Murata PKM Series 4kHz Sounder 22mm

The Murata PKM Series 4kHz Sounder is a high-performance piezoelectric transducer designed for generating a clear and audible tone in a compact 22mm diameter package. Engineered for reliability, it produces a distinctive 4kHz sound frequency, making it highly effective for use as an alert or indicator in electronic devices.

This sounder generates a sound pressure level (SPL) of 75dB at a distance of 10cm, ensuring the signal is clearly perceptible even in moderately noisy environments. Its low-profile construction, with a height of just 43mm, allows for flexible integration into space-constrained designs, from consumer electronics to industrial control panels.

Constructed with robust materials, the sounder operates reliably across a wide temperature range from -20°C to +80°C, making it suitable for applications that may experience varying environmental conditions. It features a standard capacitance of 0.012µF and is designed for easy soldering into PCB assemblies.

Key Features & Specifications

• Function: Piezoelectric sounder/transducer
• Sound Frequency: 4kHz
• Diameter: 22mm
• Sound Pressure Level: 75dB (at 10cm)
• Operating Temperature Range: -20°C to +80°C
• Capacitance: 0.012µF
• Compact Dimensions: 33mm (W) x 43mm (H) x 15mm (D)
• Lightweight Design: Approx. 2.893 grams

Ideal for providing audible feedback, warnings, or status indicators, this Murata component is a trusted choice for engineers seeking a dependable and consistent acoustic output.