AMWEI thermistor-China manufacturer of PTC NTC thermistors and temperature sensor probe  
MAIN   |  PRODUCTS   |  ABOUT US   |  CONTACT US

Thermistors Search
Thermistors Sort:
Keyword:
 
Technical Information
NTC Thermistor
NTC PTC Thermistors Li...
PTC NTC Thermistors Co...
NTC thermistors Chargi...
Inrush Current Limit N...
NTC Thermistors Glossa...
NTC Sensor Select Refe...
NTC Thermistor RT Tabl...
NTC Thermistors Applic...
NTC Thermistor Manufac...
PTC Thermistor
PTC Thermistors Charac...
PTC Thermistors Protec...
PTC Limit Temperature ...
PTC thermistors Limit ...
PTC Thermistor Overloa...
PTC Thermistor Protect...
PTC Thermistor Current...
PTC Thermistors Manufa...
PTC Thermistor Glossar...
PTC Thermistors Applic...
 
 /  PTC Thermistor  /  NTC Thermistor


NTC Thermistors Temperature Sensor Probe Assemblies

NTC Thermistors Temperature Sensor Probe Description

NTC Thermistor can be assembled in housing in a variety of configurations for temperature sensing, measurement, detection, indicator, monitoring and control. Thermistor temperature sensor probe assemblies can conveniently attach to or be an integral part of any system to monitor or control temperature.The choice of assembly is dependent on the application. The primary factors which determine the optimum configuration of a thermistor assembly are the operating environment, mounting, time response and minimum dissipation constant.
The two factors which do vary considerably with thermistor sensor probe assembly design are time constant and dissipation constant. The time constant will typically be of greater duration in encapsulated thermistors. This is, of course, due to additional mass surrounding the thermistor element; therefore, extending the thermal transfer time. Dissipation constant will also be greater in assemblies. The additional housing mass serves well as a heat sink. Greater power is therefore required to induce self-heating. Both time constant and dissipation constant will vary with the selected thermistor and housing. Heat transfer properties of the housing, thermistor location, mass and wire type determine these constants.
Applications for temperature sensing include air temperature sensors, surface temperature sensors and immersion temperature sensors. Housings for air temperature sensors are often simple, inexpensive devices such as molded plastic shells, deep- drawn brass or aluminum cylinders, or even stainless steel tubes. Surface temperature sensors are designed to match the contour of the surface to be sensed, whether it's flat, curved, or round. Mounting holes or clips are often used to simplify installation of the sensor. Immersion temperature sensors are designed so that the sensing element will be surrounded by the medium to be sensed, often times a liquid. The sensing portion will normally protrude through a hole or orifice while a portion of the assembly will remain outside the medium to allow for the signal to be read. Immersion housings are usually threaded to allow them to be screwed into a hole or opening. Immersion part requests to be liquid and humidity prevention.
The material used for the housing will be dependent upon the temperature range needed, response time, cost, and special considerations such as UL, FDA or NSF requirements in food and/or medical applications. Some of the materials available include stainless steel, copper, plastic, teflon, brass, aluminum, epoxy and heat shrinkable tubing.
The following are examples of some NTC thermistor temperature sensor probe assemblies.

Dimension in the unit: mm

copper brass air conditioner thermistor temperature sensor
copper brass air conditioner thermistor temperature 
sensor engineering drawing

Application: Temperature measurement in air conditioner for regulating the evaporator temperature, and other HVAC (Heating, ventilation and air conditioning) application.
Copper (brass) tube NTC thermistor temperature sensor probe features

Copper (brass) tube (pipe) case thermistor temperature sensor probe assembly.
PVC insulated wire.
Moisture resistant.
Small, quick temperature response.
High stability under temperature shock.

Resistance @25C

Beta Value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

10K ohm1%

3950K1%

5 MW/C

10 sec

-30C+105C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


epoxy air thermistor temperature sensor
epoxy air temperature sensor engineering drawing

Application: thermistor air temperature sensor for air conditioning, floor heating, and other HVAC application.
Epoxy air temperature sensor features

Thermistor temperature probe with epoxy resin encapsulation,
PVC-insulated wires
Moisture resistant.
Small, quick temperature response.

Resistance @25C

Beta Value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

10K ohm1%

3950K1%

10 sec

5 MW/C

-30C+105C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


ABS plastic freezer thermistor temperature sensor
ABS plastic freezer thermistor temperature sensor engineering drawing

Application: Thermistor temperature measurement for refrigerator, freezer, deep-freezer, ice cube makers, counter drinks cooler, backbar and catering coolers, display fridges, wine coolers, and other HVAC application, etc.
ABS Plastic NTC Thermistor Temperature Sensor Features

ABS plastic tube (pipe) case thermistor temperature sensor assembly.
PVC insulated connecting cable.
Withstands freeze/thaw cycling. Moisture resistant.

Resistance @25C

Beta value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

5K ohm1%

3950K1%

5 MW/C

10 sec

-40C+80C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Ring lug NTC thermistor surface temperature sensor, M4 screw-in-place mounting
Ring lug NTC thermistor surface temperature sensor engineering drawing, M4 screw-in-place mounting

Ring lug NTC thermistor surface temperature probes are designed for screw-in-place mounting. Most of these temperature probe housings are standard ring terminals or ring lugs with the thermistor potted in the barrel of the lug, popular for temperature measurement, control, and monitoring of small motors, heat exchangers, computer equipment, power electronics, semiconductor heat-sink temperature control, enclosure panels, industiral equipment, automotive equipment etc. They are also easily mounted in instruments where over temperature protection is required.
Ring lug terminal NTC thermistor surface temperature sensor features

Good thermal coupling through metal tag.
Thermistor housed in eyelet nickel plated copper material.
Metal contact surface yields fast temperature response.
PVC insulated leads.
Ring tag eyelets to fit screw mounting.

Resistance @25C

Beta value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

10K ohm2%

3950K1%

5 MW/C

15 sec

-30C+105C

Note:
1. Alternative ratings on resistance and Beta value upon request.
2. Other ring hole diameter can be offered upon request for M3, M4, M5, M6, M8, M10, M13 screw thread application.


Ring lug NTC thermistor surface temperature measurement probe, 200C, M3 bolt mounting
200C ring lug NTC thermistor surface temperature sensor engineering drawing, 200C, M3 bolt mounting

Round ring flat surface temperature measurement probe, PTFE wire cable, used for high temperature sensing measurement, such as bread processing machine, induction cooker, and other kitchen cooking utensil, ironing, etc.Convenient for screw-in-place bolt mounting, Ring lug hole diameter available for #4 stud application.

Resistance @25C

Beta value
B(25/50C)

Voltage withstanding

Dissipation factor

Operating temperature

100K ohm1%

3950K1%

1500V/2sec.

15 sec

-30C+200C

Note: Alternative ratings on resistance, Beta value and calbe upon request.


NTC Thermistor Surface Temperature Probe,Metal Lug Housing

NTC Thermistor Surface Temperature Probe, Metal Lug Housing

Surface mount housing, copper lug terminal, with stud mounting hole, jacketed cable, PVC insulation.


flag terminal thermistor temperature sensor probe

Flag terminal thermistor temperature sensor probe, surface mount housing, tin-plated copper flag terminal, with stud mounting hole, applied in industrial equipment, transit, HVAC, power and utilities, computers, home appliances, calibration and instrumentation.
Flag terminal thermistor temperature sensor probe features

Suitable for power supply, motor, heatsink applications.
Copper housing material has excellent thermal transfer characteristics.
Flag terminals are available in several sizes allowing a wide choice of extension wire and cables to be used in the assembly.
Eyelet to fit screw-in-place mounting.


copper lug thermistor temperature sensor probe

Surface mount housing, copper lug terminal, with stud mounting hole, flying leads, PVC insulation.

flat disc metal thermistor temperature sensor probe

Flat disc metal thermistor temperature sensor probe features

Flat Disc,stainless steel, versatile, multi-purpose surface temperature sensor.
Flat Disc Construction Provides Maximum Surface Contact.
Flat disc metal thermistor temperature sensor probe ideally suited for applications such as determining heat loss, compressor efficiency and measureing manufold temperature.


flanged stainless steel oven cooker roaster toaster thermistor temperature sensor probe 1 mounting hole

flanged stainless steel oven cooker roaster toaster thermistor temperature sensor probe 1 mounting hole engineering drawing

Application: thermistor temperature sensor probe assembly for standard domestic oven, microwave oven, electric cooker, roaster, toaster, industrial process control, etc.
Stainless steel oven cooker roaster toaster thermistor temperature sensor probe features

Glass encapsulated thermistor, housed in stainless steel sheath, with rectangle flange, round tip and 1 mounting hole.
For temperature measurement upto 250C.
Reliable operation in hot, damp and fatty air.

Resistance @200C

Beta value
B(100/200C)

Thermal time constant

Dissipation factor

Operating temperature

1K ohm3%

4537K

15 sec

5 MW/C

-30C+250C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Flanged stainless steel thermistor temperature sensor probe 1 mounting hole

Flanged stainless steel thermistor temperature sensor probe 1 mounting hole engineering drawing

Flanged stainless steel NTC thermistor temperature sensor probe features

Glass encapsulated thermistor, housed in stainless steel sheath, with rectangle flange and 1 mounting hole.
Diode package thermistor is exposed outside for fast response.
Fibreglass silica gel cable.
For temperatures upto 300C.
Reliable operation in hot, damp and fatty air.

Resistance @200C

Resistance @25C

Beta Value B(100/200C)

Voltage withstanding

Insulation resistance

Operating temperature

1K ohm

230 K ohm

4537k

1500V/2 seconds

Voltage 500VDC,
100M ohm

-30C+200C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Bending stainless steel barbecue fork fryer thermistor temperature sensor probe
Bending stainless steel barbecue fork fryer thermistor temperature sensor probe engineering drawing

Application: thermistor temperature sensor probe assembly for electric cooker, oven, barbecue fork, fryer,etc.
Bending stainless steel NTC thermistor temperature sensor probe features

Bending stainless steel housing, with pointed penetration tip. Quick temperature response.
Resistant to high temperature.

Resistance @25C

Beta value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

100K ohm3%

3990K1%

15 Sec

5 MW/C

-30C+250C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Hex head screw threaded miniature immersion NTC thermistor temperature sensor, M8 thread in mounting
Hex head screw threaded miniature immersion NTC thermistor temperature sensor, M8 thread in mounting

Application: thermistor temperature sensor probe for temperature measurement of liquid, water, air, etc. Typical application coffee maker, tea kettle, drinking water, water heater boilers, chiller system, water and oil tanks, consumer appliances,industrial appliances,solar heating systems,etc.
Hex head Screw threaded water heater boilers NTC thermistor temperature sensor features

Immersion thermistor temperature sensor, can be placed directly in the water flow, in direct drinking water contact, to detect water temperature.
Fast time response for water liquid immersion application.
Reduced thermal gradient, due to the use of small tip dimesion.
Hex head Screw threaded mounting sensor.
Rugged, resistant to heat shock and moisture.

Resistance @25C

Beta Value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

50K ohm1%

3950K1%

7 sec

5 MW/C

-30C+105C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


coffee maker immersion thermistor temperature sensor

coffee maker immersion thermistor temperature sensor engineering drawing

Application: thermistor temperature sensor probe for liquid temperature measurment, control, such as coffee maker, tea kettle, drinking water, boilers, chiller system, water and oil tanks, consumer appliances,industrial appliances,solar heating systems,etc.
Coffee maker NTC thermistor temperature sensor probe features

Immersion thermistor temperature sensor, can be placed directly in the water flow, in direct liquid water contact, to detect liquid water temperature.
Fast time response for water liquid immersion application.
Reduced thermal gradient, due to the use of small tip dimesion.
Precise temperature measurement due to direct water contact.

Resistance @25C

Beta Value
B(25/50C)

Voltage withstanding

Insulation resistance

Operating temperature range

100K ohm1%

3950K1%

1200VAC/5 seconds

Voltage 500VDC,
100M ohm

-30C+125C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Water heater tea kettle maker immersion thermistor temperature sensor

Water heater tea kettle immersion thermistor temperature sensor engineering drawing

h5>Application: thermistor temperature sensor probe for liquid temperature measurment, control, such as coffee maker, tea kettle, drinking water, boilers, chiller system, water and oil tanks, consumer appliances,industrial appliances,solar heating systems,etc.
Water Heater NTC thermistor temperature sensor probe features

Immersion thermistor temperature sensor, can be placed directly in the water flow, in direct drinking water contact, to detect liquid water temperature.
Fast time response for water liquid immersion application.
Reduced thermal gradient, due to the use of small tip dimesion.
Precise temperature measurement due to direct water contact.

Resistance @25C

Beta Value

B(25/50C)

Voltage withstanding

Insulation resistance

Operating temperature range

50K ohm1%

3950K1%

1200VAC/5 seconds

Voltage 500VDC,
100M ohm

-30C+125C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Flanged Stainless Steel Probe
Flanged Stainless Steel Probe engineering drawing

Closed end flanged stainless steel NTC thermistor temperature sensor probe for fryer, roaster, toaster,standard domestic oven, microwave oven, electric cooker, other application includes automotive engines and exhaust, industrial process control, etc.

Resistance @25C

Resistance @200C

Beta Value B(25/50C)

Voltage withstanding

Thermal time constant

Operating temperature

1.388M ohm

4K ohm

4500k

1800V/2 seconds

20 sec

-30C+280C

Note: Alternative ratings on resistance and Beta value upon request.


Spherical Ended Stainless Steel Probe with Wide Mouth jacket cable
Spherical Ended Stainless Steel Probe with Wide Mouth jacket cable engineering drawing

Spherical Ended Stainless Steel Probe, with wide mouth, jacket cable.

Resistance @25C

Beta value
B(25/50C)

Thermal time constant

Voltage Withstanding

Operating temperature

10k ohm1%

3950K

15 sec

1500V/ 2Sec

-40C+105C

Note: Alternative ratings on resistance and Beta value upon request.


Flared stainless steel tube thermistor temperature sensor probe
Flared stainless steel tube thermistor temperature sensor probe engineering drawing

Flared stainless steel tube thermistor temperature sensor probe, "bullet" style temperature probe for air, gas or liquid. Typical application coffee maker, tea kettle, water heater boilers, milk warmer, cooking equipment, and other home appliance.

Resistance @25C

Beta Value
(25/85)

Thermal time constant

Dissipation factor

Operating temperature range

10K ohm2%

3977K1%

12 Sec

5 MW/C

-30C+105C

Note: Alternative ratings on resistance, Beta value and cable length upon request.



Aluminum tube cookie maker bread maker 

thermistor temperature sensor


Aluminum tube cookie maker bread maker thermistor temperature sensor engineering drawing

Application: Aluminum tube thermistor temperature sensor probe assembly for coffee maker, cookie maker, bread maker, roaster, toaster and other food processing, especially for coffee maker heating tray, bake tray.

Resistance @200C

Resistance @25C

Beta Value B(100/200C)

Voltage withstanding

Insulation resistance

Operating temperature

1K ohm

230 K ohm

4537k

1500V/2 seconds

Voltage 500VDC,
100M ohm

-30C+200C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


flanged stainless steel oven cooker roaster toaster thermistor temperature sensor probe 2 mounting holes

Flanged stainless steel NTC thermistor temperature sensor with 2 mounting holes features

NTC thermistor housed in stainless steel sheath, with rectangle flange and 2 mounting holes.
2 mounting holes, together with O-ring sealing, for better sealing.

Resistance @25C

Beta value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

10K ohm1%

3950K1%

15 sec

5 MW/C

-30C+120C

Note: Alternative ratings on resistance and Beta value upon request.



pointed tip stainless steel thermistor temperature sensor

Stainless Steel Housing Immersion Penetration Probe.
Pointed tip stainless steel NTC thermistor temperature sensor features

Long stainless steel housing, with pointed tip, for easily penetrating and piercing soft and semi-frozen materials, handling for multi-point temperature sensing. Can be used in food processing, oven, liquid (water) boiler. Also ideal for soil and ground measurements.
Fast response.
Can operate in high temperature media.

Resistance @25C

Beta value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

100K ohm1%

3990K1%

15 sec

5 MW/C

-30C+250C

Note: Alternative ratings on resistance and Beta value upon request.



Meat Probe


Meat Probe engineering drawing

Meat probe is used to measure the temperature of cooking food. Application inculdes home appliance and microwave oven, etc.
Meat probe features:

Stainless steel housing with sharpen tip for easily penetration into the food.
Optional for straight stainless steel tube, or bending at requested position.
copper braided shield cable.
Phone plug termination.
Reliable operation in hot, damp and fatty air.

Resistance @200C

Resistance @25C

Voltage withstanding

Insulation resistance

Operating temperature

1K ohm

231K ohm

1500V/2 seconds

Voltage 500VDC,
100M ohm

-40C+250C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Threaded stainless steel thermistor temperature sensor, M8 threaded mounting
Threaded stainless steel thermistor temperature sensor engineering drawing, M8 threaded mounting

Threaded stainless steel tube thermistor temperature sensor probe for temperature measurement of liquid, water, air, etc. Ideal for vessel and pipe installation. Typical application coffee maker, tea kettle, water heater boilers, soybean milk cooking equipment, and other home appliance.

Threaded stainless steel NTC thermistor temperature sensor features

Immersion liquid probe.
Screw thread mounting sensor.
Threaded design affords greater resistance to shock and vibration.
Quick response.

Resistance @25C

Beta Value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature range

10K ohm2%

3950K1%

15 seconds

5 MW/C

-30C+105C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Metal Housing Hex Threaded Fitting immersion liquid NTC thermistor temperature sensor Metal Housing Long Thread temperature sensor probe
Soybean milk thermistor sensor probe metal threaded temperature sensor
Metal Housing Threaded Fitting NTC thermistor temperature probes consists of a thermistor mounted inside a threaded pipe plug. The temperature probes in this series are widely used for temperature sensing in pipe walls, vessel walls, and equipment casings.Ideal for tanks, vessel and pipe installation. Typical application water heater boilers, coffee maker, tea kettle, roaster, toaster, kitchen appliance, building automation systems,compact heat exchanger,closed loop pressurized system, water tank application, as well as other industrial application.
Metal Housing Threaded Fitting immersion liquid NTC thermistor temperature sensor features

Bolt-mount thermistor sensor.
Screw thread mounting sensor.
Available for chassis mounting.
Threaded hex head design affords greater resistance to shock and vibration.
Good thermal coupling through screw-type case.
Metal housings are available in brass or stainless steel or Aluminum material.
Available for a variety of thread sizes.
Thermistor sensor assembly optional with O-ring sealing.

Resistance @25C

Beta Value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature range

10K ohm2%

3380K1%

20 seconds

5 MW/C

-30C+125C

Note: Alternative ratings on resistance,Beta value and cable length upon request.



silcon tube hair curler motor sensing thermistor 

temperature sensor
silcon tube hair curler motor 

sensing thermistor temperature sensor engineering drawing

Application: silicon tube thermistor temperature sensor probe for home electric appliances, hair beauty appliance, hair curler, hair straightener, other application inculdes motor temperature sensing, induction cooker, etc.
Silicon tube NTC thermistor temperature sensor probe features

Glass encapsulated NTC thermistor housed in silicon tube.
Wire cable in PTFE.
Quick response.

Resistance @25C

Beta Value
B(25/50C)

Thermal time constant

Dissipation factor

Operating temperature

100K ohm2%

3950K1%

12 sec

5 MW/C

-30C+200C

Note: Alternative ratings on resistance, Beta value and cable length upon request.


Glass NTC thermistor housed in protection 

tube

Glass coated NTC thermistor housed in protection tube

Protection tube is available in silica gel.
Cable material is available in either PTFE material, or PVC outside wraped with heat protection tube.


washing machine thermistor 

temperature sensor
washing machine NTC thermistor 

temperature sensor engineering drawing

Application: thermistor temperature sensor probe assembly for washing machine, dish washer, tumble dryer, boiler, etc.
Washing machine NTC thermistor temperature sensor features

Resistant to damp corrosive media, such as soapy water.
Excellent dielectric strength.

Resistance @60C

Beta Value
B(25/60)

Thermal time constant
(in water)

Voltage withstanding

Operating temperature

3.243K ohm

3760K

Max.20sec

3750VAC/2sec

-30C+130C

Note: Alternative ratings on resistance and Beta value upon request.


threaded copper vehicle thermistor temperature sensor probe
threaded copper vehicle thermistor temperature sensor 

engineering drawing

Threaded brass screw-in NTC thermistor temperature sensor assembly with integral automotive style shrouded connector for immersion application, popular for vehicle engine, oil, water temperature measurement. Also available for HVAC and industrial application, such as transport refrigeration, domestic heating and control, hot tub and pool temperature control.

Resistance @20C

Resistance @80C

Resistance @110C

Beta Value
B(20/110)

Thermal time constant
(in water)

Voltage withstanding

Operating temperature

2.473k ohm8%

0.321k ohm4%

0.144k ohm2.5%

3549k2%

10sec

1500V/5sec

-30C+130C


Rivet NTC thermistor temperature probe

Application: Rivet NTC thermistor temperature probe is ideal for harsh environments, easily attached to flat surface, application such as induction cooker, coffee maker, milk warmer, water heater, heating board, dryers, etc.


induction cooker diode thermistor temperature sensor 

probe

Application: thermistor temperature sensor probe assembly for temperature measurement and control in induction cooker etc.

Resistance @100C

Resistance @200C

Beta value
(100/200)

Thermal time constant

Dissipation factor

Operating temperature

6.282K ohm

0.5335K ohm

4300K

12 sec

5 MW/C

-30C+300C

Note: Alternative ratings on resistance and Beta value upon request.


Aluminum case induction cooker thermistor temperature sensor 

probe

NTC Thermistor is potted in Aluminum case, for temperature measurement and control in induction cooker, boiling water, etc.
Aluminum case induction cooker thermistor temperature sensor probe features

Epoxy filled Al cup, end is easy to attach to flat surface.
Construction provices maximum surface contact.


Clip on pipe thermistor sensor

Clip on pipe thermistor sensor description
The steel clip provides a dual function by holding the sensor housing rigidly in place on a straight section of copper tubing while also providing an excellent thermal connection from the copper tube to the sensor. Ideal for inlet or outlet refrigerant sensing, hot water tube, and other arc surface temperature measurement. Installation is fast and simple as the sensor assembly just snaps into place.
Clip on pipe thermistor sensor Features:
Direct clip application to pipe surface.Ideal for pipe clamp mount or rounded surface temperature measurement.
Quick response and excellent thermal tracking.
Simple installation, attaches directly to pipe surfaces.
Rugged, all-metal construction.

Flexible clamp thermistor temperature sensor

flexible clamp thermistor sensor
Flexible clamp thermistor sensor, ideal for pipe duct surface temperature measurement. Adjustable clamp diameter, easily field mounted.


MAIN  |  PRODUCTS  |  ABOUT US  |  CONTACT US © 2012 Copyright by AMWEI Thermistor