Overview
The Allen-Bradley RCR20G102JS is a military-specification carbon composition resistor designed for demanding industrial and control applications. With a resistance value of 1kΩ, 1/2 watt power rating, and 5% tolerance, this axial-lead component delivers stable, reliable performance in circuit protection, biasing, and signal conditioning applications.
Key Features
- Military-grade RCR designation for enhanced reliability specifications
- Carbon composition construction with hot-molded design for ruggedness and minimal inductance
- Oxygen-free copper axial leads for superior conductivity and corrosion resistance
- Suitable for temperature operation up to 70°C ambient
- Non-magnetic and non-inductive characteristics ideal for precision circuits
Technical Specifications
- Resistance Value: 1 kΩ (1000 Ω)
- Power Rating: 1/2 watt (0.5W)
- Tolerance: ±5%
- Construction Type: Carbon composition, hot-molded
- Lead Type: Axial, oxygen-free copper
- Operating Temperature: Up to 70°C ambient
- Reliability: 0.001% failure rate per 1000 hours (MIL-R-39008 compliance)
- Configuration: 2-terminal, through-hole
- Military Standard: MIL-R-39008 Grade-S
Typical Applications
The RCR20G102JS is suited for:
- Biasing networks in discrete amplifier stages
- Current limiting and load pull-down resistors
- Filter and coupling circuits in analog signal conditioning
- Industrial control system feedback networks
- Legacy equipment repair and maintenance where authentic components are critical
Compatibility & Replacements
This component is a military-grade variant (RCR20G102JS) of the Allen-Bradley commercial carbon composition resistor line. The RCR prefix indicates Grade-S military specification with enhanced reliability. Related commercial versions include RC20GF102J. When sourcing replacements, confirm exact tolerance and power rating requirements to ensure circuit performance. This part is supplied new in box and is ideal for applications requiring documented component provenance.






