NTC Thermistors Temperature Sensor Probe Assemblies
NTC Thermistors Temperature Sensor Probe Description
NTC Thermistors Sensor Assembly
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 tube NTC thermistor temperature sensor
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 NTC 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 ohm±1% | 3950K±1% | 5 MW/C | 10 sec | -30C～+105C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
epoxy air thermistor sensor
Application: NTC thermistor air temperature sensor for air conditioning, floor heating, and other HVAC application.
Epoxy air temperature sensor features
NTC 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 ohm±1% | 3950K±1% | 10 sec | 5 MW/C | -30C～+105C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
ABS Plastic NTC thermistor Temperature Sensor
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 ohm±1% | 3950K±1% | 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 probes
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, industrial 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.
NTC 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 ohm±2% | 3950K±1% | 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.
Round ring flat surface temperature measurement probe
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 ohm±1% | 3950K±1% | 1500V/2sec. | 15 sec | -30C～+200C |
Note: Alternative ratings on resistance, Beta value and cable upon request.
Screw-in-place NTC thermistor probe
screw-in-place thermistor probe
NTC thermistor Surface Temperature Probe, Metal Lug Housing
Surface mount housing, copper lug terminal, with stud mounting hole, jacketed cable, PVC insulation.
Stainless steel oven cooker roaster toaster NTC thermistor temperature sensor
Application: NTC 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 NTC 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 ohm ± 3% | 4537K | 15 sec | 5 MW/C | -30C～+250C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
Flag terminal NTC thermistor temperature sensor probe
Flag terminal NTC thermistor temperature sensor
Flag terminal NTC 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 NTC 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.
Spherical Ended Stainless Steel Probe
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 ohm±1% | 3950K | 15 sec | 1500V/ 2Sec | -40C～+105C |
Note: Alternative ratings on resistance and Beta value upon request.
Flared stainless steel tube NTC thermistor temperature probe
Flared stainless steel tube NTC thermistor temperature probe
Flared stainless steel tube NTC 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 B(25/85) |
Thermal Time Constant |
Dissipation Factor | Operating Temperature |
|---|---|---|---|---|
| 10K ohm±2% | 3977K±1% | 12 Sec | 5 MW/C | -30C～+105C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
Al tube bread maker thermistor temperature sensor
Al tube bread maker thermistor temperature sensor
Application: Aluminum tube NTC 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 NTC thermistor temperature sensor with 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(25/85C) |
Thermal Time Constant | Dissipation Factor | Operating Temperature |
|---|---|---|---|---|
| 10K ohm±1% | 3977K±1% | 25 sec | 5 MW/C | -30C～+120C |
Note: Alternative ratings on resistance and Beta value upon request.
Pointed tip stainless steel NTC thermistor temperature sensor
Pointed tip stainless steel NTC 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 ohm±1% | 3990K±1% | 15 sec | 5 MW/C | -30C～+250C |
Note: Alternative ratings on resistance and Beta value upon request.
Food Cooker Meat Probe
Meat probe is used to measure the temperature of cooking food. Application includes 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 | Operating Temperature |
|---|---|---|
| 1K ohm | 231K ohm | -40C～+250C |
Note: Alternative ratings such as NTC thermistor resistance 10k ohm, Beta value B25/85: 3435K and cable length upon request.
Hex head screw threaded water heater boilers NTC thermistor temperature sensor
Application: NTC 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 NTC 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 dimension.
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 ohm±1% | 3950K±1% | 7 sec | 5 MW/C | -30C～+105C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
M8 Threaded Stainless Steel NTC thermistor temperature sensor
Threaded stainless steel tube NTC 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 M8x1.0.
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 |
|---|---|---|---|---|
| 10K ohm±2% | 3950K±1% | 15 seconds | 5 MW/C | -30C～+105C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
- NTC thermistor housed in hex head M6 threaded nickel plated copper housing.
- O-ring can be supplied together for better sealing.
- Easy mounting with M6 Nut
- Immersion NTC thermistor temperature sensor, can be placed directly in the water flow, in direct water contact, to detect water liquid temperature.
- Ideal for vessel and pipe installation. Typical application water heater boilers, chiller system, water and oil tanks, industrial appliances, solar heating systems, etc.
| Resistance @25C | Beta Value B(25/50C) |
Thermal Time Constant |
Dissipation Factor | Operating Temperature |
|---|---|---|---|---|
| 10K ohm±2% | 3950K±1% | 15 seconds | 5 MW/C | -30C～+105C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
- NTC thermistor housed in Flat Head M6x1.0 Threaded 304 Stainless Steel Housing.
- Spring accessory available.
- Rugged, solid, available for multi-direction temperature measurement.
- Typical application include food processing appliance, Intellectual Temperature Control Meter, air conditioner, freezer, etc.
| Resistance @25C | Beta Value B(25/50C) |
Thermal Time Constant |
Dissipation Factor | Operating Temperature |
|---|---|---|---|---|
| 50K ohm±2% | 3950K±1% | 15 seconds | 5 MW/C | -30C～+105C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
- NTC thermistor 20k ohm part housed in hex head M5x0.8 threaded brass housing.
- Immersion NTC thermistor temperature sensor, can be placed directly in the water flow, in direct water contact, to detect water liquid temperature.
- Typical application vehicle accessories sensing, water heater boilers, chiller system, water and oil tanks, industrial appliances, solar heating systems, etc.
| Resistance @25C | Beta Value B(25/50C) |
Thermal Time Constant | Dissipation Factor | Operating Temperature |
|---|---|---|---|---|
| 20K ohm±1% | 3950K±1% | 5 MW/C | 15 sec | -30C～+125C |
Note: Alternative ratings on resistance, Beta value and cable length upon request.
Metal Housing Threaded Fitting NTC Thermistor Temperature Probes
Metal Housing Threaded Fitting NTC thermistor temperature probes
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 NTC 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.
NTC thermistor sensor assembly optional with O-ring sealing.
| Resistance @25C | Beta Value B(25/50C) |
Thermal Time Constant |
Dissipation Factor | Operating Temperature Range |
|---|---|---|---|---|
| 10K ohm±2% | 3380K±1% | 20 seconds | 5 MW/C | -30C～+125C |
Note: Alternative ratings on resistance,Beta value and cable length upon request.
Silicon tube NTC thermistor temperature sensor
Application: silicon tube thermistor temperature sensor probe for home electric appliances, hair beauty appliance, hair curler, hair straightener, other application includes 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 ohm±2% | 3950K±1% | 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 wrapped with heat protection tube.
Washing machine NTC thermistor temperature sensor
Washing machine NTC thermistor temperature sensor
Application: NTC 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 brass screw-in NTC thermistor temperature sensor
Threaded brass screw-in NTC thermistor temperature sensor
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 ohm±8% | 0.321k ohm±4% | 0.144k ohm±2.5% | 3549k±2% | 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.
Aluminum case NTC thermistor sensor
Aluminum case thermistor sensor
NTC thermistor is potted in Al case, for temperature measurement and control in induction cooker, boiling water, etc.
Al case induction cooker NTC thermistor temperature sensor probe features
Epoxy filled Al cup, end is easy to attach to flat surface.
Construction provides maximum surface contact.
Clip on pipe thermistor sensor
Clip on pipe NTC 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 NTC 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.
- NTC Thermistor housed in rectangular stainless steel housing with flat surface, ideal for surface contact sensing.
- Typical application radiator, industrial appliance, home appliance, etc.
- Water-proof, corrosion resistant.
- Commonly used NTC Resistance @25C 10k ohm, 100k ohm. Other resistance can be supplied upon request.
- Operating temperature: -40–+150C Centigrade.
Content Headline
Copper tube NTC thermistor temperature sensor
Epoxy air temperature sensor
ABS Plastic NTC thermistor temperature Sensor
Ring lug NTC thermistor surface temperature probes
200C D3.2mm screw-in-place sensor
1 Mounting hole stainless steel oven cooker roaster toaster NTC thermistor temperature sensor
Flag terminal NTC thermistor temperature sensor
Stainless steel NTC thermistor temperature sensor with 2 mounting holes
Food Cooker Meat Probe
Hex head screw threaded water heater boilers NTC thermistor temperature sensor
M8 Threaded stainless steel NTC thermistor temperature sensor
M6 Threaded Nickel Plated Copper NTC thermistor Probe Assembly
Flat Head M6 Threaded 304 Stainless Steel Housing NTC thermistor Sensor Assembly
M5 Threaded Brass NTC thermistor Sensor Assembly
Glass coated NTC thermistor housed in protection tube
Rivet NTC thermistor temperature probe
Clip on pipe thermistor sensor
Rectangular Stainless Steel Flat Surface NTC thermistor Temperature Probe
Technical Knowledge
NTC thermistor Glossary and Definition
How NTC thermistor beta value is calculated?
NTC thermistor Manufacturing Process and Quality Control
Applications Articles
How to Select NTC thermistor for Inrush Current Limiting?
NTC thermistor for temperature measurement and control selecting reference information.
Charging Control with AMWEI NTC thermistor
Reliable limiting of current surges by AMWEI NTC and PTC thermistor
How to Select Packaged Thermistor Temperature Sensor Probe Assembly ? 6 Steps