High-Voltage Ceramic PTC Thermistor Series PPL25
For Voltage Ratings up to 1,000VDC
THINKING Electronic Industrial Co., Ltd. introduces a new series of ceramic PTC thermistors designed for high-voltage applications. The PPL25 series has been specifically developed for demanding circuits with high system voltages and is rated for operating voltages of up to 1,000VDC. It features high energy absorption capability, large thermal capacity, and optimally tuned Curie temperatures.
Samples Download DatasheetWhat is a PTC Thermistor?
A PTC (Positive Temperature Coefficient) thermistor is a component whose resistance increases with rising temperature. Depending on the application, PTC thermistors are used for inrush current limiting, overcurrent protection, or pre-charge/discharge circuits. With the new PPL25 Series, Thinking extends these characteristics to high-voltage environments, enabling safer and more compact circuit designs.
Key Features of the PPL25 Series
- Rated voltage up to 1,000 VDC, ideal for high-voltage circuits
- High energy absorption (non-operating energy at 60°C: approx. 372-992J)
- Large heat capacity (~6.2J/K) ensuring stable temperature behavior
- Optimized Curie temperature range: approx. 120°C-220°C
- Wide resistance range at 25 °C: from approx. 250Ω-2kΩ
- Reliable performance even under elevated ambient temperatures
Application Areas
The new high-voltage PTC Series is suitable for:
- EV charging stations and on-board chargers
- Battery energy storage systems and solar inverters
- High-voltage automotive electronics (ECUs, AD/ADAS units)
- Server and telecom power supply systems
- Industrial power and motor-control circuits
What Design Advantages Does the PPL25 PTC Thermistor Offer to Developers?
- Simplified circuit design: High voltage capability and large energy absorption allow designers to reduce component count, saving space and cost.
- Excellent robustness: High thermal capacity and optimized Curie point ensure stable operation under harsh thermal and electrical stress.
- Design flexibility: Wide range of resistance values enables precise control of pre-charge and discharge timing.
- Future-ready for high-voltage systems: Perfectly suited for next-generation 600V+ systems used in EVs, renewable energy, and industrial applications.
Your Contact Person
Would you like to use High-Voltage Ceramic PTC Thermistor from THINKING in your application? Contact Matteo Nervo.
