Microphone Cartridges Omnidirectional Electret
Condenser Microphone Cartridge
Series: WM-034B/034DB (pin type)
WM-034C/034D ■ Features ● Useful for almost any type telephone and other
applications ● Low operation voltage of 1.0V to 10V (2M-034D type)
● Microphone with pins for PCB (WM-034B/034DB type) ■ Sensitivity
WM-034B/034C WM-034DB/034D
X
Y
Z Vs = 4.5V
RL = 2.2kΩ –46±3dB
–42±3dB
–38±3dB M
H
P
R
U Vs = 1.5V
RL = 1.5kΩ –44±2dB
–42±2dB
–40±2dB
–38±2dB
–36±2dB ■ Specifications
Sensitivity See next page (0dB = 1V/pA, 1kHz) Impedance Less than 2.2k Ω [1.5k Ω] Directivity Omnidirectional Frequency 20–16,000 Hz Max. operation voltage 10V Standard operation voltage 4.5V [1.5V] Current consumption Max. 0.8mA [0.3mA] Sensitivity reduction Within –3dB at 3V …