WW3AJT120R

Series:	WW
Packaging:	Tape & Reel (TR)
Part Status:	Active
Resistance:	120 Ohms
Tolerance:	±5%
Power (Watts):	3W
Composition:	Wirewound
Features:	Moisture Resistant
Temperature Coefficient:	±20ppm/°C
Operating Temperature:	-55°C ~ 350°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.187" Dia x 0.560" L (4.75mm x 14.22mm)
Height - Seated (Max):	--
Number of Terminations:	2
Failure Rate:	--

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WW3AJT120R is an electronic component, originally developed in the 1960s, which uses cross-wire or "wirewound" resistors as its active component. The "WW3" designation stands for "wirewound three-wire," referring to the three leads on the component. These three leads are typically used to connect a voltage source, a ground line, and a ground-return line. The "120R" designates the resistance value, which is 120 ohms.WW3AJT120R is categorized as a through hole resistor in the field of electronics. Through hole resistors are among the most common and oldest type of resistors available. This type of resistor is used in circuits such as power supplies, audio systems, and other electronics. A through-hole resistor is composed of semi-conductive material that is carefully wound into a cylindrical body or canister. The canister is then placed onto a circuit board with a pin-and-socket system, providing electrical contact between the resistor and the circuit board. The working principle of a through hole resistor has to do with its ability to convert electric energy into thermal or electrical energy. When electricity passes through the resistor, some amount of the electricity will be dissipated as heat. This is because the resistor has a specific amount of resistance built into it, which causes the movement of electrons to slow down. As electrons slow down, they release some of the energy as heat. The amount of resistance the resistor has determines how much energy is released as heat. Throughout the component’s design, properties such as size, shape, wattage rating, tolerance, and working voltage need to be carefully considered. The wattage rating of a resistor determines the amount of energy is can dissipate without being damaged, and this needs to match with the voltage and current that is passing through it. The size of the resistor also plays an important role, as a resistor that is too large would take up more space on a circuit board. Finally, the working voltage determines how much voltage the resistor can handle without being damaged. The applications of through hole resistors are quite wide, ranging from audio systems and power supplies, to aircraft, industrial, and medical. Audio applications often use through hole resistors with high wattage ratings to provide power for the components. Industrial applications make use of through hole resistors to control voltage and current levels, adjust brightness levels, and provide current sensing. Finally, the medical field often has use through hole resistors to control blinks, beeps, and interval timers. In summary, the WW3AJT120R is an example of a through hole resistor, which is an electronic component used to convert electrical energy into thermal or electrical energy. The component is composed of semi-conductive material wound into a canister and placed onto a circuit board. Through hole resistors are most often used in audio systems, industrial settings, power supplies, and medical equipment. Careful consideration is needed when deciding its wattage rating, size, working voltage, tolerance, and other properties.

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