EMKAY PRODUCT SPECIFICATION Doc: MD9745APA-1 This specification applies to the electret condenser microphone outlined within this document. Model Number: Dimensions: MD9745APA-1 Size: Directivity: Board Type: Capacitor(s) Ø 9.7 x 4.5 OMNI-DIRECTIONAL PIN 10pF (All dimensions are in mm) Electrical Specifications CHARACTERISTIC Directional Characteristic Electret Type Sensitivity Impedance Frequency Range Max input Sound Level Standard Operating Voltage Maximum operating Voltage Current Consumption Sensitivity Reduction S/N Ratio Capacitor(s) SPECIFICATION VALUES OMNI-DIRECTIONAL CHRG DIA/FOIL -41 dB ± 3.0 2.200 k Ω 100-10,000 Hz 120dB 2.0 V 10 V 0.500 mA Within -3dB at 1.5V More than 55 dB 10pF Frequency Response Curve EMKAY 1151 Maplewood Drive, Itasca, Illinois 60143 EMKAY Innovative Products A Knowles Electronics LLC Tel: 630-250-5100 Fax: 630-250-5932 NOTES (0dB=1 V/Pa, 1kHz) Less than Hz S.P.L. V V Max Schematic Diagram www.emkayproducts.com EMKAY PRODUCT SPECIFICATION Doc: MD9745APA-1 Polar Pattern: Polar plot shows reponce of unit at 1000 Hz. Environmental Specifications Note: After any of the following tests performed, the sensitivity of the microphone unit shall not deviate more than ±3dB from its initial value. The microphone shall maintain its initial operation and appearance. Operating Temperatur Storage Temperature: Humidity: Temperature Cycles: -25°C to +55°C -25°C to +50°C +40°C at 95%RH for 240 hrs After exposure at -25°C for 30 minutes, at+20°C for 10 minutes, at +60°C for 30 minutes, at +20°C for 10 minutes, 5 cycles. (The measurement to be done after 2 hrs of conditioning at +20°C.) Low Temperature: The microphone unit must operate within its sensitivity specifications after subjected to the following conditions: -25°C for 240 hrs, and exposed to room temperature for 2 hrs. High Temperature: The microphone unit must operate within its sensitivity specifications after subjected to the following conditions: +60°C for 240 hrs, and exposed to room temperature for 2 hrs. ESD: Vibration: 10kV The microphone to have no interferance in operation after vibrations, 10Hz to 55Hz for 1 minute full amplitude 1.52mm, for 2 hours at three axises. Impact: The microphone unit must operate when dropped three times once on each axis from a height of 1m onto a metal plate. Solder Pull: Not Applicable The information contained in this literature is based on our experience to date and is believed to be reliable and subject to change without notice. It is intended as a guide for use by persons having technical skill at their own discretion and risk. We do not guarantee favorable results or assume any liability in connection with its use. Dimensions contained herein are for reference purposes only. For specific dimensional requirements consult the factory. This publication is not to be taken as a license to operate under, or a recommendation to infringe any existing patents. This supersedes and voids all previous literature, etc. EMKAY 1151 Maplewood Drive, Itasca, Illinois 60143 EMKAY Innovative Products A Knowles Electronics LLC Tel: 630-250-5100 Fax: 630-250-5932 www.emkayproducts.com