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Humidity sensor SJL31SY

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Humidity sensor SJL31SY

编号
SJL31SY.
没有此类产品
产品描述

1.Applications

This specifications is applied to relative humidity sensor Type SJL31SY.

Guaranteed impedance   31kΩ at 25℃,60%RH

 

2.Ratings & electronic characteristics

Supply voltage: Less than AC5.0V  AC1.0V is recommended. 

Test wave shape: Sine or square wave shape. With frequency 500~2,000Hz ,1kHz is recommended. 

Power consumption: Less than 2mW 

Humidity range: 20-95%RH(in operation)  10-95%RH(in storage) 

Temperature range: 0-50℃(in operation)   -20-70℃(in storage) 

Hysteresis: <2%RH

Response time   

moisture absorption time : <15S

moisture doffing time : <20S

Stability : <2%RH Per year

Interchangable characteristics: (-3%RH~3%RH)

Water tolerent: <3%RH accuracy variation when dipping into water for 30minute, widely used in dewing occasions.

 

Typical humidity sensor Characteristics: See following table 1

 

3.Outline Dimensions (Unit:mm) 

1-Leads to the foot  2-Ceramic substrate  3-Interdigital electrodes  4-Feeling wet film
Description: Small substrate (5 × 7mm pin spacing: 2.54mm)

 

4.Typical humidity sensor Characteristics(table 1)

 

5.Packing

(1) 100PCS of sensor are placed in a tray

(2) 20sheets to be packed in a small carton box(SIZE:L190*W150*H55mm)

(2,000PCS of sensor in a unit box)

(3) 16 small boxes to be packed in larager box(SIZE:L340*W390*H240mm)

(32,000PCS of sensor in a lager box)

 

6.Mechanical durability

Drop test (Dropped onto wooden plate from a height of 1m, 3 times)

Passed

Vibration test (Amplitude of 5mm, X, Y, Z directions, 10Hz for 20 min.)

Passed

Tensile strength of lead wire (Pulled with 1kg load for 10 sec.)

Passed

Lead wire bending test(lead wire was bended to 90 degrees with 250g load, and bended again to opposite direction.)

Passed 

 

7.Reliability 1 (Temperature and humidity test)

Sensors were tested/stored in the conditions described below respectively, and the humidity characteristics at 25℃,60%RH before test and after test were inspected, and described in the following.

Test conditions

Variation

1

Sensors are stored in high temperature(80℃) for 1,000 hrs.

<±5%RH

2

Sensors are stored in low temperature(-20℃) for 1,000 hrs.

<±5%RH

3

Sensors are stored in high temperature and high humidity (50℃,90%RH) for 1,000 hrs.

<±5%RH

4

Sensors are stored in low humidity (25℃, less than 15%RH) for 1,000 hrs.

<±5%RH

5

Sensors are energized in high temperature(80℃) for 1,000 hrs. Supply voltage is AC1.0V, 1kHz.

<±5%RH

6

Sensors are energized in high temperature and high humidity (50℃,90%RH) for 1,000 hrs. Supply voltage is AC1.0V, 1kHz.

<±5%RH

7

200 cycles of dewing condition for 10 minutes – drying condition for 10 minutes.

<±5%RH 

 

8.Reliability 2 (Organic solvent vapor, corrosive gases test)
 

Test conditions

 Variation

1 Methanol (1000ppm, 100 hrs.)

 <±5%RH  

2 Ethanol (1000ppm, 100 hrs.)  

 <±5%RH  

3 Ammonia (1000ppm, 100 hrs.)

 <±5%RH  

4 Acetic acid (1000ppm, 100 hrs.)  

 <±5%RH  

5 Mixed solvents (Benzene 3 : Toluene 3:  

Xylene 4, 1000ppm, 100 hrs.) <±5%RH

6 H2S (200ppm, 20 hrs.) 

<±5%RH

7 Acetone (1000ppm, 100 hrs.)

 <±5%RH

8 SO2 (200ppm, 20 hrs.)

 <±5%RH

 
9.Remarks
* Do not disassemble the sensor element. 
* Do not supply direct current to sensor. 
* Sensor is durable enough under high temperature / humidity or dew 
* condensation conditions, but storage for an exceedingly long time under 
* too severe conditions may cause improper functions. 
* Polymeric humidity sensing layer may be damaged at 100℃ or more. 
Refrain from using re-flow soldering systems. 

 

 

 

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