Description
This 10-Piece Electret Microphone features miniature, highly sensitive acoustic transducers designed for audio recording, sound-level detection, and voice pickup in DIY electronics and commercial devices.
Each capsule utilizes a permanent electrostatic charge (electret) combined with an integrated Junction Field-Effect Transistor (JFET) impedance converter. This compact design allows the capsule to convert ambient sound waves into clear analog electrical signals with minimal power consumption. They are ideal for microcontrollers like Arduino, ESP32, and Raspberry Pi, as well as voice-activated switches, sound sensors, intercoms, and hearing aids.
Features
High Acoustic Sensitivity: Efficiently captures low-amplitude sounds, vocal frequencies, and ambient noise.
Compact Omnidirectional Pickup: 360° spatial polar pattern captures sound evenly from all directions regardless of capsule orientation.
Integrated JFET Pre-Amplifier: Internal transistor matches high electret impedance down to standard low-impedance audio circuits.
Broad Voltage Compatibility: Operates smoothly across low DC supply voltages.
Through-Hole Solder Pins: Standard two-terminal PCB pins allow simple breadboard prototyping or permanent PCB soldering.
Durable Aluminum Shell: Protective metal housing shields internal diaphragms from mechanical damage and electromagnetic interference (EMI).
Specifications
Quantity: 10 Pieces / Pack
Microphone Type: Electret Condenser Microphone (ECM)
Polar Pattern: Omnidirectional
Operating Voltage Range: 1.5V - 10V DC
Frequency Response Range: 20Hz - 20,000Hz
Signal-to-Noise Ratio (S/N): 58dB
