CAY16-391J4LF is a four-element isolated chip resistor array featuring convex terminations and RoHS-compliant tin-plated (LF) leads. The device contains four isolated 390 ohm resistors with ±5% tolerance and operates across a temperature range of -55°C to 125°C. It delivers a power rating of 0.0625 W per resistor at 70°C with a maximum working voltage of 50 V, and exhibits a temperature coefficient of ±200 PPM/°C for stable performance across varying thermal conditions. The 1206 package size (3.20 × 1.60 mm) with convex terminations enables reliable surface-mount assembly and is commonly used in consumer electronics, industrial control circuits, and telecommunications equipment where space efficiency and component isolation are required.