A53k Umi

The phrase "A53K UMI" refers to a high-precision Thermal Fuse Cement Resistor manufactured by Uchihashi Estec Co., Ltd. (UMI), a Japanese specialist in thermal protection Lazada. This safety-critical component integrates a power resistor with a thermal cut-off (TCO) designed to permanently break a circuit if temperatures reach a specific threshold, typically 130°C EbayAmazon.

Product Specifications & Applications

* Key Specs: Features a 5W power rating and 10Ω to 22Ω resistance range with ±5% tolerance LazadaSurplustrading. The ceramic housing ensures flame resistance and effective heat dissipation.

* Safety Function: The internal thermal fuse melts at 130°C to prevent electrical fires caused by overheating or current surges Lazada.

* Common Uses: Found in switching power supplies (SMPS), rice cookers, air conditioners, audio amplifiers, and motor control circuits where thermal runaway protection is mandatory LazadaAmazon.

Market Trends & Insights

* Supply Landscape: The market is primarily served by specialized electronic component distributors and B2B manufacturers based in China (Shenzhen, Huizhou, Changzhou) Yoycart.

* Pricing & Availability: Individual units are priced between $0.50 and $2.00, depending on the vendor and specific resistance value AlibabaAlibaba. In B2B wholesale, prices can drop significantly to $0.02–$0.90 for high-volume orders Alibaba.

* Trend Outlook: Demand for these hybrid resistors is driven by increasing global safety standards for home appliances and industrial equipment. Suppliers like Huizhou Huakaiwei and Changzhou Southern are prominent manufacturers offering IATF 16949 and ISO 9001 certified components AlibabaAlibaba.

Detailed sourcing lists for products and suppliers are available in the files below.