Slide 1: Overload PTC Thermistors
Overload PTC Thermistors Resettable Fuses TDK Electronics AG Piezo & Protection Devices Business Group Product Marketing PTC Thermistors Munich, Germany July 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 Electron
Slide 3: PTC product range
PTC product range Heating Overload Motor start PTC ICL Sensors elements Parameters Parameters Parameters Parameters Parameters U: 12…1000 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…3
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: Overload PTCs: Function & technology advantages
Overload PTCs: Function & technology advantages ● Protects circuit in case of overcurrent or over temperature ● Self-regulating behavior ● No risk of fire compared to fixed resistors ● No replacement needed after failure case (resettable fuse) ● SMD types available for usage on small PCBs © TDK Elec
Slide 6: Overload PTCs: Company advantages
Overload PTCs: Company advantages ● Market leader for PTC thermistor products ● More than 50 years experience in PTC technology ● Low / medium / high-voltage types available (12 V to 1000 V) ● Wide resistance range available (0.3 Ω to 1500 Ω) ● Products based on AEC-Q200 qualification available ● Cu
Slide 7: Product range overview (1)
Product range overview (1) ● Diameter min/max 4.0 … 22 mm ● Rated voltage 12 … 1000 V ● Rated current 3 … 1800 mA ● Switching current 17 … 3600 mA ● R25 0.3 … 1500 Ohm ● Approvals UL1434, IECQ, VDE, AEC Q-200 ● Case sizes 0402, 0603, 1210 ● Rated voltage 24 … 230 V ● Rated current 12 … 90 mA ● Switc
Slide 8: Product range overview (2)
Product range overview (2) ● Case sizes 3225, 4032 ● Rated voltage 24 … 63 V ● Rated current 40 … 310 mA ● Switching current 85 … 640 mA ● R25 3.1 … 55 Ohm ● Approvals AEC Q-200 © TDK Electronics AG 2020 Overload PTC Thermistors Resettable Fuses PPD BG PTC PM 07/20 8
Slide 9: Applications (1)
Applications (1) Battery management systems Charging stations 12V / 24V DC motors for seat for green energy storage for e-mobility adjustment or window control © TDK Electronics AG 2020 Overload PTC Thermistors Resettable Fuses PPD BG PTC PM 07/20 9
Slide 10: Applications (2)
Applications (2) Circuit breaker Power supply for LED lighting Switch-mode power supply © TDK Electronics AG 2020 Overload PTC Thermistors Resettable Fuses PPD BG PTC PM 07/20 10
Slide 11: Checklist of design inputs
Checklist of design inputs Mechanical parameters Electrical parameters Others Dimensions / Case size Operating voltage Packaging Automotive or industrial Operating current applications Rated and switching current Max. operating temperature © TDK Electronics AG 2020 Overload PTC Thermistors Reset
Slide 12: www.tdk-electronics.tdk.com
www.tdk-electronics.tdk.com