H421RBCA

Series:	Holco, Holsworthy
Packaging:	Bulk
Part Status:	Active
Resistance:	21 Ohms
Tolerance:	±0.1%
Power (Watts):	0.5W, 1/2W
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:	0.146" Dia x 0.394" L (3.70mm x 10.00mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors are all-purpose components that are used for many different applications. One of the most commonly used resistors is the H421RBCA. This series of Through Hole Resistors comes in a variety of power ratings, offering an effective solution to any power and temperature requirements.

The H421RBCA is a compact component that provides excellent performance and stability over a wide range of temperatures and voltages. It features a reinforced dielectric that offers reliable operation even at high temperatures. This resistors is also equipped with an epoxy-encapsulated body, providing superior protection against dust, steam, and moisture. In addition, its compact design makes it an ideal choice for applications in small spaces.

The H421RBCA is generally used in DC/AC power switching, digital signal conditioning, and voltage or current regulation circuits. Its operating voltage range is from 6V to 350V, with a power rating of 1/8 to 1 watt. It is constructed with a nickel barrier layer to offer excellent solderability and flat response characteristics. The series offers high stability and reliability, with a low temperature coefficient of temperature of 100ppm/°C maximum.

When it comes to its working principle, the H421RBCA utilizes the Wheatstone bridge principle. This principle is a voltage divider circuit that is made up of several components that are connected in series. The voltage is divided between the different components of the circuit and the values of each component can be adjusted to reduce the output voltage or increase the current flow. The H421RBCA utilizes this principle to provide low impedance and an accurate constant temperature coefficient of resistance.

In addition to its useful applications, the H421RBCA also has a host of safety features. It offers reverse polarity protection, an over-voltage protection, and current limiting. This ensures that the device is protected from accidental misconnections and voltage surges. The series also features a short-circuit-proof design, helping to ensure that the unit is not damaged by potential short-circuiting. This helps to increase the lifespan of the device.

In summary, the H421RBCA is an excellent choice for a wide variety of Through Hole Resistors applications. It has a wide range of operating voltages and powers, allowing it to be used in many different types of circuits and systems. Its accurate temperature coefficient of resistance and flat response characteristics make it an ideal choice for a variety of applications. Finally, its reverse polarity protection, over-voltage protection, and short-circuit-proof design make it an incredibly safe and reliable resistor solution.

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