istartek VT600 VT900 specified 2.5 stereophonic straight head shield line -28dB Microphone

  • >=1 Pieces
    $2.00
Color:
Memory Capacity:
None
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Overview
Quick Details
Type:
Gps microphone
Use:
Connect to gps trackers
Screen Size:
no screen
Function:
Omnidirectional Electret Condenser Microphone
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
istartek
Model Number:
ZJ010MR-2M
Warranty:
1 Years
Product name:
ZJ010MR-2M micrphone
Color:
Black
Size:
39mm*24mm*16mm
Weight:
25g
Sensitivity:
-31~-25dB, normally -28dB
Output impedance:
0~22kΩ
Current Consumption:
0~500μA
Signal to noise ratio:
≥ 60dB
Decreasing Voltage:
≤ -3dB
Operating Voltage:
1.0~10.0V, normally 2.5V
Supply Ability
Supply Ability:
100000 Piece/Pieces per Year
Packaging & Delivery
Port
Shenzhen
Lead Time :
3 days after payment
Product Description

 

 

 

**Test condition: VS=3.0V  RL=2.2KΩ Ta=20±2 RH=65±5%

 

Measurement Circuit

 

Mechanical Characteristics

 

TEMPERATURE CONDITIONS

   4.1 Storage temperature range():-20~+70

   4.2 Operation temperature range():-10~+55

 

 

5.Reliability Test

After following tests the sensitivity to be within ±3dB, after 3 hours of conditioning at 20.

 

1.Vibration Test

To be no interference in operation after vibrations,10Hz to 55Hz for 1 minute full amplitude 1.52mm, for 2 hour at three axes.

 

2.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.

 

3.Temperature Test

a. After exposure at –20 for 200 hours, the sensitivity to be within ±3dB from the initial sensitivity.(The measurement to be done 4 hours of conditioning at 20)

b. Afrer exposure at -10for 200 hours, the sensitivity to be within ±3dB from the initial sensitivity. (The measurement to be done 4 hours of conditioning at 20)

 

4. Humidity Test

After exposure at 40 and 90~95% relative humidity for 200 hours, the sensitivity to be within ±3dB from the initial sensitivity. (The measurement to be done 4 hours of conditioning at 20)

 

5.Temperature Cycle Test

After exposure at -10 for 30 minutes, at 20 for 10 minutes, at +70 for 30 minutes, at 20for 10 minutes, 5 cycles, the sensitivity to be within ±3dB from the initial sensitivity. (The measurement to be done 4 hours of conditioning at 20)

 

 

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