Product Overview
Chassis-Mount Aluminum Power Resistor 100 Ohm 25 Watt ±1%
Product Condition
Unused, New Old Stock. Gold anodized aluminum housing showing minor surface scuffs, no visible corrosion. Leads are straight and untarnished. Mounting holes are clean.
Ships same business day. Reliable parts at honest prices since 1999. Real humans.
Product Overview
Dale RH-25 wirewound resistor rated at 100 ohms, 25 watts, with ±1% tolerance. This series uses a gold anodized aluminum chassis designed to transfer heat to a mounting surface for proper power dissipation. The RH-25 is part of Vishay Dale’s precision power resistor line commonly used in industrial, laboratory, and power supply applications.
When mounted to an appropriate heatsink or metal chassis, the resistor is rated for full 25 watt dissipation. Wirewound construction provides stable resistance value and predictable performance under load.
Key Features
- Manufacturer: Dale (Vishay Dale RH series)
- Series: RH-25
- Resistance: 100 Ohms
- Power rating: 25 Watts (with proper heatsinking)
- Tolerance: ±1%
- Wirewound element construction
- Gold anodized aluminum housing
- Chassis-mount with two mounting flanges
- Axial lead configuration
- Designed for industrial and precision applications
Applications
- Power supply load and bleeder resistors
- Motor control circuits
- Industrial automation systems
- Test and measurement equipment
- Audio amplifier power stages
- Current limiting in high-power circuits
- Educational power electronics labs
Frequently Asked Questions
Is the 25W rating valid without a heatsink?
The 25 watt rating applies when properly mounted to a suitable heatsink or chassis surface. Free-air dissipation is lower.
What tolerance does this resistor have?
This unit is marked 1%, indicating ±1% resistance tolerance.
Can this be used as a load resistor?
Yes. A 100 ohm, 25 watt resistor is commonly used as a load or bleeder resistor in power supply testing and design, provided power limits are respected.
What material is the housing?
The body is an anodized aluminum chassis designed for heat transfer.
Is more stock available?
Available quantity reflects current inventory on hand.
Built to shed heat and hold value. Mount it properly and it will do steady, predictable work in whatever power stage comes next.
