Omnidirectional Electret Capacitive Microphone – 6x5MM

6*5mm EM6050 Capacitive Microphone is a high-sensitivity electret condenser microphone (ECM) designed for precise sound capture in compact electronic devices. This omnidirectional component converts acoustic waves into electrical signals using a permanently polarized capacitor, providing excellent frequency response across the audible spectrum. Consequently, engineers often select this specific 6050 series model for its reliable performance and low noise floor. Furthermore, its small form factor allows for seamless integration into portable equipment where board space is a premium. Therefore, you can achieve professional-grade audio input for your embedded projects by utilizing this versatile capacitive transducer.

Key Features:

• High Sensitivity: The EM6050 offers a high sensitivity rating, ensuring it captures subtle audio nuances even in quiet environments.
• Omnidirectional Pickup: This device captures sound equally from all directions, which provides a consistent response regardless of the microphone’s orientation.
• Compact Design: The 6 mm diameter and 5 mm height profile facilitate installation in thin enclosures and handheld devices.
• Low Current Consumption: Designed for efficiency, this microphone operates with minimal power draw, thereby extending the battery life of portable electronics.
• Solder Terminal Pins: Features standard solderable leads for secure through-hole mounting or direct wire connection to a PCB.

Technical Specifications:

• Directivity: Omnidirectional
• Operating Voltage: 1.0 V to 10 V (Standard 2.0 V)
• Sensitivity: −42 ± 3 dB (0 dB = 1 V/Pa at 1 kHz)
• Frequency Range: 20 Hz to 16,000 Hz
• Impedance: Maximum 2.2 kΩ
• Signal-to-Noise Ratio (S/N): ≥ 58 dB
• Current Consumption: ≤ 0.5 mA

Mechanical Specifications:

• Housing Material: Aluminum Alloy (protects against EMI and RFI)
• Pin Material: Copper with Gold/Tin Plating for enhanced conductivity
• Mounting Type: Through-hole soldering
• Internal Filter: Includes a standard capacitor for RF noise suppression.

Dimensions:

• Diameter: ≈ 6.0 mm
• Height: ≈ 5.0 mm
• Pin Length: ≈ 4.0 mm
• Pin Pitch: ≈ 1.9 mm

Pinout and Wiring:

• Terminal 1 (Output/Positive): Connect this terminal to the audio pre-amplifier input via a DC blocking capacitor and supply DC power through a pull-up resistor.
• Terminal 2 (GND/Negative): Connect this pin directly to the common ground of your circuit. However, note that this terminal is typically connected to the microphone’s aluminum casing.
• Wiring Note: Use shielded cables for longer runs to prevent unwanted 50/60 Hz hum and electromagnetic interference.

Datasheet Reference:

• Download EM6050 Electret Condenser Microphone Datasheet

Commonly Used in:

• Voice Recognition Modules: Serving as the primary input sensor for AI and speech processing hardware.
• Handheld Communications: Integrated into walkie-talkies and portable radio systems for clear voice transmission.
• Consumer Electronics: Found in digital cameras, headsets, and hands-free car kits.

Applications:

• Smart Home Devices: Facilitating voice commands for smart speakers and security hubs.
• Audio Recording: Capturing high-fidelity sound for portable recorders and field monitoring equipment.
• Noise Level Indicators: Acting as a sensor for sound pressure level (SPL) meters and environmental noise monitoring.
• Intercom Systems: Providing the audio interface for residential and industrial building access control.

Equivalent Models:

• CUI Devices CMM-6050-42-P: A direct high-quality alternative offering similar sensitivity and dimensions.
• EM6050P Series: A variant with pin leads designed for specific vertical mounting requirements.
• WM-61A (Panasonic): A legacy model that users often replace with the EM6050 due to similar electrical characteristics.

Package Includes:

• 1 x 6*5mm EM6050 Capacitive Microphone