Compact Electret Condenser Microphone (4 mm x 1.5 mm)🎤

This miniature electret condenser microphone delivers high-quality audio capture with strong resistance to vibration and an excellent signal-to-noise ratio. Ideal for space-constrained designs, it integrates seamlessly into Arduino, Raspberry Pi, and other microcontroller-based projects when paired with a simple bias and preamplifier stage.

✨ Key Features

• Ultra-compact 4 mm x 1.5 mm form factor for wearables and tight enclosures.
• Wide 50–20,000 Hz frequency range for clear voice and general audio applications.
• Superior vibration resistance for stable performance in mobile or robotic systems.
• Flexible 1.5–10 V operating voltage for easy biasing.
• Great for Arduino, Raspberry Pi, and electronics modules with an appropriate preamp.

📐 Technical Specifications

• Dimensions: 4 mm x 1.5 mm
• Leg pitch range: 1.4 mm
• Sound power: 60 dB
• Sensitivity: 30–60 dB
• Frequency range: 50–20,000 Hz
• Current withstand: 150–500 mA
• Voltage rate (operating): 1.5–10 V

🧩 Typical Applications

• Voice detection and audio sensing for IoT devices
• Wearable electronics and portable recorders
• STEM education kits, prototyping, and DIY electronics components
• Robotics and environmental sound monitoring

🛠️ Integration Notes

This analog microphone element requires a bias network and amplification before connecting to an ADC or GPIO on a microcontroller:

• Bias through a resistor (e.g., 2.2 kΩ–10 kΩ) to a supply within 1.5–10 V.
• AC-couple the output with a capacitor (e.g., 0.1–1 µF) to your preamp or ADC input.
• Use a low-noise preamplifier (op-amp or audio codec) for optimal signal-to-noise ratio.
• Mount with care to minimize mechanical noise and ensure consistent performance.

📦 What’s Included

• 1 × Compact Electret Condenser Microphone (4 mm x 1.5 mm)

⚠️ Notes

All specifications are listed as provided. For precise design limits and recommended operating conditions, consult the manufacturer’s datasheet. When interfacing with Arduino or Raspberry Pi, a suitable preamplifier circuit is required to condition the microphone signal.