China suppliers offer SMD fuses for consumer and automotive electronics, medical equipment and power supplies.
Resettable and one-time SMD fuses from China makers come in 0603, 0805, 1206, 1812 and 2920 versions, with the first two sizes leading output. These have a glass-encapsulated ceramic or epoxy resin body, and nickel- or tin-plated copper, tin or silver terminals.
Based on rated voltage and current, the selection includes 6 to 60V and 0.5 to 25A units. The key applications are smartphones, digital cameras, computers and peripherals, displays and power supplies.
Most companies offer products compliant with various standards such as CE, GS, RoHS, TÜV and UL. XC’s 1206 models, which have silver filament and terminations, and a glass-covered ceramic body, carry cUL and UL approval.
Makers source key materials copper, tin, silver, nickel, ceramic, epoxy resin and glass locally. Some turn to overseas providers, especially for epoxy resin and ceramic.
Stable input costs are expected to keep prices at current levels for the rest of the year. A few makers have reduced their quotes to cope with intense local competition. XC adjusted its rates by 5 percent.
Here is a selection of SMD fuses from China:
UL-listed SMD fuse suits LED lighting
The S6125 series of SMD fuses from Nanjing Sart Science and Technology Development Co. Ltd includes fast-acting, and medium- and high-inrush units. The first kind, model S6125-F, operates at 125VAC and has a 1 to 20A current rating. The medium-rush S6125-M2 has 0.5 to 5A. The 125VAC S6125-H and the 250VAC S6125-H2 support 0.5 to 5A and 1 to 5A.
The halogen-free products measure 6.1x2.5x2.5mm. They bear RoHS and UL approval. The main applications are LED lighting, LED and LCD panels, miniature power supplies and computer peripherals.
SMD fuse in 1206 form
Shenzhen Deer Electron Co. Ltd's model ST1140 one-time SMD fuse has a maximum blow time of more than four hours at 100 percent testing current, and ≤5 seconds at 250 and 350 percent.
The 1206 halogen-free unit has a glass-covered ceramic body, and silver, nickel or tin terminals. It is RoHS-compliant.
The minimum order quantity is 2,000 units, which are delivered in 7 days.
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SMD fuse has 50A breaking capacity at 32VDC
The 06H series SMD fuse from Shenzhen Lanson Electronic Co. Ltd has voltage and current ratings of 32V and 1 to 5A. Its breaking capacity is 50A in 32VDC.
The 0603-size model has a glass-covered ceramic body, and silver, nickel or tin terminals. It operates in -40 to 125 C and can withstand 260 C reflow soldering temperature for 10 seconds.
The device undergoes MIL-STD-202G testing using 107G method for thermal shock and MIL-STD-202G and 208H for solderability. It complies with cUL, cURus, IEC 60127-2, 60068-2 and UL guidelines.
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SMD fuse features silver terminals
The model 12F/12T SMD fuse from XC Electronics (Shenzhen) Corp. Ltd has blow time of exceeding four hours at 100 percent testing current, and ≤5 seconds at 250 and 350 percent.
The one-time model in 1206 form has a silver filament, glass-encapsulated ceramic body, and silver terminals with nickel or tin overplating. It meets cUL and UL.
The maker accepts a minimum order of 3,000 units. Delivery is within 10 days.
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