CMA-4544PF-W

Additional Resources: Product Page | 3D Model | PCB Footprint date 08/05/2022 page 1 of 4 MODEL: CMA-4544PF-W | DESCRIPTION: ELECTRET CONDENSER MICROPHONE SPECIFICATIONS parameter conditions/description directivity omnidirectional sensitivity (S) f = 1 kHz, 1 Pa, 0 dB = 1 V/1 Pa min typ max units -46 -44 -42 dB 3 10 Vdc operating voltage output impedance (Zout) f = 1 kHz, 1 Pa 2.2 sensitivity reduction (∆S-Vs) f = 1 kHz, 1 Pa, Vs = 3.0 to 2.0 Vdc -3 frequency (f) 20 current consumption (IDSS) Vs = 3.0 Vdc, RL = 2.2 KΩ signal to noise ratio (S/N) f = 1 kHz, 1 Pa, A-weighted KΩ dB 20,000 0.5 Hz mA 60 dBA operating temperature -20 70 °C storage temperature -20 70 °C 0.8 g dimension ø9.7 x 4.5 mm weight material Al terminal pin type (hand soldering only) RoHS yes Note: 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 20dB compared to the “ubar” indication. Example: -60dB (0dB = 1V/ubar) = -40dB (1V/Pa) MECHANICAL DRAWING MEASUREMENT CIRCUIT unit: mm RL = 2.2 KΩ ŇņŕġŊŮűŦťŢůŤŦ ŤŰůŷŦųŵŦų ŕŦųŮįIJ ńľIJŶŇ œō ņįńįŎį ŶůŪŵ ŔũŪŦŭťġńŢŴŦ Schematic Diagram cuidevices.com ŐŶŵűŶŵ ĬŗŴ ŕŦųŮįij ĮňųŰŶůť Additional Resources: Product Page | 3D Model | PCB Footprint CUI DEVICES | MODEL: CMA-4544PF-W | DESCRIPTION: ELECTRET CONDENSER MICROPHONE date 08/05/2022 | page 2 of 4 FREQUENCY RESPONSE CURVE ijı IJı ĩťŃĪ ı ĮIJı Įijı ĮĴı ijı Ķı IJıı ijıı Ķıı IJŌ ijŌ ĶŌ IJıŌ ijıŌ ĩʼnŻĪ 1.000V/PA MECHANICAL CHARACTERISTICS item test condition evaluation standard soldering heat resistance Soldering iron of +270 ±5°C should be placed on the terminal for 2 ±0.5 seconds. No interference in operation. terminal mechanical strength Apply to the terminal 4.9 N (0.5 kg) for 30 seconds No damage or cutting off. vibration test The part should be measured after a vibration amplitude of 1.5 mm with 10~55 Hz band of vibration frequency to each of the 3 perpendicular directions for 2 hours. drop test The part without packaging is subjected to 3 drops on each axis from the height of 1 m onto a 20 mm thick wooden board. After any tests, the sensitivity should be within ±3 dB of the initial sensitivity. ENVIRONMENT TEST item test condition high temperature test After being placed in a chamber at +70°C for 72 hours. evaluation standard low temperature test After being placed in a chamber at -20°C for 72 hours. thermal shock After being placed in a chamber at +40°C and 90 ±5% RH for 240 hours. The part will be subjected to 10 cycles. One cycle will consist of: After any tests and 6 hours of conditioning at +25°C, the sensitivity should be within ±3 dB of the initial sensitivity. temperature cycle test TEST CONDITIONS standard test conditions a) Temperature: +5 ~ +35°C b) Humidity: 45 ~ 85% c) Pressure: 860 ~ 1060 mbar judgement test conditions a) Temperature: +25 ±2°C b) Humidity: 60 ~ 70% c) Pressure: 860 ~ 1060 mbar cuidevices.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI DEVICES | MODEL: CMA-4544PF-W | DESCRIPTION: ELECTRET CONDENSER MICROPHONE PACKAGING cuidevices.com date 08/05/2022 | page 3 of 4 Additional Resources: Product Page | 3D Model | PCB Footprint CUI DEVICES | MODEL: CMA-4544PF-W | DESCRIPTION: ELECTRET CONDENSER MICROPHONE date 08/05/2022 | page 4 of 4 REVISION HISTORY rev. description date 1.0 initial release 06/01/2008 1.01 new template applied, updated drawing 09/24/2013 1.02 brand update 01/17/2020 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