VISHAY - Thick Film Surface Mount Chip Resistors, Wraparound, Extremely Low Value RCWE
【產品特性】‧ Extremely low resistance values (0.01 Ω to 0.976 Ω)
‧ Sulfur resistant (per ASTM B809-95 humid vapor test)
‧ Enhanced power rating due to long side terminal construction (0612, 1020 types)
‧ Suitable for current sensing and shunts
‧ Metal glaze on high quality ceramic
‧ Protective overglaze
‧ Lead (Pb)-free solder contacts on Ni barrier layer
‧ AEC-Q200 qualified
【文字介紹】Vishay Intertechnology, Inc. announced that it has extended its RCWE series of thick film surface-mount wraparound chip resistors with new devices in the 0612 and 1020 case sizes. Featuring long side terminations, the Vishay Dale RCWE0612 and RCWE1020 provide 4 times the power dissipation of standard devices in equivalent 1206 and 2010 footprints, saving space and reducing component counts in telecommunications, computer, industrial, and consumer applications.
The long side terminations of the RCWE0612 and RCWE1020 provide a shorter path for heat dissipation to the PCB, allowing them to provide enhanced power ratings to 1 W and 2 W, respectively. In addition, their construction reduces the coefficient of thermal expansion (CTE) mismatch with the PCB, which increases reliability by reducing the possibility of solder joint cracks resulting from thermal cycles.
The AEC-Q200-qualified devices offer extremely low resistance values from 0.01 Ω to 0.976 Ω, tolerance down to ± 1 %, and TCR of ± 100 ppm/°C, ± 200 ppm/°C, and ± 300 ppm/°C. They are optimized as current sensing resistors and shunts in DC/DC converters, voltage regulation modules, and inverters in cell phones, computers, disc driver motor controls, air conditioners, and heat pumps.