PUM-5250L-R

Microphones Overview

The PUM-5250L-R is an omnidirectional condenser microphone manufactured by PUI Audio, Inc. It features a unidirectional lead configuration and a compact 6mm diameter housing. The device operates with a sensitivity of -50 dB and supports a frequency response ranging from 20 Hz to 18 kHz. Electrical specifications include a supply voltage range of 1 VDC to 10 VDC and a current consumption of 500 µA. The unit presents an impedance of 680 ohms, designed for reliable analog audio signal transduction in various electronic applications.

Microphones Feature Summary

• Omnidirectional polar pattern for uniform acoustic pickup
• Compact 6mm diameter form factor suitable for space-constrained designs
• Analog output with standard bias voltage requirements

Microphones Applications

• Consumer electronics audio input
• Industrial control panels
• Medical equipment monitoring

Microphones Procurement Notes

Verify the specific suffix variant required, as PUI Audio offers both omnidirectional (R) and cardioid (C3310) configurations within the same base series. Confirm that the application circuit provides the necessary 1V to 10V DC bias voltage and can handle the 500 µA current draw. Ensure mechanical mounting allows for the 6mm diameter footprint and adequate acoustic access to the diaphragm.

Microphones Selection Notes

Select this model when an omnidirectional response is preferred over directional pickup. Compare against the PUM-5250L-C3310-R if a cardioid pattern is needed for noise rejection. Ensure the host system accommodates the 680-ohm impedance and analog interface. Validate that the operating temperature range meets the environmental requirements of the final assembly.

Microphones Part Context

This component belongs to PUI Audio's PUM series of electret condenser microphones. The series is engineered for general-purpose audio sensing in appliances and electronics. The 'R' suffix denotes the omnidirectional characteristic, distinguishing it from other variants in the lineup that offer different polar patterns or connector types.

Microphones Replacement Considerations

The PUM-5250L-C3310-R is a related variant but features a cardioid polar pattern rather than omnidirectional. Direct substitution requires verifying if the directional characteristic affects the application's acoustic performance. Other generic 6mm omnidirectional microphones may fit mechanically but require careful evaluation of sensitivity and bias voltage compatibility.