Alps Alpine launches detector switch for 48V power supplies
Alps Alpine has announced the launch of the SPVQK Series, a new automotive detector switch designed to support the growing adoption of 48V electrical architectures in next-generation EVs. The new product addresses two key challenges associated with higher-voltage automotive systems ensuring reliable switching performance under demanding electrical conditions and simplifying circuit design.
With a maximum rated voltage of 52V DC, the SPVQK Series can be used directly in 48V electrical systems without requiring voltage conversion circuitry. This simplifies circuit design while providing greater design flexibility.
Compared with SPVQ8 Series, which supports a maximum inrush current of 0.1 A peak (C-load), the SPVQK Series withstands up to 3 A peak (C-load), providing significantly greater robustness during switching. Its newly developed contact structure minimises contact wear and degradation, ensuring stable electrical performance and long-term reliability. In addition, external current-limiting components, such as chip resistors previously required for circuit protection, are no longer necessary. This simplifies circuit design while reducing the overall component count.
The SPVQK Series delivers the high reliability required for automotive applications, withstanding overcurrent of up to 18 A for 5 minutes (typical value) and providing an operational life of 300,000 cycles. Its dust- and water-resistant construction, compliant with IP6K7, ensures stable performance even in harsh operating environments.
The SPVQK Series shares the same form factor as the previous SPVQ8 Series, allowing it to be adopted with minimal design changes. This enables a smooth transition from existing products.
Designed for a broad range of detection applications, the SPVQK Series is ideal for automotive systems, including door latches, seat belt buckles, electric parking brakes (EPBs), and column shifters. It is also well suited for consumer electronics applications, such as smart locks and home appliances, including toilet seat lid detection applications.
