Overview
The Allen-Bradley RCR20G271JS is a MIL-SPEC grade hot-molded carbon composition resistor engineered for demanding industrial, military, and commercial applications. With a resistance value of 270 ohms and power rating of 0.5 watts (1/2W), this component delivers proven reliability in pulse-withstanding, high-frequency stability, and long-term performance. The RCR20G271JS combines rugged construction with low inductance and non-magnetic characteristics essential for precision electronic circuits.
Key Features
- Hot-Molded Carbon Construction: Solid cylindrical carbon resistive element with embedded leads provides exceptional ruggedness and dependable performance
- MIL-SPEC Reliability: Outstanding pulse withstanding capability and high frequency stability for mission-critical applications
- Oxygen-Free Copper Leads: Ensures superior conductivity and long-term solder joint integrity
- Non-Magnetic, Non-Inductive Design: Ideal for sensitive RF and precision measurement circuits
- Temperature Stable: Operates up to 70°C in ambient temperature environments
- Made in USA: American-manufactured quality component
Technical Specifications
- Resistance Value: 270 Ω (ohms)
- Power Rating: 0.5 W (1/2 watt)
- Tolerance: ±5%
- Construction Type: Hot-molded carbon composition
- Lead Type: Oxygen-free copper, axial leads
- Operating Temperature Range: Up to 70°C
- Standard Compliance: MIL-R-39008 (Military Grade-S designation)
- Characteristics: Non-magnetic, non-inductive, low inductance
Typical Applications
- Industrial control circuits and machinery
- Military and aerospace electronic assemblies
- Precision measurement and test equipment
- RF and high-frequency circuits requiring low inductance
- Audio and instrumentation equipment
- Power supply filtering and bias networks
Compatibility & Replacements
The RCR20G271JS is a direct replacement for equivalent MIL-SPEC carbon composition resistor applications. When specifying alternatives, verify that replacement components meet identical electrical ratings (270Ω, 0.5W, ±5%) and MIL-R-39008 reliability requirements. Consult your system documentation to confirm footprint compatibility on PCBs using axial lead spacing. For legacy equipment upgrades, this resistor maintains drop-in compatibility with industrial control and measurement systems originally designed for Allen-Bradley carbon composition resistors.






