LM35 Temperature Sensor Probe | Linear Analog Voltage Output

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LM35 Temperature Sensor Probe | Linear Analog Voltage Output

Model：FST Series-LM35
Key Feature：1 μA/K Linear Current Output
MOQ(Standard)：500 pcs
MOQ(Customized)：TBD
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Description

Model：FST Series-LM35

Key Feature：1 μA/K Linear Current Output

MOQ(Standard)：500 pcs

MOQ(Customized)：TBD

Fucusens Solution

From LM35 Sensor IC to a Ready-to-Install Temperature Probe

A temperature sensor IC alone may not be ready for direct equipment installation. The complete sensor assembly also needs to match: Housing + Mechanical Structure + Cable + Connector + Mounting + Operating Environment.

Our Capability	What It Solves	Value to Your Business
LM35 Precision Sensor	Temperature measurement requires a stable analog signal	Linear temperature-related voltage output
Centigrade Scaling	Kelvin-based conversion adds processing steps	Easier Celsius temperature interpretation
Analog Voltage Output	Digital communication is not required	Simple controller integration
Custom Housing	Standard sensor package cannot be installed directly	Better mechanical compatibility
Custom Probe Size	Limited installation space	Matches equipment structure
Custom Cable	Standard cable does not fit application	Adapt insulation, gauge and length
Accessories Available	Additional installation parts may be required	Easier system integration

Typical Applications

Application	Typical Customer	Recommended Solution	Why This Configuration
Heating Systems	Heating equipment and controller manufacturers	LM35 analog temperature probe	Linear voltage output supports simple temperature feedback
Measuring Instruments	Instrument and measurement equipment manufacturers	Precision LM35 sensor assembly	Analog Celsius-scaled output supports measurement systems
Washing Machines	Appliance manufacturers	Customized LM35 temperature probe	Housing and cable can be matched to appliance installation
Over-Temperature Monitoring	Equipment and controller manufacturers	LM35 probe connected to analog control circuit	Temperature-related voltage can be used for monitoring logic
General Equipment Temperature Measurement	OEM equipment manufacturers	Customized LM35 sensor probe	Probe, cable and mounting can be adapted to equipment

Technical Specifications & Selection Guide

Parameter	Specification	Selection Notes
Sensor	LM35 Series Precision Centigrade Temperature Sensor	Precision integrated-circuit temperature sensor
Output	Analog Voltage Output	Voltage linearly proportional to Celsius temperature
Scale Factor	10 mV/°C	Direct Celsius-scaled analog output
Operating Temperature Range	-55°C to +150°C*	Depends on the specific LM35 device / grade used
Accuracy	Up to ±0.5°C at 25°C	Confirm accuracy over the actual operating range
Supply Voltage	4V to 30V	Match the controller / system supply
Supply Current	Less than 60 μA typical	Low self-heating and low current consumption
Non-Linearity	±0.25°C typical	According to LM35 device characteristics
Self-Heating	Approx. 0.08°C in still air	Depends on installation and thermal environment
Probe Housing	Customizable	Material, size and configuration according to mounting
Cable Insulation / Gauge / Length	Customizable	According to application and wiring requirements

Product Structure & Selection Guide

Temperature Range — Confirm normal and maximum operating temperature.

Required Accuracy — Confirm the measurement accuracy required by the application.

Output Interface — Make sure the controller accepts the LM35 analog voltage signal.

Probe Structure & Size — Match the installation space and sensing position.

Housing Material — Select according to mechanical and environmental requirements.

Cable Insulation / Gauge / Length — Match temperature, wiring distance and equipment design.

Connector / Accessories — Match the existing controller or wiring harness.

3 Common Mistakes When Selecting a Pipe-Mounted NTC Sensor

1. Treating LM35 as a Digital Temperature Sensor

LM35 provides a linear analog voltage output, not a 1-Wire digital signal.

Better: Confirm that your controller accepts an analog temperature signal.

2. Focusing Only on the Sensor IC

A bare IC may still require mechanical protection, wiring and mounting.

Better: Evaluate the LM35 + Housing + Cable + Installation as one complete solution.

3. Ignoring Cable and Installation Requirements

Even when the sensor itself is suitable, the finished probe must match the equipment structure.

Better: Confirm housing + cable + connector + mounting before sample production.

From LM35 Sensor IC to a Ready-to-Install Temperature Probe

Our Capability	What It Solves	Value to Your Business
LM35 Precision Sensor	Temperature measurement requires a stable analog signal	Linear temperature-related voltage output
Centigrade Scaling	Kelvin-based conversion adds processing steps	Easier Celsius temperature interpretation
Analog Voltage Output	Digital communication is not required	Simple controller integration
Custom Housing	Standard sensor package cannot be installed directly	Better mechanical compatibility
Custom Probe Size	Limited installation space	Matches equipment structure
Custom Cable	Standard cable does not fit application	Adapt insulation, gauge and length
Accessories Available	Additional installation parts may be required	Easier system integration

Application	Typical Customer	Recommended Solution	Why This Configuration
Heating Systems	Heating equipment and controller manufacturers	LM35 analog temperature probe	Linear voltage output supports simple temperature feedback
Measuring Instruments	Instrument and measurement equipment manufacturers	Precision LM35 sensor assembly	Analog Celsius-scaled output supports measurement systems
Washing Machines	Appliance manufacturers	Customized LM35 temperature probe	Housing and cable can be matched to appliance installation
Over-Temperature Monitoring	Equipment and controller manufacturers	LM35 probe connected to analog control circuit	Temperature-related voltage can be used for monitoring logic
General Equipment Temperature Measurement	OEM equipment manufacturers	Customized LM35 sensor probe	Probe, cable and mounting can be adapted to equipment

Technical Data

Parameter	Specification	Selection Notes
Sensor	LM35 Series Precision Centigrade Temperature Sensor	Precision integrated-circuit temperature sensor
Output	Analog Voltage Output	Voltage linearly proportional to Celsius temperature
Scale Factor	10 mV/°C	Direct Celsius-scaled analog output
Operating Temperature Range	-55°C to +150°C*	Depends on the specific LM35 device / grade used
Accuracy	Up to ±0.5°C at 25°C	Confirm accuracy over the actual operating range
Supply Voltage	4V to 30V	Match the controller / system supply
Supply Current	Less than 60 μA typical	Low self-heating and low current consumption
Non-Linearity	±0.25°C typical	According to LM35 device characteristics
Self-Heating	Approx. 0.08°C in still air	Depends on installation and thermal environment
Probe Housing	Customizable	Material, size and configuration according to mounting
Cable Insulation / Gauge / Length	Customizable	According to application and wiring requirements
Connector / Accessories	Available on request	According to equipment interface

Sensor Construction & Selection Guide

Temperature Range — Confirm normal and maximum operating temperature.

Required Accuracy — Confirm the measurement accuracy required by the application.

Output Interface — Make sure the controller accepts the LM35 analog voltage signal.

Probe Structure & Size — Match the installation space and sensing position.

Housing Material — Select according to mechanical and environmental requirements.

Cable Insulation / Gauge / Length — Match temperature, wiring distance and equipment design.

Connector / Accessories — Match the existing controller or wiring harness.

3 Common Mistakes When Selecting a Clamp-Mount NTC Sensor

1. Treating LM35 as a Digital Temperature Sensor

LM35 provides a linear analog voltage output, not a 1-Wire digital signal.

Better: Confirm that your controller accepts an analog temperature signal.

2. Focusing Only on the Sensor IC

A bare IC may still require mechanical protection, wiring and mounting.

Better: Evaluate the LM35 + Housing + Cable + Installation as one complete solution.

3. Ignoring Cable and Installation Requirements

Even when the sensor itself is suitable, the finished probe must match the equipment structure.

Better: Confirm housing + cable + connector + mounting before sample production.

Sensor Performance Is Only One Part of a Reliable Temperature Probe

For a complete AD590 sensor assembly, quality control should cover both the sensing element and the mechanical/electrical assembly.

Incoming Material Inspection

· LM35 sensing components checked according to confirmed specification

· Probe housing materials inspected before production

· Cable insulation and conductor specifications verified

· Connectors and accessories checked according to project requirements

Process Control

· Sensor wiring controlled during assembly

· Sensing element positioned according to probe design

· Probe dimensions checked against approved drawing

· Cable gauge and length verified

· Connector or termination checked before final assembly

Finished Product Inspection

Test Item	Verification
Sensor Function	Analog voltage output check
Temperature Measurement	According to confirmed test requirement
Probe Dimensions	According to approved drawing
Cable Length / Gauge	According to specification
Connector / Termination	According to confirmed interface
Electrical Connection	Functional verification
Appearance	Finished assembly inspection

If You Are an Equipment Manufacturer / OEM

Common Problem	What It Means for Your Business
The controller needs a simple analog temperature signal	Digital communication may add unnecessary system complexity
Standard probe dimensions do not fit	Different equipment requires different housing and mounting structures
Bare LM35 IC cannot be installed directly	Housing, cable and mechanical protection are still required
Cable specifications do not match the equipment	Incorrect insulation, gauge or length requires modification
The sensor output must integrate with existing analog circuitry	Electrical compatibility needs to be confirmed before production
Different products need different probe structures	One standard assembly cannot cover every application

If You Are a Distributor / Importer

Common Problem	What It Means for Your Business
Customers need different housings	One standard probe cannot cover every project
Customers require different cable specifications	Fixed wire configurations limit OEM opportunities
Some customers need analog rather than digital sensors	A digital-only product range cannot cover all control systems
Customers need ready-to-install assemblies	Bare sensor ICs require additional processing
Technical matching takes too long	Sensor, housing, cable and interface must be confirmed together

Need More Than an LM35 Sensor IC?

The LM35 provides the temperature-sensitive analog signal, but your equipment still needs the correct: Housing + Probe + Cable + Connector + Mounting Structure

Send us your drawing, existing sensor or application requirements.Get an LM35 Temperature Sensor Probe Configured for Your Equipment.

Sample Support

Standard Samples — Available according to current specifications and stock.

Customized Samples — Available after specification confirmation.

Housing Customization — Size and configuration according to mounting requirements.

Cable Customization — Insulation, gauge and length according to application.

Connector / Accessories — Available according to equipment interface.

Technical Support — Support for LM35 probe integration and application matching.

Sample Validation Before Mass Production

We recommend confirming: Temperature Measurement → Analog Output → Probe Structure → Housing → Cable → Connector → Installation. For customized assemblies, testing the sample under the actual installation condition is recommended before mass production.

Quality Assurance

Sensor Component — According to confirmed LM35 specification.

Probe Dimensions — According to approved drawing.

Cable — According to confirmed insulation, gauge and length.

Connector / Accessories — According to equipment interface.

Customized Products — Specifications confirmed before mass production.

Finished Assembly — Functional verification before shipment.

MOQ & Lead Time

Standard Product MOQ — Contact us for current MOQ.

Customized MOQ — Depends on housing, cable and accessory requirements.

Standard Lead Time — Contact us for current production schedule.

Customized Lead Time — Depends on assembly configuration.

Sample Lead Time — Confirmed after specification review.

Cooperation Process: Application Review → Temperature Range Confirmation → Output Interface Confirmation → Probe Design → Cable / Connector → Drawing Approval → Sample Testing → Pilot Order → Mass Production

Q1: What sensor is used?

The product uses an LM35 series precision integrated-circuit temperature sensor.

Q2: What type of output does LM35 provide?

It provides a linear analog voltage output proportional to Celsius temperature.

Q3: Is LM35 a digital sensor?

No. LM35 is an analog voltage-output temperature sensor.

Q4: What is the main advantage of Centigrade scaling?

The output is directly related to Celsius temperature, so the user does not need to subtract a large Kelvin offset to obtain °C measurement.

Q5: Can the probe housing be customized?

Yes. Housing material, size and configuration can be adjusted according to mounting requirements.

Q6: Can the cable be customized?

Yes. Cable insulation, gauge and length can be adapted according to project requirements.