Product Overview
500Ω 10-Watt Cement Block Wirewound Resistor
Condition
Unused new old stock (NOS). Markings legible: 500Ω 10% 10W. Axial wire leads are clean and straight. Sold each.
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Product Overview
This unbranded 10-watt ceramic cement resistor provides 500 ohms of resistance with a ±10% tolerance for power-handling circuitry. Built in an open ceramic boat sealed with potting compound, it is designed for steady dissipation in power supplies, bleeder circuits, and vintage electronics repairs.
Key Features
- Resistance: 500 Ω
- Power rating: 10 W
- Tolerance: ±10%
- Package type: Rectangular ceramic boat with cement potting
- Termination: Axial wire leads
- Body length: 48 mm
Applications
- Dropping or bleeder resistor in tube audio equipment and linear power supplies
- Dummy load testing for low-wattage audio amplifiers and bench circuits
- In-rush current limiting or voltage dividing in custom DIY electrical projects
Frequently Asked Questions
How is the resistive element constructed inside the ceramic body?
The unit features a wirewound resistive element housed inside an open ceramic casing and potted with a heat-resistant cement compound for electrical insulation and physical protection.
Can this resistor be mounted directly to a circuit board or terminal strip?
The axial wire leads can be bent for through-hole printed circuit board installation or soldered to point-to-point terminal strips, leaving clearance for thermal dissipation. Each piece costs less as the order grows - see the price-break table on this page.
Ten watts of wirewound ceramic is the classic cure for circuits that need to dump heat without complaint. Solder it in, leave some breathing room, and let it do the quiet work.
