Vishay Intertechnology, Inc. (NYSE: VSH) has recently expanded the ohmic range of its MCW 0406 AT Precision series wide-terminal film chip resistors to include a 1Ω value—making it the lowest resistance available in the industry. These resistors offer exceptional performance with ±0.1% precision tolerance and a highly stable ±25ppm/K temperature coefficient of resistance (TCR). This level of accuracy and reliability makes them ideal for demanding applications where electrical performance must remain consistent under varying conditions.
At an ambient temperature of 70°C, the MCW 0406 AT resistors can operate at a maximum temperature of +155°C and dissipate up to 250 mW. This high thermal capability allows engineers to use these components in extreme environments without compromising power levels or electrical integrity. Whether the application requires full power operation or partial power for enhanced stability, the MCW 0406 AT delivers consistent performance every time.
Beyond their impressive thermal characteristics, the MCW 0406 AT resistors are also designed to withstand harsh environmental conditions. They demonstrate excellent stability during thermal cycling and in high humidity environments. When mounted on 4-layer FR4 printed circuit boards, they can endure 2,500 rapid temperature cycles between -40°C and +125°C. Vishay employs a specialized coating system to ensure strong moisture resistance, further enhancing the device’s durability.
The MCW 0406 AT has passed rigorous accelerated aging tests, including operation at +85°C and 85% relative humidity for 1,000 hours. This certification ensures that the resistors are suitable for a wide range of applications, from industrial to automotive systems. Their AEC-Q200 compliance adds to their appeal, making them a reliable choice for advanced power management systems in various fields.
These resistors are particularly well-suited for applications such as power management in industrial and automotive electronics, including xenon and LED lighting systems, engine control units, transmission control modules, and braking systems. With sample availability now, and volume production scheduled to begin in February 2013, the MCW 0406 AT is set to become a key component in next-generation power solutions. Lead times for larger orders are expected to be between eight and ten weeks, ensuring timely delivery for design and manufacturing teams.
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