3303C-1-103E

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Trimmer potentiometers, such as the 3303C-1-103E, are variable electronic components that allow for the adjustment of the resistance in circuits. They are produced in many sizes, shapes, and with different resistance values. The 3303C-1-103E is a trimmer potentiometer specifically designed to be used in RF applications.

The 3303C-1-103E features a three-terminal configuration, with a spindle for adjustable resistance. A small metal shaft is mounted in the center of the device, connected to a resistive element. The resistive element is surrounded by a metal plate that is attached to a spring to keep the contact tight against the side of the resistive element. The resistive element, or track, is typically a ceramic element placed between two sheets of plastic, such as Nylon or Polyethylene. The resistance value of the device can be adjusted by turning the shaft clockwise or counterclockwise.

The 3303C-1-103E has an operating temperature range from -25 to +85 °C and can be used in a variety of RF applications. It has a 1.32 mm flatted spindle for easy adjustment. The 3303C-1-103E has a linear track resistance of 103 ± 20Ω, and an insulation characteristic of > 100MΩ at 500V. These features make it ideal for radio and television tuner circuits, precision voltage regulators, tracking filters and digital to analog converters.

Trimmer potentiometers, like the 3303C-1-103E, work by changing the resistance between two of its terminals when the spindle or wiper is moved along the track. The resistance of the potentiometer is determined by the length of the track between the two terminals. Moving the spindle towards one of the terminals will decrease the resistance, while moving it towards the other will increase it. Therefore, the resistance can be adjusted by turning the spindle, allowing for precise adjustments in the circuit.

The 3303C-1-103E is an example of a trimmer potentiometer used for RF applications. It is designed for use in radio and television tuner circuits, precision voltage regulators, tracking filters, and digital-to-analog convertors. It features high insulation and linear track resistance, and a 1.32 mm flatted spindle for easy adjustment. Its operating temperature range is -25 to +85 °C.

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