CRS2512-JW-4R7ELF is a high-power anti-surge chip resistor from the Bourns CRS Series designed for pulse power and high-voltage applications. This 2512-size resistor features a 2 W power rating at 70°C, a maximum working voltage of 300 V, and a maximum overload voltage of 600 V, with an operating temperature range of -55°C to +155°C. The device has a resistance value of 4.7 ohms with ±5% tolerance and ±100 PPM/°C temperature coefficient. It is constructed with a ceramic substrate, resistive element, and lead-free tin-plated termination (RoHS compliant), and demonstrates excellent surge performance under 1.2/50 µs waveform testing. The CRS2512-JW-4R7ELF is ideal for telecommunications, power supplies, and consumer electronics applications where reliable surge protection and high-voltage handling are essential.