Allen-Bradley RCR32G621JS Resistor 620? 1W 5% MIL-Spec Carbon Composition The Allen-Bradley RCR32G621JS is a high-quality carbon composition resistor designed to meet stringent MIL-Spec standards. With a resistance value of 620 ohms, a power rating of 1 watt, and a tolerance of ±5%, this resistor is well-suited for applications requiring reliable performance under demanding conditions. Key Features Resistance Value: 620 ohms Power Rating: 1 watt Tolerance: ±5% Construction: Carbon composition Compliance: MIL-Spec standards Applications Carbon composition resistors like the RCR32G621JS are renowned for their ability to handle high-energy pulses and their low inductance, making them ideal for: High-frequency circuits Pulse applications Snubber circuits General-purpose electronic equipment Considerations Due to the obsolescence of carbon composition resistors by most manufacturers in the late 1990s, existing inventory may be several decades old. As a result, lead lengths are not guaranteed, and there may be some oxidation on the tinned copper leads. It is advisable to clean the leads with a Scotch-Brite pad to ensure proper solderability. For those seeking alternatives, Vishay Dale offers film resistor types that are similar to Allen-Bradley’s carbon composition models. While direct interchangeability is not implied due to differences in technology, electrical characteristics typically will be met or exceeded. When selecting a resistor for your application, consider factors such as power dissipation, voltage rating, and environmental conditions to ensure optimal performance and reliability.