B100K 15mm D-Shaft Lin Potentiometer – Elcon

Description

Technical Overview of the B100K 15mm D-Shaft Potentiometer

The B100K 15mm D-Shaft Potentiometer is a specialized variable resistor designed for precision and secure manual control. Featuring a 100k Ohm resistance and a Linear (B) Taper, this model is distinct due to its D-shaped (flat) shaft. Unlike knurled shafts, the D-shaft provides a flat surface that allows set-screw knobs to grip firmly without slipping. At BuyCircuitParts, we ensure our D-shaft potentiometers are engineered for high-torque environments, keeping your control settings perfectly on track.

Key Specifications and Functional Parameters

B100K 15mm D-Shaft Potentiometer
To ensure this component fits your mechanical requirements, here are the technical specifications:

• Resistance Value: 100k Ohm (B100K).

• Taper Type: Linear (Type B).

• Shaft Length: 15mm.

• Shaft Type: D-Shaft / Flat Shaft (6mm diameter).

• Rotation Angle: 300° ± 5°.

• Power Rating: 0.125W.

• Package Type: Panel Mount with Solder Lugs.

Why Choose the B100K D-Shaft for Your Project?

The B100K 15mm D-Shaft Potentiometer is the preferred choice when using heavy or high-quality pointer knobs that require a set-screw for attachment. The linear taper provides a 1:1 relationship between rotation and resistance, which is essential for tasks like voltage regulation or frequency tuning. Because the shaft is flat on one side, it ensures that the knob’s indicator always stays aligned with the internal wiper position. At BuyCircuitParts, our B100K models are tested for mechanical stability to ensure no “play” or wobbling in the shaft.

Common Applications for the B100K D-Shaft Potentiometer

The B100K 15mm D-Shaft Potentiometer is widely used in:

1. Industrial Control Panels: Where vibration-resistant knob mounting is required.

2. Precision Laboratory Gear: For adjusting parameters that need clear visual alignment.

3. Custom Synthesizers: Ideal for DIY audio gear using high-end metal knobs.

4. Power Supply Modules: Setting current and voltage limits with high-torque controls.

5. Home Automation Units: Used in wall-mounted dimmers and climate control interfaces.

Pro-Tips for Circuit Integration

To maximize the accuracy of your B100K 15mm D-Shaft Potentiometer, follow these professional tips:

• Knob Alignment: When installing a knob, align the set-screw exactly with the flat part of the D-shaft for maximum grip.

• Mounting Clearance: Ensure the 15mm shaft length provides enough “bite” for your specific panel thickness.

• Soldering Technique: Use a 40W soldering iron and high-quality flux to ensure a solid connection on the lugs without overheating the carbon track.

• Grounding: In high-gain circuits, consider grounding the metal body of the potentiometer to reduce electromagnetic interference and stay “on track.”

Durability and Reliability

The B100K 15mm D-Shaft Potentiometer is built for extreme reliability. The flat shaft design significantly reduces the risk of mechanical failure or knob-slippage, which is common in knurled shafts under heavy use. Its internal resistive element is sealed to prevent dust ingress, ensuring a noise-free life of over 15,000 cycles. By choosing this D-shaft variant from BuyCircuitParts, you are investing in a component that maintains its calibration and structural integrity through years of operation.

Why Buy from BuyCircuitParts?

Precision mechanics are just as important as electrical specs. At BuyCircuitParts, our B100K 15mm D-Shaft Potentiometer inventory is curated for its superior shaft finish and consistent linear accuracy. We provide all necessary mounting hardware (nuts and washers) to ensure a professional installation. Our commitment to fast shipping and technical transparency helps you avoid delays and keeps your production “on track.”

📐 Dimensions (Approx):
Length: 7 mm × Width: 7 mm × Height: 5 mm (excluding shaft)
Shaft Length: 15 mm
Shaft Diameter: 6 mm (D-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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