Dimensions:φ9.7×6.7 (Unit: mm)
2、MEASUREMENT CIRCUIT
3、SPECIFICATIONS -40dB（0dB=1V/Pa）=-60dB（0dB=1V/цbar）
No. | Item | Standard |
1 | Sensitivity | -60±2dB（0dB=1V/Pa） |
2 | Output Impedance | ≤2.2KΩ |
3 | Directivity | Omnidirectional |
4 | Frequency Range | 20-16,000Hz |
5 | Operation Voltage | DC 1.0V-10V |
6 | Standard Power Supply | DC3.0 |
7 | Min Operation Voltage | 1.5V |
8 | Current Consumption | ≤0.5mA |
9 | Signal to Noise Ratio | ≥60dB |
4、ELECTRICAL SPECIFICATIONS
Test Condition (Vs=DC3.0V,RL=2.2kΩ Temp=20℃, Room Humidity=65%)
Item | Test Condition | Minimum | Standard | Maximum | Unit |
Sensitivity | f=1kHz,P=1Pa | -62 | -60 | -58 | dB |
Output impedance | f=1kHz, P=1Pa |
|
| 2.2k | Ω |
Directivity | f=1kHz, P=1Pa |
|
|
|
|
Current Consumption |
|
|
| 0.5 | mA |
Signal to Noise Ratio | f=1kHz, P=1Pa | 60 |
|
| dB |
Decreasing Voltage | f=1kHz, P=1Pa |
|
| -3 | dB |
Sound Pressure Level | f=1kHz | 110 |
|
| dB |
5、FREQUENCY RESPONSE ALLOWANCE RANGE
6、MECHANICAL SPECIFICATION
Weight | Less than:0.86g | |
Soldering Heat Shock | To be no interfere in operation after soldering heat shock, Temperature 260℃±5℃ for 3±0.5 seconds. | |
Terminal Mechanical Strength | To be no interfering in operation after pulled the terminal with 1kg strength for 1 minute. | |
Absolute maximum Ratings | Operating Voltage | 10V |
Storage temperature range | -25-+70℃ | |
Operating temperature range | -20-+60℃ | |
7、RELIABILITY TEST
Vibration Test | To be no interference in operation after vibration 10Hz to 50Hz for 1 minute full amplitude1 .52mm for 2 hour at three axises. |
Drop Test | To be no interference in operation after dropped to concrete floor each one Time from 1 meter height at three directions in state of packing. |
Temperature Test | 1、After exposure at 60℃ for 200 hours, sensitivity to be within ±3dB from initial sensitivity. (The measurement to be done after 2 hours of conditioning at 20℃) 2、After exposure at -25℃ for 200 hours, sensitivity to be within ±3dB from initial sensitivity. (The measurement to be done after 2hours of conditioning at 20℃) |
| After exposure at 60℃±2℃ and 90 to 95 % relative humidity for 200 hours, sensitivity to be within ±3dB from initial sensitivity. |
Temperature Cycle Test | After exposure at -25℃ for 30 minutes, at 20℃ for 10 minutes, at 70℃ for 30 minutes, at 20℃ for 10 minutes, 5 cycles, sensitivity to be within ±3dB from initial sensitivity. |
8、PART STOFF LIST
Item | Part Name | Material | Qty | Color | Supplier |
1 | Fixed Electrode | BRASS TYPE | 1 | Bright | CHINA |
2 | F.E.T | K596(B) | 1 | Black | CHINA |
3 | CASE | ALUMINIUN PLATES | 1 | Bright | CHINA |
4 | CLOTH | BLACK CLOTH | 1 | Black | CHINA |
5 | P.C.B | SINGLE-SIDE | 1 | NATURE | CHINA |
6 | DIAPHRAGM | IMPORTED PLATE (Ni or AU COATING) | 1 | Bright | DUPONT USA |
7 | PLASTIC HOLDER | ABS | 1 | Bright | CHINA |
8 | GAP SPACER | POLYESTER FILM | 1 | Red | CHINA |
