2945

2945

$4.22
  • Description:K 28.40 8 OHM
  • Series:-
  • Mfr:Visaton GmbH & Co. KG
  • Package:Retail Package

SKU:892c3b1c6dcc Category: Brand:

  
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Product Detailed Parameters

  • Description:K 28.40 8 OHM
  • Series:-
  • Mfr:Visaton GmbH & Co. KG
  • Package:Retail Package
  • Type:General Purpose
  • Technology:Magnetic
  • Impedance:8 Ohms
  • Power - Max:3 W
  • Shape:Oval, Rectangular Frame
  • Termination:Solder Pads
  • Size / Dimension:1.575" L x 1.102" W (40.00mm x 28.00mm)
  • Height - Seated (Max):0.461" (11.70mm)
  • Frequency - Self Resonant:450Hz
  • Efficiency - dBA:79
  • Efficiency - Testing:1W/1M
  • Efficiency - Type:Sound Pressure Level (SPL)
  • Port Location:Top
  • Material - Cone:Paper
  • Material - Magnet:Nd
  • Ingress Protection:-
  • Ratings:-
  • Frequency Range:230 Hz ~ 20 kHz
  • Power - Rated:2 W

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2945

Overview

The Visaton 2945 is a miniature full-range loudspeaker designed for general-purpose audio applications. It features an 8-ohm nominal impedance and supports a rated power of 2 watts with a maximum power handling capacity of 3 watts. The frequency response spans from 230 Hz to 20 kHz, with a resonant frequency specified at 450 Hz. The unit utilizes a rectangular plastic basket construction and measures approximately 28 mm by 40 mm. Termination is achieved via solder lugs, facilitating direct circuit integration.

Feature Summary

  • Miniature full-range design suitable for compact enclosures
  • Rectangular plastic basket housing for structural stability
  • Solder lug termination style for straightforward wiring

Applications

  • General purpose audio reproduction
  • Compact speaker systems
  • Miniature transducer assemblies

Procurement Notes

Verify the specific suffix variant against the manufacturer catalog, as Visaton often uses alphanumeric codes like K 28.40 to denote impedance or tolerance variations. Confirm that the solder lug termination matches your PCB or wire harness requirements. Ensure the mechanical dimensions fit the intended enclosure space. Check RoHS compliance status if required by your manufacturing standards. Validate the rated versus maximum power limits for your specific signal input conditions.

Selection Notes

Select this component when a small form factor is critical alongside broad frequency coverage. The 8-ohm impedance aligns with standard low-voltage amplifier outputs. Consider the 2-watt rating for low-to-moderate volume applications. The rectangular shape allows for efficient packing in tight spaces compared to circular drivers. Evaluate the 230 Hz lower limit to ensure it meets bass requirements for the target application.

Part Context

This part belongs to Visaton's line of miniature loudspeakers, which are engineered for high efficiency in small volumes. The 2945 model represents a standard full-range driver option within their portfolio, balancing size constraints with audible performance. It is commonly used in consumer electronics where space is limited but clear audio output is necessary.

Replacement Considerations

Direct substitutes must match the 28x40mm footprint, 8-ohm impedance, and 2W power rating. Verify that alternative models maintain similar frequency response curves, particularly the 450 Hz resonance point. Ensure the mounting method and terminal type are compatible with existing assembly processes.

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