PTC Thermistors Heater Chip Disc 220V 270C Diameter ∅20mm 

PTC Thermistors ideal as Heating Elements, has the advantage of self-regulation constant heating, no glowing parts, no overheating, energy efficient, compact design, long service life. Heating devices based on PTC thermistors can generally dispense with control and regulating components as well as over-temperature protection, maximum surface temperature is limited by the R/T curve.

AMWEI PTC Heater Disk Φ20mm 220V 270C Appearance Dimension

PTC Heater Disk

PTC Heater Disk

  • Diameter D : 20±0.5mm .
  • Thickness T: 2.0±0.2mm
  • Flatness Curvature <0.1mm
  • Electrode: Silver  Metallization

AMWEI PTC Heater Disk ∅20mm 220V 270C Electrical Specifications

  • Resistance @25C  R25 : 2k-10k Ω
  • Rated voltage (RMS) : 220 V
  • Maximum operating voltage Vmax: 265 V
  • PTC Thermistor Surface Temperature: 270C±10C
  • Operating ambient temperature range (V=0): -40~+200C
  • Operating ambient temperature range (V=Vmax) :  -40~100C

AMWEI PTC Heater Disk ∅20mm 220V 270C Application

Applied for 220V/120V heating, can be used in tool equipment vehicles cabin battery motor heating, HVAC medical devices, electronics enclosures, and industrial drying etc.

AMWEI PTC Heater Disk ∅20mm 220V 270C Reliability Data

Test Item Standard Test conditions |ΔR25/R25|
Electrical endurance,
cycling		 IEC 60738-1 Room temperature, Vmax
Number of cycles: 10000		 <25%
Electrical endurance,
constant		 IEC 60738-1 storage at Voltage: 220V
Ambient temperature: +100C
Test duration: 1000 h		 <25%
Damp heat IEC 60738-1 Temperature of air: 40 °C
Relative humidity of air: 93%
Duration: 56 days
Test according to IEC 60068-2-78		 <25%

AMWEI Ordering Code: PHD20X2MM220V270C

PTC Heaters Products

PTC Heater Chips Round Ring Rectangular Honeycomb
Wire Soldered Silicon Coated Insulated PTC Heaters
Metal Housing Conductive Heater
Cartridge Heaters Threaded Al Metal
Flow through Liquid Water Heater
Build-in Liquid Water Heater
PTC Air Heater
Convection Anti-Freeze Anti-Damp
PTC Diesel Fuel Heater

Technical Information

PTC Thermistors Glossary and Definition, 3 PTC Thermistors Characteristics, Resistance vs. Temperature RT Characteristic, Voltage vs. Current VI characteristic,  Current vs Time Characteristic.
PTC Thermistors Application Cautions for Soldering,  Mounting, Cleaning.
PTC Thermistors Manufacturing and Quality Control
The Advantage of Using PTC Thermistors as Heating Elements and Application Precaution
Dimensioning PTC Thermistors
Consideration Factors in Designing PTC thermistors as Heater
Selection Criteria for PTC Heating Thermistors