ST7EB504

Trimmer potentiometers are a type of variable resistor commonly found in electronic circuits. They are used to adjust the current and voltage levels in order to fine tune the performance of an application or device. ST7EB504 is a particular type of trimmer potentiometer that is widely used in various types of electronic designs. This article aims to explain the various application fields and the working principle of ST7EB504.

Application Field

ST7EB504 is a 3-terminal single-turn, open frame, trimmer potentiometer. It has a resistance ranging from 1Kohm to 5Kohm in 10Kohm increments. The operating temperature range is from -55°C to 125°C, and the operating voltage range is from 6V to 25V. It is ideal for miniature commercial and Military electronic applications which require resistance adjustment. It can be used in a variety of applications, such as:

• RF circuits
• Portable electronic equipment
• Measurement systems
• Data Communications equipment
• Lighting dimmers
• Set-top boxes
• Power amplifiers
• Timers

Working Principle

ST7EB504 trimmer potentiometers work on the principle of resistive divider networks. A resistive divider network is composed of two resistors connected in series. When a voltage is applied to the resistive divider network, a certain amount of current will flow through it. The resistance of each resistor can be adjusted by turning a knob on the trimmer potentiometer. This allows for fine-tuning of the current in the circuit. In ST7EB504, the resistance value is adjusted using a slotted screwdriver, which allows for precise tuning.

The ST7EB504 also features an automatic limit stop which prevents the wiper from traveling beyond the mechanical limits of the device. This feature prevents the potentiometer from being damaged if the adjustment screw is turned too far. The potentiometer also features a dust protection mechanism which prevents dust and dirt from entering the interior of the device.

Conclusion

In conclusion, ST7EB504 is a type of trimmer potentiometer that is widely used in various types of electronic designs. It is ideal for miniature commercial and Military electronic applications which require resistance adjustment. It features an automatic limit stop which prevents the wiper from traveling beyond the mechanical limits of the device, and a dust protection mechanism which prevents dust and dirt from entering the interior of the device. It operates on the principle of resistive divider networks, by adjusting the resistance of two resistors connected in series.