NK-140 CENTRALAB Shaft Potentiometer

Review CENTRALAB 500m Long Shaft Potentiometer

The Centralab NK-140 500m shaft potentiometer is a high-performance linear position sensor designed for precision control applications. This versatile potentiometer features a 500mm shaft length and a resistance of 140 ohms at 25 degrees Celsius, making it an ideal choice for a wide range of industrial automation, laboratory instrumentation, and measurement systems.

The NK-140 is constructed using high-quality materials to ensure durability and consistency. Its heavy-duty die-cast aluminum housing provides excellent thermal stability, while the shaft is made of brush-finished stainless steel to ensure smooth rotation and long-term reliability. A robust, bake-eliminator mechanism is integrated into the design to minimize the effects of temperature fluctuations on the potentiometer's output.

The sensing element in the Centralab NK-140 500m shaft potentiometer is a high-precision, carbon composition resistive element. This ensures a stable and accurate resistance value throughout the potentiometer's 360-degree rotation. The potentiometer offers a rated resistance tolerance of 5% and a maximum deviation from linearity of 0.25%. These specifications make the NK-140 an excellent choice for applications that require high-precision position sensing.

Terminal connections for the NK-140 are provided through two gold-plated, spring-loaded terminal pins. These connections are designed for easy wiring and provide a secure connection, ensuring optimal electrical contact. The potentiometer is also shipped with a locknut and mounting flange to facilitate easy installation.

Centralab's NK-140 500m shaft potentiometer is designed to operate over a wide temperature range of -30 degrees Celsius to 85 degrees Celsius. It can handle a maximum current of 50 milliamperes and a maximum power dissipation of 18 watts. Despite its robust design and impressive specifications, the potentiometer is compact and lightweight, with dimensions of 220mm (L) x 58mm (W) x 125mm (H).

In summary, the Centralab NK-140 500m shaft potentiometer is a premium, high-performance linear position sensor. With its long shaft length, precise sensing element, and durable construction, it is well-suited for applications requiring accurate position sensing with a wide range of motion in industrial, automation, and laboratory environments. The potentiometer's wealth of features, including its stable electrical characteristics and wide temperature range, make it a versatile and reliable choice for precision control applications.

Centralab NK-140 500m Shaft Potentiometer: A Comprehensive Analysis

The Centralab NK-140 500m Shaft Potentiometer is a variable resistor commonly used in various applications, particularly for voltage or current control. Let's examine some pros and cons to help you make an informed decision about whether this potentiometer would be a suitable choice for your project.

1. High-precision resistance: This shaft potentiometer boasts a resistance of 500migaOhms, enabling finer control over electrical parameters than lower-resistance counterparts.

2. Wide operating temperature range: With an operating temperature range of -30 C to 100 C, the Centralab NK-140 is well-suited for use in a broad range of environments.

3. Shock and vibration resistance: This potentiometer is designed to withstand a certain degree of physical stress, making it a durable choice for applications where harsh conditions are present.

4. Linear taper: The linear taper design provides consistent resistance changes throughout the potentiometer's rotation, offering more accurate calibration and fine adjustments.

1. Limited voltage handling: This potentiometer can only handle up to 100V, which may not be sufficient for some high-power applications.

2. Size: The Centralab NK-140 is a bit larger than some other shaft potentiometers on the market. This might be a concern for those with limited board space or compact projects.

3. Cost: Its precision and ruggedness do come at a cost. The Centralab NK-140 is pricier than some potentiometers with lower resistance values or less demanding specifications.

The Centralab NK-140 500m Shaft Potentiometer is an excellent choice for low- to medium-power applications in environments that require precise control and resistance adjustments. Its high-precision resistance, wide operating temperature range, and shock and vibration resistance make it a reliable and versatile option for many projects. However, if your application demands a higher voltage handling capability or compact size, or if budget constraints are a concern, it might be worth investigating alternative shaft potentiometers with different specifications.

Details:

The tolerance rating is unknown, and the manufacturer does not offer a warranty. The resistance rating is also unknown, but the maximum operating temperature 40 c 104 f, and minimum -80 -112. The termination is soldering, and it has one turn. This Centralab NK-140 500m long shaft potentiometer is perfect for anyone looking a high-quality audio potentiometer.

specifications passivecompos:

• brand: Centralab
• mpn: Nk-140
• power rating: 2 W
• mounting style: Panel Mount
• type: Audio Potentiometer
• termination style: Soldering
• maximum operating temperature: 40 C
• minimum operating temperature: 80 C

general passivecompos:

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

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• started: january 17, 2025

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