Additional Resources: Product Page 3D Model date 01/15/2020 page 1 of 4 MODEL: CMC-9745-130T DESCRIPTION: ELECTRET CONDENSER MICROPHONE FEATURES high AOP of 130 dB omnidirectional 9.7 mm diameter solder terminals IP67 rated SPECIFICATIONS parameter conditions/description min typ max units directivity omnidirectional sensitivity (S) f = 1 kHz, 1 Pa, 0 dB = 1 V/Pa -45 -42 -39 dB standard operating voltage (Vs) 2 Vdc max operating voltage 10 Vdc output impedance (Zout) f = 1 kHz, 1 Pa 2.2 k sensitivity reduction (S-Vs) f = 1 kHz, 1 Pa, Vs = 2.0 ~ 1.5 Vdc -3 dB frequency (f) 100 20,000 Hz current consumption (IDSS) Vs = 2.0 Vdc, RL = 2.2 k 0.5 mA signal to noise ratio (S/N) f = 1 kHz, 1 Pa, A-weighted 60 dBA acoustic overload point (AOP) at 1 kHz, THD <10% 130 dB SPL total harmonic distortion at 1 kHz, 94 dB SPL 1 % dimensions 9.7 x 4.5 mm material Al terminal solder pads weight 0.80 g operating temperature -20 70 C storage temperature -20 70 C RoHS yes IP level IP67 (IEC standard 529 edition 2.0 (1989)) Notes: 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 5~35C, 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 340 350 360 C cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CMC-9745-130T DESCRIPTION: ELECTRET CONDENSER MICROPHONE date 01/15/2020 page 2 of 4 MECHANICAL DRAWING units: mm tolerance: 0.20 mm FREQUENCY RESPONSE CURVE MEASUREMENT CIRCUIT RL = 2.2 k C = 1 F cuidevices.com