Westra is unlocking a new generation of high-temperature polymer capacitors with its breakthrough conductive polymer technology. By overcoming the fundamental thermal limitations of existing materials, Westra enables capacitors to operate reliably in environments that were previously inaccessible for polymer-based devices.
Polymer capacitors are essential components in a wide range of electronic systems. They are used for energy storage, filtering, voltage smoothing, and decoupling in power supplies and circuits across many industries. Their small size, low equivalent series resistance (ESR), and excellent frequency response make them particularly attractive for consumer electronics, telecommunications, power electronics, industrial systems, and increasingly in electric vehicles (EVs) and renewable energy infrastructure. However, their adoption in these growing markets has been limited by poor thermal stability.
Today, most polymer capacitors rely on PEDOT:PSS as the conductive material. While effective at room temperature, these devices suffer from significant performance degradation when exposed to elevated temperatures. Above 125°C, capacitance of standard capacitors drops rapidly, and device lifetimes shorten dramatically. This limitation has confined polymer capacitors to relatively low-temperature applications, preventing their use in sectors like automotive, aerospace, power electronics, and renewable energy, all of which increasingly demand components capable of withstanding 150°C or more.
Westras conductive polymer overcomes this barrier. Thanks to its intrinsic thermal stability, capacitors made with Westras materials retain their performance at temperatures up to 225°C. This exceptional stability has been demonstrated in long-term thermal aging tests, showing minimal loss of capacitance even under continuous operation at extreme temperatures. The ability to operate safely and reliably at 150°C, 175°C, or even beyond, makes these capacitors uniquely suited for modern automotive systems, industrial power modules, and harsh-environment electronics.
Beyond expanding the operational temperature window, Westras technology directly addresses the growing need for more sustainable and longer-lasting electronic components. High-temperature stability translates to extended device lifetime, reducing failure rates, maintenance needs, and replacement cycles.