Overview
The Dale NH-50 is a 50W power resistor rated at 50 ohms with 1% tolerance. This aluminum housed wirewound unit combines industrial-grade construction with non-inductive performance, making it suitable for demanding load-bank, RF termination, test equipment, and heatsink-mounted applications where thermal stability and accuracy matter.
Key Features
- 50W power rating with aluminum heatsink housing for thermal dissipation
- 1% resistance tolerance for precision circuit matching
- Non-inductive wirewound construction minimizes high-frequency distortion
- Molded, welded construction for complete environmental protection
- Chassis/panel mounting with lugs terminals for secure installation
- MIL-PRF-18546 qualified performance characteristics
Technical Specifications
- Resistance: 50 Ohms
- Power Rating: 50 Watts
- Tolerance: ±1%
- Technology: Wirewound
- Construction: Aluminum housed, non-inductive
- Temperature Coefficient: 20 PPM/°C
- Terminal Type: Lugs
- Mounting: Chassis/Panel
- Weight: Approximately 0.10 lbs
- Thermal Shock Rating: ±(0.5% + 0.05Ω) ΔR
Typical Applications
The Dale NH-50 excels in high-power dissipation circuits including:
- Load bank testing and dummy load systems
- RF and RF-over-fiber equipment terminations
- Power supply testing and validation
- High-current circuit protection and limiting
- Industrial test fixtures and measurement equipment
Compatibility & Replacements
Compatible With
- General-purpose 50W aluminum housed resistor sockets
- Chassis-mounted heat-sink applications up to 50W continuous dissipation
- MIL-PRF-18546 qualified component specifications
- Industrial control and test equipment requiring precision loads
Replaces / Drop-In Replacement For
- Other Dale NH-50 series 50 ohm units (original equipment spares)
- Equivalent Vishay RH-50 50 ohm variants where heatsink mounting is applicable
Works With
- Any DC or AC circuit requiring a fixed 50 ohm load within 50W thermal limits
- Impedance matching networks in RF and telecommunications
- Standard industrial power supply and test equipment racks
