PWR221T-30-4002F

Series:	PWR221T-30
Packaging:	Tube
Part Status:	Active
Resistance:	40 kOhms
Tolerance:	±1%
Power (Watts):	30W
Composition:	Thick Film
Features:	Automotive AEC-Q200, Current Sense, Pulse Withstanding
Temperature Coefficient:	±100ppm/°C
Operating Temperature:	-50°C ~ 150°C
Package / Case:	TO-220-2
Supplier Device Package:	TO-220-2
Size / Dimension:	0.410" L x 0.125" W (10.41mm x 3.18mm)
Height - Seated (Max):	0.760" (19.30mm)
Number of Terminations:	2
Failure Rate:	--

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Introduction

Through-hole Resistors, sometimes referred to as leaded resistors, are an important part of any electronic circuit, providing the ability to change the current flow or the voltage levels within the circuit. This type of resistor is named after the way the resistor is placed into the circuit board (through-hole) by soldering the leads into the holes. The resistor itself can come in different shapes, sizes, and power ratings - and today we\'ll be discussing one particular resistor, the PWR221T-30-4002F.

The PWR221T-30-4002F

The PWR221T-30-4002F is a through-hole resistor used mainly for power applications. It features a power rating of 30 watts and a resistance value of 4 kilohms with 2% precision. The resistor itself is small in size - measuring only 25.4mm long and 11.2mm wide - allowing it to fit into almost any circuit design.The resistor is encased in a black plastic housing, and is fairly easy to identify by the value printed on the side of the housing. Additionally, the resistor is protected by an epoxy coating, to prevent shorting or other problems. The resistor also features two screw terminals that allow connections to the circuit board. The terminals offer an additional layer of protection, and are capable of handling higher current and voltage levels than most through-hole resistors.

Application

The PWR221T-30-4002F is a popular choice for high-power applications such as motor control, power supplies, and automotive applications. The resistor can be used as a current limiter, protecting circuits from sudden over-currents or overloads. It can also be used as a voltage regulator, helping to reduce large voltage fluctuations.Due to its small size and high-power rating, the resistor is also used in a variety of consumer electronics, such as smartphones and laptop computers. Additionally, the resistor is used in television sets, radios, and other home appliances.

Working Principle

Like all resistors, the PWR221T-30-4002F works by changing the amount of current flowing through the circuit. This is accomplished by limiting the amount of electrical energy that can pass through the resistor, thus reducing the voltage or current levels within the circuit.The resistor works by converting electrical energy into thermal energy, which is released into the surrounding air as heat. The amount of heat released depends on the size of the resistor and the amount of current flowing through it, allowing the current or voltage levels to be precisely controlled.

Conclusion

The PWR221T-30-4002F is a popular through-hole resistor that is used for a variety of applications, ranging from motor control to consumer electronics. Its small size and high power rating make it ideal for high-power applications, and its two screw terminals offer an additional layer of protection when dealing with higher current or voltage levels. The resistor works by limiting the amount of electrical energy that can pass through it, converting it into thermal energy that is slowly released as heat.

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