H818K7DCA Allicdata Electronics
Allicdata Part #:

H818K7DCA-ND

Manufacturer Part#:

H818K7DCA

Price: $ 0.26
Product Category:

Resistors

Manufacturer: TE Connectivity Passive Product
Short Description: RES 18.7K OHM 1/4W 0.5% AXIAL
More Detail: 18.7 kOhms ±0.5% 0.25W, 1/4W Through Hole Resistor...
DataSheet: H818K7DCA datasheetH818K7DCA Datasheet/PDF
Quantity: 1000
250 +: $ 0.23546
Stock 1000Can Ship Immediately
$ 0.26
Specifications
Series: Holco, Holsworthy
Packaging: Bulk 
Part Status: Active
Resistance: 18.7 kOhms
Tolerance: ±0.5%
Power (Watts): 0.25W, 1/4W
Composition: Metal Film
Features: Pulse Withstanding
Temperature Coefficient: ±50ppm/°C
Operating Temperature: -55°C ~ 155°C
Package / Case: Axial
Supplier Device Package: Axial
Size / Dimension: 0.098" Dia x 0.283" L (2.50mm x 7.20mm)
Height - Seated (Max): --
Number of Terminations: 2
Failure Rate: --
Description

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Through Hole Resistors provide an effective way of dissipating unwanted power in electrical circuits. One type of Through Hole Resistor is the H818K7DCA. This Through Hole Resistor features eight segments of 0.25W, seven resistances and a fixed tolerance of 5%.

In terms of application fields, the H818K7DCA is most commonly used for controlling current in power amplifiers, voltage regulators, electrical power supplies, circuit crossovers, transistors, capacitors and inductors. It is mainly applied in low voltage circuits and is used to reduce the voltage in the circuit. It can also be used in AC or DC circuits as a voltage divider and can also be applied in controlling electrical signals.

The H818K7DCA Through Hole Resistor works in similar ways to other resistors, albeit with a few small variations due to its design. Firstly, when installing the resistor, it should be done in accordance with the instructions provided to ensure correct operation. Once the resistor is in place, it serves to reduce the voltage in the circuit. This is done by taking some of the energy it receives and converting it into heat, thus reducing the voltage. Its tolerance of 5% means that the actual resistance of the resistor can vary slightly from the desired resistance.

Next, when the current traverses the resistor, a voltage drop is created which is proportional to the resistance. Thus, the higher the delta of resistances (the difference between the maximum and minimum resistances), the greater the voltage drop will be. This is where the seven resistances of the H818K7DCA come into play as the resistor can provide a range of resistances when needed.

The H818K7DCA Through Hole Resistor is also designed to have a maximum power rating of 0.25W. This means that the resistor is rated to handle power up to 0.25 Watts. If the applied power exceeds this rating then the resistor will overheat and potentially fail. For this reason, the power rating must be considered when designing the circuit.

Lastly, the resistor can offer high accuracy and reliability, due to its five percent tolerance. This is achieved by designing the resistor with a combination of eight segments of 0.25W and seven different resistances. The segments increase the accuracy of the resistor, while the different resistances provide flexibility and help to reduce the amount of voltage in the circuit.

All in all, the H818K7DCA Through Hole Resistor is a reliable and accurate device, capable of handling power up to 0.25W. Its combination of eight segments of 0.25W, seven resistances and a 5% tolerance is ideal for controlling current and voltage in power amplifiers, voltage regulators, electrical power supplies, circuit crossovers, transistors, capacitors and inductors.

The specific data is subject to PDF, and the above content is for reference

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