Surface Mount NTC Temperature Sensor with Lug Terminal

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Surface Mount NTC Temperature Sensor with Lug Terminal for HVAC Applications

Model：MFP-2 Series
Key Feature：Surface Mount Design
MOQ(Standard)：500 pcs
MOQ(Customized)：TBD
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Description

Model：MFP-2 Series
Key Feature：Surface Mount Design

MOQ(Standard)：500 pcs

MOQ(Customized)：TBD

Fucusens Solution

Fucusens Lug Terminal NTC Temperature Sensor combines an NTC thermistor with a metal mounting lug for direct surface installation. Depending on the equipment design, the lug can use a ring-lug or other screw-mount configuration. This provides a practical, ready-to-install solution for motors, batteries, heat sinks and other surface temperature monitoring applications.

Our Capability	Value for Equipment Manufacturers	Value for Distributors / Importers
Direct screw-mount design	Fix directly to the measured surface → simple and secure installation	Easy-to-understand solution for multiple industries
Lug terminal structure	No additional mounting bracket required → less assembly work	More convenient for end customers
Different mounting hole sizes available	Match existing screw sizes and installation positions	Serve customers with different mechanical requirements
Various NTC R and B values available	Match different controllers and R-T curves	Cover more customer specifications
-30°C to +150°C temperature range	Suitable for appliance and equipment temperature monitoring	Wider application coverage
Multiple terminal structures available	Select the appropriate structure for the installation	One product family can cover different customer applications
Custom cable options	Match operating temperature and wiring requirements	Better support for OEM projects
Ready-to-use sensor assembly	Reduce secondary fabrication and assembly work	Higher value than supplying a bare thermistor
Flexible customization	Mounting size, NTC parameters, cable and materials can be matched to the application	Easier to accept non-standard projects

Typical Applications

Application	Typical Customer	Recommended Solution	Why This Configuration
Motor Temperature Monitoring	Motor and drive manufacturers	Screw mount NTC with temperature-resistant cable	Direct surface mounting and easy installation
Lithium Battery / Battery Pack Protection	Battery pack, BMS and energy storage manufacturers	Ring lug or customized lug terminal NTC sensor	Secure mechanical fixing at the required battery monitoring point; NTC R/B values and lead length can be customized
Heat Sink & Power Module Temperature Monitoring	Power supply, inverter and power electronics manufacturers	Compact lug terminal NTC sensor	Direct contact with heat sink or metal mounting surface for thermal protection and fan/control feedback
Projector / High-Power Electronics Thermal Management	Projector, lighting and electronic equipment manufacturers	Compact screw-mount NTC sensor	Small installation footprint and direct mounting near heat-generating components
Heated Plate / Heating Element Surface Monitoring	Heating equipment and thermal processing equipment manufacturers	High-temperature cable + customized lug terminal NTC sensor	Suitable for direct monitoring of heated metal surfaces within the sensor's temperature range
Custom Equipment Surface Temperature Monitoring	OEM equipment manufacturers	Customized lug terminal NTC sensor	Terminal shape, mounting hole, cable, NTC resistance and B value can be matched to the customer's existing structure

Technical Specifications & Selection Guide

Parameter	Specification	Notes
Product Type	Lug Terminal NTC Temperature Sensor	For direct surface temperature measurement
Internal Series / Model	MFP-2	Product identification
Sensing Element	NTC Thermistor	Various R and B values available on request
Temperature Range	-30°C to +150°C	Standard specified range
Mounting Type	Lug Terminal / Screw Mount	Ring lug or other mounting-lug styles depending on structure
Response Time	T0.63 ≤30 s in water at 0.4 m/s	Under specified test conditions
Dissipation Factor	≥2.5 mW/°C	According to technical data
Long-Term Stability	Drift ≤3% after 1,000 h heat or cold storage at 80°C / -30°C	According to specified storage conditions
Dielectric Strength	1500 VAC	Electrical insulation performance
Insulation Resistance	≥100 MΩ @ 500 VDC	High insulation resistance
Mounting Hole Size	Various sizes available	Matched to screw size and lug geometry
Lug Material	Cu / SUS / Brass options depending on structure	Selected according to mechanical and thermal requirements
Cable	Customizable	Teflon / fiberglass options available for applicable designs
Cable Length	Customizable	According to installation requirements
NTC Resistance	Various values available	According to controller requirements
B Value	Various values available	According to required R-T curve
Customization	Available	Mounting, NTC, cable and materials

Product Structure & Selection Guide

Component	Function	What to Consider
NTC Thermistor	Temperature sensing element	R25 resistance, B value and tolerance
Lug Terminal	Provides surface contact and screw mounting	Lug style, hole diameter, dimensions and material
Mounting Screw	Fixes the sensor to the target surface	Existing screw size and mounting position
Cable	Transfers temperature signal	Temperature resistance, insulation and cable length
Insulation / Encapsulation	Protects electrical connections	Operating temperature and application environment
Terminal Material	Provides mechanical mounting and thermal transfer	Application, mechanical requirements and environment

Available Sensor Configurations

Configuration	Typical Features	Suitable Applications
Motor / Battery Mounting Type	Cu or SUS terminal with temperature-resistant cable options	Motor temperature monitoring, lithium battery protection
Compact Brass Lug Type	Brass terminal with compact encapsulated sensing structure	Heat sinks, projectors and electronic equipment
Heat Sink Surface Type	Compact surface contact structure	Heat sink and power electronics temperature monitoring
Extended Lead Type	Copper mounting structure with customizable lead dimensions	Motors, battery systems and heating equipment

Lug terminal is used here as the general category. Depending on the mechanical design, the mounting lug may be a ring lug or another screw-mount style. Final geometry should be selected from the customer drawing, screw size and installation space.

Mounting dimensions can be selected or customized according to your equipment.

3 Common Mistakes When Selecting a Lug Terminal NTC Sensor

Common Mistake	Why It Causes Problems	Better Approach
Any 10K NTC sensor will work.	Two 10K thermistors may use different B values and therefore have different resistance-temperature curves.	Confirm R25 + B Value + Tolerance before ordering.
If the lug terminal fits, the sensor is compatible.	Mechanical fit does not guarantee electrical compatibility with your controller.	Confirm both mounting dimensions and NTC parameters.
The mounting hole only needs to be approximately the right size.	A hole that is too small cannot be installed, while an oversized hole may reduce mounting stability.	Provide the mounting screw size, required hole diameter or equipment drawing.

Our Capability	Value for Equipment Manufacturers	Value for Distributors / Importers
Direct screw-mount design	Fix directly to the measured surface → simple and secure installation	Easy-to-understand solution for multiple industries
Lug terminal structure	No additional mounting bracket required → less assembly work	More convenient for end customers
Different mounting hole sizes available	Match existing screw sizes and installation positions	Serve customers with different mechanical requirements
Various NTC R and B values available	Match different controllers and R-T curves	Cover more customer specifications
-30°C to +150°C temperature range	Suitable for appliance and equipment temperature monitoring	Wider application coverage
Multiple terminal structures available	Select the appropriate structure for the installation	One product family can cover different customer applications
Custom cable options	Match operating temperature and wiring requirements	Better support for OEM projects
Ready-to-use sensor assembly	Reduce secondary fabrication and assembly work	Higher value than supplying a bare thermistor
Flexible customization	Mounting size, NTC parameters, cable and materials can be matched to the application	Easier to accept non-standard projects

Application	Typical Customer	Recommended Solution	Why This Configuration
Motor Temperature Monitoring	Motor and drive manufacturers	Screw mount NTC with temperature-resistant cable	Direct surface mounting and easy installation
Lithium Battery / Battery Pack Protection	Battery pack, BMS and energy storage manufacturers	Ring lug or customized lug terminal NTC sensor	Secure mechanical fixing at the required battery monitoring point; NTC R/B values and lead length can be customized
Heat Sink & Power Module Temperature Monitoring	Power supply, inverter and power electronics manufacturers	Compact lug terminal NTC sensor	Direct contact with heat sink or metal mounting surface for thermal protection and fan/control feedback
Projector / High-Power Electronics Thermal Management	Projector, lighting and electronic equipment manufacturers	Compact screw-mount NTC sensor	Small installation footprint and direct mounting near heat-generating components
Heated Plate / Heating Element Surface Monitoring	Heating equipment and thermal processing equipment manufacturers	High-temperature cable + customized lug terminal NTC sensor	Suitable for direct monitoring of heated metal surfaces within the sensor's temperature range
Custom Equipment Surface Temperature Monitoring	OEM equipment manufacturers	Customized lug terminal NTC sensor	Terminal shape, mounting hole, cable, NTC resistance and B value can be matched to the customer's existing structure

Motor Temperature Sensor

Motors generate heat continuously during operation. Monitoring motor surface temperature can help the control system detect abnormal temperature rise and provide protection.

· Motor over-temperature protection

· Motor housing temperature monitoring

· Drive system thermal management

· Industrial equipment protection

· Motor control feedback

Lithium Battery Temperature Sensor

Temperature is one of the key parameters used in lithium battery protection and thermal management. A lug terminal NTC sensor can be mechanically secured to the required monitoring point.

· Lithium battery packs

· Battery modules

· Energy storage systems

· Battery protection systems

· Charging systems

· Battery thermal monitoring

Heat Sink Temperature Sensor

Heat sinks are widely used to transfer heat away from power electronic components. A lug-mount NTC sensor can be fixed directly to the heat sink to provide temperature feedback for:

· Power supplies

· Power modules

· Inverters

· LED systems

· Projectors

· Industrial electronics

· Thermal protection circuits

Projector Temperature Sensor

Projector systems contain multiple heat-generating components. Temperature monitoring can help support:

· Fan control

· Thermal management

· Over-temperature protection

· Component protection

Parameter	Specification	Notes
Product Type	Lug Terminal NTC Temperature Sensor	For direct surface temperature measurement
Internal Series / Model	MFP-2	Product identification
Sensing Element	NTC Thermistor	Various R and B values available on request
Temperature Range	-30°C to +150°C	Standard specified range
Mounting Type	Lug Terminal / Screw Mount	Ring lug or other mounting-lug styles depending on structure
Response Time	T0.63 ≤30 s in water at 0.4 m/s	Under specified test conditions
Dissipation Factor	≥2.5 mW/°C	According to technical data
Long-Term Stability	Drift ≤3% after 1,000 h heat or cold storage at 80°C / -30°C	According to specified storage conditions
Dielectric Strength	1500 VAC	Electrical insulation performance
Insulation Resistance	≥100 MΩ @ 500 VDC	High insulation resistance
Mounting Hole Size	Various sizes available	Matched to screw size and lug geometry
Lug Material	Cu / SUS / Brass options depending on structure	Selected according to mechanical and thermal requirements
Cable	Customizable	Teflon / fiberglass options available for applicable designs
Cable Length	Customizable	According to installation requirements
NTC Resistance	Various values available	According to controller requirements
B Value	Various values available	According to required R-T curve
Customization	Available	Mounting, NTC, cable and materials

Product Structure & Selection Guide

Component	Function	What to Consider
NTC Thermistor	Temperature sensing element	R25 resistance, B value and tolerance
Lug Terminal	Provides surface contact and screw mounting	Lug style, hole diameter, dimensions and material
Mounting Screw	Fixes the sensor to the target surface	Existing screw size and mounting position
Cable	Transfers temperature signal	Temperature resistance, insulation and cable length
Insulation / Encapsulation	Protects electrical connections	Operating temperature and application environment
Terminal Material	Provides mechanical mounting and thermal transfer	Application, mechanical requirements and environment

Available Sensor Configurations

Configuration	Typical Features	Suitable Applications
Motor / Battery Mounting Type	Cu or SUS terminal with temperature-resistant cable options	Motor temperature monitoring, lithium battery protection
Compact Brass Lug Type	Brass terminal with compact encapsulated sensing structure	Heat sinks, projectors and electronic equipment
Heat Sink Surface Type	Compact surface contact structure	Heat sink and power electronics temperature monitoring
Extended Lead Type	Copper mounting structure with customizable lead dimensions	Motors, battery systems and heating equipment

Mounting dimensions can be selected or customized according to your equipment.

3 Common Mistakes When Selecting a Lug Terminal NTC Sensor

Common Mistake	Why It Causes Problems	Better Approach
Any 10K NTC sensor will work.	Two 10K thermistors may use different B values and therefore have different resistance-temperature curves.	Confirm R25 + B Value + Tolerance before ordering.
If the lug terminal fits, the sensor is compatible.	Mechanical fit does not guarantee electrical compatibility with your controller.	Confirm both mounting dimensions and NTC parameters.
The mounting hole only needs to be approximately the right size.	A hole that is too small cannot be installed, while an oversized hole may reduce mounting stability.	Provide the mounting screw size, required hole diameter or equipment drawing.

For a screw mount NTC sensor, the thermistor itself is only one part of the complete solution. Reliable performance also depends on NTC consistency, electrical connection, insulation, lug terminal structure, mounting dimensions and cable reliability.

Incoming Material Inspection

· NTC thermistors are checked according to the required resistance and B value.

· Lug terminal materials are inspected before production.

· Cable materials are checked according to the required temperature and application.

· Insulation and encapsulation materials are verified according to the sensor specification.

Process Control

· NTC-to-wire connections are controlled for electrical reliability.

· Th sensing element is correctly positioned inside the terminal structure.

· Insulation and encapsulation are applied according to the approved design.

· Mounting hole and lug dimensions are checked during production.

· Customized products are manufactured according to confirmed drawings and specifications.

Finished Product Inspection

Test Item	Specification	Purpose
NTC Resistance	According to confirmed specification	Verify electrical characteristics
B Value / R-T Curve	According to required NTC specification	Ensure controller compatibility
Temperature Range	-30°C to +150°C	Confirm application suitability
Response Time	T0.63 ≤30 s in water at 0.4 m/s	Verify response under specified test conditions
Dissipation Factor	≥2.5 mW/°C	Verify thermal characteristics
Long-Term Stability	Drift ≤3% after 1,000 h heat or cold storage at 80°C / -30°C	Verify long-term stability
Dielectric Strength	1500 VAC	Verify electrical insulation
Insulation Resistance	≥100 MΩ @ 500 VDC	Ensure insulation reliability
Mounting Dimensions	According to approved drawing	Ensure correct installation
Appearance	No obvious structural or insulation defects	Verify finished assembly quality

Why Does the Lug Terminal Structure Matter?

In applications such as motors, lithium battery packs and heat sinks, the required measurement point is usually a solid surface. Using a conventional temperature probe may require additional clips, mounting brackets, adhesive fixing, extra machining or manual positioning. These additional operations increase production work and may create variations in sensor placement.

A lug terminal NTC sensor can be fixed directly to the target surface using an existing mounting screw.

Installation can be as simple as: Position the Sensor → Tighten the Screw → Connect the Cable → Start Measuring

If You Are an Equipment Manufacturer / OEM

Common Problem	What It Means for Your Business
The sensor is difficult to mount securely	Poor fixing or unstable surface contact may affect temperature sensing consistency.
Standard mounting holes do not fit your equipment	Motors, battery packs, heat sinks and other devices may require different screw sizes and lug dimensions.
The sensor still needs additional fabrication before installation	Adding terminals, fixing parts or insulation increases assembly time and labor cost.
The temperature range is not enough for your application	Motors, heat sinks and heating equipment may operate at higher temperatures than standard appliance sensors can handle.
Standard cable or terminal configurations do not fit your design	Different applications require different cable materials, lengths, lug terminals and installation structures.

If You Are a Distributor / Importer

Common Problem	What It Means for Your Business
Different customers require different mounting hole sizes	One standard lug terminal cannot cover motors, batteries, heat sinks and other equipment.
Customers use different NTC resistance and B values	A limited product range makes it difficult to match different controllers and applications.
Standard thermistors require secondary processing	Customers may still need to add terminals, cables or mounting parts before installation.
Your supplier offers limited customization	You may lose OEM projects requiring special lug dimensions, cable lengths or NTC parameters.
Too many application-specific models increase inventory pressure	Stocking separate products for motors, batteries, HVAC and heat sinks makes inventory management more difficult.
Slow technical support delays customer projects	Customers often need help confirming NTC parameters, mounting sizes and cable options before placing an order.

If any of these challenges sound familiar, our Lug Terminal NTC Temperature Sensor provides a practical way to integrate secure surface temperature sensing directly into your equipment.

Comparison	Typical Thermistor Solution	Our Solution	Value to Your Business
Mounting Method	Extra fixing structure may be required	Direct screw mounting	Faster installation
Surface Contact	Depends on manual positioning	Lug terminal fixed directly to the target surface	More consistent installation
Installation	Secondary fabrication may be required	Ready-to-install assembly	Saves production time
Mounting Hole	Fixed size	Different sizes available	Fits different equipment
NTC Specification	Limited options	Various resistance and B values available	Easier controller matching
Temperature Range	Limited by standard configuration	-30°C to +150°C	Covers more applications
Cable	Standard cable only	Cable material and length can be customized	Better environmental compatibility
Terminal Structure	Standard type	Different lug terminal structures available	Greater installation flexibility
Customization	Limited	NTC + mounting + cable + material customization	Better support for OEM/ODM projects
Ease of Use	Additional work may be required	Can be supplied ready for installation	Reduces customer assembly workload

For Equipment Manufacturers / OEM Buyers

Q1: What is a lug terminal NTC temperature sensor?

A lug terminal NTC temperature sensor combines an NTC thermistor with a metal mounting lug for direct contact with a solid surface. Depending on the mechanical design, the lug may be a ring lug or another screw-mount style. This makes the sensor suitable for motors, batteries, heat sinks and other surface temperature monitoring applications.

Q2: What applications is this sensor suitable for?

Typical applications include motors, lithium batteries, heat sinks, projectors, HVAC equipment, refrigerators and heating equipment. The final configuration depends on the operating temperature, NTC parameters and installation requirements.

Q3: What temperature range is available?

The specified temperature range is -30°C to +150°C. Cable, insulation and terminal materials should also be selected according to the actual operating environment.

Q4: Can I choose different NTC resistance and B values?

Yes. Various NTC resistance and B values are available on request. For accurate matching, please provide R25 Resistance + B Value + Tolerance. If you are replacing an existing sensor, you can also send us the existing datasheet or R-T table.

Q5: Can the mounting hole size be customized?

Yes. Mounting dimensions can be selected or customized according to your screw size and equipment structure. Please provide screw size + required hole diameter + available installation space, or simply send us your drawing.

Q6: Can the sensor be supplied ready for installation?

Yes. Once the NTC parameters, terminal structure, cable and dimensions are confirmed, the sensor can be supplied as a complete assembly for direct installation. This helps reduce additional fabrication at your factory.

Q7: What cable materials are available?

Teflon and fiberglass cable options are available for applicable configurations. Other cable requirements should be selected according to the operating temperature and environment.

For Distributors / Importers

Q8: Can you supply different lug terminal sizes and styles?

Yes. Different lug structures and mounting hole sizes can be supplied according to the application. Ring-lug configurations are available where suitable, while other screw-mount lug styles can also be evaluated from your drawing or existing sample. Please provide the screw size, hole diameter and available mounting space.

Q9: Can you customize the sensor for my customer's equipment?

Yes. Please send us the drawing + existing sensor photo + screw size + mounting dimensions + NTC parameters + cable requirements.

Q10: Can one product family cover different applications?

Yes. By adjusting the NTC element, terminal structure, cable and mounting dimensions, the sensor can be adapted for motors, batteries, heat sinks, projectors, HVAC and other equipment.

Q11: Can you replace my customer's existing lug terminal sensor?

Yes. Send us the existing sensor drawing / datasheet / photos / sample. We can compare NTC parameters + mounting hole + lug dimensions + cable + temperature requirement before recommending a replacement solution.

Questions from Both OEM Buyers and Distributors

Q12: What information do you need for a quotation?

For a faster quotation, please provide application + R25 + B value + temperature range + mounting screw size + lug dimensions + cable length + quantity.

Q13: Can I test samples before mass production?

Yes. Sample validation is recommended, especially for customized sensors. We suggest checking both electrical performance and mechanical installation before mass production.