Overview
The Clarostat VK-100-N is a precision fixed wirewound resistor rated at 1 ohm with a 100 watt power dissipation capacity. Designed for demanding applications requiring stable resistance and high thermal performance, this resistor features a ceramic substrate with a protective vitreous enamel coating that resists moisture, vibration, and mechanical stress. The VK-100-N is commonly found in industrial control circuits, power electronics, and precision measurement systems where reliable low-resistance paths are critical.
Key Features
- 100 watt continuous power rating for high-current applications
- Wirewound construction with 5% tolerance for stable resistance
- Ceramic body with vitreous enamel coating for environmental protection
- Compact tubular design measuring approximately 3/4″ diameter × 6-1/2″ length
- Suitable for both AC and DC circuit applications
- Legacy industrial component with established field reliability
Technical Specifications
- Resistance Value: 1 ohm
- Power Rating: 100 watts
- Tolerance: ±5%
- Technology: Wirewound
- Construction: Ceramic with vitreous enamel coating
- Dimensions: Approximately 3/4″ D × 6-1/2″ long
- Manufacturer: Clarostat Controls and Resistors
- Part Number Reference: 411 8505
Typical Applications
- Current-limiting resistors in power supply circuits
- Shunt resistors for ammeter circuits and current sensing
- Load banks and dummy load resistors for testing
- Industrial heating and thermal test applications
- Legacy control panel retrofits and replacement installations
- High-power electronic load dissipation circuits
Compatibility & Replacements
Compatible With
- Standard DC power supplies up to 100 watts dissipation
- Industrial control circuits and switchgear designs
- Test equipment and laboratory power systems
- Legacy panel configurations and retrofit applications
- Any circuit requiring fixed 1 ohm precision resistance
Replaces / Drop-In Replacement For
- Clarostat VK-100-N series with identical 1 ohm rating (original equipment)
- Verify resistance value matches your circuit requirements before ordering
Works With
- Universal compatibility with DC and AC circuits
- Standard panel-mount or chassis installation methods
- No special interfacing or control software required
- Direct replacement in legacy industrial systems






