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4W High-power Miniature Speaker

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Quoting product code: N25KJ


About this product


  • 40mm x 28mm rectangular speaker
  • High power up to 4W
  • Low profile, paper and cloth cone speaker with (Neodymium Iron Boron Nd-Fe-B) magnet

Product overview

• 40mm x 28mm rectangular speaker
• High power up to 4W
• Low profile, paper and cloth cone speaker with (Neodymium Iron Boron Nd-Fe-B) magnet• Designed primarily for use in sirens and buzzers
• RoHS compliant
• Easy to mount with 4 fixing holes


Dimensions & Weight



Operating Specifications


4 ohmΩ

Frequency Range:

0 to 20000 Hz

Resonant Frequency:



Housing Material:


Cone Material:

Paper and cloth

w do you sell a sound box to enclose the speaker back in 

Asked by: welsh wizard
Unfortunately i am sorry but the item in question doesn't support use in you intended application.
Answered by: darren cordon
Date published: 2017-02-17

would these speakers be ok for a docking station/mp3 player?

Asked by: bobfish
You can task the speakers to any usage you see fit, however we are unable to advise on any project or circuit design.
Answered by: Les
Date published: 2016-09-15

The speaker is listed as 40mm x 28mm border dimensions, but how deep is the speaker?

Asked by: Rich
This information is presented in the user guide/datasheet for the device, which can be found on the downloads tab of the product listing. However if you are using a mobile phone or tablet to view our website it may not be visible. To this end I have copied in a link to the electronic version of the instructions as well as a brief summary of the requested information below for your convenience. The speaker is 11.5mm deep
Answered by: Les
Date published: 2016-12-21

Can this speaker be connected to a Bluetooth module, if so what resistors and capacitors would i need with them

Asked by: Harry
As much as we would love to be able to help here, we cannot offer design project advice or assistance, we are more than happy to locate products and support you with your purchases but we are not able to design entire circuits or projects for you. If you do have the design/circuit information detailing the value of the components needed we will be happy to locate these for you.
Answered by: Billy
Date published: 2016-03-08

Can I have a formal datasheet by email of this speaker please? I need to see the SPL vs Frequency response graph. Tnx.

Asked by: shmuel
I have sent a copy of the data sheet to the email address provided.
Answered by: Dominic
Date published: 2015-07-17
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