Slide 1: PTC Heaters: Self-Regulating Heating Elements
PTC Heaters Self-Regulating Heating Elements TDK Electronics AG Piezo and Protection Devices Business Group Product Marketing PTC Thermistors Munich, Germany January 2020
Slide 2: Production plants
Production plants Šumperk, Czech Republic Front-end, back-end ● Pressing ● Sintering ● Metalization Deutschlandsberg, Austria Powder ● Powder production Zhuhai, China Back-end Kutina, Croatia ● Soldering Final measurement ● Assembly ● Final testing ● Final testing ● Package ● Package © TDK Electroni
Slide 3: PTC product spectrum
PTC product spectrum Heating Overload Motor start PTC ICL Sensors elements Parameters Parameters Parameters Parameters Parameters U: 12…500 V U: 180…265 V U: 12…800 V U: 400…1000 V Tsens: 60…180 °C R: 0.3…1800 Ω R: 4.7…5000 Ω R: 0.75…960 Ω R: 22…7500 Ω Size: Leaded, SMD, Ø: 4…22 mm Ø: 16…20 mm th: 1
Slide 4: Description of a PTC and key parameters: Typical R/T curve
Description of a PTC and key parameters: Typical R/T curve RPTC What is a PTC? A PTC (Positive Temperature Coefficient) is a resistor whose resistance varies with temperature. With increasing temperature, the resistance of the PTC will increase. RN Resistance value at 25 °C Rmin Minimum resistance o
Slide 5: PTC heaters technology advantages
PTC heaters technology advantages • Self-regulating • No overtemperature protection necessary • No risk of fire compared to fixed resistors • No changes of the product characteristics during lifetime of the application • Quick heating © TDK Electronics AG 2020 PTC Heaters ● Self-Regulating Heating
Slide 6: TDK company advantages PTC heaters
TDK company advantages PTC heaters • 50 years experience in PTC technology • All common voltages available (12 V to 800 V) • Customer specific geometries available • Wide temperature range (40 °C to 280 °C) • 100% resistance measuring • 100% automatic pulse testing • 100% AOI of HV PTC heaters © TDK
Slide 7: PTC heater portfolio
PTC heater portfolio LV PTC heater HV PTC heater Shape Rated voltage 12 V, 24 V, 48 V 230 V, 350 V, 800V Thickness 1.0 … 1.4 mm 2.0 … 3.0 mm Reference 0 °C ... 220 °C 50 °C ... 270 °C temperature Surface 40 °C ... 230 °C 100 °C ... 280 °C temperature Min. resistance 0.75 Ω ... 20 Ω 85 Ω ... 960 Ω Me
Slide 8: Comparison of PTC electrodes
Comparison of PTC electrodes © TDK Electronics AG 2020 PTC Heaters ● Self-Regulating Heating Elements PPD PTC PM 01/2020 8
Slide 9: Automotive applications for PTC heaters
Automotive applications for PTC heaters Diesel filter heating Blowby heating Battery heating Cabin heating SCR system heating © TDK Electronics AG 2020 PTC Heaters ● Self-Regulating Heating Elements PPD PTC PM 01/2020 9
Slide 10: Household and industrial applications for PTC heaters
Household and industrial applications for PTC heaters Insecticide and Doorlock Wax actuators in thermostats perfume vaporizer © TDK Electronics AG 2020 PTC Heaters ● Self-Regulating Heating Elements PPD PTC PM 01/2020 10
Slide 11: Checklist of design inputs
Checklist of design inputs Mechanical parameters Electrical parameters Others Dimensions (LxWxT) Operating voltage (min, max) Packaging Contact method Preferred Tref Marking Contact material Preferred Tsurf Labeling (part and packing) Preferred electrode Preferred R25 or Rmin Breakdown voltage © TDK
Slide 12: www.tdk-electronics.tdk.com
www.tdk-electronics.tdk.com