Raraion Omnidirectional Electret Microphone Cartridge

The Raraion Omnidirectional Electret Microphone Cartridge is a high-quality component designed for reliable sound capture in a wide range of audio and communication applications. This cartridge features a true omnidirectional polar pattern, meaning it picks up sound equally from all directions, making it an excellent choice for conference calls, ambient noise recording, and hands-free communication devices.

Supplied with a 150mm long, factory-fitted screened cable for immediate integration, it helps reduce electromagnetic interference for cleaner audio signals. The cable ends are insulated and tin-plated, ensuring good solderability and reliable electrical connections. This microphone is an electret condenser type, known for its high sensitivity and stable performance, requiring a simple external bias resistor for operation.

Key Specifications & Integration

To function correctly, the microphone requires an external 1-2.2kΩ resistor for AF (audio frequency) decoupling and a coupling capacitor in the range of 0.1-4.7µF. It operates on a low supply voltage, from a minimum of 1.5V up to a maximum of 10V, with a very low maximum drain current of just 500µA, making it highly efficient and suitable for battery-powered portable electronics.

With a sensitivity of 58dB and an output impedance of 2.2kΩ, it delivers a strong, clear signal that is compatible with a variety of audio input circuits. Its frequency response spans from 50Hz to 16kHz, capturing a broad spectrum of sound from low-end warmth to clear high frequencies, suitable for voice and general audio applications.

Applications

This versatile microphone cartridge is ideal for integration into professional and DIY audio projects, including intercom systems, voice recorders, hearing aids, and wireless communication devices. Its compact dimensions and reliable performance make it a trusted component for engineers and hobbyists seeking quality,