Refrigerator Defrost Temp Sensor Copper Shell CQC Certified NTC Probe Thermistor

Short Description:

Introduction：NTC Temperature Sensor

NTC temperature sensor is an NTC thermistor after the wire welding, encapsulate into a different probe and then use an epoxy seal. The NTC temperature sensor retains all the features of the NTC thermistor. After the optimization of the injection and cooling stages, will be made into a complete product, mass production is a continuous cycle of this processing step produced. Molding cycle according to product size, probe material and product design is different, a complete temperature sensor requires several different parts and processes.

Function: temperature sensor

MOQ：1000pcs

Supply Capacity: 300,000pcs/month

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Product Detail

Company Advantage

Advantage Compared with the Industry

Product Tags

Product parameter

Product Name	Refrigerator Defrost Temp Sensor Copper Shell CQC Certified NTC Probe Thermistor
Use	Refrigerator Defrost Control
Reset Type	Automatic
Probe Material	PBT/PVC
Operating Temperature	-40°C~150°C (dependent on wire rating)
Ohmic Resistance	5K +/-2% to Temp of 25 deg C
Beta	(25C/85C) 3977 +/-1.5%(3918-4016k)
Electric Strength	1250 VAC/60sec/0.1mA
Insulation Resistance	500 VDC/60sec/100M W
Resistance Between Terminals	Less than 100m W
Extraction Force between Wire and Sensor Shell	5Kgf/60s
Approvals	UL/ TUV/ VDE/ CQC
Terminal/Housing type	Customized
Wire	Customized

Working Principle

NTC temperature sensor working principle is the same with the NTC thermistor, the principle is: the resistance value of the resistance with increasing temperature decreases rapidly. It is usually composed of 2 or 3 kinds of metal oxides, and in the high temperature furnace forging into a precision ceramic sintered body. The actual size is very flexible, they can be as small as .010 inches or very small diameter. The maximum size is almost unlimited, but usually applies for half an inch or less.

Applications

Generally use the glass seal or metal probe NTC sensor, monitor and control the temperature of various electrical appliances, such as: oven, microwave, washing machine and dryer, dishwasher, toaster, blender, hair dryer, curling pliers, shower, air conditioner, stove, refrigerator, chiller
Widely used in rechargeable nickel-chromium batteries, NiMH batteries, cordless power tools, camcorders, portable CD players, radio charging control.

Working Principle

Typical characteristics

The NTC resistor is available in ranges from one ohm to 100 megohms. The components can be used from minus 60 to plus 200 degrees Celsius and achieve tolerances of 0.1 to 20 percent. When it comes to selecting a thermistor, various parameters must be taken into account. One of the most important is the nominal resistance. It indicates the resistance value at a given nominal temperature (usually 25 degrees Celsius) and is marked with a capital R and the temperature. For example, R25 for the resistance value at 25 degrees Celsius. The specific behavior at different temperatures is also relevant. This can be specified with tables, formulas or graphics and must absolutely match the desired application. Further characteristic values of the NTC resistors relate to the tolerances as well as certain temperature and voltage limits.

Craft Advantage

We operate additional cleavage for the wire and pipe parts to reduce the flow of epoxy resin along the line and reduce the height of the epoxy. Avoid gaps and breakage bending of wires during assembly.

Cleft area effectively reduce the gap at the bottom of the wire and reduce the immersion of water under long-term conditions.Increase the reliability of the product.

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Our product has passed the CQC,UL,TUV certification and so on, has applied for patents accumulatively more than 32 projects and has obtained scientific research departments above the provincial and ministerial level more than 10 projects. Our company has also passed the ISO9001 and ISO14001 system certificated, and national intellectual property system certificated.

Our research and development and production capacity of the company’s mechanical and electronic temperature controllers have ranked in the forefront of the same industry in the country.