3500S-2-203 BOURNS Precision Rotary Potentiometer Terminal

Review BOURNS Precision Rotary Potentiometer 20k Ohm Terminal Blue

The Bourns 3500S-2-203 is a high-precision rotary potentiometer with a terminal configuration of 20k ohms. This potentiometer is designed for applications that require a reliable and accurate voltage division. It features a linear taper that ensures consistent resistance values across the entire rotation range.

This 1/4-20 threaded component is constructed with a heavy-duty, porcelain base, which provides excellent thermal stability and ensures precise positioning of the wiper. The sintered carbon resistive element delivers a low electrical noise and a high degree of linearity, making it ideal for use in sensitive control systems and measurement applications.

The 3500S-2-203 has a rotary shaft diameter of 0.315 inches (8.00 mm) and a total length of 1.34 inches (34.0 mm). Its operating temperature range is from -20 C to 70 C, and it can handle a maximum power dissipation of 1 watt. The potentiometer is RoHS compliant and comes with a protective rubber boot to prevent damage and ensure a secure fit.

The Bourns 3500S-2-203 is suitable for various industries such as industrial automation, test and measurement, medical equipment, and military applications. Its precision design and robust construction make it a reliable choice for critical control and sensing functions. The potentiometer is easy to install and can be integrated into systems using the provided mounting hardware.

Overall, the Bourns 3500S-2-203 is a high-performance precision rotary potentiometer that delivers consistent and accurate resistance values, making it an excellent choice for applications that require tight voltage control and high levels of precision. Its durable design and broad temperature operating range make it a versatile component for a wide range of industries and applications.

The Bourns 3500S-2-203 precision rotary potentiometer is a 20k ohm variable resistor commonly used in various electronic applications, particularly in volume control circuits and calibration systems. Here are the pros and cons of buying this potentiometer:

1. High Precision: With a tolerance of 0.02%, this potentiometer offers high accuracy and precision, making it suitable for critical applications where precise resistance adjustment is necessary.

2. Stable Resistance: The potentiometer has a low TCR (Temperature Coefficient of Resistance) of 25 ppm/ C, ensuring stable resistance over a wide temperature range.

3. Durable Construction: The Bourns 3500S-2-203 features a robust construction, including a stainless steel shaft and a sintered carbon resistive element, ensuring long-term reliability and performance.

4. Easy to Use: This precision potentiometer comes with a convenient 3-terminal design, making it simple to integrate into various electronic circuits.

1. Higher Cost: Compared to standard rotary potentiometers, the Bourns 3500S-2-203 is more expensive due to its higher precision and durability.

2. Limited Rotation: The potentiometer has a limited rotation angle of 240 degrees, which might not be suitable for applications requiring a full 360-degree rotation.

3. Sensitive to Vibration: Due to its high precision, the potentiometer can be sensitive to vibrations and mechanical shock, which might affect its performance.

In conclusion, the Bourns 3500S-2-203 precision rotary potentiometer is an excellent choice for applications that require high precision, stability, and durability, such as calibration systems, medical equipment, and audio systems. Its advantages, including high accuracy, stable resistance, and robust construction, outweigh the cons, such as the higher cost and limited rotation angle. If the application necessitates these features, the Bourns 3500S-2-203 is a recommended choice. However, if standard rotary potentiometers with a full rotation angle and lower precision are sufficient for the application, then a less expensive option might be more suitable.

Details:

Bourns 3500S-2-203 precision rotary potentiometer 20k ohm, linear 0.2% with 3% tolerance, blue housing, and three solder terminals. Durable construction, ideal for vintage or specialty audio and electronics repairs. Used for fine resistance adjustment in electronic circuits, this component shows minor surface wear but appears fully functional. Recognized for high reliability in measurement or control equipment.

Note original Bourns branding and legible technical specifications as shown in photos.

specifications passivecompos:

• brand: Bourns
• mpn: 3500s-2-203
• resistance rating: 20 K
• type: Single Turn Potentiometer
• termination style: Lug
• mounting style: Panel Mount
• country of origin: Afghanistan
• unit type: Unit

payments passivecompos:

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• transit: 4-9 days
• service: usps ground advantage
• class: standard
• type: calculated
• carrier: usps

returns passivecompos:

• policy: no returns

offer passivecompos:

• started: april 18, 2026
• prices: $12.00–$41.99
• item condition:
  • New – Open box
  • New
  • Used
• in stock #: 4
• best offers: true
• sold #: 11
• availability: in stock
• options: ship-to-home

seller passivecompos:

• city: sacramento, california
• # reviews: 644
• rating: 100.0%

general passivecompos:

• category: Business & Industrial > Passive Components > Variable Resistors > Potentiometers