87DB Miniature Mylar Speaker 23mm Thin / 0.5w Micro Dynamic Speaker
2.Nominal Power: 0.25w
3.Maximum Power: 0.5w
5. SPL: 87±3dB/0.1w/0.1
7. RoHS: YES
Manorshi Electronics Co.Ltd. is a professional manufacturers of
acoustic components in China. We can supply all kinds of acoustic
and security components such as Piezo Buzzer(Active), Piezo
buzzer(passive), Magnetic buzzer(self-Drive), SMD buzzer,
Mechanical buzzer, We also make Ultrasonic sensors, Distance measuring sensors, Which
have Water proof type and Open type, And other related products
such as Speakers.
Our products are widely used in electric appliances, computers,
cordless phones ,alarm systems and parking systems. Backed by
professional engineers and advanced equipment, we assure the best
quality products, competitive prices, and fast delivery.
If you have any enquiry about our products, Pls contact us now.
The speaker's function is to convert electrical signals into audio
signals, so their performance is completely different,they are the
utility model has the opposite function.
The current audio voice coil induces a N pole and S pole changing
alternating magnetic field and magnetic circuit of loudspeaker
system N pole, S pole fixed magnetic field interaction, the voice
coil vibrates, which led to stick to the voice coil drum paper and
vibration, promote the air to produce sound.
When the current through the voice coil according to Fleming's left
hand method, in the permanent magnetic field, the voice coil to do
the magnetic field line cutting movement, which drives the basin to
promote the surrounding air and sound.