91ER2KLF

Series:	91
Part Status:	Active
Lead Free Status / RoHS Status:	--
Resistance:	2 kOhms
Power (Watts):	0.5W, 1/2W
Tolerance:	±20%
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:	Rectangular - 0.420" x 0.375" Face x 0.280" H (10.67mm x 9.53mm x 7.11mm)

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Trimmer Potentiometers enable accurate adjustment of electronic circuits. They are used in many applications, such as audio, data communications, robotics, automotive, and instrumentation. The 91ER2KLF is a trimmer potentiometer manufactured by Vishay Precision Group. It is a three marine alloy sealed wirewound resistor with a rated resistance of 500Ω and an absolute maximum power dissipation of 1 watt.

The 91ER2KLF trimmer potentiometer is a low-cost, fast-acting, and reliable adjustable component. It is well suited for applications requiring precise positioning or repeatability under harsh conditions. This includes medical and avionics applications. Its high-current rating makes it suitable for applications where the device will experience significant electrical stress.

The 91ER2KLF trimmer potentiometer is a three-terminal device that has a variable resistance between terminals 1 and 2. This resistance is adjusted by the rotating contact of the external adjustment control. The external adjustment control is the knob or actuator of the device. The third terminal is the common terminal which is always connected to ground potential.

The 91ER2KLF trimmer potentiometer consists of a dielectric element, a metal contact, and a conductive element. The dielectric element acts as an insulator that separates the metal contact from the conductive element. The metal contact is typically a metal or plastic wheel or knob that is connected to the external adjustment control. This contact directly touches the conductive element, which is usually a coil or spiral of resistive material. By turning the external adjustment control, the metal contact slides across the resistive material, thereby changing the resistance between terminals 1 and 2.

The 91ER2KLF trimmer potentiometer offers a variety of features and benefits. It has a low temperature coefficient of 0.2%/°C, making it ideal for temperature-sensitive applications. It also provides excellent stability and repeatability over a temperature range of-55°C to +125°C. In addition, the 91ER2KLF is lead- and RoHS- compliant and features a long operational life of 50,000 cycles. It is available in various case sizes to meet the needs of a range of different applications.

The 91ER2KLF trimmer potentiometer can be used in a wide range of applications such as video and audio circuits, motor speed controls, level sensors, automatic speed controls, and remote actuator control. It is commonly used in industrial and consumer electronic applications such as HVAC systems, digital controls, data processing, telecom systems, aerospace systems, and vehicular electronics. In addition, the 91ER2KLF is frequently used in medical, scientific, and instrumentation systems.

In summary, the 91ER2KLF trimmer potentiometer is a reliable and accurate adjustable component with a long operational life. It has a low temperature coefficient and offers excellent stability and repeatability over a wide temperature range. In addition, it is RoHS compliant and is available in a variety of case sizes. The 91ER2KLF is commonly used in industrial and consumer electronics applications, as well as medical, scientific, and instrumentation systems.

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