Unidirectional Microphones

Cardioid ECM microphone capsules with frequency-boosted design, up to 83dB SNR, delivering focused sound pickup for clear voice and instrument clarity. Ideal for broadcasting, music systems, and professional OEM applications.

How to Get Started

1. Define Requirements

Share application, specifications, and use scenario

2. Engineering Review

Technical evaluation and model recommendation

3. Sample Evaluation

Engineering samples provided for application testing

4. Mass Production

Production after validation and specification confirmation

Directionality:
Omni-DirectionalUni-DirectionalBi-Directional
Diameter (Ø):
3mm4mm5.8mm6mm8mm9.7mm10mm14mm16mm25mm
Termination:
Surface MountPin TypeSolder Pads3 Solder PadsWire LeadsWire ConnectorSolder TabsWithout FET
25-36 of 71 Products
4mm Headset Microphone Capsule for Harman Headsets

4mm Headset Microphone Capsule for Harman Headsets

  • Model: ECM-B4017UL44-24742
  • Dimensions: 4 × 1.7 mm
  • Sensitivity: -44 dB ± 2
4mm Low Noise Electret Microphone Capsule with Pins

4mm Low Noise Electret Microphone Capsule with Pins

  • Model: ECM-B4015UP38-YL
  • Dimensions: 4 × 1.5 mm
  • Sensitivity: -38 dB ± 2
4mm Unidirectional Electret Microphone Capsule with Pins

4mm Unidirectional Electret Microphone Capsule with Pins

  • Model: ECM-B4015UP38-YL
  • Dimensions: 4 × 1.5 mm
  • Sensitivity: -38 dB ± 2
6mm Electret Instrument Microphone Capsule with Pins

6mm Electret Instrument Microphone Capsule with Pins

  • Model: ECM-B6027UP-47
  • Dimensions: 6 × 2.7 mm
  • Sensitivity: -47 dB ± 2
6mm Electret Microphone Capsule for Headset Mics

6mm Electret Microphone Capsule for Headset Mics

  • Model: ECM-B6050UL-B
  • Dimensions: 6 × 5 mm
  • Sensitivity: -46 dB ± 2
6mm Unidirectional Microphone Capsule for Lavalier and Conference Mics

6mm Unidirectional Microphone Capsule for Lavalier and Conference Mics

  • Model: ECM-B6027UL29-25674
  • Dimensions: 6 × 2.7 mm
  • Sensitivity: -29 dB ± 2
9.7mm Cardioid Dual-Chamber Microphone Capsule for KTV Karaoke

9.7mm Cardioid Dual-Chamber Microphone Capsule for KTV Karaoke

  • Model: ECM-F9750UL-48
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -48 dB ± 1
9.7mm Cardioid Electret Mic Capsule for Professional Headsets

9.7mm Cardioid Electret Mic Capsule for Professional Headsets

  • Model: ECM-B9750UL38-956U
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -38 dB ± 2
9.7mm Cardioid Electret Microphone for Automotive Use

9.7mm Cardioid Electret Microphone for Automotive Use

  • Model: ECM-B9750UP-45
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -45 dB ± 2
9.7mm Cardioid Electret Microphone Insert for KTV Karaoke

9.7mm Cardioid Electret Microphone Insert for KTV Karaoke

  • Model: ECM-F9750UL-47
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -47 dB ± 2
9.7mm Dual Damping Unidirectional Electret Microphone Element

9.7mm Dual Damping Unidirectional Electret Microphone Element

  • Model: ECM-B9745UL47-647
  • Dimensions: 9.7 × 4.5 mm
  • Sensitivity: -47 dB ± 2
9.7mm Electret Condenser Microphone Element for Headset Microphones

9.7mm Electret Condenser Microphone Element for Headset Microphones

  • Model: ECM-B9750MU48-3169
  • Dimensions: 9.7 × 5 mm
  • Sensitivity: -48 dB ± 2
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FAQs

Unidirectional microphones, also called cardioid microphones, focus pickup in the front direction, effectively reducing background noise. They are ideal for walkie-talkies, intercom systems, in-car voice input, conference microphones, and other scenarios that require clear voice capture.

Unidirectional microphones use front and rear sound holes to create a pressure gradient, picking up sound mainly from one direction. Omnidirectional microphones pick up sound evenly from all directions. Unidirectional mics work better in noisy environments, while omnidirectional mics are better for capturing ambient sounds.

ECM-B9750UP-45, a 9.7mm cardioid microphone designed for car stereo systems, effectively isolates noise, ideal for Bluetooth hands-free and voice control.

25mm cardioid microphones with high SNR, perfect for professional recording and live streaming:

Unidirectional microphones rely on front and rear sound holes to create the pressure gradient needed for directionality. Sealing these holes completely (to achieve IP67 waterproofing) would impair their function.
For more details, see: Waterproof Principles for Omnidirectional and Unidirectional Microphones
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