Microphone Cartridges
Omnidirectional Electret Condenser Microphone Cartridge
Series:
WM-034B/034DB (pin type) WM-034C/034D
G Low operation voltage of 1.0V to 10V (2M-034D type) G Microphone with pins for PCB (WM-034B/034DB type)
I Features
G Useful for almost any type telephone and other applications
I Sensitivity
WM-034B/034C Vs = 4.5V RL = 2.2kΩ X Y Z –46±3dB –42±3dB –38±3dB WM-034DB/034D Vs = 1.5V RL = 1.5kΩ M H P R U –44±2dB –42±2dB –40±2dB –38±2dB –36±2dB
I Specifications
Sensitivity Impedance Directivity Frequency Max. operation voltage Standard operation voltage Current consumption Sensitivity reduction See next page (0dB = 1V/pA, 1kHz) Less than 2.2k Ω [1.5k Ω] Omnidirectional 20–16,000 Hz 10V 4.5V [1.5V] Max. 0.8mA [0.3mA] Within –3dB at 3V [(M.H.): Within –3dB at 1V] [(P.R.U.): Within –2dB at 1V] More than 60dB
S/N ratio
I Typical Frequency Response Curve
+20 Relative Response (dB) +10 0 –10 –20 –30 20
50
100
200
500 1000 Frequency (Hz)
2000
5000
10000 20000
I Dimensions in mm (not to scale) WM-034B/034DB
6.7 4.5 2.0 Term 1 output ø9.7 2.54 ø9.7
WM-34C/034D
6.7 2.0 Term 1 output
Term 2 ground
Term 2 ground
Design and specifications are subject to change without notice. Ask factory for technical specifications before purchase and/or use. Whenever a doubt about safety arises from this product, please contact us immediately for technical consultation.
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