25J220E

Series:	20
Packaging:	Bulk
Part Status:	Active
Resistance:	220 Ohms
Tolerance:	±5%
Power (Watts):	5W
Composition:	Wirewound
Features:	Flame Retardant Coating, Safety
Temperature Coefficient:	±30ppm/°C
Operating Temperature:	--
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.276" Dia x 1.016" L (7.00mm x 25.80mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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Through Hole Resistors are a type of resistor which feature a longer body than chip resistors. As a result, they often require a hole in the board to mount, or are used to replace an existing resistor in a circuit board in a repair or other service. The 25J220E is a Through Hole Resistor which has a variety of applications and a specific set of working principles.The 25J220E Through Hole Resistor is an axial lead resistor designed for high-power electronic applications. It features ability to dissipate 1 watt of power within a temperature range of -55 to +155 degrees Celsius. The body is constructed of ceramic with an aluminum end cap, which allows for higher heat dissipation than other resistor designs. Its axial leads are 22 mil or thicker and have an operating range from -55 to +155 degrees Celsius and a resistance range of 1 ohm to 5 megohms.The 25J220E Through Hole Resistor has a variety of applications, including high-voltage switching and other power electronics, as well as electronic instrumentation, motor control, sensing applications, and high-voltage and current feedback. In terms of its working principles, it has an operating principle similar to other axial resistors, in that it works by introducing resistance to a current flowing through the board. As is the case with other resistors, it introduces an opposing force to the current. This means that the current must overcome the opposing force in order to flow through the board, creating an increase in heat as it does so. As the heat increases, the resistance also increases, hence the need for a body constructed of materials which can adequately dissipate the heat in order to maintain the desired resistance value.The 25J220E Resistor also features an additional operating principle which is unique to axial resistors. It features an internal capacitor which is constructed in parallel with the resistor. This capacitor draws a small current which is then used to change the resistance value, greatly increasing the dynamic performance of the device. This allows for a higher switching frequency in applications which require frequent fluctuating current levels, such as SCR- or TRIAC-based AC circuits.In conclusion, the 25J220E Through Hole Resistor is a versatile device which can be used in a variety of applications. Its axial leads, high power dissipation, and unique internal capacitor make it well-suited for demanding power electronics, instrumentation, and current/voltage feedback applications. Its operating principle works by introducing an opposing force to current flowing through it in order to create an increase in its resistance value. Furthermore, its internal capacitor further allows for increased dynamic performance, allowing for higher switching frequencies in AC circuits.

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