• Coated Linear PTC Thermistor
Coated Linear PTC Thermistor

Coated Linear PTC Thermistor

Product Details:

Place of Origin: Dongguan,Guangdong,China
Brand Name: UCHI
Certification: UL,SGS,ROHS
Model Number: linear silicon PTC thermistor

Payment & Shipping Terms:

Minimum Order Quantity: 5000PCS
Price: Negotiable
Packaging Details: Bulk
Delivery Time: 7 working days
Payment Terms: T/T,Paypal,Western Union,Money gram
Supply Ability: 600,000,000PCS Per Month
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Detail Information

High Light:

temperature sensor thermistor


positive temperature coefficient thermistor

Product Description

Coated Linear PTC Thermistor


Quick Details


1. Silicon temperature sensors have a TK (temperature coefficinet) which is nearly constant over the complete temperature range. Temperature coefficient:α25/50≥0.7%/C.
2. Excellent long term stability, annual diversification rate≤0.01C/per year, temperature drifts during the lifetime of silicon temperature sensor are negligible.
3. Thermal Time Constant: 10 seconds max in still air. 
4. Operating temperature range:-40C--+150C.
5. Dissipation factor:2.5--5mW/C. 
6. Maximum operating current:Iopr=1.0mA. 
7. Rated power:10mW.
8. Typical resistance @25C 600 ohm, 1000 ohm, 1600 ohm, 2000 ohm.
9. For AMWEI AM-LPTC600, AM-LPTC1000, AM-LPTC2000 part can be matched with Philips silicon temperature sensors part KTY84, KTY81-1, KTY81-2.





Linear PTC Thermistor (LPTC) resistance increases with the temperature rises in linearity, displays a virtually linear positive temperature coefficient over their entire temperature range, suitable in measurement and control system, temperature compensation. As the construction material is mainly semiconductor monocrystalline silicon, also called silicon temperature sensor, silicon thermistor, sometimes referred to as silistors. As the temperature coefficient is positive, the silicon temperature sensors exhibit fail-safe operation when a system overheats. Furthermore silicon is inherently stable, so silicon temperature sensor are extremely reliable and have very long operational lifetimes. Hermetically sealed glass package, axial leaded, 2 leads, can operate in high temperature and moisture environment. Linear PTC thermistor in small dimension, tightness, convenient for automatic installation.



· Industrial auotomation control equipment.
· Home appliance temperature detection and compensation. 
· Precision circuit and crystal oscillator temperature compensation.
· Temperature compensation of silicon semiconducting devices.
· Temperature compensation of instrumentation amplifier.
· A/D converter temperature compensation. · Micro motor timing control. 
· Automobile temperature detection and control.
· Medical equipment temperature detection and control. 
· Linear PTC thermistor applications also include transmission, engine oil and coolant, heating system, overheating protection, amplifiers, power supplies, transducers, telemetry, computers, magnetic amplifiers, thermometry, meteorology, temperature regulation and over-temperature protection.



Linear Silicon PTC Thermistors Temperature Sensor Dimension (Unit: mm)

Linear PTC Thermistor Silicon temperature sensors

Linear Silicon PTC Thermistors Temperature Sensors
Resistance vs. Temperature Data







359 ohm

567 ohm

998 ohm

1135 ohm


391 ohm

624 ohm

1073 ohm

1247 ohm


424 ohm

684 ohm

1153 ohm

1367 ohm


460 ohm

747 ohm

1242 ohm

1495 ohm


498 ohm

815 ohm

1335 ohm

1630 ohm


538 ohm

886 ohm

1437 ohm

1772 ohm


581 ohm

961 ohm

1547 ohm

1922 ohm


603 ohm

1000 ohm

1600 ohm

2000 ohm


626 ohm

1040 ohm

1654 ohm

2080 ohm


672 ohm

1122 ohm

1772 ohm

2245 ohm


722 ohm

1209 ohm

1901 ohm

2417 ohm


773 ohm

1299 ohm

2033 ohm

2597 ohm


825 ohm

1392 ohm

2165 ohm

2785 ohm


882 ohm

1490 ohm

2302 ohm

2980 ohm


940 ohm

1591 ohm

2448 ohm

3182 ohm


1000 ohm

1696 ohm

2591 ohm

3392 ohm


1062 ohm

1805 ohm

2730 ohm

3607 ohm


1127 ohm

1915 ohm

2850 ohm

3817 ohm


1194 ohm

2023 ohm

2988 ohm

4008 ohm


1262 ohm

2124 ohm


4166 ohm


1334 ohm

2211 ohm


4280 ohm


1407 ohm





1482 ohm




Note: Optional for Resistance @25C (R25) tolerance 1%, 2%, 3%, 5%, or 10%.

Typical Linear Silicon PTC Thermistor Temperature Sensor Application Circuit

Temperature measuring circuit using linear silicon PTC thermistor sensor 1k ohm part

Temperature measuring circuit using linear silicon PTC thermistor sensor 1000 ohm part

Temperature compensation circuit using linear silicon PTC thermistor 2k ohm part

Temperature compensation circuit using linear silicon PTC thermistor 2000 ohm part


Linear Silicon PTC Thermistors Temperature Sensors Application Precaution

Minimum lead wire length tailored to shall be ≥8mm. 
In lead wire bending, bending point shall be more than 2mm away from glass body part. 


Competitive Advantage:


  1. Factory supply directly

  2. Completed certificates such as UL,VDE,SGS,etc and high quality available

  3.  Quick delivery

  4. Best after-sales services

  5. OEM & ODM available



Coated Linear PTC Thermistor 3


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