WM-55A103

Unidirectional Back Electret Condenser Microphone Cartridge WM-55A103 ●Unidirectional microphone for general use ●Suited to Hi-Fi sound and playback systems ■Appearance ■Dimensional Drawing Unit : mm 5.0 Term.1 Output Φ9.7 6-Φ1.0 Term.2 Ground FET Impedance converter ■Typical Frequency Response Curve １μF Output +Vs 680Ω Ground Rel at i v e Res pons e [ dB] ■Schematic Diagram +20 +10 0° 0 - 10 180° - 20 - 30 Mic Capsule ■Sensitivity （0dB=1V/Pa, 1kHz） 20 50 100 200 500 Fr equency Sensitivity Model No. -47+/-4dB WM-55A103 Specifications Dimensions Impedance Frequency Max operation voltage Standard operation voltage Current consumption Sensitivity reduction S/N ratio Specifications are subject to change without notice. 9.7 x 5.0 mm Less than 680 Ω Unidirectional (Cardioide) 100-12,000Hz 10V 1.5V Max 0.5mA Within -3dB at 1V More than 60dB 1k 2k 5k [ Hz] Vs=1.5V RL=680Ω 10k 20k