THERMISTOR SENSOR
Solution
Thermistor of operating
temperature range-40℃to175℃
Challenge
Want a heat-resistant product compatible with SiC power semiconductors
- Looking for a surface mount thermistor that is heat resistant to 175℃ to detect temperature abnormalities in the elements of the power module.
- Want to ensure temperature measurement accuracy even at high temperatures.
- Looking for a thermistor that is suitable for vacuum reflow and formic acid reflow mounting.
Solution Overview
The upper limit of the operating temperature of conventional chip thermistors was up to 150℃, but to detect overheating abnormalities in power semiconductors, the thermistor needs to be able to measure up to 175℃. As a solution, we selected a thermistor material composition with excellent long-term resistance stability even in a high temperature environment. We are proud to offer our TK series to which our unique 4-sided glass coat structure is applied.
■ Features
- Thermistor material composition with excellent long-term resistance stability even in a high temperature environment
- Adopted a terminal structure that is suitable for harsh conditions such as vacuum reflow
- AEC-Q200 compliant
■ Applications
Power module, inverter, PCU
Part No. | TK11-4H104F |
---|---|
Resistance R25℃ | 100kΩ |
Resistance Tolerance | ±1% |
B Value B25/50 | 4380K |
B Value Tolerance | ±1%(±0.5%) |
Operating Temperature | -40℃~+175℃ |
Dimensions | L:1.6mm W:0.8mm t=0.7mmMax |
*Please contact us for other characteristics.
Effect
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Before
Since the upper limit of the operating temperature of the conventional chip thermistor was 150℃, it was not able to detect the temperature abnormality of the power element.
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After
By using a 175℃-resistant thermistor, it is possible to detect temperature abnormalities and improve the temperature measurement accuracy, so the thermistor can be used for power module applications.
ADVANTAGE
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ADVANTAGE01
Our thermistor (TK series) can measure temperatures up to 175℃, it has excellent heat resistance, and is ideal for monitoring the temperature of power modules.
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ADVANTAGE02
The temperature accuracy is about ±3℃ when the B value tolerance is ±1% at 175℃ ; and about ±1.5℃ for the high accuracy ±0.5% option, which is superior to other standard products in temperature accuracy at high temperatures.
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ADVANTAGE03
Since our chip thermistor is 4-sided glass-coated, it has high environmental reflow resistance.
*Please contact us for test implementation.
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This solution utilizes
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