mA |
| Pd Power Dissipation | - | - | 330 mW |
| Vf Forward Voltage | - | - | 1.15 V |
| If Forward Current | - | - | 50 mA |
| Off state Output Voltage VDRM | - | - | 400 V |