Product Overview
Unused NOS Dale RS-2B 1 kΩ 1% Axial Wirewound Power Resistor
This axial wirewound resistor provides a stable 1 kΩ reference for analog and control circuits where consistent ohm/Ω values and long service life are important. The RS-2B format supports rugged installation, and a practical assembly tip is to keep lead lengths uniform to support predictable behavior in feedback paths. This contributes to steady operation in precision designs.
Product Condition
Unused, New Old Stock.
Product Overview
Power rating: RS-2B parts are rated around 3 W in typical use, but are often derated for 1–2+ W in designs that prioritize tight stability and low drift over maximum dissipation.
The Dale RS-2B series is a long-standing wirewound family used in industrial controls, instrumentation, and high-reliability assemblies. This 1 kΩ, 1% resistor uses a welded wirewound element on a ceramic core with a high-temperature silicone coating for durability, low noise, and strong surge capability. Its low TCR behavior helps maintain consistent resistance across normal operating temperatures, and the tinned copperweld leads support reliable soldering in through-hole designs.
Key Features
- 1 kΩ resistance with 1% tolerance
- RS-2B welded wirewound construction
- Ceramic core with high-temperature silicone coating
- Low TCR behavior for controlled temperature response
- Low noise and strong surge-handling characteristics
- Often run at 1–2 W for improved long-term stability
- Tinned copperweld axial leads
Applications
- Feedback and gain-setting roles in analog circuits
- Reference and divider positions in instrumentation
- Industrial or aerospace-style control assemblies
- Current-limit or sense positions in analog hardware
- Restoration of legacy test or audio equipment
- Long-life through-hole precision circuits
Frequently Asked Questions
Why are RS-2B resistors commonly derated?
Derating to 1–2 W supports lower drift and tighter long-term stability compared to operating at their higher wattage capability.
Is the 1% tolerance suitable for precision analog work?
Yes, it supports steady gain-setting, reference, and divider functions.
Does the wirewound construction improve reliability?
The welded element and ceramic core contribute to long-term value stability, low noise, and strong surge performance.
How stable is its resistance over temperature?
The RS series typically exhibits a low TCR around the 1 kΩ range, helping maintain value across normal operating conditions.
You can place it in feedback networks and use its controlled 1 kΩ wirewound construction to build reliable reference or sensing stages directly on your PCB.
