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K 20.40 - 8 Ohm

Art. No. 2941

2 x 4 cm (0.8" x 1.6") miniature speaker. Thanks to its compact dimensions, suitable for signal output in machines and other equipment where space is at a premium.

*) IP protection class for front side when built into a sealed enclosure

Typical applications

  • Voice and signal output in machines and other equipment both indoors and outdoors


  • Plastic basket
  • UV-resistant
*Gross price for private customers. Industrial prices are available on request.
Technical Data
Amplitude & Impendance Frequency
Rated power 1 W
Maximum power 2 W
Nominal impedance Z 8 Ohm
Frequency response 400–20000 Hz
Mean sound pressure level 79 dB (1 W/1 m)
Excursion limit +/- 0.5 mm
Resonance frequency fs 650 Hz
Height of front pole-plate 1 mm
Voice coil diameter 12 mm
Cutout diameter 38 x 18 mm
Net weight 0.007 kg
Connections Solder lugs
Protective system IP 64 *)
Temperature range −40 ... 85 °C

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