temperature sensor ntc thermistor cwf series for welding machine-九游会下载

performance parameters:

model no.: cwf-103f3950fa

r25 = 10kω ± 1 %,

b25/50 = 3950k ± 1 %.

lead wire: ul2651 2c insulated and pair together 30awg 105℃ 300v ts black;

lead length: 100mm, 160mm, 230mm are normally.can also be customized according to the length required by the customer.

brief introduction：

temperature sensor ntc thermistor cwf series have stability product performance,annual resistance drift rate ≤5‰, can work in long time with high reliability,they can be widely applied in temperature control of welding machines . 

product application:

applied in temperature control and heat protection of welding machine.

advantages of temperature sensor ntc thermistor:

1.  high precise resistance and b value,good consistancey,interchangeable 

     (resistance and b value tolerance can be ±1%）

2.  high sensitivity,fast response,temperature resistance coefficient can be (2~5)%/℃ 

3.  high precise  temperature control,

4.  can be encapsulated based on specific installation condition,convenient for users' installation

5.  good insulation,anti bending and anti mechanical collision,high reliability

dimension(unit: mm):

characteristic：

1.product name: ntc temperature sensor

2.r25 resistance：r25＝10kω±1%，

3.b value: b25/50=3950k±1%

4.thermal response time：t1=25 (85-25)*63.2％=62.9℃ 8s max.in a water bath

5.dissipation coefficient：ta=25±0.5℃ around 2.5mw/℃.in the still air

6.hi-pot test：ac 1500v 2ma 6 6s,no flashover ,no breakdown in steel ball

7.insulation test：dc 500v 100mω,≥100mωin a steel ball

8.erp：mf52c103f3950l27026awg-nts0822

9.operating temperature：-30℃～105℃

reliability test:

1. high temperature experiment: 1000 hrs in air 100 ± 5 °c

2. low temperature experiment: -30 ± 5 °c 1000 hrs in air

3. temperature cycle experiment: -30 °c / 30 minutes. room temperature 10 minutes. 100 °c / 30 minutes 10 cycles

4. electricity experiment: dco 0.2 ma 1000 hrs in constant temperature and humidity

5. lead strength: the force applied to 20n lasts 1 minute

6. fall experiment: free fall of mud floor from 1m height

after the above performance test, there is no change in voltage resistance, insulation performance, and appearance without damage.

storage method:

1. no more than 4 boxes of products per stack height during storage and transportation;

2. dry agent should be placed in the bag. avoid direct or indirect showers and mechanical damage from rain and snow;

3. products should be stored at room temperature and often wet, and the surrounding environment should not be acidic,

 alkaline substances and corrosive gases or radiation sources.