Overview
The Allen-Bradley RCR32G270JS is a military-grade carbon composition resistor rated at 27Ω with a 1-watt power dissipation. Built to MIL-R-39008 specifications, this component offers proven reliability for demanding industrial, commercial, and legacy equipment repair applications. The hot-molded carbon composition construction and ±5% tolerance ensure stable electrical performance across temperature and environmental conditions.
Key Features
- 27Ω resistance value with ±5% tolerance
- 1-watt power rating for medium-power signal and load conditioning circuits
- Hot-molded carbon composition design—exceptionally rugged with low inductance
- MIL-R-39008 military specification rating (0.001% failure rate per 1,000 hours)
- Oxygen-free copper axial leads for corrosion resistance and reliable connections
- Temperature range up to 70°C for stable operation in industrial environments
Technical Specifications
| Resistance Value | 27Ω |
| Power Rating | 1W |
| Tolerance | ±5% |
| Construction Type | Hot-Molded Carbon Composition |
| Lead Type | Axial, Oxygen-Free Copper |
| Operating Temperature Range | -55°C to 70°C (typical) |
| Military Specification | MIL-R-39008 |
| Failure Rate | 0.001% per 1,000 hours |
| Mounting Style | Through-hole (axial leads) |
| Number of Leads | 2 |
| Manufacturer | Allen-Bradley |
Typical Applications
- Circuit protection and current limiting in industrial automation systems
- Signal conditioning and biasing in control equipment
- Legacy equipment repair and replacement—drop-in for worn or failed units
- PLC input/output buffer networks
- Power supply circuits and voltage dividers in panel-mounted controllers
- Equipment manufactured from the 1970s–1990s requiring MIL-spec components
Compatibility & Replacements
The RCR32G270JS is a direct replacement for any circuit requiring a 27Ω, 1W, ±5% carbon composition resistor with axial leads. No alternative part redesign is necessary—simply remove the failed resistor and install the new one. Allen-Bradley’s RCR32-series resistors are widely recognized in industrial control and automation markets for their reliability and longevity.
Related Allen-Bradley RCR32 resistor values in the same wattage and tolerance class include RCR32G240JS (24Ω), RCR32G271JS (270Ω), and RCR32G273JS (27kΩ). Always verify resistance and wattage ratings before installation to ensure correct circuit operation.
