When it comes to electronic design and circuit control, potentiometers and power supplies (board mount) are two essential components. Whether you’re adjusting resistance for signal tuning or converting voltage for stable power delivery, these devices ensure precision, efficiency, and long-term reliability.

Potentiometers and Variable Resistors

Potentiometers, often called variable resistors, allow users to adjust electrical resistance manually, making them ideal for fine-tuning voltage, current, or signal levels in a circuit. They are widely used in audio equipment, motor controls, measurement instruments, and consumer electronics.

Types of Potentiometers

Rotary Potentiometers & Rheostats (6,696 products)

Classic knob-style controls used in audio systems, amplifiers, and test instruments.

Slide Potentiometers (828 products)

Designed for smooth, linear adjustment, common in mixing consoles and audio sliders.

Trimmer Potentiometers (15,833 products)

Compact, adjustable resistors used for calibration and fine-tuning during manufacturing.

Joystick Potentiometers (378 products)

Enable directional control in robotics, gaming, and industrial equipment.

Thumbwheel Potentiometers (356 products)

Space-saving components for panel controls and compact devices.

Adjustable Power Resistors (610 products)

Handle higher power loads while maintaining resistance flexibility.

Accessories (75 products) & Scale Dials (58 products)

Enhance usability and accuracy in measurement and adjustment.

Power Supplies – Board Mount Solutions

For reliable circuit performance, a power supply is just as crucial as resistors or semiconductors. Board mount power supplies are compact solutions designed for direct integration into printed circuit boards (PCBs). They deliver regulated voltage and current to sensitive electronic components.

Categories of Board Mount Power Supplies

DC-DC Converters (417,966 products)

Convert one DC voltage level to another efficiently, widely used in IoT, automotive, and industrial electronics.

AC-DC Converters (2,815 products)

Transform mains AC into regulated DC power for PCB applications.

LED Drivers (440 products) & LED Supplies (27 products)

Provide stable current for LED lighting systems, ensuring long lifespan and consistent brightness.

Accessories (353 products)

Include mounting kits, heat sinks, and protective covers to extend functionality.

Why These Components Matter

Precision Control – Potentiometers offer flexible adjustment of electrical parameters.

Stable Performance – Power supplies ensure clean and regulated energy delivery.

Versatility – Available in thousands of variations, suitable for consumer, industrial, and research applications.

Scalability – Ideal for projects ranging from small DIY electronics to industrial automation systems. Know more about Power Supplies - Board Mount.

Final Thoughts

Both potentiometers and board mount power supplies form the backbone of modern electronic systems. Choosing the right type—whether it’s a trimmer potentiometer for calibration or a DC-DC converter for efficient power management—ensures that your circuit operates with precision and reliability.

2025.09

Potentiometers and Power Supplies – A Complete Guide