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Humidity sensor SJL31

产品中心

Humidity sensor SJL31

编号
SJL31.
没有此类产品
产品描述

1.Applications 

This specifications is applied to relative humidity sensor Type SJL31.

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 tim: <15S

moisture doffing time: <20S

Stability: <2%RH Per year

Interchangable characteristics:  (-5%RH~5%RH)

Typical humidity sensor Characteristics:  See following table 1

 

3.Outline Dimensions (Unit:mm) 

 

4.Typical humidity sensor Characteristics(table 1)

 

0℃

5℃

10℃

15℃

20℃

25℃

30℃

35℃

40℃

45℃

50℃

20%RH

 

 

 

10M

6700

4680

3900

3000

2400

1750

1450

25%RH

 

10M

7000

5000

3400

2420

1900

1500

1100

880

700

30%RH

6400

4600

3249

2350

1800

1260

1050

850

650

560

420

35%RH

2900

2100

1428

1099

851

640

520

430

330

260

190

40%RH

1450

1070

676

520

403

298

268

237

185

130

110

45%RH

700

500

343

264

204

152

145

120

88

70

56

50%RH

370

260

182

140

107

81

76

63

51

41

33

55%RH

190

140

106

82

63

49

44

36

30

24

19

60%RH

108

84

66

50

39

31

27.5

23

18.5

15.2

12.4

65%RH

62

49

41

31.5

24.4

20

16

13.6

11.7

9.5

7.8

70%RH

38

33

26

20

15.5

14.2

11

9.2

7.4

6.1

4.9

75%RH

23

18

15.5

12.5

10.4

8.5

7.4

6.1

5.2

4.1

3.3

80%RH

16

12.3

10

8.2

7.2

5.9

5.1

4.3

3.5

2.8

2.6

85%RH

10.8

8.5

7.0

6.2

4.8

3.9

3.5

2.8

2.3

1.9

1.6

90%RH

7.5

5.2

4.8

4.3

3.4

2.8

2.4

1.9

1.6

1.4

1.2

95%RH

5.2

3.6

3.4

3.0

2.4

2

1.8

1.5

1.2

1.0

0.9

 

5.Packing
(1) 50PCS of sensor are placed in a tray
(2) 20sheets to be packed in a small carton box(SIZE:L190*W150*H55mm)(1,000PCS of sensor in a unit box)
(3) 16 small boxes to be packed in larager box(SIZE:L340*W390*H240mm)(16,000PCS 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 degreeswith 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.)

 

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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