RD1266-01 | 12mm 32Ω 20mW Earphone Speaker Driver Unit
High-performance 12mm earphone speaker driver with 32Ω impedance, 128dB SPL, 20mW max power, and PU+Paper diaphragm for premium acoustic output.
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- Designed By: SpeakerDriver
- Product ID: RD1266-01
Technical
Specifications
| Specification | Details |
|---|---|
| Model | RD1266-01 |
| Driver Size | 12mm |
| Impedance | 32Ω ±15% (1kHz, 1mW) |
| Rated Power | 15mW (0.69V) |
| Max Power | 20mW (0.8V) |
| SPL (Sensitivity) | 128 ±2dB @ 1kHz, 126mVrms with 711EAR |
| Resonance Frequency | 220Hz ±20% (Free Air) |
| Frequency Response | Shown in Figure 4 |
| Diaphragm Material | PU + Paper |
| Magnet Material | NdFeB |
| Polarity | Positive terminal → diaphragm moves forward |
| Voice Coil | Copper |
| Net Weight | Approx. 1.2g |
| Operating Temperature | -20°C to +65°C |
| Storage Temperature | -20°C to +65°C |
| Insulation Impedance | >1 MΩ @ 50V DC |
| THD | ≤2.5% @ 1mW / 711EAR |
| Audible Noise Test | No abnormal sound (50–3kHz sine sweep, 3 cycles) |
| Reliability Tests | Load Test, Humidity, Drop, Thermal Cycle, High/Low Temp, Vibration, Salt Spray |
| Frame Material | PC |
| Plate Material | SPCC |
| Shape | Round |
| Packing | 100 pcs/tray, 60 trays/carton (6000 pcs/carton) |