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Visaton K 50 SQ 8 Ohm, 2 Inch, Miniature Speaker

Part number: 2897

A 5 cm square miniature speaker with four mounting holes, foam gasket and contact pins for machines and equipment.

Nominal size
5 cm / 2 inch
Impedance
8 Ω
Rated power
2 W
Cut-out
45 mm
Sensitivity
83 dB (1 W/1 m)
Resonance
480 Hz
ex VAT
£8.34 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 50 SQ is a 5 cm miniature speaker with a Mylar diaphragm in a square metal basket with four mounting holes and a foam gasket, made for voice and signal output in machines and equipment indoors and outdoors. The 8 Ω unit handles 2 W rated power and has 2.8 x 0.5 mm contact pins. Its IP65 front-side protection applies when it is built into a sealed enclosure.

Typical applications

  • Voice and signal output in machines
  • Indoor and outdoor equipment
  • Rail and transport equipment
Full specifications
K 50 SQ · 8 Ω
Rated power2 W
Nominal impedance8 Ω
Frequency response (−10 dB)250–10000 Hz
Mean sound pressure level83 dB (1 W/1 m)
Opening angle (-6 dB)180°/4000 Hz
Excursion limit±1 mm
Resonance frequency fs480 Hz
Height of front pole-plate2 mm
Voice coil diameter14 mm
Height of winding3 mm
Cut-out45 mm
Net weight0.05 kg
D.C. resistance Rdc7.3 Ω
Mechanical Q factor Qms6.42
Electrical Q factor Qes7.32
Total Q factor Qts3.42
Equivalent volume Vas0.06 l
Effective piston area Sd12.5 cm²
Dynamically moved mass Mms0.4 g
Force factor Bxl1.12 T m
Terminals2.8 x 0.5 mm (+)/2.8 x 0.5 mm (-)
Protective systemIP65 — front side in a sealed enclosure
Temperature range−40 to 80 °C
Dimensions and drawings
K 50 SQ · 8 Ω · part 2897 — Dimension drawing

Dimension drawing · Open original image

Installation and cabinet guidance

Allow for a 45 mm opening and the 51 mm square frame, with four 4.3 mm fixing holes on a 40 mm pitch. Leave about 20 mm behind the panel for the magnet and contact pins.

Compress the foam gasket evenly against a flat panel so the front-side protection is effective; bonding and a front cover or grille may be needed.

Use connectors that fit the 2.8 x 0.5 mm pins, observe polarity and keep the drive within the 2 W rating from an output stage suitable for the 8 Ω load.

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