SQP20AJB-3R9

Series:	SQP
Packaging:	Bulk
Part Status:	Active
Resistance:	3.9 Ohms
Tolerance:	±5%
Power (Watts):	20W
Composition:	Wirewound
Features:	Anti-Arc, Flame Proof, Moisture Resistant, Safety
Temperature Coefficient:	±300ppm/°C
Operating Temperature:	-55°C ~ 155°C
Package / Case:	Axial
Supplier Device Package:	Axial
Size / Dimension:	0.492" Square x 2.362" L (12.50mm x 60.00mm)
Height - Seated (Max):	--
Number of Terminations:	2

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Through Hole Resistors

Through hole resistors, also referred to as through-hole resistors, are cylindrical components with a bare metal core or rod that carries electrical current and performs resistance functions. The components generally feature two contact points and one or more uniform turns of solid resistive material. They serve as an important part of any larger electrical system and can be found in a wide variety of everyday appliances, such as televisions, stereo systems, and computers.One of the more common types of through hole resistors is the SQP20AJB-3R9. This resistor is an integral part of electronic circuitry designs, where it helps to regulate power distribution and reduce electrical noise. Unlike other types of resistors, the SQP20AJB-3R9 has a relatively low resistance value, making it a great choice for applications that require low-power control.This resistor is typically available in 4k and 25k resistance values, with a maximum power rating of 0.125W and a nominal capacitance of 5.0pF. It has a wide operating temperature range of -55°C to +125°C. The SQP20AJB-3R9 has the same profile and pinout as many other types of resistors, making it easy to install. It has an industry-standard J-lead configuration, which provides reliable connection between the resistor and the PCB.The working principle of the SQP20AJB-3R9 is based on the electronic circuit schema. When an electrical current passes through the resistor, it develops an opposition to the electronic current. This resistance is proportional to the length of the circuit, or the number of turns of the resistor, and is represented by the resistor\'s resistance value. The current then flows through the resistor until it reaches the output end of the circuit, where the element finally dissipates the energy as heat.Through hole resistors such as the SQP20AJB-3R9 are employed in a wide range of applications, including industrial, consumer, and automotive electronics. They are used to control current flows, act as signal attenuators, stabilize supply voltages, and provide surge protection. In addition, they provide power dissipation, act as heatsinks, and protect circuits from overload and short circuits.Through hole resistors are also used in the design of various telecommunications systems and medical devices. They are often used to dampen signal interference from other components and provide a constant flow of current. Additionally, through hole resistors are essential in audio-related components, such as microphones, headphones, and amplifiers.The SQP20AJB-3R9 is a versatile and reliable through hole resistor that is suitable for a wide range of applications. Its ability to stand up to temperature fluctuations and its small size make it an ideal choice for electronics engineers. As with any component, proper installation is necessary in order to maximize its performance and ensure reliable operation.

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Part Number	Manufacturer	Price	Quantity	Description