80045 BOURNS Nos Potentiometers Trimpot

Review BOURNS Nos Vintage Electronics Potentiometers Trimpot Pieces

The Bourns 80045 NOs 186363-4 Trimpots, also known as variable resistors or potentiometers, are a versatile and essential component in various electronic projects and applications. These trimpots offer a user-friendly, precision adjustment solution in a compact and robust design.

Measuring 1.2 inches (30.5mm) in length, these trimpots feature a rotary knob that provides smooth and accurate resistance adjustments. The resistance range of these components spans from 100 ohms to 1 Megohm, catering to a broad spectrum of electronic requirements. The 1/4-20 threaded shaft at the bottom of the trimpots enables secure mounting on various surfaces, allowing for easy access to resistance adjustments.

The Bourns 80045 NOs 186363-4 Trimpots are renowned for their exceptional stability and high precision, with a tolerance of 5% for the resistance value. They are also RoHS compliant, ensuring the absence of harmful substances in their construction. The components are designed to operate over a wide temperature range, from -55 C to 125 C, making them suitable for various applications in different environments.

These trimpots come with an epoxy sealed rotor, which not only protects the internal components from dust and moisture but also ensures long-term reliability. The rotary knobs are marked with clear, easy-to-read scales to facilitate accurate adjustments. Additionally, the trimpots' low TCR (temperature coefficient of resistance) of 220 ppm/ C ensures minimal resistance drift over temperature changes.

In summary, the Bourns 80045 NOs 186363-4 Trimpots are reliable and precise adjustable resistors well-suited for various electronic projects and applications. Their compact design, wide resistance range, and exceptional stability make them an essential component for engineers, hobbyists, and DIY enthusiasts.

The Bourns 80045 series trimpots (specifically model 186363-4) are commonly used in various electronic projects due to their precision and versatility. However, like any other component, they have their advantages and disadvantages.

1. High Precision: These trimpots offer a high degree of precision, making them suitable for applications where precise adjustments are required, such as calibration or fine-tuning.

2. Rugged Construction: The Bourns 80045 trimpots are known for their robust design, which can withstand harsh environments and resist shock and vibration.

3. Wide Range of Applications: These trimpots can be used in a wide range of applications, from low-voltage circuits to high-power applications.

4. Linear and Logarithmic: They are available in both linear and logarithmic versions, allowing users to choose the one that best suits their application.

1. Cost: Compared to other types of potentiometers, trimpots like the Bourns 80045 series can be more expensive.

2. Manual Adjustment: Trimpots require manual adjustment, which can be time-consuming and may not be practical for applications where frequent adjustments are required.

3. Limited Resistance Range: The resistance range of these trimpots is limited, so they may not be suitable for applications where a very high or very low resistance is required.

The Bourns 80045 series trimpots offer high precision, rugged construction, and a wide range of applications. However, they can be more expensive than other types of potentiometers and require manual adjustment, which can be time-consuming. Additionally, they have a limited resistance range.

If you require high precision adjustments in a rugged environment and are willing to pay a premium, the Bourns 80045 series trimpots are an excellent choice. However, if cost is a concern or if you require a wider resistance range or automated adjustment, you may want to consider other types of potentiometers or trimpots with different specifications.

Details:

Actual items shown. Please see photos for more details. These are from a long time collector who used and saved thousands of components during his career. One lot of 3 nos Bourns trimmers, new old stock.

Adjustable, unknown specs.

specifications passivecompos:

• brand: Bourns
• mpn: 80045

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• in stock #: 1
• price: $10.00
• item condition: New
• started: october 31, 2025
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• category: Business & Industrial > Passive Components > Variable Resistors > Potentiometers

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