B100K 20mm Knurled Shaft Lin Potentiometer – Elcon

Description

Technical Overview of the B100K 20mm Linear Potentiometer

The B100K 20mm Linear Potentiometer is a high-quality variable resistor designed for smooth and precise manual control in electronic circuits. Featuring a 100k Ohm resistance and a Linear (B) Taper, this potentiometer provides a proportional change in resistance relative to the rotation of the shaft. The 20mm knurled (split) shaft is ideal for mounting standard push-on knobs, making it perfect for front-panel applications. At BuyCircuitParts, we ensure our potentiometers are built to last, keeping your control interfaces “on track.”

Key Specifications and Functional Parameters

B100K 20mm Linear Potentiometer

To ensure this component fits your panel requirements, here are the technical specifications:

• Resistance Value: 100k Ohm.

• Taper Type: Linear (B Type).

• Shaft Length: 20mm (including thread).

• Shaft Type: Knurled / Split Shaft (6mm diameter).

• Rotation Angle: 300° ± 5°.

• Power Rating: 0.125W.

• Package Type: Panel Mount with Solder Lugs.

Why Choose the B100K for Linear Control?

The B100K 20mm Linear Potentiometer is favored for its “B” taper, which ensures that a 50% turn of the knob results in exactly 50% resistance. This predictable behavior is essential for laboratory equipment, dimming circuits, and voltage tuning where accuracy is key. The long 20mm shaft provides enough clearance for thick enclosures or custom panels. At BuyCircuitParts, our potentiometers are selected for their low rotational noise and consistent carbon track quality, ensuring a smooth user experience without “scratchy” signal jumps.

Common Applications for the B100K Linear Potentiometer

The B100K 20mm Linear Potentiometer is a versatile control element:

1. Variable Power Supplies: Adjusting the output voltage or current limits with precision.

2. Audio Equipment: Used as a balance control or linear gain adjustment in mixing consoles.

3. Motor Speed Controllers: Setting the base speed for PWM-based DC motor drivers.

4. Lighting Dimmers: Controlling the brightness of LED strips or benchtop lamps.

5. Industrial Panels: Serving as a user-interface element for adjusting machine parameters.

Pro-Tips for Circuit Integration

To maximize the life of your B100K 20mm Linear Potentiometer, follow these professional tips:

• Terminal Wiring: In a standard setup, Pin 1 is Ground, Pin 2 is the Wiper (Output), and Pin 3 is the Input Voltage.

• Knob Compatibility: The 20mm knurled shaft is designed for 6mm inner-diameter “star” knobs.

• Soldering: Use a clean iron and avoid heating the lugs for more than 3 seconds to prevent the internal plastic base from melting.

• Nut and Washer: Always use the included nut and washer to secure the potentiometer firmly to the chassis to prevent it from spinning during use.

Durability and Reliability

The B100K 20mm Linear Potentiometer is engineered for long-term mechanical durability. With a rotational life of over 15,000 cycles, it is built to handle frequent adjustments in both consumer and industrial environments. The metal housing provides a degree of shielding against EMI, while the robust shaft design prevents bending under normal pressure. By choosing this potentiometer, you ensure that your device’s interface remains responsive and reliable for years of service.

Why Buy from BuyCircuitParts?

As a specialized seller, we know that the “feel” of a control knob defines the quality of a product. At BuyCircuitParts, our B100K 20mm Linear Potentiometer inventory is sourced for its mechanical smoothness and electrical accuracy. We provide components with well-defined threads and high-quality solder lugs. Our fast shipping and focus on technical details help you build professional-grade enclosures and keep your project “on track.”

📐 Dimensions (Approx):
Length: 7 mm × Width: 7 mm × Height: 5 mm (excluding shaft)
Shaft Length: 20 mm
Shaft Diameter: 6 mm (knurled type)

🧊 Note:
Product colour and markings may vary slightly based on manufacturer and batch. Functionality is guaranteed. (Refer to the product image for illustration only. For precise specifications, consult the datasheet.) For more in-depth information on the working principle, construction materials, and mathematical laws of variable resistors, you can visit the Potentiometer Wikipedia Page.

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