
MULTILAYER NTC THERMISTORS
Panasonic NTC Thermistors have the following features at the top level of the industry.
NTC thermistors is a ceramic component and it changes its resistance value as the ambient temperature changes.
The multilayered structure enables to design various resistance values.
As the temperature increases, the resistance value decreases.
The bigger the B-value, the resistance value changes become large.
Items | Testing methods | Evaluation items | Automotive | General | |
High precision | Standard | ||||
Shock resistance | Shock waveform: Semisinusoidal wave 11ms Impact acceleration: 50G Impact direction: X-X’ ,Y-Y’, Z-Z’(3 times for each direction) |
Change rate of Resistance | Within ±2% | - | - |
Change rate of B-value | Within ±1% | - | - | ||
Temperature cycle | -40 (Automotive: -55) ±3°C (30±3min)
The operation prescribed above is one cycle, and repeat it for 100 times |
Change rate of Resistance | Within ±2% | Within ±2% | Within ±3% |
Change rate of B-value | Within ±1% | Within ±1% | Within ±2% | ||
Moisture resistance | Testing temperature: 85±2°C Relative humidity: 85±5% Testing time: 1000+48/0 hours (Automotive: 2000+48/0 hours) |
Change rate of Resistance | Within ±2% | Within ±3% | Within ±3% |
Change rate of B-value | Within ±1% | Within ±1% | Within ±2% | ||
Damp heat load | Testing temperature: 85±2°C Relative humidity: 85±5% Power applying: 10mW Testing time: 1000+48/0 hours (Automotive: 2000+48/0 hours) |
Change rate of Resistance | Within ±2% | Within ±2% | Within ±3% |
Change rate of B-value | Within ±1% | Within ±1% | Within ±2% | ||
Low temperature storage | Testing temperature: -40±3°C Testing time: 1000+48/0 hours (Automotive: 2000+48/0 hours) |
Change rate of Resistance | Within ±2% | Within ±2% | Within ±3% |
Change rate of B-value | Within ±1% | Within ±1% | Within ±2% | ||
High temperature storage #1 | Testing temperature: 85±3°C Testing time: 1000+48/0 hours |
Change rate of Resistance | - | Within ±2% | - |
Change rate of B-value | - | Within ±1% | - | ||
High temperature storage #2 | Testing temperature: 125±3°C (Automotive: 2000+48/0 hours) |
Change rate of Resistance | Within ±2% | Within ±2% | Within ±3% |
Change rate of B-value | Within ±1% | Within ±1% | Within ±2% | ||
High temperature storage #3 | Testing temperature: 150±3°C Testing time: 1000+48/0 hours |
Change rate of Resistance | Within ±3% | - | - |
Change rate of B-value | Within ±2% | - | - |
Consecutive light emission by photographing still images and moving images causes temperature rising.
We recommend ultracompact type to incorporate Thermistors module.
To control the heat of high-speed CPU
It detects the temperature change and corrects the oscillating frequency, which are highly accurate.
Compact and high-accuracy type
We provide you automotive grade components that have high heat resistance (150°C), high accuracy and high reliability.
Thermistors enable automotive devices to miniaturize, lighten, detect temperature in high accuracy and reduce the cost.