
| Brand | BOURNS |
|---|---|
| Manufacturer Part Number | 3299X-3299W |
| Mounting Style | PCB MOUNT |
| Type | TRIMMER POTENTIOMETER |
| Termination Style | PIN |
The Bourns 3299 series potentiometer is a high-performance, precision adjustment component, available in various configurations to suit different application requirements. This potentiometer comes in both linear and logarithmic taper versions, with resistive elements labeled as 3299x for linear taper and 3299w for logarithmic taper.
The 3299x model, specifically the 3299x-1-203 variant, is a three-terminal, linear taper potentiometer. It features a 1-inch (25.4mm) length, with a 0.25-inch (6.4mm) diameter shaft and a 0.375-inch (9.525mm) overall height. The resistance range for this model is 10 ohms to 203 ohms. The 1:10 resistance ratio allows for precise adjustments in applications that require fine control over electrical parameters.
Another variant in the 3299x series is the 3299x-1-103 potentiometer. This model is also a three-terminal, linear taper potentiometer, but it has a shorter length of 0.62 inches (15.7mm) and a smaller diameter shaft of 0.187 inches (4.75mm). The resistance range for this model is 10 ohms to 103 ohms, providing a 1:10.3 resistance ratio.
Moving on to the logarithmic taper models, the 3299w-1-501 and 3299w-1-502 variants are similar in size and resistance range. They both have a 1-inch (25.4mm) length, a 0.25-inch (6.4mm) diameter shaft, and an overall height of 0.375 inches (9.525mm). The resistance range for both models is 1 ohm to 501 ohms, with a 1:501 resistance ratio. This non-linear taper design is ideal for applications where the control voltage is logarithmically related to the output current or power.
Lastly, the 3299w-1-203 potentiometer is a logarithmic taper model with a resistance range of 1 ohm to 203 ohms and a 1:203 resistance ratio. Its dimensions are the same as the other models in the series, with a 1-inch (25.4mm) length, a 0.25-inch (6.4mm) diameter shaft, and an overall height of 0.375 inches (9.525mm). This potentiometer is suitable for applications where a non-linear taper response is necessary for accurate control of electrical parameters.
All the potentiometers in the Bourns 3299 series are RoHS compliant and feature a Teflon insulation system for high electrical insulation and excellent thermal stability. The rotary shaft is made of brass, ensuring durability and resistance to corrosion. The wiper material is silver-plated nickel, providing excellent electrical conductivity and long wear life. These potentiometers are suitable for various applications, including audio equipment, power supplies, test equipment, and instrumentation.
Bourns 3299x and 3299w series potentiometers are linear voltage dividers widely used in various applications due to their high precision and stability. In this analysis, we will discuss the advantages, disadvantages, and provide recommendations based on the technical specifications and customer reviews.
Pros:1. High Precision: Bourns 3299x and 3299w potentiometers offer excellent precision, with some models having a tolerance as low as /-0.02%.
2. Stability: These potentiometers provide excellent stability, making them suitable for applications requiring consistent voltage division.
3. Wide Resistance Range: The 3299x and 3299w series come in various resistance values, ranging from 103 to 203K , catering to a diverse range of applications.
4. Temperature Stability: These potentiometers have good temperature stability, maintaining their resistance value across a wide temperature range.
5. Low TCR: The low Temperature Coefficient of Resistance (TCR) ensures minimal changes in resistance with temperature, leading to improved accuracy and stability.
6. RoHS Compliant: The Bourns 3299x and 3299w potentiometers are RoHS compliant, making them environmentally friendly.
Cons:1. Limited Power Handling: The 3299x and 3299w series potentiometers have a relatively low power handling capacity, with a maximum power rating of 0.25W.
2. Size: These potentiometers are larger than some other options in the market, which may limit their use in space-constrained applications.
3. Cost: Bourns 3299x and 3299w potentiometers are more expensive than some alternatives due to their high precision and stability.
Recommendations:Bourns 3299x and 3299w potentiometers are ideal for applications requiring high precision and stability, such as laboratory equipment, audio applications, and industrial control systems. However, they may not be the best choice for applications with high power requirements or space constraints. If cost is a concern, alternatives with lower precision and stability may be considered. It's essential to evaluate the specific requirements of your application and choose the potentiometer that best fits your needs.
Extra charges will apply, location shelf 102 under amateur item # 1263.
