Miniature Flat Speaker 8-16Ω 0.25W 40x28mm
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Prices updated: 13 Oct 2026
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About this product
A 40 mm miniature flat speaker with a paper diaphragm, rated at 0.25 W with an impedance of 8 to 16 Ω. Its listed frequency range is 420 Hz to 5 kHz, suiting small alarms, toys and simple sound prototypes. It is a compact choice for devices that need basic audio output.
Specifications
- Impedance
- 8-16 Ω
- Power rating
- 0.25 W
- Frequency range
- 420 Hz - 5000 Hz
- Diameter
- 40 mm
- Height
- 28 mm
- Diaphragm
- Paper
Frequently asked questions
Can I connect this speaker directly to an Arduino or ESP32 pin?
It is not recommended for audible output. Drive it through an amplifier stage, such as a small audio amplifier module, and keep the delivered power at or below the 0.25 W rating.
Does it match common small audio amplifiers?
Yes, the 8 to 16 Ω impedance range matches common small amplifier outputs. Make sure the amplifier's output power is kept below the speaker's 0.25 W rating.
