CRM1206-FX-1R00ELF is a high-power current sense chip resistor manufactured by Bourns using thick film technology, specifically designed for current sensing, power supplies, stepper motor drives, and snubber applications in flyback power supplies. The device features a 0.5 W power rating at 70°C with an operating temperature range of -55°C to +155°C, and a maximum working voltage of 200 V for resistance values from 1 ohm to 1 megohm. It offers a resistance value of 1.00 ohm with ±1% tolerance and ±100 ppm/°C temperature coefficient, with a maximum rated current of 4 A and insulation resistance greater than 1000 megohms. The 1206 package dimensions are 3.10 mm × 1.60 mm with a thickness of 0.55 mm, and the device is RoHS compliant with tin-plated termination. This resistor is ideal for precision current sensing applications requiring low resistance values, high power handling, and excellent stability across wide temperature ranges.