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| Part Number | DWFK-31785-B75 | DWFK-31785-000 |
| Manufacturer | Knowles | Knowles |
| Series | DWFK | DWFK |
| Packaging | Tray | Tray |
| Product Status | Active | Active |
| Technology | - | Magnetic |
| Type | - | Receiver, Balanced Armature |
| Frequency Range | - | 200 Hz ~ 6.5 kHz |
| Frequency - Self Resonant | - | - |
| Impedance | - | 30.1 Ohms |
| Efficiency - dBA | - | 101.20 |
| Efficiency - Testing | - | - |
| Efficiency - Type | - | Sound Pressure Level (SPL) |
| Power - Rated | - | - |
| Power - Max | - | - |
| Port Location | - | Top |
| Shape | - | Rectangular |
| Material - Cone | - | - |
| Material - Magnet | - | - |
| Ingress Protection | - | - |
| Ratings | - | - |
| Termination | - | Solder Pads |
| Size / Dimension | - | 0.197" L x 0.108" W (5.00mm x 2.73mm) |
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