- Soberton Inc.

Specification of
Electret Condenser Microphone
[RoHS Compliance]
Model No.:
Date:
EM4015-BC
JUN
05
2013
APPROVER
CHECKER
DESIGN
GUOFENG
HU
CHANG FU
GANG
XIA YING BO
Customer Name:
Customer Model No.:
APPROVER
CHECKER
DESIGN
Please kindly make approval of our samples, And return this form
by fax or E-mail, Thanks for your kind attention and cooperation.
SOBERTON, INC.
211 North First Street
Minneapolis,
MN. 55401
Tel:612-849-6205 / Fax:952-933-3120
www.soberton.com
/ mailto:info@soberton.com
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Type: Omni directional Back Electret Condenser Microphone
Model Number: EM4015-BC
1. Electrical Characteristics
No
Parameter
(Temperature =20±2℃
Symbol
1.1
1.2
1.3
Sensitivity
Output impedance
Current Consumption
S
Z out
IDSS
1.4
Signal to Noise Ratio
S/N
1.5
1.6
1.7
Decreasing Voltage
Operating Voltage
Maximum input S.P.L
ΔS
Humidity=65±5%)
Condition
Min.
0dB=1V/Pa,at 1kHz
f=1kHz
VCC =2.0V,RL=2.2KΩ
at 1kHz S.P.L=1Pa
(A-Weighted Curve)
VCC=3.0V to2.0V
-51
Limits
Center Max.
-48
-45
2.2
500
Unit
dB
KΩ
µA
58
dB
-3
10
115
1.0
dB
V
dB
2. Typical Frequency Response Curve
Frequency Response
Microphone Response Tolerance Window
Frequency(Hz)
Lower Limit(dB)
Upper
Limit(dB)
50
100
800
1000
1200
3000
5000
12000
-6
-3
-3
0
-3
-3
-3
-8
+3
+3
+3
0
+3
+8
+8
+8
3. Circuit Diagram
RL=2.2KΩ
VS =2.0V
C1=10PF
C2=33PF
C=1µF
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4. Measurement Setup Drawing
5. Appearance And Dimension
Unit: mm
6. Material And Structure
10
Capacitor
9
FET
8
PCB
1
7
Copper ring
1
6
Chamber
1
5
Electret Plate
1
4
Spacer
1
3
Diaphragm
1
2
Case
Copper
1
Dustproof gauze
Waterproof
cloth
1
Name
material
QTY
1
No.
1
10+33pf
Remark
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7. Temperature Conditions
Storage Temperature Range
Operation Temperature Range
-40℃ ~ +85℃
Note: Store in electronic warehouse.
-40℃
~
+85℃
8. Terminal Mechanical Strength
Terminal should be no interference in operation after pulled the terminal with 1kg for 1 minute.
9. Reliability Test
After each of following test, the sensitivity of the microphone should be within ±3dB of initial sensitivity after
3hours of conditioning at 20℃.
1. Vibration Test
Frequency
: 10Hz~55Hz
Amplitude
: 1.52mm
Change of Frequency : 1 octave/min
2 hours in each of axes
2. High Temperature Test
+85℃ for 240 hours.
3. Low Temperature Test
-40℃ for
240 hours.
4. Humidity Test
90%~95%RH,+60℃ for 240 hours.
5. Thermal shocking test
–40°C, 30 minutes ↔ +80°C, 30 minutes, repeated 32 cycles → room temperature, 3 hours.
6.Temperature Cycles
-40℃
(2h) (0.5h)
+20℃
(2h)
+85℃
(0.1h) (2h)
(0.5h)
+20℃
(2h)
-40℃
(0.5h) (2h) for 5 cycles.
7. Packing Drop Test
Height:1.5m
Procedure: 5 times from each of axes
8. Electrostatic discharge
Tested to IEC61000-4-2 level 3:
a) Contact discharge
The microphone shall operate normally after 10 discharges to is 6KV DC and the discharge network is 150pF
and 330Ω.
b) Air discharge
The microphone shall operate normally after 10 discharges to is 8KV DC and the discharge network is 150pF
and 330Ω
10. Soldering Condition
1. We suggest using anti-static welding machine which can control soldering temperature automatically.
2. Soldering temperature should be controlled under 320℃ and soldering time for each terminal should be 1~2
sec..
3. Microphone should be fixed on the metal block (heat sink), which has high radiation effects, and heat sink shall
contact with MIC tightly.
4. Microphone may easily be destroyed by the static electricity and the countermeasure for eliminating the static
electricity shall be executed (worktable and human body shall be ground connection)
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5
Heat Sink
Shape of heat sink
Shape of hole at fixed part
11. Code Explanation
NAME
EXPLANATION
Omni-directional Microphone
Back Electret
D=4.0mm
T=1.5mm
Pcb version 3
Dash
Sensitivity –48±3dB
Test Condition 2.2KΩ/2.0V
Dash
Welding Point Style Mic.
Capacitance:10+33PF
Dash
NO Rubber
Dash
No especial require
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Packing
12. Packing
chart
1. MODEL NUMBER :
EM4015-BC
2. DIMENSION:(LENGTH*WIDTH *HEIGHT)
2.1 Anti-Static Bag:
80mm*80mm*2mm
2.2 SMALL PACKET
80mm*80 mm*10mm
2.3 MIDDLE BOX:
175mm*85mm*50mm
2.4 CARTON SIZE:
550mm*230mm*235mm
3. QUANTITY AND WEIGHT
3.1 100PCS/SMALL BOX
3.2 1000PCS/MID BOX
3.3 30000PCS/CARTON
3.4 1PC=0.1g
3.5 NET WEIGHT:3.0kg
3.6 GROSS WEIGHT:7.0kg
X1
100PCS
4. LABEL STIPULATION
4.1 CONTENTS SHOULD BE SEEN CLEAR.
1000PCS
X30
30000PCS
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