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Visaton K 40 8 Ohm, 1.6 Inch, Miniature Speaker

Part number: 2840

A 4 cm miniature speaker with a Mylar diaphragm and metal basket for signal output in machines and equipment.

Nominal size
4 cm / 1.6 inch
Impedance
8 Ω
Rated power
1 W
Cut-out
36.5 mm
Sensitivity
83 dB (1 W/1 m)
Resonance
520 Hz
ex VAT
£5.94 inc VAT
Maximum quantity available reached.

Stock and dispatch
Selected products are held in UK stock; other lines are sourced to order. Dispatch timing depends on the product and quantity.

Delivery information. Need it for a specific date? Ask us.

Quantity discounts

Description

The K 40 is a compact 4 cm miniature speaker with a Mylar diaphragm and a metal basket, made for voice and signal output in machines and equipment indoors and outdoors. This 8 Ω version handles 1 W rated power and weighs 10 g. Its IP67 front-side protection applies when it is built into a sealed enclosure.

Typical applications

  • Voice and signal output in machines
  • Indoor and outdoor equipment
Full specifications
K 40 · 8 Ω
Rated power1 W
Maximum power2 W
Nominal impedance8 Ω
Frequency response (−10 dB)350–6000 Hz
Mean sound pressure level83 dB (1 W/1 m)
Resonance frequency fs520 Hz
Voice coil diameter13.5 mm
Height of winding1.8 mm
Cut-out36.5 mm
Net weight0.01 kg
TerminalsSolder joints
Protective systemIP67 — front side in a sealed enclosure
Temperature range–25 to 70 °C
Dimensions and drawings
K 40 · 8 Ω · part 2840 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for a 36.5 mm opening and the 40 mm basket, with about 6 mm behind the panel for the body and solder points. Support the basket evenly; bonding to the panel may be needed for the front-side sealing.

Solder to the rear points and observe polarity. Use an output stage suitable for the 8 Ω load and keep the drive within the 1 W rating.

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