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THERMOCOUPLES101
Technical Library

Resources & Downloads

Essential reference charts, guides, and technical data to help you select and maintain your temperature sensing equipment.

Temperature Converter
Instantly convert between Celsius, Fahrenheit, and Kelvin scales.
Thermocouple Connector Size Guide
Visually identify whether you need a Miniature (Mini) or Standard size connector.
Miniature Thermocouple Connector

Miniature (Mini)

Compact design for space-constrained applications.

Flat PinsPins are flat spade-type blades.
Max Temperature400°F (205°C) Continuous
ApplicationsHandheld meters, lab equipment, tight spaces.
Wire Gauge LimitNot recommended for wire gauges larger than 24 AWG.
Standard Thermocouple Connector

Standard (Std)

Robust design for industrial environments.

Round PinsPins are solid round cylinders.
Max Temperature400°F (205°C) Continuous
ApplicationsIndustrial panels, heavy-duty machinery.
RTD Connectors (3-Pin)
Specialized connectors for Resistance Temperature Detectors (RTDs).
RTD Connectors

3-Pin Configuration

RTD connectors typically feature a 3-pin design to accommodate the 3-wire configuration common in industrial RTD sensors. This ensures accurate resistance measurement by compensating for lead wire resistance.

3 PinsTwo matching pins + one ground/compensation pin.
Max Temperature400°F (205°C) Continuous
White Color CodeStandard industry color for RTD connectors.
CompatibilityWorks with Pt100, Pt1000, and other RTD types.
Thermocouple Color Codes
Comprehensive guide to ANSI (USA) and IEC (International) color codes for Types K, J, T, E, N, R, S, and B. Includes magnetic properties.
  • ANSI & IEC Standards comparison
  • Visual wire jacket & conductor colors
  • Magnetic property indicators
Download PDF Chart
Temperature Ranges
Complete reference table for operating temperature ranges of all standard thermocouple types in both Celsius and Fahrenheit.
  • Min/Max ranges for Types K, J, T, E, N, R, S, B
  • Conductor material composition
  • Common application examples
Download PDF Chart
New Guide

How to Check Thermocouple Accuracy

Learn the ice bath and boiling water methods for verifying your thermocouple system. Covers grounded vs ungrounded vs exposed junctions, response time formulas, special limits of error (SLE), and proper bending techniques.

Read the Guide

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