High Precision NTC Temperature Sensor For Refrigerator Temperature Test

High Precision NTC Temperature Sensor For Refrigerator Temperature Test

Quick Detail

1.1 Features

1. High precision high stability

2. Quick temperature response

3. Resistant to heat shock

4. Moisture resistant

5.Excellent quality and high stability by high technical mass production

1.2 Applications

Temperature test in kinds of air-condition,refrigerator,hot boiler,microwave oven.

2.0 Structure And Dimensions

2.1 Standard Configurations And Dimensions

3．0 Part Number Code

×× × ××× × × ××××

① ② ③ ④ ⑤ ⑥

•  NTC temperature sensors code
•  Housing Type
• Nominal Resistance at 90℃
•  Resistance Tolerance(%)

•  B Value
•  Wire Length(mm)

4.0 Performance Parameter

4.1 Resistance(R₉₀)

requirement:R₉₀＝1.084KΩ±1%

test method:90℃±0.1℃.(90℃±0.1℃ in the oil.)

4.2Thermal time Constant(τ)

requirement:τMax15s, τMax18s

test method:In the water, When the products be put into the water at 25℃ from the water at 50℃, Thermal time constant is the time that cost by the resistance becoming to be the value at34.2℃.

4.3Dissipation Constant(δ)

requirement:3mw/℃,3mW/℃(min, in air)

test method(The product will be join with the following circuit at 25±0.5℃ in still air.

4.4 Max.rated power

requirement:P≈275mw

calculating method:P≈δ×(80℃－25℃)

80℃ is the maximum temperature that the product is heat by itself.

4.5Insulation resistance

requirement:100MΩ

test condition:At DC 500v.

4.6withstanding voltage

requirement:There shall be no evidence of damage during the test.

test condition:AC 1500V for a One second,Permissible Current 5mA.

4.7Max. Permissible Current

requirement:0.72mA

test condition:The current which can be applied to the sensor for rised upper limit of operating temp. range at 25℃ in still air.

4.8 Temperature -40--105℃

1. 0 Reliability Characteristics

6.0 Method of the stockpile

6.1 The height of stacks products cannot overbalance four boxes,in the stackpile and the course of transport.

6.2 The packing products of inside must placed desiccant.Allowance used the angone way to transport,but must prevent therain and the snow direct or indirect shower bath and damnification of these products.

6.3 The products are stockpiles candition of the tencperature is about -10℃/+40℃,the opposite humidity not bigger too 80%,acidic and alkalescent of substance,erode gas or radiant point are not should enclose the products.