Trimmer Potentiometer 10KΩ Multi-Turn 3296 — 20-Turn Precision Cermet, Top-Adjust, 5-Pack

Trimmer Potentiometer — 10KΩ Multi-Turn 3296, 20-Turn Precision (5-Pack)

When a single-turn trimmer isn’t precise enough, the 3296 multi-turn trimmer potentiometer is the professional solution. This 10KΩ cermet trimmer spreads its full resistance range across ~20 turns of screwdriver adjustment, giving you 20× finer resolution than a single-turn trimmer — the difference between setting a reference voltage to within ±500mV versus ±25mV. Once set, the multi-turn mechanism holds its position securely, resisting vibration and accidental movement that would shift a single-turn trimmer off calibration.

The 3296 is the industry-standard footprint for precision trimmers — used in test equipment, industrial controllers, medical instruments, and professional audio gear worldwide. The cermet resistive element maintains calibration across temperature extremes (−40°C to +85°C) and humidity, making it suitable for both bench prototyping and permanent installation.

Key Specifications

Resistance	10KΩ (10,000Ω)
Tolerance	±10%
Power Rating	0.5W
Turns	~20 turns (multi-turn)
Adjustment	Top-mounted screwdriver slot
Resistive Element	Cermet (stable over temperature and humidity)
Min Resistance (wiper)	<1Ω
Footprint	3296 type — 10×10×4.5mm, 3 radial leads
Wiper Pin	Pin 2 (center pin)
Compliance	RoHS compliant

Precision Comparison: Multi-Turn vs Single-Turn

	Single-Turn	Multi-Turn 3296 (this)
Rotation for full range	~270° (1 turn)	~7,200° (20 turns)
Resolution per degree	~0.37% of full range	~0.014% of full range
Vibration resistance	Low	High (self-locking mechanism)
Best for	Coarse, fast adjustment	Precision calibration, stable settings

Typical Applications

• Precision reference voltage — set exact Vref for ADC (ADS1115, MCP3208), DAC, and comparator circuits to millivolt accuracy
• Op-amp offset null — LM741, TL071, OPA2134: eliminate DC offset in audio and instrumentation amplifiers
• Stepper motor driver current limit — A4988, DRV8825, TMC2208 Vref adjustment for precise motor current setting
• Sensor span and zero calibration — pressure sensors, load cells, thermocouples, pH probes: set zero-point and full-scale output
• PID controller gain tuning — proportional, integral, and derivative gain adjustment in analog PID circuits
• Oscillator frequency trimming — RC and LC oscillator fine-tuning for frequency accuracy
• Power supply output voltage — fine-adjust output voltage in adjustable regulators (LM317, LM338)
• Audio amplifier bias — quiescent current setting in Class AB amplifier output stages

Global Use Cases

The 3296 multi-turn trimmer is used globally in industrial automation (PLC analog output calibration), laboratory instruments (oscilloscope vertical gain trim), medical devices (sensor signal conditioning), and professional audio equipment (channel balance and EQ trim). Its standardized footprint means it is a direct replacement for Bourns 3296W, Vishay T93, and equivalent trimmers from any manufacturer.

Package Contents

• 5 × Trimmer Potentiometer 10KΩ Multi-Turn 3296 (top-adjust, cermet, ~20 turns)

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