Overview
The Dale RH-50 500-ohm 50W 1% resistor is a heavy-duty wirewound power resistor designed for reliable performance in industrial control, RF, and power supply applications. This lot includes six new open-box units featuring the robust RH-50 chassis mount enclosure. With a ±1% tolerance and exceptional stability, these resistors meet demanding electrical requirements in telecommunications, test equipment, and broadcast systems.
Key Features
- Resistance Value: 500 Ohms
- Power Rating: 50 Watts
- Tolerance: ±1%
- Mounting Style: Chassis Mount
- Construction: Wirewound, enclosed aluminum heatsink
- High Stability: <0.05% per year temperature coefficient
- Termination: Axial lugs for secure screw-down connections
Technical Specifications
The Dale RH-50 is constructed with wirewound precision film on an aluminum heatsink chassis for efficient thermal dissipation. Designed to meet rigorous industrial standards, these resistors exhibit minimal drift and consistent performance across extended operating ranges.
Typical Applications
- Power supply load resistors and dummy loads
- Broadcast and RF equipment terminations
- Industrial control and automation circuits
- Test and measurement equipment
- Heater and braking resistors in motor drives
- Power dissipation in switching power supplies
Compatibility & Replacements
Compatible With
- Industrial power supplies and UPS systems
- RF and broadcast equipment racks
- Motor drive and VFD braking circuits
- Test benches and laboratory power systems
- Standard DIN rail or chassis mounting systems
Replaces / Drop-In Replacement For
The Dale RH-50 500-ohm 50W model directly replaces other RH-50 series units with identical specifications. Verify exact resistance value and wattage requirements before substitution. Other Vishay Dale RH-series configurations (10Ω, 50Ω, 100Ω, 120Ω, etc.) follow the same mechanical footprint but require exact impedance matching for proper circuit operation.
Works With
- Standard screw-terminal chassis mounting plates
- Aluminum heatsink assemblies and thermal management systems
- Power distribution frameworks in industrial cabinets
- Cooling fans and forced-air convection systems for high-power dissipation
