The OY39GKE is a 2W fixed ceramic resistor from the OY series, featuring a resistance of 3.9 ohms with a ±10% tolerance. It is engineered for circuits associated with surges and high peak power, offering a maximum working voltage of 400V and the ability to handle a single 80 Joule impulse. This component operates over a temperature range of -40°C to +220°C. Common applications include high voltage power supplies, R-C snubber circuits, and inrush limiters where it provides enhanced performance and can replace carbon composition resistors.