H4P16R2DZA

Series:	Holco, Holsworthy
Packaging:	Bulk
Part Status:	Active
Resistance:	16.2 Ohms
Tolerance:	±0.5%
Power (Watts):	1W
Composition:	Metal Film
Features:	Pulse Withstanding
Temperature Coefficient:	±100ppm/°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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H4P16R2DZA Through Hole Resistors application field and working principle

Through-hole resistors are electrical components that have two lead wires that are inserted into the two holes in a printed circuit board (PCB). Through-hole resistors are characterized by their wide range of applications, their working principle, their high current carrying capacity and their noise immunity.

Applications

With through-hole resistors being easy to manufacture and cost effective, they are widely used in multiple industries. They are mostly used in circuits that require a large amount of current carrying capacity, such as radio receivers and transmitters, power amplifiers, satellite broadcasters, electrical power transmission equipment and self-powered circuits. Since through hole resistors are not vulnerable to high voltage, they are also often used in industrial equipment, medical devices and high voltage circuits.

Construction and Working Principle

A through hole resistor has two lead wires that are inserted through the two holes in a printed circuit board. The lead wires are typically made of copper, so they will transfer heat much better than if they were made of a different material. The resistance element is usually made of ceramic, sinter, or wire-wound. The resistance of a through hole resistor is determined by its geometry. The longer the resistance element is, the higher the resistance will be. The resistance element is then placed inside a glass, ceramic, or plastic tube which is then placed inside the metal casing of the resistor. The metal casing will act to protect the resistor from any external shocks and reduce the amount of noise in the circuit.

Noise Immunity

Through-hole resistors have a high noise immunity due to their construction. The metal casing acts as a shield to prevent external signals from interfering with the resistor\'s operation and the lead wires are securely soldered to the PCB which will prevent them from slipping out of the holes. As a result, through hole resistors are more reliable than other types of resistors in noisy environments.

High Current Carrying Capacity

Due to their construction, through hole resistors are capable of carrying very high currents. The resistance element is able to carry high currents without heating up because it is surrounded by the metal casing which acts as a heat sink. This makes them ideal for applications that require high power dissipation.

Conclusion

Through-hole resistors are widely used in various industries due to their wide range of applications, working principle, high current carrying capacity and noise immunity. Their construction also makes them reliable in noisy environments as well as in high power dissipation applications.

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