Multi-Turn Trimmer Potentiometer Kit — 15 Values 50Ω–2MΩ, 3296 Type, 20-Turn Precision, 15-Pack

Multi-Turn Trimmer Potentiometer Kit — 15 Values, 50Ω to 2MΩ, 3296 Type (15-Pack)

Stop hunting for individual trimmer values. This 15-value multi-turn trimmer potentiometer kit covers the complete resistance range from 50Ω to 2MΩ in a single purchase — one of each value, all in the industry-standard 3296 footprint with 20-turn precision adjustment. Whether you’re calibrating a sensor, setting a reference voltage, trimming an oscillator, or adjusting op-amp gain, this kit has the exact value you need on the bench, ready to install.

The 3296-style multi-turn trimmer is the professional’s choice for precision circuit adjustment. Where a single-turn trimmer sweeps its full resistance range in one rotation, the 3296 spreads the same range across 20 full turns — giving you 20× finer resolution and the ability to make repeatable, stable adjustments that stay put. Cermet resistive element ensures long-term stability across temperature and humidity, unlike carbon trimmers that drift over time.

Kit Contents — 15 Values (1 pc each)

50Ω	100Ω	200Ω	500Ω	1KΩ
2KΩ	5KΩ	10KΩ	20KΩ	50KΩ
100KΩ	200KΩ	500KΩ	1MΩ	2MΩ

Key Specifications (All Values)

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

Multi-Turn vs Single-Turn — Why It Matters

• Single-turn trimmer: Full resistance range in one rotation (~270°) — fast but coarse. One degree of rotation = ~0.37% of full range. Prone to accidental over-adjustment.
• Multi-turn 3296 (this kit): Full range across ~20 turns (7,200° total) — one degree of rotation = ~0.014% of full range. Ideal for precision calibration, reference voltages, and any setting that must be stable and repeatable.

Application Guide by Value Range

• 50Ω – 500Ω: Current limit adjustment in motor drivers (A4988, DRV8825), shunt-based current sense calibration, low-resistance voltage dividers for ADC reference trimming
• 1KΩ – 10KΩ: Op-amp offset null (LM741, LM358), comparator threshold (LM393), Arduino analog input voltage divider, NE555/TLC555 timing resistor, sensor zero-point calibration
• 20KΩ – 100KΩ: RC oscillator frequency trimming, active filter cutoff frequency adjustment, PID controller setpoint, audio tone control circuits
• 200KΩ – 2MΩ: High-impedance voltage dividers, JFET bias adjustment, crystal oscillator load trimming, high-value RC timing circuits, electret microphone bias

Typical Applications

• Precision reference voltage setting for ADC, DAC, and comparator circuits
• Op-amp offset null and closed-loop gain calibration
• Stepper motor driver current limit (A4988, DRV8825, TMC2208)
• Sensor span and zero calibration (pressure, temperature, load cell, pH)
• PID controller setpoint and gain adjustment
• Oscillator frequency fine-tuning (RC, LC, crystal circuits)
• Audio amplifier bias and tone control
• Power supply output voltage adjustment
• Electronics lab and workbench trimmer assortment

Who Uses This Kit

• Electronics engineers and technicians — bench calibration and prototype development across all value ranges
• Arduino and ESP32 makers — sensor calibration, motor driver current limit, analog reference trimming
• 3D printer builders — stepper driver current adjustment (A4988, DRV8825 Vref trimming)
• Audio DIY builders — amplifier bias, tone control, and level matching
• Students and educators — complete trimmer assortment for electronics lab coursework
• Field service technicians — replacement trimmers for industrial and consumer electronics repair

Package Contents

• 15 × Multi-Turn Trimmer Potentiometer, 3296 type (1 each of: 50Ω, 100Ω, 200Ω, 500Ω, 1KΩ, 2KΩ, 5KΩ, 10KΩ, 20KΩ, 50KΩ, 100KΩ, 200KΩ, 500KΩ, 1MΩ, 2MΩ)

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