date 06/2010 page 1 of 4 DESCRIPTION: ELECTRET CONDENSER MICROPHONE PART NUMBER: CME-1538-100LB SPECIFICATIONS parameter conditions/description directivity omnidirectional sensitivity f= 1 KHz, 1Pa 0 dB= 1 V/Pa min nom max -41 -38 -35 dB 2 10 V dc operating voltage output impedance f= 1 KHz, 1Pa sensitivity reduction f= 1 KHz, 1Pa Vs=2 V dc to 1.5 V dc frequency 2.2 KΩ -3 dBA 20 current consumption Vs=2 V dc RL=2.2 KΩ signal to noise ration f= 1 KHz, 1 Pa A weighted units 20,000 Hz 0.5 mA 58 dBA operating temperature -30 80 °C storage temperature -30 80 °C 0.1 g dimenstions ø4 x H1.5 mm weight material brass (Au plating) terminal wire type RoHS yes dustproof/waterproof level IP67, IEC standard 529 edition 2.0 (1989) APPEARANCE DRAWING 2.9 0.114 MAX 1.5 0.059 0.2 red (+) black (-) 4.0 0.157 0.15 100.0 3.937 4.0 (2 PLCS) 1.0 0.039 0.5 (2 PLCS) TOLERANCE: ±0.2mm UNLESS OTHERWISE SPECIFIED 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.cui.com date 06/2010 page 2 of 4 PART NUMBER: CME-1538-100LB DESCRIPTION: ELECTRET CONDENSER MICROPHONE FREQUENCY RESPONSE CURVE ˃ ˀ˄˃ ˀ˅˃ ˀˆ˃ ˀˇ˃ ˀˈ˃ ˀˉ˃ ˀˊ˃ ˀˋ˃ ˄˃˃ ˄˃˃˃ ˄˃˃˃˃ MEASUREMENT CIRCUIT 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.cui.com ˄˃˃˃˃˃ date 06/2010 page 3 of 4 DESCRIPTION: ELECTRET CONDENSER MICROPHONE PART NUMBER: CME-1538-100LB MECHANICAL CHARACTERISTICS item test condition evaluation standard soldering heat resistance Stripped wires are immersed in rosin for 5 seconds and then immersed in solder bath of 270 ±5°C for 3 ±0.5 seconds. 90% min. stripped wires should be wet with solder (except edge of terminal). PCB wire pull strength The force of 4.9 N is applied for 30 sec. to double lead wire. No damage or cutting off. vibration test The microphone 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 microphone without packaging is subjected to 3 drops on each axis from the height of 100 cm onto a 20 mm thick wooden board. The sensitivity should be within ±3dB compared with the initial measurement. ENVIRONMENT TEST item test condition evaluation standard high temperature test After being placed in a chamber at +80°C for 1 hour. low temperature test After being placed in a chamber at -30°C for 1 hour. humidity test After being placed in a chamber at +40°C and 90 ±5% RH for 240 hours. temperature cycle test The part will be subjected to 10 cycles. One cycle will consist of: +80к +25к +25к -30к 1hr 0.5hr 1hr 0.5hr 1hr 0.5hr The microphone will be measured after being placed at +25°C for 6 hours. The value of the oscillation frequency should be ±10% compared to the initial measurements. The SPL should be within ±3dB compared to the initial measurements. 1hr 5.5 hrs 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 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.cui.com date 06/2010 page 4 of 4 PART NUMBER: CME-1538-100LB DESCRIPTION: ELECTRET CONDENSER MICROPHONE PACKAGING 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2383 www.cui.com