CMC-9745-37T2 Datasheet, PDF (1/4 Pages) CUI INC – ELECTRET CONDENSER MICROPHONE

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date 11/07/2016
page 1 of 4
MODEL: CMC-9745-37T2 │ DESCRIPTION: ELECTRET CONDENSER MICROPHONE
FEATURES
• unidirectional
• high signal to noise ratio
• terminal mount
SPECIFICATIONS
parameter
conditions/description
min
typ
max
units
directivity
unidirectional
sensitivity (S)
f = 1 kHz, 1 Pa, 0 dB = 1 V/Pa
-40
-37
-34
dB
standard operating voltage (Vs)
1.5
Vdc
max operating voltage
9
Vdc
output impedance (Zout)
f = 1 kHz, 1 Pa
1.4
2.0
2.6
kΩ
sensitivity reduction (∆S-Vs)
f = 1 kHz, 1 Pa, Vs = 1.5 ~ 1.0 Vdc
-3
dB
frequency (f)
100
12,000
Hz
current consumption (IDSS)
Vs = 1.5 Vdc, RL = 2.0 kΩ
0.4
mA
signal to noise ratio (S/N)
f = 1 kHz, 1 Pa, A-weighted
69
dBA
dimensions
Ø9.7 x 4.5
mm
material
Al
terminal
solder pads
weight
0.8
g
operating temperature
-20
70
°C
storage temperature
-20
70
°C
RoHS
2011/65/EU
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 5~35°C, humidity at 45~85%, under 86~106 kPa pressure, unless otherwise noted.
SOLDERABILITY
parameter
hand soldering
conditions/description
for maximum 2 seconds
min
typ
max
units
310
320
330
°C
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