20 Hz ~ 20 kHz Analog Microphone Electret Condenser 3 V ~ 10 V Omnidirectional (-44dB ±2dB) PC Pins JLI 140A HD microphone microphone capsule

The CMA-4544PF-W is an electret condenser microphone designed for compact audio capture applications. It features high sensitivity, low noise characteristics, and stable frequency response, making it suitable for voice recording, communication devices, and embedded audio systems. The device integrates a permanently charged electret diaphragm with a built-in FET preamplifier, enabling reliable signal output with minimal external circuitry.

Key Features Electret condenser microphone element High sensitivity and signal-to-noise ratio Omnidirectional pickup pattern Compact, low-profile package Built-in FET impedance converter Stable performance over temperature range RoHS compliant Electrical Characteristics Operating Voltage: typically 2.0 V (range: 1.5 V to 10 V) Current Consumption: typically 0.5 mA Sensitivity: typically -44 dB ±3 dB (at 1 kHz, 0 dB = 1 V/Pa) Signal-to-Noise Ratio: typically 60 dB Output Impedance: typically 2.2 kΩ Frequency Response: 20 Hz to 16 kHz Acoustic Characteristics Directivity: Omnidirectional Maximum Sound Pressure Level: typically 110 dB SPL Equivalent Noise Level: typically 34 dB SPL Mechanical Characteristics Package Type: Through-hole cylindrical metal can Dimensions: approximately 4.5 mm diameter × 4.4 mm height Mounting Type: PCB through-hole Terminal Configuration: Two-pin (signal and ground) Environmental Specifications Operating Temperature Range: -20°C to +70°C Storage Temperature Range: -40°C to +85°C Applications Voice recording devices Mobile and handheld electronics Intercom and communication systems Embedded audio input modules IoT and consumer electronics Pin Configuration Pin 1: Output (Vout) Pin 2: Ground (GND / Case) Compliance RoHS compliant Suitable for general consumer electronics use

#commonpartslibrary #audio #microphone #analog #condenser