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SMDs Evolve to Suit Latest Technology Requirements
Trends in Chip Resistors
New chip resistor products optimal for individual applications are being developed, including small products for smartphones, high-reliability products for in-car use, and high-performance products for industrial equipment.
Similar to MLCCs, 0402-size chip resistors are becoming widely used. Moreover, some chip resistors have been extremely miniaturized to the 0201-size in order to adapt to next-generation mounting processes. These will be mass produced and supplied in consideration of their market evaluation. Thinned products with thicknesses of 0.13mm and 0.14mm have also been developed.
![Photo 2: 0.13mm-thick chip resistors designed for incorporation into substrates](../img/industryreport_smd2.jpg)
Photo 2: 0.13mm-thick chip resistors designed for incorporation into substrates
In power supply circuits, a long-side electrode structure increasingly tends to be used as high-power chip resistors. It is suitable for various automotive ECUs that are subject to large temperature variation and large vibration or shock. There are a broad variety of low-resistance chip resistor products that are used for current detection, current limitation, motor rotation control, among others. In particular, product lines of metal plate chip resistors have been markedly expanded.
![Photo 3: Extremely miniaturized 0201-size MLCCs](../img/industryreport_smd3.jpg)
Photo 3: Extremely miniaturized 0201-size MLCCs
Surge-resistant chip resistors for circuits, which need to be protected against lightning surge, are also available. Also, sulfurization-resistant chip resistors are used in circuits near the power supply to prevent resistance braking due to sulfurization.