Electret Condenser Microphones
Date:
11/17/08
Dimensions: mm (
in.)
Part Numbers:
256-EM2700
256-EM2702
256-EM2704
256-EM2706
256-EM2708
C/P/T
C/P/T
C/P/T
C/P/T
C/P/T
Terminal
2.7 ± .1
(.106 ± .004)
Term 1
6 ± .10
(.236 ± .004)
Term 2
Electret Condenser Microphones
Contact
Pin
2.7 ± .10
(.106 ± .004)
Term 1
6 ± .10
(.236 ± .004)
ø2.8 ± .10
(ø.11 ± .004)
2.7 ± .1
(.106 ± .004)
Term 2
1.9 ± .30
(.075 ± .012)
Term 1
1 ± .20
(.039 ± .008)
Term 1
+
C
Output
+Vs
Term 2
-Ground
Green
ø1 ± .10
(ø.039 ± .004)
6 ± .10
(.236 ± .004)
Term 2
FET impedance
converter
ECM
unit
33pF
/10pF
Shield case
RL
KT-400118
Mouser
Stock No.
256-EM2700
256-EM2702
256-EM2704
256-EM2706
256-EM2708
C/P/T
C/P/T
C/P/T
C/P/T
C/P/T
Sensitivity (dB)
-38
-40
-42
-44
-46
±
±
±
±
±
3
3
3
3
3
Note:
C - Contact Type
P - Pin Type
T - Terminal Type
Electrical Specifications:
• Operating voltage (VDC): 2
• Impedance (Ω): 2.2K
• Rated voltage (VDC): 10
• Sensitivity reduction (dB): -3dB @ f=1KHz, 1PaVs=2.0VDC to 1.5VDC
• Frequency range (Hz): 20 ~ 20,000
• Max. current consumption (mA): 0.5 @ Vs=2.0VDC, RL=2.2KΩ
• SIN rate (dBA): 56
Available from Mouser Electronics
www.mouser.com
(800) 346-6873
Specifications are subject to change without notice. No liability or warranty implied by this information. Environmental compliance based on producer documentation.
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