Additional Resources: Product Page 3D Model PCB Footprint date 10/15/2021 page 1 of 4 MODEL: CMC-2742PBJ-A DESCRIPTION: ELECTRET CONDENSER MICROPHONE FEATURES ominidirectional 6.0 mm diameter solder pins 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 0.4 mA signal to noise ratio (S/N) f = 1 kHz, 1 Pa, A-weighted 58 dBA dimensions 6.0 x 2.7 mm material AL terminal solder pins (gold plating) weight 0.17 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 270 280 290 C cuidevices.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Devices MODEL: CMC-2742PBJ-A DESCRIPTION: ELECTRET CONDENSER MICROPHONE date 10/15/2021 page 2 of 4 MECHANICAL DRAWING units: mm FREQUENCY RESPONSE CURVE APPLICATION CIRCUIT RL = 2.2 k C = 1 F cuidevices.com