B103 3 Pin POTENTIOMETER for Welding Machine. B103 Preset. welding machine potentiometer. Inverter welding machine potentiometer. 10K POTENTIOMETER for Welding Machine
- Model Number: B103 POTENTIOMETER
B103 3-Pin Potentiometer for Welding Machine – Product Description
The B103 3-Pin Potentiometer is a high-quality variable resistor designed for precise current and voltage adjustment in welding machines. Built with superior durability and smooth rotation control, this potentiometer ensures accurate performance and long life, making it ideal for inverter welders, ARC welders, MIG/TIG machines, and other industrial control applications.
Its compact design, stable resistance value, and easy 3-pin connection make it a perfect replacement part for welding machine PCB boards.
Key Features
- ✔ High-quality B103 (10KΩ) resistance value for smooth and stable control
- ✔ 3-pin design for easy wiring and compatibility
- ✔ Ideal for welding machine current/voltage adjustment
- ✔ Smooth rotation with excellent linearity
- ✔ Long-lasting carbon film construction
- ✔ Accurate and noise-free operation
- ✔ Fits inverter welding machines, ARC/MMA welders, MIG/TIG units, and more
- ✔ Compact and sturdy for industrial usage
Full Specifications
General Specifications
- Model: B103
- Type: Rotary Potentiometer
- Pins: 3-Pin
- Resistance Value: 10KΩ (B10K)
- Tolerance: ±10% (typical)
- Rotation Angle: 300° approx.
- Control Type: Linear (B-type)
Electrical Specifications
- Rated Power: 0.1W – 0.25W (depending on variant)
- Maximum Working Voltage: 150V DC approx.
- Insulation Resistance: ≥ 100MΩ
- Dielectric Strength: 250V AC for 1 minute
Mechanical Specifications
- Shaft Material: PVC
- Shaft Length: 15–20 mm (varies by variant)
- Shaft Diameter: 6 mm standard
- Mounting Thread: M7 x 0.75 approx.
- Rotational Life: 10,000+ cycles
Applications
- Welding machine current/voltage control
- Inverter ARC/MMA welder repair
- MIG/TIG welding machine adjustments
- Power supply units
- Industrial control systems
- Electronic DIY projects


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