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TEMPERATURE
SENSORS

Miniature Sensors

Minco’s miniature temperature sensors were originally designed as embedment sensors in bearing shoes to protect rotating machinery from potentially catastrophic overheating events. While this application remains a mainstay, the use of these sensors has expanded into medical diagnostic, semicon, aerospace, oil and gas, food and beverage, and industrial equipment. These small-profile sensors save space and weight while providing fast thermal response time and designs suitable for high levels of vibration. Minco miniature sensors are available in single or dual element RTDs and thermocouples — as well as in a multitude of standard and custom case designs to fit your unique needs. Special features include: spring-loading, connectors and hazardous area certifications to further enhance the value of these sensors.

miniature sensor

MINCO OFFERS A VARIETY OF MINIATURE SENSORS:

Minco Miniature Sensors Product Offering

Minco Miniature Sensor Product Offering

For our full product offering, see the  Minco Temperature Sensor and Instrument Guide.

Embedment RTDs

Install miniature sensors in our beneath the babbitt layer of bearing shoes.  They monitor metal temperature – the most reliable indicator of bearing condition – to give early warning of oil film breakdown.  Machines can then be shut down and the problem corrected before catastrophic failure occurs.  

While no larger than many bare ceramic elements, these RTDs have metal cases and insulated leads to withstand rough handling and harsh environments.  They are easy to install in drilled holes for general purpose sensing.

Embedment RTD Specifications

Temperature range: -50 to 260°C (-58 to 500°F). 

Case: Tin plated copper alloy. Models S12414, S13282 and S101910: Stainless steel. 

Babbitt tip: Factory applied babbitt tip, available on case style A or B, reduces the danger of overheating the sensor when installed in babbitt layer. 

Leads: Stranded copper with PTFE insulation; stainless steel overbraid optional (one sleeve covers all leads). Polyimide insulation available on selected models (See specification and order options). 

Time constant:  3.0 seconds (case style A) to 1.5 seconds (case style D), typical value in moving water

Insulation resistance:  10 megohms min at 100 VDC, leads to case

*MIL-T-24388C qualified models: PRT-EM-E2: Order S11636PA3K36B1. NRT-EM-E1: Order S11636NA3K36B1.

Leadwire size (AWG):

 

Specification and order options

Embedment Thermocouples

Embedment Thermocouple Specifications

These thermocouples are mechanically interchangeable with the RTDs listed above

Temperature range: -184 to 260°C (-300 to 500°F).

Copper-Constantan (Type T): AWG 24: 200°C (392°F) maximum, AWG 30: 150°C (302°F) maximum.

Time constant: Typical value in moving water: Grounded junction: 0.3 seconds. Ungrounded junction: 6 seconds (case style A) to 1 second (case style C).

Insulation resistance: 10 megohms min. at 100 VDC, leads to case, ungrounded junctions only.

Case: Tin plated copper alloy.

Babbitt tip: Factory applied babbitt tip, available on case styles A and B, reduces the danger of overheating the sensor when installed in babbitt layer.

Leads: See table for sizes and options. Dual element models with AWG 24 stranded leadwires are available with a single stainless steel braid over all four wires. This option is recommended for use with integral feedthroughs. See below for more information.

Specification and order options

Hazardous Area Embedment Sensors

Install miniature sensors in or beneath the babbitt layer of bearing shoes. They monitor metal temperature—the most reliable indicator of bearing condition—to give early warning of oil film breakdown. With predictive maintenance, machines can be shut down and the problem corrected before catastrophic failure occurs. While no larger than many bare ceramic elements, these RTDs have metal cases and insulated leads to withstand rough handling and harsh environments. They are easy to install in drilled holes for general purpose sensing.

Agency Certifications 

Tri-certified for use in hazardous areas to IECEx, ATEX and North American (CSA USA and CSA Canada) requirements. These wide-ranging certifications allow users to cover many potential certification requirements with one sensor product, thus increasing flexibility and reducing inventory. For more information see the Certifications box to the right.

Hazardous Area Embedment Sensor Specifications

Temperature range: -60°C to 200°C (-76°F to 392°F),

Reducing to 180°C (356°F) for FEP jacket on cable options;

Reducing to 125°C (257°F) for elastomer filled cable options;

Reducing to -20°C to 149°C (-4°F to 300°F) for feedthrough options.

Babbitt tip: Factory applied babbitt tip, available on case style A, reduces the danger of overheating the sensor when installed in babbitt layer.

Time constant: 3.0 seconds (case style A) to 1.5 seconds (case style D), typical value in moving water.

Insulation resistance: 10 megohms min. at 100 VDC, leads to case and to stainless steel braid and feedthrough cases when specified.

Dielectric strength: 600 Volts RMS at 60 Hz for 2 seconds with a maximum leakage of 5mA, leads to case and to stainless steel braid and feedthrough cases when specified.

Lead wire colors can be specified in part number make up per IEC 60751 or Minco standard lead wire conventions.

Special options: Calibration data and tagging options are also available; contact Minco for details.

 

 

 

Case Styles

Hazardous Area Embedment Sensor Specifications - RTD

RTD Sensing Element
Specifications and Options - RTD

Hazardous Area Embedment Sensor Specifications - Thermocouple

Leadwire size (AWG)
Specifications and Options - Thermocouple

Bolt-on RTDs

Bolt-on temperature sensors are designed for easy installation in industrial and commercial environments. The sensors can be mounted on machines, against process pipes, or embedded directly into a machined part. Threaded fasteners install in seconds and can be easily removed for installation at another location.

These sensors are ideal for process control measurements, test and verification of existing systems, and retrofitting existing machines. Standard designs allow prototyping without high setup costs, while significant discounts are available for large quantities.

Standard platinum and nickel RTD elements provide stable and reliable output compatible with most control and monitoring systems. Physically interchangeable designs allow you to easily customize your installation to different instrumentation. Minco can also provide custom RTD, thermistor or thermocouple elements in these packages, or specialized case designs to meet your application needs.

Removable and reusable

Wide temperature range

Configurations to fit most applications

Standard 100 Ω platinum, 1000 Ω platinum and100 Ω nickel elements

Bolt-on RTD Specifications

Time constant: Less than 10 seconds in moving water.

Insulation resistance: 10 megohms minimum at 100 VDC, leads to case.

Vibration: Withstands 10 to 2000 Hz at 20 G’s minimum per MIL-STD-202. Method 204, test condition D.

Bolt-on Specifications and order options

Economy RTDs

Economy sensors are designed to be a component of your final assembly. With insulated leads pre-attached and strain relieved, final construction is easy and reliable.

• Insulated leads of variable length, installed and strain relieved

• Wide temperature range

• Configurations to fit most applications

• Standard 100 Ω platinum, 1000 􀀁 platinum and 120 Ω nickelelements

Economy RTD Specifications

Insulation resistance: 10 megohms minimum at 100 VDC, leads to case.

Vibration: Withstands 10 to 2000 Hz at 20 G’s minimum per MIL-STD-202. Method 204, test condition D.

Specifications and order options

Need help building the right part?

Get technical information around our sensor offerings — or build a part number according to your specifications through our product guide.

Looking for a customized sensing solution?

Half of the sensors we produce are custom-engineered designs developed for challenging applications. Our Engineers are ready to help.

Interested in a standard part?

We’re here to help you find exactly what you need.

ALL TEMPERATURE SENSOR SOLUTIONS

ABOUT MINCO

For more than 60 years, Minco has designed and manufactured heating, flex circuit, temperature sensing and instrumentation solutions for some of the world’s most demanding applications.

PRODUCTS

Address a specific design challenge or customize fully integrated solutions with Minco’s proven product lines.

Thermal performance for standard and custom use cases — from environment stabilization to faster thermal cycling.

Accurately sense and measure temperature, humidity and fluid levels across a wide range of applications.

Achieve new design freedom with flex circuit solutions that improve reliability in a condensed package size.

System-matched controllers complement Minco sensors and heaters to deliver improved system accuracy.

Leverage decades of engineering expertise to design integrated solutions that enhance performance and reduce cost.
Learn more about Minco’s approach to design innovation – and consider joining the team.