Overview
The Helipot A-R100L.25 is a precision multi-turn potentiometer manufactured by Helipot (Beckman) for applications requiring precise resistance adjustment. With a 100 ohm resistance value and 0.25% linearity tolerance, this panel-mount unit delivers stable performance in measurement, control, and calibration circuits.
Key Features
- 10-Turn Design: Multi-turn construction allows fine adjustment and repeatability for precision tuning.
- 0.25% Linearity: Tight linearity specification ensures accurate resistance tracking across the adjustment range.
- ±3% Resistance Tolerance: Holds specified resistance value within ±3% accuracy.
- Panel Mount Bushing: Bushing-mount configuration designed for secure panel installation.
- 1/4″ Shaft: Standard 1/4″ diameter shaft compatible with knob and coupling assemblies.
Technical Specifications
- Resistance Value: 100 Ω
- Linearity Tolerance: ±0.25%
- Resistance Tolerance: ±3%
- Configuration: 10-Turn (Multi-turn)
- Mounting Type: Panel mount with bushing
- Shaft Diameter: 1/4″
- Shaft Length: 0.50″
- Bushing Length: 0.345″
- Overall Depth: 1.813″
- Overall Height: 1.96″
- Part Number: A-R100L.25
- Manufacturer: Helipot (Beckman Instruments)
Typical Applications
Helipot precision potentiometers are widely used in laboratory instruments, test equipment, and industrial control systems. The A-R100L.25 is suitable for:
- Oscilloscope calibration and adjustment circuits
- Analog measurement systems requiring precision gain control
- Bridge circuit balancing and null adjustment
- Instrumentation feedback networks
- Temperature compensation and sensor offset adjustment
Compatibility & Replacements
Compatible With
- Panel-mount instrument assemblies with 0.345″ bushing entry holes
- Circuits requiring 100 ohm variable resistance
- Analog control and adjustment systems
- Equipment using standard 1/4″ shaft knobs and couplings
Replaces / Drop-In Replacement For
- Other Helipot Model A 100 ohm potentiometers with equivalent specifications
- Precision wirewound potentiometers of 100 ohm, 10-turn configuration with panel bushing mount
Works With
- Standard panel-mount knobs (1/4″ shaft diameter)
- Flexible shaft couplings and drive systems
- Dial indicators and pointer assemblies
- Potentiometer extension shafts and adapters
