Overview
The Dale RW22G401 is a precision power wirewound resistor designed for demanding electrical applications. This pack of 5 units delivers 400 ohms of resistance at 37W power rating with a ±10% tolerance. Wirewound construction provides superior thermal stability and low inductance compared to thin-film resistors, making the Dale RW22G401 a trusted choice for audio power amplifiers, RF circuits, and industrial test equipment where dissipation and accuracy matter.
Key Features
- 37W power rating per resistor
- 400 ohm fixed resistance value
- ±10% tolerance specification
- Axial lead configuration for through-hole PCB mounting
- Wirewound construction for thermal performance and low noise
- Pack of 5 units—reduce per-unit cost on bulk orders
Technical Specifications
| Resistance Value | 400 Ohms |
| Power Rating | 37W |
| Tolerance | ±10% |
| Construction Type | Wirewound |
| Termination Style | Axial Leads |
| Part Number | RW22G401 |
| Package Quantity | Pack of 5 |
| Manufacturer | Dale (Vishay) |
Typical Applications
- Power amplifier load resistors and dummy loads
- RF attenuators and termination networks
- Industrial test benches and measurement equipment
- Heating and thermal management circuits
- Audio power amp biasing and output stage loads
- Motor control and circuit braking resistors
Compatibility & Replacements
Compatible With
- Standard PCB through-hole designs with 0.1″ pitch spacing
- Linear and switching power supply circuits
- Test and measurement instruments requiring fixed power loads
- Audio amplifier and RF equipment designs
Replaces / Drop-In Replacement For
Verify exact compatibility with your system integrator or equipment manual before ordering. Similar Dale wirewound resistor series (RH, RX) may offer substitutes; consult manufacturer documentation for specific model numbers.
Works With
- Standard 0.125″ diameter through-hole PCB mounting
- Breadboard and perf-board prototyping
- Axial component soldering and wave-soldering processes
- High-temperature potting compounds and conformal coatings
