( XRS-1206-1%1/4W2K21 ) RESISTENCIA SMD 1206 1% 1/4W 2K21

# XRS-1206-1%1/4W2K21 SMD Resistor The XRS-1206-1%1/4W2K21 is a surface-mount resistor in the widely used 1206 package format, designed for engineers who need precision passive components in compact form factors. This part represents a standard offering within the SMD resistor family, combining reliable performance with the small footprint that modern PCB design demands. This resistor utilizes the 1206 package, one of the most common surface-mount sizes in electronics manufacturing. The 1206 form factor balances several practical advantages: it is small enough to enable high-density circuit layouts typical of contemporary devices, yet large enough to handle manual rework and soldering without requiring specialized micro-assembly equipment. This makes it a popular choice across both large-scale industrial production and prototype development environments. The 1% tolerance specification indicates this resistor maintains tight control over its actual resistance value relative to its nominal rating. For circuit designs requiring stable voltage dividers, precision signal conditioning, or measurement instrumentation, this tolerance level provides the accuracy needed without requiring adjustments or calibration at the PCB level. The 1/4W power rating indicates the resistor's thermal dissipation capability, making it suitable for low-power signal circuits, digital logic applications, and sensing circuits common in industrial control systems. Engineers specify precision resistors like this part in numerous applications including audio signal processing, sensor interfaces, precision voltage references, feedback networks in amplifier circuits, and biasing networks in analog and mixed-signal designs. The SMD format also makes this resistor ideal for automated assembly environments where pick-and-place machinery is used in high-volume manufacturing. The combination of standard package geometry, precision tolerance, and moderate power rating makes the 1206 SMD resistor a foundational component in contemporary electronics. When compared to alternatives, an engineer might choose this specific part when they require the balance between precision and cost-effectiveness that the 1% tolerance provides, without needing the complexity or expense of metal-film or wirewound resistor technologies. The 1206 package is also thermally stable across typical industrial operating ranges, and the SMD construction eliminates the lead-forming and through-hole drilling steps associated with conventional resistors, reducing overall PCB manufacturing complexity. This resistor is suitable for applications ranging from consumer electronics and telecommunications equipment to industrial automation, medical devices, and test instrumentation where reliable, precision passive components form the foundation of circuit performance.