Data Sheet

Challenge Electronics
95 East Jefryn Boulevard
Deer Park, NY 11729
Tel: [phone]
1-631-595-2217
Fax: [phone]

ISO 9001:2000
 ISO 14001:2004

ISO/TS 16949:2002
RoHS
COMPLIANCE
Lead Free
EMAIL: [e-mail] WEB: WWW.CHALLENGEELECTRONICS.COM
The information contained herein is believed to be correct, but no guarantee or warranty, express or implied,
with respect to accuracy, completeness or results is extended and no liability is assumed.
Challenge Electronics reserves the right to make changes in any specification, data or material contained herein.
Copyright © 2010 Challenge Electronics
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PRODUCT INFORMATION
PART #
CEM-C9745JAD462P2.54R
Revision 0-2010
Omni-Directional Foil Electret Condenser Microphone
DESCRIPTION
Omni-Directional Foil Electret Microphone, 9.7 mm diameter and 4.5 mm high, Power Supply 5.0 V max, External
Resistance Loading of 680 , and sensitivity of -44 dB. Terminated with 2 solder points, Lead Free RoHS Compliant
SPECIFICATIONS:
Direction
Omni Directional Foil Electret
Minimum Direction sensitivity
Operating Voltage Range
Vs= 1.0 Vdc ~ 10.0 Vdc
Power Supply ( Vs )
1.5 V
Frequency Range
100 ~ 10,000 Hz.
Maximum Current
0.5 mA
Sensitivity
- 46 ± 2.0, ( 0 dB = 1V / Pa ) at 1K Hz.
Minimum Sensitivity to Noise Ratio
58 dB
Sensitivity Reduction
3.0 V to 2.0 V -3 dB
Maximum input S.P.L.
110 dB at 1.0 KHz, THD <1%
Operating Temperature
-20ºC to + 60ºC
Storage Temperature
-40ºC to + 75ºC
Loading Resistance (RL)
External, 680 Ω at Vs = 1.5 V, Max. 2,200 Ω
Built in Capacitors
None
Termination
PC Pins, 4.5 mm Long, 0.6 mm Ø, 2.54 mm Spacing
Dimensions Length / Diameter
9.7 mm Ø
Height
4.5 mm
Housing Material
Al-Mg Alloy.
Color
Approximate Weight
0.7 grams
Options Compliance
RoHS, Lead Free
Reliability
Thermal Operating Cycle Test
250 hours continuous operation
at Rated Power, at Maximum Rated Operating Temperature *
250 hours continuous operation at Rated Power, at Minimum Rated Operating Temperature *
Thermal Storage Cycle Test
Parts are subjected to 250 hours storage at Maximum Rated Storage Temperatures *
Parts are subjected to 250 hours storage at Minimum Rated Storage Temperatures *
Thermal Shock Test:
Parts are subjected to five (5) cycles of Minimum and Maximum
Operating Temperature. Each cycle shell be set per diagram below
and is three (3) hours long *
Humidity Test
Parts are subjected to 240 Hours at +40°C±2°C. 90-95% RH *
Vibration Test
Parts are subjected to 2 Hours of at 1.5 mm with 10 to 55 Hz. vibration frequency to each of 3 perpendicular
directions *
Drop Test
Parts are dropped naturally from 1 meter height onto the surface of 40 mm wooden board, 2 axes (X,Y) directions, 3
times (6 times total) *
Reliability Test Performance
*
Parts should conform to original performance within ±5 dB tested with Rated Power, after 3 hours of
recovery period.
Termination Strength
Terminals should withstand a 1.0 Kg. pull test for up to 1 minute.
Life Test
At rated voltage in room temperature continuously for 1,000 hours
Warranty
For a period of one (1) year from date of shipping under normal operations conditions
Typical Frequency Response
Microphone Response Toll
Window
Dimensions Units in: mm Tolerance: ±0.3 mm
Frequency
(Hz)
Lower
Limit
(dB)
Upper
Limit
(dB)
50 -6 +3
100 -3 +3
800 -3 +3
1000 0 0
1200 -3 +3
3000 -3 +8
5000 -3 +8
10000 -8 +8