91AR100LF

Series:	91
Part Status:	Active
Lead Free Status / RoHS Status:	--
Resistance:	100 Ohms
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 - 0.385" x 0.375" Face x 0.200" H (9.78mm x 9.53mm x 5.08mm)

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Trimmer Potentiometers

Trimmer potentiometers are adjustable resistors used to modify and adjust the circuit setup and performance in a wide range of appliances and devices. Unlike regular potentiometers, which have static resistance values and fixed positions, trimmer potentiometers offer adjustable resistance components in trim form. This allows engineers various levels of fine-tuning and exact control over the resistances in their projects and applications. The 91AR100LF is a type of trimmer potentiometer, which finds applications and usage in different types of projects.

What is the 91AR100LF?

The 91AR100LF is a wire-wound variable resistor from Vishay/Dale, an electrical component manufacturer based in California. It is ideal for use in critical and demanding applications, and available in multiple sizes and shapes. This trimmer potentiometer is also highly durable and resistant to shock and vibration, making it suitable to use in harsh and unstable environments.

What Are the Specifications of the 91AR100LF?

The 91AR100LF is available in multiple sizes, with its resistance ranging from 0.5 Ohm to 3.0 Mohm, and a tolerance accuracy level of ± 20%. With an adjustment-style of Turn-to-Lock, it has an available power rating of 1 W, and an insulation resistance rating of 500 VDC. Its temperature coefficient measures in at approximately 200 ppm/°C, with an optimal operating temperature range of –55 to + 125°C.

91AR100LF Application Field and Working Principle

The 91AR100LF trimmer potentiometer has multiple applications in various areas, such as automotive, telecommunications, appliances, and electronics. In automotive and telecommunication applications, it can be used as an adjustable bias resistor and to adjust the amplifier gain, respectively. In appliance applications, it can be used as a voltage divider, while in electronics, it can be used as a scaling device, filter, and digital signal processor (DSP).The 91AR100LF works on the principle of adjustable resistors. The resistor element is constructed from closely tanged turns of special alloy wire and is connected to two at terminals. A third terminal is connected to a contact point that can be adjusted in position along the resistor element to control the resistance. When the contact is moved from one end of the resistor to the other, the resistance of the device changes. As the contact is moved along the resistor, the resistance is adjusted in the desired value.

Conclusion

The 91AR100LF trimmer potentiometer provides a reliable solution for reliable adjustment. This trimmer potentiometer is suitable for use in harsh and unstable environments due to its high degree of durability and resistance. It offers high precision and accuracy, which allows engineers to accurately and finely tune and adjust their circuits. With many applications in areas such as automotive, telecommunications, electronics, and appliances, it provides circuit designers with a number of solutions and options for their adjustable bias resistors and voltage dividers.

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