CAY16-221J4LF is a 4-element chip resistor array with convex terminations designed for compact surface-mount circuit applications. The device features a resistance value of 220 ohms per element with ±5% tolerance, operating across a temperature range of -55°C to 125°C. It delivers 0.0625 W power rating per resistor at 70°C with a maximum working voltage of 50 V and a temperature coefficient of ±200 PPM/°C. The array is housed in a 1206 package size with tin-plated RoHS-compliant terminations, making it suitable for high-density PCB layouts in consumer electronics, industrial control systems, and telecommunications equipment where space efficiency and reliability are essential.