PTC Thermistors

PTC thermistor or PTC chip is the heart of all our PTC range heaters, below are some of our standard PTC thermistors available for direct purchase

Rectangle Type | Disc Type

Features

  • No Thermostat RePTC Thermistor Characteristicsquired
  • Virtually unlimited life
  • No moving parts to wear
  • Very low cost
  • No electrical noise
  • The higher the temperature, the more electricity efficient
  • Does not burn when in contact with paper, matches or clothes

PTC HEATING ELEMENTS (RECTANGLE TYPE)

All models listed in the specifications table below can be portioned into smaller sizes (MIN= 2.5x2.5mm). The resistance of segmented PTC thermistors or PTC chips will increase in proportion with its size.

For example:
1. A PTC chip of 1000Ω, segmented into 1/2, its resistance will become 2000Ω per segment (1000Ω x 2segments = 2000Ω)
2. A PTC chip of 20Ω, segmented into 1/4, its resistance will become 80Ω per segment (20Ω x 4segments = 80Ω)

Typical Applications
  • Heater Fan
  • Heating Plates
  • Drying Machines
  • Hair Dryer
  • Hot melt glue gun
  • Foot warmer
  • Diesel / fuel heater
  • Iron

Rectangular PTC Thermistor Specifications

ID Resistance
(Ω@25)
Surface Temperature
()
Voltage
(V)
Dimension(mm) Conductive Layer
W L T Al+Sn Sn
KLC0121401500210-198
1Ω - 3Ω 198 6V - 16V 15 21.4 2.1  
  KLC0121401500150-245 245 15 21.4 1.5  
  KLC0125000780110-160 3Ω - 10Ω 160 8V - 18V 7.8 25 1.1  
KLC0121401500210-245 245 15 21.4 2.1  
KLC0121401500210-245 10Ω - 20Ω 245 12V - 24V 15 21.4 2.1  
KLC0221401500210-245 20Ω - 40Ω 245 24V - 36V 15 21.4 2.1  
KLC0321401500210-245 40Ω - 100Ω 245 36V - 80V 15 21.4 2.1  
  KLC1021401500210-90 300Ω - 600Ω 90 90V - 140V 15 21.4 2.1  
  KLC1024001500210-150 150 15 24 2.1  
  KLC1024001500210-200 200 15 24 2.1  
KLC1021401500245-200 200 15 21.4 2.45  
KLC1021401500245-230 230 15 21.4 2.45  
KLC1021401500210-245 245 15 21.4 2.1  
KLC1021401500245-245 245 15 21.4 2.45  
  KLC2021401500245-110 1000Ω - 3000Ω 110 180V - 280V 15 21.4 2.45  
  KLC2021401500245-130 130 15 21.4 2.45  
  KLC2021401500245-150 150 15 21.4 2.45  
  KLC2023001500210-200 200 15 23 2.1  
KLC2021401500245-220 220 15 21.4 2.45  
  KLC2021401500210-230 230 15 21.4 2.1  
KLC2021401500245-230 230 15 21.4 2.45  
KLC2021401500210-240 240 15 21.4 2.1  
KLC2021401500245-240 240 15 21.4 2.45  
KLC2021401500210-250 250 15 21.4 2.1  
KLC2021401500245-250 250 15 21.4 2.45  
KLC2021401500210-260 260 15 21.4 2.1  
KLC3021401500245-220 3500Ω - 10000Ω 220 280V - 420V 15 21.4 2.45  
  KLC1021401500210-245 500Ω - 1000Ω 245 100V - 240V 15 21.4 2.1  
KLC1021401500245-245 245 15 21.4 2.45
  • Models with “◎” symbol in the Specification table are our standard in-stock models, the delivery time for these models is shorter. For non-standard models please contact us for current stock amount before placing orders.
  • Voltage, dimension, resistance, temperature, or Curie temperature can also be customized for large quantities. Require 40~60 working days, MOQ of 30K.
  • For lower temperature applications (10℃~90℃), please consider our LCHT range products with the characteristics of no inrush current, stable power and follow the Ohms Law. Ratings: 3V AC/DC ~ 600V AC/DC (CUL, CE), T℃=10℃~250℃
  • Please note, our PTC elements contain Pb under the permission of RoHS exemption 7(c)-I: Electrical and electronic components containing lead in a glass or ceramic other than dielectric ceramic in capacitors, e.g. piezoelectronic devices, or in a glass or ceramic matrix compound.

PTC HEATING ELEMENTS (DISK TYPE)

Round PTCR Round PTCR cut

For low volume round PTC thermistors with unique dimensions, please also consider using rectangular type PTC thermistors with slightly higher temperature for faster delivery and lower MOQ.

For example:
1. A round PTC chip of 8.5mm can be replaced with square PTC chip with 6x6mm (8.5 x 0.707=6.01mm)
2. A round PTC chip of 12.5mm can be replaced with square PTC chip with 8.5x8.5mm (12.5 x 0.707=8.84mm)

Typical Applications
  • Self control heating elements
  • Drying Machine
  • Heating Plates
  • Carburetor preheating
  • Special design for dimensions or Max. surface temperature is also available.

Round PTC Thermistor Specifications

ID Resistance
(Ω@25)
Surface Temperature
()
Voltage
(V)
Dimension(mm) Conductive Layer
Ø T Al+Sn Sn
KLC0108000120-120 6Ω - 12Ω 120 6V - 12V 8.0 1.2  
KLC0113400230-115 6Ω - 12Ω 115 12V - 24V 13.4 2.3  
KLC0108000250-95 12Ω - 24Ω 95 12V - 24V 8.0 2.5  
KLC0108000260-130 28Ω - 52Ω 130 12V - 24V 8.0 2.6  
KLC1008000260-165 28Ω - 52Ω 165 100V - 120V 8.0 2.6  
KLC2008000260-170 70Ω - 110Ω 170 200V - 240V 8.0 2.6  
KLC2008000300-190 1.5KΩ - 3KΩ 190 200V - 240V 8.0 3.0  
  • Please contact us for current stock amount before placing orders.
  • Voltage, dimension, resistance, temperature, or Curie temperature can also be customized for large quantities. Require 40~60 working days, MOQ of 30K.
  • For lower temperature applications (10℃~90℃), please consider our LCHT range products with the characteristics of no inrush current, stable power and follow the Ohms Law. Ratings: 3V AC/DC ~ 600V AC/DC (CUL, CE), T℃=10℃~250℃
  • Please note, our PTC elements contain Pb under the permission of RoHS exemption 7(c)-I: Electrical and electronic components containing lead in a glass or ceramic other than dielectric ceramic in capacitors, e.g. piezoelectronic devices, or in a glass or ceramic matrix compound.
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