● Introduction:
High precision, sensitivity and reliability NTC thermistor is connected with PVC wire, and is encapsulated into various types with insulated, heat-conductive and water-proof epoxy, so it is easier for installation and remote temperature control and measuring.
● Application
It is applied to household appliances such as air conditioner, refrigerator, ice box, water heater, drinking water dispenser, fan heater, laundry drier, and foot bathtub; industrial instrument and other occasions required for temperature measuring and control.
● Features:
● The product is suitable for long-term operation with stable performance.
● It is with high precision electrical parameters, good sensitivity and quick response.
● It is with good sealing performance and reliable structure.
● The overall dimension can be selected, thus easy for installation.
● It can be manufactured into high dissipated product to simplify test circuit.
● Overall structure and dimension:
● CWFI type (epoxy resin encapsulation)
· Sign description：
① NTC temperature sensor
② Encapsulation types of sensing head: 1- epoxy, 2-metal shell, 3-plastic shell, 4-with fixed metal, 5-special encapsulation.
③ Nominal resistance: 103 is 10 KΩ.
④ Resistance precision: F: ±1％ G: ±2％ H: ±3％ J: ±5％ K: ±10％.
⑤B value (25/50℃): 3950K
·Technical parameters：
|
Product model |
R25 resistance |
B value（25/50℃） |
Dissipation coefficient
MW/℃ |
Time constant
S |
|
Range（KΩ） |
Precision（%） |
K |
Precision（%） |
|
CWF□□□3100 |
0.1-20 |
±1
±2
±3
±5 |
3100 |
±1%
±20% |
≥2-4 |
≤15-70 |
|
CWF□□□3270 |
0.2-20 |
3270 |
|
CWF□□□3380 |
0.5-20 |
3380 |
|
CWF□□□3470 |
0.5-20 |
3470 |
|
CWF□□□3600 |
1-100 |
3600 |
|
CWF□□□3950 |
5-100 |
3950 |
|
CWF□□□4000 |
5-100 |
4000 |
|
CWF□□□4050 |
5-200 |
4050 |
|
CWF□□□4150 |
10-250 |
4150 |
|
CWF□□□4300 |
20-1000 |
4300 |
|
CWF□□□4500 |
20-1000 |
4500 |
Note:
● Block 1 is filled in the encapsulation types; block 2 is filled in the nominal resistance; and block 3 is filled in the resistance precision.
● When resistance precision is ±1％, ±2％, the B value precision is ±1％，and all the other B value precisions are±2％.
● Special specifications can be designed according to user’s requirements.
