CAT16-681J4LF is a four-element isolated chip resistor array featuring concave terminations and ±5% resistance tolerance. The device contains four isolated resistors with a resistance value of 680 ohms (decoded from "681J4" nomenclature), operating at a maximum working voltage of 50V and a power rating of 0.250W per package at 70°C. It exhibits a temperature coefficient of ±200 PPM/°C and operates reliably across the temperature range of -55°C to +125°C, with resistance stability maintained through rigorous testing including temperature cycling, moisture load life, and load life evaluations. The 1206 package size with tin-plated RoHS-compliant terminations makes it suitable for automated assembly in consumer electronics, industrial control systems, and telecommunications equipment where space efficiency and reliability are essential.