NB-4022
Shape size: ∮4.0 x h2.2
Very small,thin type
Close talk characteristics effectively reduce ambient noice
Most suited to products having limited Space
Capacitor inside:
- 10pF(DECT, PHS, PCN, PCS.etc.)
- 33pF(GSM.PDS.etc.)
- 10pF+33pF(DECT, PHS, PCN,GSM,PDS.etc.)
Specifications:
- Sensitivity: See above(0dB = 1v / Pa, 1kHz)
- Impedance: Less than 2.2KΩ
- Directivity: Noise cancelling
- Frequency: 100-10,000Hz
- Max. operation voltage: 10.0V
- Standard operation voltage: 2.0V
- Current consumption: Max. 0.5mA
- Sensitivity reduction: Within-3dB at 1.5V
- S/N ratio: More than 50dB
- Shape size: ∮4.0 x h2.2