KTY81-210 Sensor: Reliable and Precise Temperature Monitoring for Various Applications

KTY81-210 Product Overview

Our KTY81-210 is a Resin Coated KTY Sensor that can alternative for SOD70 type KTY81-210 Temperature Sensor from the renowned KTY Sensor series, offering accurate temperature measurements for a variety of applications. This KTY81-210  is widely recognized for its precision, stability, and reliability in harsh environments. It’s ideal for use in automotive systems, industrial equipment, and other temperature-sensitive applications.

Applications of KTY81-210

The KTY81-210 Temperature Sensor is suitable for multiple temperature control and monitoring applications, mainly including:

• Automotive systems
• HVAC (Heating, Ventilation, and Air Conditioning)
• Industrial process control
• Medical devices
• Consumer electronics
• Temperature measurement and control systems

KTY Sensor ' s high accuracy and robust design make it a popular choice across various industries.

Key Advantages of KTY Sensor

The KTY81 offers several advantages that make it a preferred option for temperature sensing:

• High accuracy: KTY Sensor ensures precise temperature measurements.
• Long-term stability: Minimal drift over time.
• Wide operating range: Effective from -40°C to +80°C.
• RoHS-compliant: Environmentally friendly and meets safety standards.
• Low self-heating: KTY Sensor ensures accurate readings by minimizing sensor heating effects.
• Linear Characteristics: The output characteristics of KTY81-210 Temperature Sensor are virtually linear, simplifying the interpretation of readings.

Main Features of KTY81-210

KTY Sensor Main Specifications

Item	KTY81-210 Parameter	Test Condition	Value
1	Resistance at 25°C (R25)	Ta=25±0.05℃; PT≦0.1mw	R25=2000Ω±1% TC=7900PPM
2	Resistance at 100℃ (R100)	Ta=100±0.1℃;PT≦0.1mw	R100=3392Ω±2%
3	Temperature coefficient (TC25)		0.79 %/K
4	Dissipation factor (σ)	Ta=25±0.5℃	≧10 mW/°C,
5	Thermal Time constant	Ta=25±0.5℃	≦30 Sec
6	Insulation Resistance	500VDC	≧50 MΩ
7	High-voltage Insulation Test	1200VAC	≧5 S
8	Operating Temperature	/	-40℃ ~ 80℃

KTY Sensor Dimensions

Item	Material Name	KTY81-210 Temperature Sensor Specification	Remarks
1	Thermistor	KTY Sensor R25=2000Ω±1% TC=7900PPM	1PCS
2	Epoxy Resin	J-106AB Black	1PCS
3	Lead Wire	UL1061 22AWG TS80℃ 300V Black Single Wire	2PCS
4	Wire End	Stripped 5mm, Tin-plated	2PCS
5	L1	Lead Wire Length=400 ± 10 mm,	can be customized per customer's requirement.
6	Lmax	15.0 mm
7	Dmax	5.0 mm

Selection of KTY Sensor

When choosing the KTY81-210 Temperature Sensor, consider the environmental conditions, accuracy requirements, and temperature range of your application. The KTY Sensor  is versatile and designed to suit a wide range of temperature-sensitive applications.

Working Principle

The KTY Sensor exhibits a Positive Temperature Coefficient (PTC) of resistance, meaning its resistance increases with temperature.The KTY Sensor operates using a Resin-based mechanism, where the resistance increases with temperature. This KTY81-210 features a positive temperature coefficient (PTC), which allows for linear and predictable changes in resistance, providing reliable and accurate temperature readings.

R-T diagram of KTY81/2 series

To keep the temperature error low, it is recommended that the operating current is Isen(cont) = 1mA when the temperature is higher than 100 ° C。

To maintain low temperature error, it is recommended to operate the KTY81-210 Temperature Sensor with a continuous current of Isen(cont) = 1mA when the temperature exceeds 100°C. This ensures accurate temperature measurement and enhances the performance of the KTY81 in high-temperature applications.

The KTY81-210 Temperature Sensor is specifically designed for environments where precision is critical. For optimal results, keep the current constant at higher temperatures. This advice ensures the KTY Sensor 's reliability and accuracy across a wide range of operating conditions.

Handling and Usage

ESD Sensitivity: The KTY Sensor is sensitive to electrostatic discharge (ESD), so care should be taken during handling and installation to avoid damage.

KTY Sensor Naming Convention

The naming convention of the KTY81-210 Temperature Sensor follows a standard format:

1.Series: The KTY Sensor Series is designed for precise temperature sensing;
2.Type：81-KTY81 ,82-KTY82, 83-KTY83 ,84-KTY84;
3.Resistance R25：2-2KΩ；
4.Tolerance：1-±1% ,2-±2% ,3-±3%, 5-±5%;
5.Tolerance limit: 0-±Tolerance, 1- -Tolerance, 2-+Tolerance.

The KTY81-210 Temperature Sensor offers high precision and reliability, ensuring consistent performance in various conditions. The KTY81-210 Temperature Sensor is ideal for applications where accurate temperature measurement is critical.

Mechanical Properties

• 1.Pull Test: No cracking, deformation, or damage at the connection between the component wire and electrical wire. Apply 9.8N (1KGF) on KTY Sensor for 1 minute.
• 2.Drop Test: No visible damage. Drop the KTY Sensor  from a height of 1 meter onto a 10mm thick oak board, 5 times.
• Reliability Test

• High-Temperature Test: ΔR/R25 ≤ ±0.2%. Conducted KTY81 at 120±5°C with continuous power for 1000±24 hours, using DC 0.2mA, based on IEC60068-2-2/GB2423.2 standards.
• Low-Temperature Test: ΔR/R25 ≤ ±0.2%. Performed at -30±5°C with continuous power for 1000±24 hours, using DC 0.2mA, according to IEC60068-2-1/GB2423.1 standards.
• Humidity Test: ΔR/R25 ≤ ±0.2%. Tested KTY Sensor in an environment of 60±2°C and 90%-95% RH for 1000±24 hours, based on IEC60068-2-3/GB2423.3 standards.
• Temperature Cold and Hot Cycle Test: ΔR/R25 ≤ ±0.2%. Conducted with temperature cycling –30℃×30min→30℃×5min→100℃×30min→30℃×5min, repeating 5 times, according to IEC60068-2-14/GB2423.22 standards.
• Resistance Drift Test at Room Temperature: ΔR/R25 ≤ ±0.2%. Stored KTY Sensor at 25±2°C for 10000±48 hours, following IEC60068-2-2/GB2423.21 standards.
• These tests ensure the KTY81 delivers consistent performance across extreme conditions, demonstrating its durability and reliability. The KTY Sensor is suitable for applications requiring high accuracy in temperature sensing, and its mechanical integrity ensures long-term usage without performance degradation.

KTY81-210 User Feedback and Summary

KTY81-210 User Reviews

Users of the KTY81-210 Temperature Sensor highlight its high accuracy, durability, and ease of integration into various systems. The KTY81’s wide operating temperature range makes it especially suitable for applications that require long-term reliability under challenging conditions.

KTY81-210 Temperature Sensor Summary

In conclusion, the KTY81-210 is a highly reliable and accurate component, designed for precise temperature monitoring in a wide range of applications. Its robust design, long-term stability, and environmentally friendly features make it an excellent choice for both industrial and consumer applications.

For more detailed specifications and technical data, you can refer to the product datasheet available from DXM at the bottom of this page.

© 2024 DXM Product. All rights reserved.
Author: Ivan Huang

Updated on 9th December 2024