3329H-1-154

Series:	Trimpot® 3329 - Sealed
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	150 kOhms
Power (Watts):	0.5W, 1/2W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	1
Adjustment Type:	Top Adjustment
Resistive Material:	Cermet
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Round - 0.250" Dia x 0.180" H (6.35mm x 4.57mm)

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Timmerer Potentiometers

A trimmer potentiometer, also known as a trimpot, is a small, three-terminal resistor whose resistance level can be adjusted with a miniaturized screwdriver, usually referred to as a trimmer. Trimmer potentiometers, such as the 3329H-1-154, are used in electronic devices to exercise control over output voltage or resistance level. They are perfect for applications in which frequent adjustment of a circuit’s internal resistance is required, such as when calibrating amplifiers or circuit boards.

Common Applications

Trimmer potentiometers can be used in a variety of application areas, including audio production, medical equipment, and aviation. In electronic audio production, it is often necessary to precisely adjust and calibrate resistance levels for optimum sound quality. In medical equipment, trimmer potentiometers are used to precisely measure and adjust the electrical impulses generated by a patient\'s heart, and in aviation, they are commonly used to adjust sensitivity levels in altimeters and airspeed indicators.

3329H-1-154 Specifications

The 3329H-1-154 trimmer potentiometer is a miniature through hole, three-terminal component with a resistance range of 500Ω to 5KΩ and an adjustable potentiometer. It is designed with an axial lead length of 0.2 inch (5.08 mm) with a slot width of 0.02 inch (0.5 mm). It is rated at 0.5 W, ±100 ppm/°C maximum temperature coefficient, and uses a 0.5 A inrush current. The 3329H-1-154 trimmer potentiometer is rated for voltage between 5 and 50 V and features a flat adjustable shaft (P1) with total travel of 61°.

Working Principle

The working principle of trimmer potentiometers is simple. They are used in a wide variety of applications to adjust voltage, current, or resistance to a desired level. To use a trimmer potentiometer, the user rotates the spindle to a desired position. As the spindle is rotated, the total resistance of the circuit is adjusted, thus allowing the user to precisely adjust the voltage, current, or resistance of a circuit. The main advantage of trimmer potentiometers is their small size, which makes them ideal for use in electronic devices that lack enough space for a larger, discrete analog potentiometer. Additionally, trimmer potentiometers can be used in applications that require frequent adjustments, as they are easily adjustable with a small screwdriver.

Conclusion

Trimmer potentiometers, such as the 3329H-1-154, are small, three-terminal resistors used to adjust voltage, current, or resistance of a circuit. They are commonly used in a variety of applications, such as audio production, medical equipment, and aviation, and are preferred due to their small size and precise adjustments. The working principle of a trimmer potentiometer is relatively straightforward, as the user adjusts the resistance of the circuit by rotating the spindle of the potentiometer to the desired position.

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