Panel Mount Potentiometers: the future of technology

2025-03-25

PO TC33X-2 is a series of precision surface-mount (SMD) potentiometers manufactured by Bourns. They are designed for use in linear and switching power supplies, where high-reliability components with compact dimensions are required.

Key Features:

  1. Compact dimensions3.6 x 3.8 mm, making them very small and suitable for applications where space is limited. Their size allows for easy installation in small electronic circuits and devices.
  2. Surface-mount technology (SMD) – They are designed for surface mounting, making them easy to place on printed circuit boards (PCBs) using automated assembly techniques. Surface mounting also ensures greater connection reliability.
  3. Precision adjustmentAdjustment type: They allow for precise tuning, meaning they can be used to accurately set parameters such as voltage or current in various electronic applications.
  4. High reliability – They are developed with reliability in mind, making them an ideal choice for applications where stability and component durability are crucial (e.g., power supplies, audio systems, or measurement devices).
  5. Tolerance – They have a 25% tolerance, meaning their resistance value can vary by ±25% from the nominal value. This is acceptable in many standard applications where full precision is not required.
  6. Longevity and wear resistance – These potentiometers are made from wear-resistant materials and have a long lifespan, ensuring durability and the ability to function for many years without performance degradation.
  7. Vibration and shock resistance – Thanks to their solid construction, they offer resistance to vibrations and shocks, making them suitable for use in devices exposed to harsh environmental conditions.

Applications:

  • Switching and linear power supplies – Due to their compact size and precise adjustment capability, TC33X-2 potentiometers are ideal for fine-tuning parameters in power supplies, including voltage and current regulation.
  • Audio equipment – Used in audio devices such as amplifiers and mixers, these potentiometers enable precise volume, tone, balance, and other parameter adjustments.
  • Measurement instruments – Found in oscilloscopes, multimeters, and other precision instruments, they serve functions like calibration, gain control, and measurement range adjustment.
  • Automation and control systems – Used in robotics, industrial automation, and other complex electronic control systems.
  • Telecommunications – In communication systems like transmitters and receivers, they help fine-tune signal levels and other critical settings.
  • Automotive applications – Integrated into vehicle electrical systems, where precise electrical parameter control is needed.
  • Security and alarm systems – Used in alarm systems and sensor-based security devices, where they assist in setting sensor sensitivity.

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SYMBOL DESCRIPTION

TC33X-2-102E

TC33X-2-102E Bourns Potencjometr

Single turn cermet trimmer; 1kR; turn: 270°; SMD; 3,6x3,8mm, power: 0,15W; tolerance 25%; 250ppm/°C; operating temperature: -40°C÷100°C

TC33X-2-103E

TC33X-2-103E Bourns Potencjometr

Single turn cermet trimmer; 10kR; turn: 270°; SMD; 3,6x3,8mm, power: 0,15W; tolerance 25%; 250ppm/°C; operating temperature: -40°C÷100°C

TC33X-2-104E

TC33X-2-104E Bourns Potencjometr

Single turn cermet trimmer; 100kR; turn: 270°; SMD; 3,6x3,8mm, power: 0,15W; tolerance 25%; 250ppm/°C; operating temperature: -40°C÷100°C

TC33X-2-105E

TC33X-2-105E Bourns Potencjometr

Single turn cermet trimmer; 1MR; turn: 270°; SMD; 3,6x3,8mm, power: 0,15W; tolerance 25%; 250ppm/°C; operating temperature: -40°C÷100°C

TC33X-2-203E

TC33X-2-203E Bourns Potencjometr

Single turn cermet trimmer; 20kR; turn: 270°; SMD; 3,6x3,8mm, power: 0,15W; tolerance 25%; 250ppm/°C; operating temperature: -40°C÷100°C

TC33X-2-502E

TC33X-2-502E Bourns Potencjometr

Single turn cermet trimmer; 5kR; turn: 270°; SMD; 3,6x3,8mm, power: 0,15W; tolerance 25%; 250ppm/°C; operating temperature: -40°C÷100°C

TC33X-2-503E

TC33X-2-503E Bourns Potencjometr

Single turn cermet trimmer; 50kR; turn: 270°; SMD; 3,6x3,8mm, power: 0,15W; tolerance 25%; 250ppm/°C; operating temperature: -40°C÷100°C

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