Pin-Type ECM Mic for Voice-Enabled Devices

A reliable, cost-effective pin-terminal electret condenser microphone featuring omnidirectional pickup, 62dB SNR, and voice-optimized frequency response (flat 50Hz–5kHz) for clear, intelligible voice capture in smart appliances, security systems, and consumer electronics.

Model: ECM-B4015AP36-787
Dimensions: 4 × 1.5 mm
Directivity: Omnidirectional
Sensitivity: -36 dB ± 2
Impedance: 2.2 kΩ
S/N Ratio: 62 dB
Max SPL: 100 dB
Operating Voltage: 2 Vdc
Frequency Response: 50 Hz ~ 10 kHz
Current Consumption: 500 μA

Request Information / Sample

Tell us your project stage. Our engineering team will respond accordingly.

Lead Time

Samples: 1–3 weeks
Mass production: 2–4 weeks

Customization

Application-based engineering support
Structure / sensitivity / acoustic tuning

MOQ

3,000–5,000 pcs
Per model / per production batch

Certification

RoHS & UL compliant
Industrial reliability assured

Overview

The ECM-B4015AP36-787 is a general-purpose back-electret condenser microphone designed for reliable voice capture in a wide range of consumer and industrial devices. Featuring a standard pin-terminal package for easy PCB integration and an omnidirectional pickup pattern, it delivers consistent audio performance with a sensitivity of -36±2dB and a signal-to-noise ratio of 62dB (Min.). The voice-optimized frequency response remains flat from 50Hz to 5kHz—perfectly aligned with the human voice spectrum—while the natural high-frequency roll-off above 5kHz helps reduce ambient noise and sibilance, ensuring clear, intelligible voice pickup for everyday applications. With a maximum SPL of 100dB (THD≤3%) and a wide operating voltage range of 1.0–10.0V DC, this microphone is a versatile, cost-effective solution for smart home appliances, security systems, and IoT devices.

Key Features

Standard Pin-Terminal Package – Easy PCB integration with through-hole soldering, compatible with automated assembly.
Omnidirectional Pickup Pattern – Captures sound uniformly from all directions.
Voice-Optimized Frequency Response – Flat 50Hz–5kHz for clear speech, with natural high-frequency roll-off to reduce ambient noise.
Reliable Sensitivity (-36±2dB) – Consistent output across all units.
Wide Operating Voltage (1.0–10.0V DC) – Compatible with a broad range of power supplies.
Low Current Consumption (≤500µA) – Ideal for battery-powered devices.
Proven Reliability – Rated for -30°C to +60°C with resistance to thermal shock, humidity, and vibration.

Technical Specifications

Model: ECM-B4015AP36-787
Directivity: Omnidirectional
Sensitivity: -36±2dB
Output Impedance: ≤2.2kΩ
Signal-to-Noise Ratio: 62dB (Min.)
Max SPL: 100dB (THD≤3%)
Frequency Response: Flat 50Hz–5kHz; roll-off above 5kHz
Operating Voltage: 1.0–10.0V DC
Standard Operating Voltage: 2.0V DC
Current Consumption: ≤500µA
Operating Temperature: -30°C ~ +60°C

Typical Applications

Smart Home Appliances – Voice control for air conditioners, range hoods, refrigerators, and smart lighting.
Security & Access Control – Audio pickup for video doorbells, intercoms, and surveillance cameras.
Consumer Electronics – Voice features in toys, educational devices, and handheld gadgets.
Industrial Equipment – Voice alert systems, public address interfaces, and communication terminals.
IoT & Smart Building – Voice-enabled sensors, smart switches, and home automation hubs.

Advantages

The ECM-B4015AP36-787 is a workhorse microphone designed for applications that demand reliable performance without unnecessary complexity. Its standard pin-terminal design simplifies PCB integration, while the voice-optimized frequency response ensures clear, intelligible speech capture—reducing ambient noise and sibilance where it matters most. With a wide operating voltage range, low power consumption, and a robust reliability rating, this microphone is the ideal choice for product designers seeking a proven, cost-effective voice input solution for high-volume consumer and industrial products.