TC89W-1-202

Series:	Trimpot® TC89 - Open Frame
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Resistance:	2 kOhms
Power (Watts):	0.5W, 1/2W
Tolerance:	±20%
Temperature Coefficient:	±250ppm/°C
Number of Turns:	1
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Through Hole
Termination Style:	PC Pins
Size / Dimension:	Rectangular - 0.346" x 0.315" Face x 0.500" H (8.80mm x 8.00mm x 12.70mm)

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Trimmer Potentiometers

Potentiometer, commonly known as "potentiometers", are variable resistors commonly used in electronics, and are used to measure (or adjust) voltage. The TC89W-1-202 is a type of trimmer potentiometer, which is a potentiometer with an adjustable resistor built into it that has the ability to turn predetermined resistance up or down. It can also be called a rotatory trimmer, precision potentiometer, rotary adjuster, trimpot, trimmer, or tini-pot, and is usually chosen for applications that require more precise adjustment of resistance than a standard off-the-shelf potentiometer can provide.

Applications

Trimmer potentiometers are widely used in a variety of applications, including in resistive and capacitive electronics, and are especially well-suited for variable voltage control circuits, such as volume and brightness controls for audio and visual devices. They are also often used in radio equipment, security systems, auto-cruise systems, automated control systems, and other medical and industrial applications.

Design

The TC89W-1-202 trimmer potentiometer is made up of a fixed resistor, a movable resistor, a spindle and a casing, and is designed with a resistance range of 0.1 ohms to 10,000 ohms at 10% (plus or minus) tolerance. It is a through-hole trimmer assembled in a 5mm x 5mm x 6.6mm case, making it small and lightweight.It is also equipped with a 10-turn spindle adjustment, making it ideal for applications where accurate adjustment of resistance is required. The 30 degree angle of the spindle made it easier to operate and adjust the resistance. This trimmer can be used in a wide range of operating temperatures, from -55 up to 105 degrees Celsius.

Working principle

The working principle of the TC89W-1-202 trimmer potentiometer is simple and easy to understand. It is a three-terminal device, with one terminal attached to the fixed resistor (which is fixed), one terminal attached to the movable resistor (which can be adjusted), and one connected to the spindle (which is used to adjust the movable resistor).When the spindle is turned clockwise, the movable resistor moves up along the fixed resistor, which increases the resistance. Conversely, when the spindle is turned counterclockwise, the movable resistor moves down along the fixed resistor, decreasing the resistance. This creates a simple voltage-divider network that can be used to adjust the voltage in a circuit.

Conclusion

The TC89W-1-202 trimmer potentiometer is a simple and effective way of adjusting resistance in circuits. It is a small and lightweight through-hole trimmer, that can be used in a variety of applications and can stand up to a wide range of temperatures. It is equipped with a 10-turn spindle adjustment, making it highly accurate and reliable. It is perfect for applications that require precise adjustment of resistance, such as volume and brightness controls for electronic devices.

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