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date 06/07/2019
page 1 of 6
SERIES: CMEJ-4618-42-LX │ DESCRIPTION: ELECTRET CONDENSER MICROPHONE
FEATURES
• omnidirectional
• low profile
• multiple lead wire lengths available
ELECTRICAL
parameter
conditions/description
omnidirectional
min
typ
max
units
directivity
sensitivity (S)
at 1 kHz (0 dB = 1 V/Pa)
-45
1.0
-42
2.0
-39
10
dB
V
supply voltage (VDD)
current consumption
sensitivity reduction
frequency (f)
VDD = 2.0 V, RL = 2.2 kΩ
0.5
mA
dB
Hz
VDD = 2.0 ~ 1.5 V
3
100
10,000
signal to noise ratio (S/N)
at 1 kHz, Pin = 1 Pa (A-weighted)
60
dBA
at 94 dB SPL, 1 kHz
at 115 dB SPL, 1 kHz
1
3
%
%
total harmonic distortion (THD)
acoustic overload point (AOP)
output impedance (Zout)
at 1 kHz
at 1 kHz
115
2.2
dB SPL
kΩ
Notes:
1. All specifications measured at 20±2°C, humidity at 60~70%, unless otherwise noted.
ENVIRONMENTAL
parameter
conditions/description
min
-40
-40
30
typ
max
70
units
°C
operating temperature
storage temperature
operating humidity
storage humidity
hand soldering
85
°C
non-condensing
non-condensing
for 1~3 seconds
yes
85
%
30
75
%
340
350
360
°C
RoHS
PART NUMBER KEY
CMEJ-4618-42-L XXX
Base Number
Wire Length:
008 = 8 mm
010 = 10 mm
012 = 12 mm
015 = 15 mm
120 = 120 mm
177 = 177 mm
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