ROHM develops a new series of long-side electrode low resistance series

AVX tantalum capacitor low resistance TPSD107K016R0100 original 2011+

A well-known Japanese semiconductor manufacturer, Rom (headquartered in Kyoto, Japan), has expanded its lineup of high-power chip resistors /long-side electrodes and low-resistance series for high-current applications such as automotive, power supply, and motors. The 3216 size (3.2mm long x 1.6mm wide x 0.58mm high) chip resistor - "LTR18 low resistance series", achieving a rated power of 1W, 4 times higher than the previous products.

This product has been mass-produced on a monthly basis of 1 million units since April 2012. With the expansion of customer demand, production has increased from October 2012 to 4 million per month. The production base is ROHM Electronics Philippines Inc. (Philippines).

As a resistor for in-vehicle equipment, power supply, and motor circuit current sensing, it is generally required to have low resistance, low temperature coefficient of resistance (TCR), and high rated power. In recent years, with the development of various electronic devices with high functionality, the amount of current in the circuit has increased, and the demand for small and high-power products has increased. Among them, there is a strong demand for products with a size of 3216 and a rated power of 1W. In this context, Roma explored the decision to further improve the lineup of related products.

This time, ROHM's original heat dissipation design, as a 3216 size product, has a rated power of 1W, which is four times higher than the rated power of the previous products. At the same time, through the improvement of the structure and material of the resistor body, a lower resistance value is achieved. Achieve the industry's top temperature coefficient of resistance. In addition, ROHM uses a long-edge electrode structure to reduce the mechanical stress on the joint and greatly improve the joint reliability against temperature changes.

With the increase in power and temperature characteristics, it is also easy to use in circuits that require temperature compensation in the automotive industry, and therefore, the design burden can be reduced.

ROHM has been leading the world in the broad technical fields required for resistors such as miniaturization, diversification, ultra-high precision, and ultra-low resistance. In the future, we will continue to advance and improve the lineup of high-quality resistor products that meet the various needs of our customers.

1) Achieving 4 times higher power rating than previous products Through the original heat dissipation design, as a 3216 size product, the rated power is 1W, which is 4 times higher than the previous products.

2) Excellent resistance temperature coefficient Generally, the lower the resistance value, the larger the temperature coefficient of resistance. ROHM achieves the industry's top temperature coefficient of resistance by using the original resistor body structure and material.

3) The long-edge electrode structure is used to improve the reliability, and the electrodes are arranged in the longitudinal direction to reduce the mechanical stress at the joint. The joint reliability for temperature changes is greatly improved!