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| Part Number | AT-40 |
| Datasheet | AT-40 datasheet |
| Description | SPEAKER 100OHM 150MW 80DB |
| Manufacturer | PUI Audio, Inc. |
| Series | AT |
| Part Status | Obsolete |
| Technology | Magnetic |
| Type | General Purpose |
| Frequency Range | 500Hz ~ 20kHz |
| Frequency - Self Resonant | 1000Hz |
| Impedance | 100 Ohms |
| Efficiency - dBA | 73.00 |
| Efficiency - Testing | 100mW/500mm |
| Efficiency - Type | Sound Pressure Level (SPL) |
| Power - Rated | 150mW |
| Power - Max | 200mW |
| Port Location | Top |
| Shape | Round |
| Material - Cone | Polyester, Polyethylene Terephthalate (PET) |
| Material - Magnet | Nd-Fe-B |
| Ingress Protection | - |
| Ratings | - |
| Termination | PC Pins |
| Size / Dimension | 1.175" Dia (29.85mm) |
| Height - Seated (Max) | 0.492" (12.50mm) |