Overview
The Allen-Bradley RC20GF621J is a precision carbon composition resistor engineered for dependable service in industrial control systems, legacy equipment repairs, and demanding electrical applications. This 620Ω, 1/2W component features a ±5% tolerance and delivers the rugged construction for which Allen-Bradley is known. Produced to exacting military standards, the RC20GF621J combines reliable resistance with superior pulse-handling capability and low inductance—ideal for circuits requiring stable, consistent performance over time.
Key Features
- Resistance Value: 620Ω with ±5% tolerance
- Power Rating: 0.5W (1/2 watt)
- Construction: Hot-molded carbon composition with oxygen-free copper leads
- Military Grade: MIL-SPEC reliability and pulse-withstanding capability
- Axial Configuration: Dual-lead design for PCB and breadboard mounting
- Operating Temperature Range: Up to 70°C
Technical Specifications
The RC20GF621J is engineered for stability and longevity. Its carbon composition construction delivers low noise and non-magnetic, non-inductive characteristics essential for sensitive analog and control circuits. The hot-molding process ensures exceptional ruggedness and mechanical reliability, while oxygen-free copper leads resist oxidation and maintain consistent electrical contact.
Typical Applications
- Industrial control panel repairs and refurbishment
- Legacy equipment restoration and troubleshooting
- Audio and instrumentation circuit biasing
- Power supply filtering and load resistor networks
- Pull-up and pull-down networks in digital circuits
Compatibility & Replacements
The Allen-Bradley RC20GF621J is part of the RC series military-grade carbon composition resistor line. Original equipment manufacturers and field service technicians specify this part for critical repairs where component reliability cannot be compromised. When sourcing replacements for legacy equipment, verify the exact resistance value and tolerance requirement, as substituting lower-grade resistors may compromise circuit performance or system uptime. The RC20GF621J is new in box and ready for immediate deployment.






