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Thermistors FAQ
Find FAQs
NTC Thermistors
Characteristics
[NCP Series] If a current that exceeds the allowable maximum operating current passes through this NTC Thermistor, what happens to the thermistor?
[NCP Series] When measuring the resistance of this NTC Thermistor, how much current should be passed through the thermistor?
[NCP Series] What is the thermal time constant of this NTC Thermistor ?
[NXF Series] What is the measurement temperature error at each temperature?
[NXF Series] If a current that exceeds the allowable maximum operating current passes through this NTC Thermistor, what happens to the thermistor?
[NXF Series] When measuring the resistance of this NTC Thermistor, how much current should be passed through the thermistor?
[NXR Series] What is the measurement temperature error at each temperature?
[NXR Series] If a current that exceeds the allowable maximum operating current passes through this NTC Thermistor, what happens to the thermistor?
[NXR Series] When measuring the resistance of this NTC Thermistor, how much current should be passed through the thermistor?
Quality Reliability
Does Chip NTC Thermistor have waterproof structure?
[NXF Series] Are there any precautions to take when selecting an adhesive agent to fix this NTC Thermistor to the object to be measured?
[NXF Series] Are there any precautions to take when packaging this NTC Thermistor with resin?
[NXF Series] Are there any precautions to take when soldering to the leads of this NTC Thermistor?
[NXR Series] Are there any precautions to take when selecting an adhesive agent to fix this NTC Thermistor to the object to be measured?
[NXR Series] Are there any precautions to take when packaging this NTC Thermistor with resin?
[NXR Series] Are there any precautions to take when soldering to the leads of this NTC Thermistor?
Mounting
[NCP Series] Can the NCP Series be flow-soldered?
[NCP Series] Can this Series products be reflow-soldered twice or more?
Precautions on Using
What is the key for measuring accurate resistance value of NTC thermistors?
Configurations Material
[NCP Series] What electrode construction does the NCP Series have?
[NCP Series] Is this Series applicable to the bulk feeding system?
[NXF Series] Can the length of the leads be changed?
[NXR Series] Can the length of the leads be changed?
[NXR Series] Is this Series available in taping packaging?
PTC Thermistors (POSISTOR®)
Characteristics
[PTFL/PTFM Series] What is the resistance-temperature characteristic?
[PTFL/PTFM Series] What is the characteristic at temperatures other than the sensing temperature?
[PTGL Series] How to select "POSISTOR®" for Over Current Protection?
[PRG Series] How to select "POSISTOR®" for Over Current Protection?
[PRG Series] Could this products raise Max. voltage ?
[PRG Series] Can operating temperature range be widened?
[PRG Series] What are the maximum rating wattage values?
[PRG Series] Why dose "Chip type Ceramic PTC Resettable Fuse(Posistor)" be tripped under rating hold current?
[PRG Series] Why dose "Chip type Ceramic PTC Resettable Fuse(Posistor)" be not tripped over rating trip current?
[PRG Series] What are the shrinked current values after this series tripped?
[PRG Series] Do you have more maximum voltage resistance, or more hold current series?
[PRF Series] What are the variation of resistance-temperature characteristics?
[PRF Series] Can operating temperature range be widened?
[PRF Series] What dose mean rating maximum voltage?
[PRF Series] What are the maximum rating wattage values?
Quality Reliability
[PTGL Series] Though the operating temperature range is specified between -10°C and +60°C, can this range be widened?
[PRG Series] What kind of failure mode of "Chip type Ceramic PTC Resettable Fuse(Posistor)".
[PRG Series] When usage of over rating (voltage, operating temperature range), what kind of failure mode will occur?
[PRG Series] What conditions should I store this series?
[PRG Series] Is a pretreatment required when using "Chip type Ceramic PTC Ressetable Fuse (Posistor)"?
[PRG Series] How is certification of safty standards.
[PRG Series] How is certification of CCC and CQC safety standards of China?
[PRF Series] What kind of failure mode of "PTC thermistor for overheat sensing"?
[PRF Series] When usage of over rating (voltage, current), what kind of failure mode will occur?
[PRF Series] What conditions should I store this series?
[PRF Series] Is a pretreatment required when using "PTC thermistor for overheat sensing"?
[PRF Series] How is certification of safty standards.
[PRF Series] How is certification of CCC and CQC safety standards of China?
Mounting
[PTFL/PTFM Series] What is the thermal resistance of "POSISTOR®" with the object to be measured?
[PTFL/PTFM Series] Are there any precautions to take when selecting an adhesive agent to fix "POSISTOR®" to the object to be measured?
[PTFL/PTFM Series] Are there any precautions to take when packaging "POSISTOR®" with resin?
[PTFL/PTGL Series] Are there any precautions to take when soldering to the leads of this PTC Thermistor?
[PTFM series] What torque value do you recommend when you moust ths product with screw?
[PTFM series] Are there any precautions to take when soldering to the leads of this PTC Thermistor?
[PRG Series] Can this series be flow-soldered?
[PRG Series] Is a baking process required when soldering of "Chip type Ceramic PTC Ressetable Fuse (Posistor)"?
[PRF Series] Is a baking process required when soldering of "PTC thermistor for overheat sensing"?
[PRG Series] What are reflow soldering conditions of this series?
[PRG Series] Can this series be manual solderd? What is manual soldering condition?
[PRG Series] What is the recommended land dimensions?
[PRG Series] Do you take any precautions for flux cleaning?
[PRF Series] Can this series be flow-soldered?
[PRF Series] What is a MSL level of "PTC thermistor for overheat sensing"?
[PRF Series] What are reflow soldering conditions of this series?
[PRF Series] Can this series be manual solderd? What is manual soldering condition?
[PRF Series] What is the recommended land dimensions?
[PRF Series] Do you take any precautions for flux cleaning?
Environment
[PRG Series] Please let me know the weight of product?
[PRG Series] Please let me know the weight of a packing material.
[PRG Series] Are there any "Chip type Ceramic PTC Ressetable Fuse (Posistor)" that comply with the European RoHS Directive?
[PRF Series] Please let me know the weight of product?
[PRF Series] Please let me know the weight of a packing material.
[PRF Series] Are there any "PTC thermistor for overheat sensing" that comply with the European RoHS Directive?
Precautions on Using
[PRG Series] Can this series be coated by resin, or potting?
[PRG Series] Can this series use on AC circuit?
[PRG Series] Can this series use over rating maximum voltage with series connect of products?
[PRG Series] Can this series use over rating hold current with parallel connect of products?
[PRG Series] Can "Chip type Ceramic PTC Ressetable Fuse (Posistor)" use as surge protector?
[PRF Series] Can this series be coated by resin, or potting?
[PRF Series] Can this series use on AC circuit?
Configurations Material
[PTFL/PTFM Series] Are these Series available in taping packaging?
[PTGL Series] Is the Series available in taping packaging?
[PRG Series] What is the mechanism of "Chip type Ceramic PTC Ressetable Fuse (Posistor)" ?
[PRG Series] Is there a polar character for "Chip type Ceramic PTC Ressetable Fuse (Posistor)"?
[PRG Series] Is there a marking on product series?
[PRG Series] What is series of "Lead type Ceramic PTC Ressetable Fuse (Posistor)"?
[PRF Series] What is the mechanism of "PTC thermistor for overheat sensing" ?
[PRF Series] Is there a polar character for "PTC thermistor for overheat sensing"?
[PRF Series] Is there a marking on product series?
[PRF Series] What is series of lead type PTC thermsitor for overheat sensing?
Operation Circuit
[PTGL Series] Doesn't "POSISTOR®" malfunction due to rush current or surge noise caused when supplying power?
[PTGL Series] When current has a special waveform (pulse, etc.), how much are the trip and hold currents?
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