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| Part Number | OP521DA |
| Datasheet | OP521DA datasheet |
| Description | PHOTODARLINGTON NPN CLR 1206 SMD |
| Manufacturer | TT Electronics/Optek Technology |
| Series | - |
| Part Status | Obsolete |
| Voltage - Collector Emitter Breakdown (Max) | 35V |
| Current - Collector (Ic) (Max) | 30mA |
| Current - Dark (Id) (Max) | 200nA |
| Wavelength | 935nm |
| Viewing Angle | 150° |
| Power - Max | 100mW |
| Mounting Type | Surface Mount |
| Orientation | Top View |
| Operating Temperature | -25°C ~ 85°C (TA) |
| Package / Case | 1206 (3216 Metric) |