CMC-9745-37T3

Additional Resources: Product Page | 3D Model date 08/05/2022 page 1 of 4 MODEL: CMC-9745-37T3 | DESCRIPTION: ELECTRET CONDENSER MICROPHONE FEATURES • unidirectional • high signal to noise ratio • terminal mount SPECIFICATIONS parameter conditions/description directivity unidirectional sensitivity (S) f = 1 kHz, 1 Pa, 0 dB = 1 V/Pa min typ max -40 -37 -34 standard operating voltage (Vs) 1.5 f = 1 kHz, 1 Pa sensitivity reduction (∆S-Vs) f = 1 kHz, 1 Pa, Vs = 1.5 ~ 1.0 Vdc 1.4 2.0 100 current consumption (IDSS) Vs = 1.5 Vdc, RL = 2.0 kΩ signal to noise ratio (S/N) f = 1 kHz, 1 Pa, A-weighted dimensions Ø9.7 x 4.5 material Al terminal solder pads 9 Vdc 2.6 kΩ -3 frequency (f) dB Vdc max operating voltage output impedance (Zout) units dB 12,000 0.4 72 Hz mA dBA mm weight 0.8 g operating temperature -20 70 °C storage temperature -20 70 °C RoHS Notes: yes 1. We use the “Pascal (Pa)” indication of sensitivity as per the recomendation of I.E.C. (International Electrotechnical Commission). The sensitivity of “Pa” will increase 20 dB compared to the “ubar” indication. Example: -60 dB (0 dB = 1 V/ubar) = -40 dB ( 1V/Pa) 2. All specifications measured at 5~35°C, humidity at 45~85%, under 86~106 kPa pressure, unless otherwise noted. SOLDERABILITY parameter conditions/description min typ max units hand soldering for maximum 2 seconds 310 320 330 °C cuidevices.com Additional Resources: Product Page | 3D Model CUI DEVICES | MODEL: CMC-9745-37T3 | DESCRIPTION: ELECTRET CONDENSER MICROPHONE MECHANICAL DRAWING units: mm tolerance: ±0.2 mm FREQUENCY RESPONSE CURVE MEASUREMENT CIRCUIT RL = 2.0 kΩ C = 1 µF cuidevices.com date 08/05/2022 | page 2 of 4 Additional Resources: Product Page | 3D Model CUI DEVICES | MODEL: CMC-9745-37T3 | DESCRIPTION: ELECTRET CONDENSER MICROPHONE PACKAGING units: mm Inner Box Size: 100 x 100 x 7 mm Middle Box Size: 205 x 105 x 50 mm Outer Box Size: 210 x 210 x 280 mm Inner Box QTY: 100 pcs per box Middle Box QTY: 1,000 pcs per box Outer Box QTY: 10,000 pcs per box cuidevices.com date 08/05/2022 | page 3 of 4 Additional Resources: Product Page | 3D Model CUI DEVICES | MODEL: CMC-9745-37T3 | DESCRIPTION: ELECTRET CONDENSER MICROPHONE date 08/05/2022 | page 4 of 4 REVISION HISTORY rev. description date 1.0 initial release 11/07/2016 1.01 brand update 01/17/2020 1.02 updated drawing 12/07/2021 logo, datasheet style update 08/05/2022 1.03 The revision history provided is for informational purposes only and is believed to be accurate. CUI Devices offers a one (1) year limited warranty. Complete warranty information is listed on our website. CUI Devices reserves the right to make changes to the product at any time without notice. Information provided by CUI Devices is believed to be accurate and reliable. However, no responsibility is assumed by CUI Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI Devices products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. cuidevices.com