1. Core Parameters (Based on Specification Sheet)
Basic Specifications
Dimensions: 40mm diameter × 24.3mm height (external magnet structure)
Impedance: 2Ω±15% (DCR 2.0Ω±10% @1000Hz)
Power: Rated 3W (2.45V drive) / Peak 5W (3.16V drive)
Frequency Range: F0~15kHz (-10dB, optimized for mid-low frequency audio)
Sensitivity: 81±3dB (0.5m/1W, average at 500-1000Hz)
Key Performance Tests
Durability: 96-hour white noise load test (2W, 150Hz-20kHz)
Temperature Range: Operating -25℃~+60℃, Storage -30℃~70℃
Humidity Resistance: 24-hour test at +40℃/90-95% RH with no failure
2. Audio Product Applications
Bass-Enhanced Design
210Hz Resonance Frequency: Optimized for drums/bass in portable Bluetooth speakers.
Low Impedance: 2Ω matches Class D amplifiers for high-efficiency power output.
Reliability Features
Industrial Soldering: Terminals withstand 350℃/3-5s soldering (automotive-grade).
Drop Test: Passes 6 drops from 1m height (IEC 60068-2-31 compliant).
Compact Integration
24.3mm Slim Profile: Fits soundbars and narrow-cavity devices.
External Magnet: 20% better heat dissipation than internal magnet designs.
3. Typical Use Cases
Portable Bluetooth Speakers: 2Ω impedance enables 8-hour playback with 18650 batteries.
Car Audio Systems: -25℃ cold-start performance for winter reliability.
KTV Microphones: No abnormal sound at 150Hz-5kHz sine wave input (vocal range optimized).
4. Customization & Support
Impedance Options: 4Ω/8Ω versions available (requires magnetic circuit adjustment).
Prototyping: 72-hour sample delivery with frequency response/impedance reports.