CQC Certificated Waterproof CWF Precision Custom NTC Temperature Sensor 10KOHM 3950 For HVAC and Refrigeration

Product Description

 

CQC Certificated Waterproof CWF Precision Custom NTC Temperature Sensor 10KOHM 3950 For HVAC and Refrigeration

 

PDF Specification File Download Link : CWF Precision NTC Temperature Sensor.pdf

 

General 

 

NTC Temperature Sensors offers wide range of standard and customized temperature sensors designed according to individual customer's requirements covering applications in temperature range between -80°C and +600°C. Our product contains temperature sensors build using NTC/PTC thermistors, RTDs ,DS18B20 and other sensing elementsmounted into wide range of metal/plastic housings.

 

 

How to order ?

 

1. Operating temperature range :  ?

2. Application: ?

3. Material and dimension of Housing: ?

4. Specification of sensing element : ?

(For example: If sensing element is NTC Thermistor, then Resistance at 25degree is 10KOHM,Resistance tolerance is ±1% ; Beta value is 3950,Beta tolerance is ±1%)

5.Cable gauge and length

6. How to deal with tail of cable ? Attach connector or stripped & tinned ? If attach connector,pls let us know part number of connector and we will recommend suitable one.

7. Any special requirements ? For example; Tolerance for sevaral temperature point etc.

8. Estimated quantity required 

 

Note: If you can provide datasheet/drawing or famous MPN ,then you have no need provide above info .

 

 

Features

 

Proven Stability and Reliability,
Cost effective solutions
Variety of metal and plastic housings and tubings designed for specific applications
Potted with different kinds of resin for good sensor protection
Available with special kinds of cables (2-core cables or stranded with PVC, Silicone, Teflon or Kynar insulation,cables with screen & other), connectors and other attachments
Provides good protection from the environment conditions
Proven high voltage strength and dynamic strength
Wide range of Resistance/Temperature, characteristics
Designed for temperature measurement, control and compensation

 

 

Application

 

Automotive(Air Conditioning, Cabin Climate Control/Management,
External Temperature Monitoring, Heated Seats, Heated Steering
Wheels, other), Consumer Products, Instrumentation

Industrial Ovens, Electric Showers, HVAC and Refrigeration,Fire Detectors, Pools and Spas, Others...

 

 

Popular products display

 

a.CWF1 Packed with epoxy resin

 

Dimension(mm)	Code	S1	S2	S3	S4	Function	Main application
	Dmax	4	5	6	7	Moisture-proof,small time contant,fast respond	Household air-onditioner, refrigerate.
	L1max	16	16	16	16
	Cable	28#	26#	24#	22#
	L2	To be advised

 

b.CWF2 Packed with aluminum,copper,stainless steel etc.

 

Dimension(mm)	Code	S1	S2	S3	S4	S5	S6	S7	Function	Application
	Dmax	4	5	5	5	6	6	6	Moisture-proof,large coefficient, excellent stability	House hold air-conditioner refrigerate heater
	L1max	20	20	25	30	20	25	30
	L2	According to customer’s requirement

 

c.CWF3 Packed with plastic

 

Dimension(mm)	Code	S1	S2	S3	S4	Function	Application
	D	3.5	4	5	6	Moisture-proof, Excellent coherence,voltage withstand	House hold, air-onditioner, refrigerate.
	L1	15	15	15	20
	L2	To be advised by customer
	D	4	8	8
	L1	10	35	50
	L2	To be advised by customer

 

d CWF4 Fixed sheet metal added

 

Dimension(mm)	Function	Application
	It can be meet with different mount requirement because of agility dimension	Fan control, industry meter

 

e CWF5 Special packed shape

 

Dimension(mm)	Function	Application
	Small time constant,fast respond,stability.	Applied in high temperature environment,heater, coffee oven,etc.

 

 

Main Technology Parameters

 

Part number	Rated resistance R25		B value (25/50)		Dissipattion Coeffient.	Thermal time constant	Operating temperature
	Range KOhm	Tolerance %	(K)	Tolerance %	Mw/℃	sec	℃
CWF□□□3100	0.1~20	±1 ±2 ±3 ±5	3100	±1	≥2.2	≤70	-55~+125
CWF□□□3270	0.2~20		3270
CWF□□□3380	0.5~50		3380
CWF□□□3470	0.5~50		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

 

 

Sensing Element-NTC thermistor used

 

 

 

Workshop of high quality and high performance NTC Thermistor

 

We have the unique process and leader core technology with proprietary intellectual property rights of ceramic powder equipment,made of chips,high performance NTC Automatic batch production.
We have more than 12 series of high performance NTC thermistors automatic production line,products have the advantages of large production,high quality,good coherence,high reliability,besides it can be made of many kinds of NTC temperature sensors,it also can be supplied to other factories of NTC sensors,and exported in large quantities to overseas.

 

 

 

NTC Temperature sensor -- a glance at workshop

 

 

 

Advantages and characteristics of Auto Temperature Sensor

 

• We have the heart of NTC temperature sensor--full sets of production line and core technology of pro-prietary intellectual property rights for high performance temperature measurement NTC thermistor.
• We have all kinds of NTC core element of NTC Temperature sensor--high performance temperature measurement thermistors are own production,complete series,structural diversity. Our products can meet the requirements of prevision measurement in different temperature area from low temperature,medium and low temperature to medium-high temperature.These products have passed many safety certifications of domestic and foreign.
• Resistance and temperature characteristics can meet customer's requirements entirely,and support best convenience to customers.
• Mature manufacturing technique of NTC temperature sensor,Large-scale mass production,product have the best ability of insulation sealing,Mechanical collision,resistance to bending,well-set.
• Small thermal time,fast response
• Multi category,complete series,many kinds of housing he configuration,easy to assemble
• We have high lavel inspection equipments which carrry out strict and normative inspection process.
• Our products with high precision,high reliability,high stability,high interchangeable,high commonality are advanced in industry.

(Highest tolerance can be reach ±0.02℃) (Years of drif rate ≤1‰)

 

 

Operating temperature and environment of NTC temperature sensor depend on specific performance of its core element and lead wire:

 

►Different NTC thermistor using in the NTC temperature sensors with the following different operating temperature:

Chip or MF52A,MF51E,MF55: temperature resist grade 125℃,actual temperature resist grade 150℃
MF58: temperature resist grade 200℃,actual temperature resist grade 250℃
MF51: temperature resist grade 200℃,actual temperature resist grade 250℃
Special MF51: temperature resist grade 250℃,actual temperature resist grade 300℃
Weldless chip:temperature resist grade 450℃,actual temperature resist grade 500℃

 

►Operating environment

In the environment of high temperature,high humidty and high corrosion,we suggest to use glass sealed type thermistor as the core element.And MF51 type will be the best NTC thermistor in high humidity environment.

 

►Design considerations and procedure of temperature sensor:

1. Choose the shape acoording to customer's design or assemble requirements, and confirm the thermistor.
2. Confirm the thermistor element and other materials according to customers' requirement
3. Choose the suitable resistance,B value and tolerance
4. Choose suitable moisture-proof and insulation technology to meet customer's requirement
5. Choose suitable encapsulation structure to meet performance requirements of mechanical shock resistance
6. Meet customer's special requirements.

 

 

Reliability Test

 

Test Item	Test Standard	Test method	Performance requirements
Zero Power Resistance	IEC 60539-1	Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance	Resistance tol ±1%
B value	IEC60539-1	Immerse samples in the constant temperature bath at 25℃,50℃(or 85℃), test steady resistance,and calculate B value	Resistance tol ±1%
Free fall	IEC60068-2-32	Fall height: 1.5±0.1m,Surface: Cement , 1 time	No obvious damage, R25 △R/R≤±1%
Insulation	IEC60539-1	500V pressure on insulation shell test insulation resistance	>500MOhm
Withstand voltage	IEC60539-1	Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec	No obvious damage
Tension	IEC60068-2-21	Pull uniform speed at the end, F>4.0KG(requested by customer)	No obvious damage, R25 △R/R≤±1%
Vibration	Q/HBm 108-94	Test frequency: 10~500Hz,swing: 1.2mm acceleration: 30m/s2 Direction X,Y,Z Time:8Hour/direction	No obvious damage, R25 △R/R≤±1%
Steady humidity and heat	IEC60068-2-78	Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour	No obvious damage, R25 △R/R≤±1%
Thermal time constant	EC60539-1	Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time	<10 sec
High temperature storage	IEC60068-2-2	Temp:125℃±5℃ Time: 1000±24Hour	No obvious damage, R25 △R/R≤±1%
Cold and thermal shock	IEC60068-2-14	-40℃~+125℃ T1:30min Cycle time:1000	No obvious damage, R25 △R/R≤±1%
Knock experiment	IEC60068-2-77	Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery time: 2 Hour	No obvious damage, R25 △R/R≤±1%
Low temperature storage	IEC60068-2-1	Temp: 40±2℃ Time: 1000±24Hour	No obvious damage, R25 △R/R≤±1%
Salt spray	IEC60068-2-11	Temp: 35±2℃ Collection hour : 1.0mL~2.0mL Time: determine per as actual demand	No obvious damage, R25 △R/R≤±1%

 

 

Introduction of test and inspection equipments

 

Name: High/Low-Thermal Shock Chamber Function:test product withstand high/low-thermal shock chamber	Name : Constant temperature and humidity chamber Function: test products storage state under steady damp and heat
Name : Vibration testing equipment Function : test the effect on product during transportation generated by vibration frequency and amplitude	Name : Salt spray test machine Function: Test product resistance to oxidation,corrosion

Name : Laser particle size analyzer Function : Analyse material of laser particle size	Name : Vacum & high temperature dry oven Function : high temperature aging test
Name : Spectrum analyzer Function : analyze harmful substance content of products	Name : Electrolytic thickness gauge Function : Used for testing coating thickness of raw material

Name : Constant temp oil bath instrument Function : test ambient temperature at constant point resistance (tolerance ±0.002℃)	Name : Low Temperature precision test sink Function : Test temperature at constant point resistance during -70℃~0℃ (tolerance ±0.01℃)
Name : DC constant voltage and constant current power supply (high current) Function : Test U-I Curve	Name : High precision thermistor sorter Function : Test resistance of thermistor

Name : Dissipation and thermal time constant testing instrument Function : Test dissipation and thermal time constant	Name : NTC Impact tester Function : Test impulse capacitance which products can endure
Name : Withstand voltage test instrument Function : Test insulation withstand voltage	Name : DC constant voltage power supply Function : Test rated power consumption

 

Name : Projector Function : Test out appearance and inner structure	Name : Elongation rate instrument Function : Test elongation rate of leads
Name : Overload aging test machine Function : Electricity aging test of temp measurement products	Name : Chemical experiment table Function : Chemical blending
	Name : Aging stage Function : Test aging reliability of product