Potentiometer 100KΩ Single-Turn Panel Mount — 6mm Shaft, Linear Taper, with Nut & Washer

Potentiometer — 100KΩ Single-Turn, Panel Mount / PCB Mount, 6mm Shaft

A 100KΩ linear taper single-turn potentiometer with a standard 6mm knurled shaft — designed for both panel mounting through an enclosure and direct PCB soldering. Supplied with mounting nut and washer for panel installation. The 100KΩ value is the preferred choice for high-impedance circuits including JFET bias adjustment, electret microphone sensitivity, RC oscillator frequency control, and audio circuits where minimal current loading is critical.

The smooth ~300° rotation with good linearity makes this potentiometer suitable for user-facing controls in audio equipment, DIY synthesizers, and high-impedance signal conditioning circuits. The 6mm shaft accepts all standard potentiometer knobs available worldwide.

Key Specifications

Resistance	100KΩ (100,000Ω)
Taper	Linear (Type B)
Tolerance	±15% (typical measured)
Power Rating	0.5W
Turns	Single-turn (~300° rotation)
Resistive Element	Carbon film
Shaft Diameter	6mm (knurled, standard knob compatible)
Shaft Length	15mm (0.59″)
Body Width	18mm (0.71″)
Body + Shaft Length	24mm (0.95″)
Panel Mounting Hole	7mm (9/32″)
PCB Lead Spacing	5.08mm (0.2″) centers
Package	Metal body, 3 radial leads

Mounting Options

• Panel mount: Insert shaft through a 7mm (9/32″) hole in the enclosure panel. Secure with the supplied washer and 10mm nut. Solder wires to the three pins. Add any standard 6mm-shaft knob for user control.
• PCB mount: Solder directly to PCB using the 5.08mm (0.2″) lead spacing — compatible with standard 0.1″ perfboard hole spacing. Note: leads are not long enough for solderless breadboards.
• Anti-rotation tab: A locator tab on the body prevents rotation in enclosures with a matching slot. Can be snapped off with pliers if not needed.

100KΩ vs Other Values — When to Choose 100K

• 1KΩ: Low-impedance circuits — motor speed control, low-impedance audio sources
• 5KΩ: Op-amp feedback networks, audio tone controls
• 10KΩ: Most common value — Arduino analog input, comparator threshold, general-purpose voltage divider
• 100KΩ (this): High-impedance circuits — JFET gate bias, electret microphone sensitivity, RC oscillator frequency (NE555 high-frequency range), audio volume in high-impedance amplifier inputs, crystal oscillator load trimming

Typical Applications

• RC oscillator frequency control — NE555 astable mode high-frequency range (100KΩ + small capacitor)
• JFET gate bias adjustment — J201, 2N5457, MPF102 bias setting in audio preamp circuits
• Electret microphone sensitivity control — high-impedance input level adjustment
• Audio volume control for high-impedance amplifier inputs
• DIY synthesizer VCO and VCF frequency controls
• High-impedance voltage divider — minimal current draw from battery-powered circuits
• Phototransistor and LDR sensitivity adjustment
• Analog filter cutoff frequency control (high-frequency RC filters)

Package Contents

• 1 × Potentiometer 100KΩ Single-Turn (6mm shaft, linear taper, carbon film)
• 1 × Mounting nut (10mm)
• 1 × Washer

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