Additional Resources: Product Page 3D Model date 04/24/2020 page 1 of 4 MODEL: CMI-5247TF-K DESCRIPTION: ELECTRET CONDENSER MICROPHONE FEATURES unidirectional 9.7 mm diameter solder pads SPECIFICATIONS parameter conditions/description min typ max units directivity unidirectional sensitivity (S) f = 1 kHz, 1 Pa, 0 dB = 1 V/Pa -50 -47 -44 dB standard operating voltage (Vs) 1.5 Vdc max operating voltage 10 Vdc output impedance (Zout) f = 1 kHz, 1 Pa 680 sensitivity reduction (S-Vs) f = 1 kHz, 1 Pa, Vs = 2.0 ~ 1.5 Vdc -3 dB frequency (f) 70 20,000 Hz current consumption (IDSS) Vs = 1.5 Vdc, RL = 680 0.5 mA signal to noise ratio (S/N) f = 1 kHz, 1 Pa, A-weighted 60 dBA dimensions 9.7 x 5.2 mm material AL terminal solder pads weight 0.72 g operating temperature -20 70 C storage temperature -20 70 C RoHS yes 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 2 0.5 seconds 310 320 330 C cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CMI-5247TF-K DESCRIPTION: ELECTRET CONDENSER MICROPHONE date 04/24/2020 page 2 of 4 MECHANICAL DRAWING units: mm 5.2 0.2 terminal 2 terminal 1 9.7 0.2 0.2 FREQUENCY RESPONSE CURVE APPLICATION CIRCUIT RL = 680 C = 1 F cuidevices.com