Application Background

    With the miniaturization of smart medical devices, portable systems such as forehead thermometers, insulin pumps, and ECG monitors increasingly require accurate temperature sensing. Temperature sensors play a critical role in ensuring operational safety and providing environmental context for physiological data collection.

Product Introduction

MF52 is a bead-type glass-encapsulated NTC thermistor characterized by its miniature size, high sensitivity, fast response, and long-term stability. Its resistance decreases as temperature increases, making it ideal for temperature sensing, control, and compensation in space-constrained environments.

In SPD design, the Metal Oxide Varistor (MOV) serves as the main voltage-clamping component. Proper selection and application of the MOV are crucial to ensure system safety and stability.

Given the significant variations in power grid quality, lightning frequency and strength, and the surge withstand capability of end devices across regions, surge protection designs must be adapted to local conditions rather than using a one-size-fits-all approach.

1. Introduction
    In motor control systems, brushed DC motors are widely adopted in compact devices, household tools, and automotive electronics due to their simple structure, flexible speed control, and cost advantages. These motors operate based on mechanical contact between brushes and commutators, enabling continuous rotation through periodic current switching.
    Despite advancements in brushless motor technology, brushed motors continue to play a crucial role in cost-sensitive and response-critical applications.