Bourns Inc. 3266X-1-202LF Trimmer Potentiometer: The Ultimate Precision Solution for Circuit Tuning

Engineers and designers seeking unparalleled accuracy in circuit adjustment need look no further than the Bourns 3266X-1-202LF trimmer potentiometer. This professional-grade component combines 12-turn precision with military-grade cermet material to deliver stable, reliable performance in the most demanding applications.

In-Depth Technical Specifications

Precision Resistance Characteristics

The 3266X-1-202LF offers a 2 k resistance range with 10% tolerance, providing engineers with exceptional control over circuit parameters. The 100 ppm/ C temperature coefficient ensures minimal resistance drift across operating temperatures from -55 C to +125 C.

Mechanical Design Features

• 12-turn adjustment for ultra-fine tuning resolution
• Side-mounted adjustment screw for easy access in crowded PCBs
• 6.35mm 4.32mm compact footprint saves board space
• Through-hole PC pin mounting for secure mechanical attachment

Advanced Material Science

Bourns utilizes cermet (ceramic-metal composite) resistive elements that outperform conventional materials:

Material	Advantage
Cermet	Superior temperature stability, lower noise, longer life
Carbon	Higher noise, greater temperature sensitivity
Wirewound	Larger size, limited resolution

Industry-Leading Applications

Audio Engineering Systems

Professional audio equipment benefits from the 3266X-1-202LF's:
- Channel balance adjustment in mixing consoles
- Precision gain staging in microphone preamps
- Tone control calibration in high-end amplifiers

Industrial Automation

Manufacturing systems utilize this trimmer for:
- Motor speed calibration
- Sensor threshold adjustment
- Process control tuning

Medical Device Integration

Critical healthcare equipment relies on its:
- Patient monitor calibration
- Therapeutic device tuning
- Diagnostic equipment adjustment

Competitive Advantages

Performance Comparison

When benchmarked against similar trimmers, the 3266X-1-202LF demonstrates:

• 30% better temperature stability than carbon composition trimmers
• 50% longer rotational life (15,000 cycles minimum)
• Lower insertion loss in RF applications

Reliability Testing

Bourns subjects the 3266X series to rigorous qualification:
- 1,000-hour humidity testing (85 C/85% RH)
- 5,000-cycle endurance testing
- MIL-STD-202 vibration/shock compliance

Design Integration Guide

PCB Layout Recommendations

1. Maintain 3mm clearance around adjustment screw
2. Use 0.8mm minimum pad diameter for PC pins
3. Include test points for in-circuit verification

Environmental Considerations

For harsh environments:
- Apply conformal coating over adjustment area
- Use locking compound for vibration resistance
- Specify anti-rotation mounting clips

Purchasing Information

The active-status 3266X-1-202LF is available through:
- Authorized Bourns distributors worldwide
- Direct factory orders (MOQ 1,000 pieces)
- Sample quantities for qualification

Conclusion

The Bourns 3266X-1-202LF represents the gold standard in trimmer potentiometers, offering design engineers:
1. Military-grade reliability for critical systems
2. Laboratory-level precision in a production component
3. Future-proof performance for next-generation designs

For technical datasheets, application notes, or design support, contact Bourns' global engineering team today.