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90dB speaker is a ultra small size of speaker, high-quality sound, with a variety of sizes to choose from. Featuring a high-grade Mylar film diaphragm, provides excellent sound quality with minimal distortion and is designed for professional communication equipment, portable electronics, and IoT devices where space and performance are at a premium.
Key Features
- Ultra-Compact Design
Size : 28.0 mm diameter x 5.6 mm height.
less burdened: Weighs≤5 grams,least load to portable devices
- Superior Acoustic Performance
Impedance: 8Ω ±15%, can be used for more kinds of audio drivers and circuits
Sound Pressure Level (SPL): 90 dB (at 0.1W/0.1M), for loud and clear sound output, even in a noisy environment
Frequency Response: Tailored for speech, with a brightened midrange and bass roll-off.
- Durability & Environmental Resistance
Mylar Diaphragm: 0.02-0.03 mm provides moisture resistance, durability and improved frequency response of a design similar to the paper cone loudspeakers.
Rugged Construction: Durable metal horn loaded design for higher efficiency and easier temperature thermal management.
Weather Resistant：IP54-rated for dust and water splash protection, which makes them suitable even in bad weather.
Part Number: SM28S500L-F
SPECIFICATIONS：
Dimension (mm) | Φ28.0×5.6H |
Input Power (W) | 1.0 |
Max Input Power (W) | 1.5 |
Impedance (Ω) | 8 ± 15% at 2kHz |
Sensitivity (dB) | 90 ± 3dB(0.1W,0.1M) average of 0.8,1.0,1.2,1.5 KHz |
Resonance Frequency (Hz) | 700±20%@1.0V Without Baffler |
Frequency Range (Hz) | F0-20KHz |
Operating Temperature (℃) | -20～+55 |
Weight (g) | 8.0 |
DIMENSION:
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