3318K-1-105 Potentiometers, Variable Resistors

Series:	Trimpot® 3318 - Open Frame
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	1 MOhms
Power (Watts):	0.1W, 1/10W
Tolerance:	±30%
Temperature Coefficient:	±1000ppm/°C
Number of Turns:	1
Adjustment Type:	Side Adjustment
Resistive Material:	Carbon
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Square - 0.252" x 0.264" Face x 0.315" H (6.40mm x 6.70mm x 8.00mm)

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Introduction to Trimmer Potentiometers

Trimmer Potentiometers, also commonly referred to as trim pots, are adjustable resistors that are often used in relatively small electronic circuits for tuning and calibration purposes. For example, these components may be used to set the voltage supplied to a motor, adjust the sensitivity of a switch, or create custom or dynamic circuit gain.Trimmer Potentiometers are similar in functionality to standard potentiometers, however they provide a much greater degree of adjustment. This makes them an invaluable tool in the modern electronic circuit. The key difference is that, usually, they are designed to be adjusted by hand, which allows for much greater control over the central setting.

3318K-1-105 Application Field and Working Principle

The 3318K-1-105 is a single-turn metal film trimmer potentiometer manufactured by Precision Electronics, Inc. It is an adjustable passive device used to reduce or alter the resistance of a circuit and is often used to adjust voltage levels, gains, and frequencies. It is the perfect choice for prototyping and testing as it is easily programmed by hand.The 3318K-1-105 features a single 10-kΩ resistance range and a body width of just 1.45mm, making it ideal for use in tight spaces. It is also designed to be durable, making it suitable for use in commercial and industrial installation conditions. Furthermore, it has an insensitivity to shock and vibration, making it well-suited for environments that require greater reliability.When operating the 3318K-1-105, a voltage is applied to its three connection points. This voltage creates a magnetic field which causes a wiper arm to move along the resistance element. This movement changes the resistance, thereby affecting the voltage or current across the device. The wiper arm is adjustable and can be set to any position to provide the desired effect on the resistance.

Conclusion

Trimmer Potentiometers are an incredibly useful tool for those working in various areas of electronics, offering a high degree of flexibility and control over voltage and current. The 3318K-1-105 is an excellent example of a single-turn metal film trimmer potentiometer designed to reduce or alter the resistance of a circuit. It is ideal for use in tight spaces and is also designed to be durable and reliable even in adverse conditions.

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