
W21-R68JI Resistors |
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Allicdata Part #: | 985-1096-3-ND |
Manufacturer Part#: |
W21-R68JI |
Price: | $ 0.00 |
Product Category: | Resistors |
Manufacturer: | TT Electronics/Welwyn |
Short Description: | RES 0.68 OHM 3W 5% AXIAL |
More Detail: | 680 mOhms ±5% 3W Through Hole Resistor Axial Flame... |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | W20 |
Packaging: | Tape & Box (TB) |
Part Status: | Discontinued at Digi-Key |
Resistance: | 680 mOhms |
Tolerance: | ±5% |
Power (Watts): | 3W |
Composition: | Wirewound |
Features: | Flame Proof, Safety |
Temperature Coefficient: | ±75ppm/°C |
Operating Temperature: | -55°C ~ 200°C |
Package / Case: | Axial |
Supplier Device Package: | Axial |
Size / Dimension: | 0.220" Dia x 0.500" L (5.60mm x 12.70mm) |
Height - Seated (Max): | -- |
Number of Terminations: | 2 |
Failure Rate: | -- |
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Through Hole Resistors (W21-R68JI) Application Field and Working Principle
The W21-R68JI Through Hole Resistor is a type of two-terminal, non-linear resistor used for electrical devices. Through Hole Resistors are used for a variety of applications, including high power electronics, power transmission, and sensing devices. They are also ideal for automotive, military, and industrial applications. The W21-R68JI Through Hole Resistor is typically made of a durable material such as stainless steel and is designed to provide a highly efficient and reliable performance.
Types of Through Hole Resistors
There are several types of Through Hole Resistors available, including chip, radial, axial, and surface mount resistors. A chip resistor is a type of Through Hole Resistor that is made from a single, solid material such as polyester or ceramic. A radial resistor is a type of Through Hole Resistor that is designed in the form of a wheel with a single wire connecting its terminals. An axial Through Hole Resistor is a type of Through Hole Resistor with two terminals that are aligned along its axis. A surface mount resistor is a type of Through Hole Resistor that is designed to be attached onto a surface, such as a printed circuit board. The W21-R68JI Through Hole Resistor is a radial Through Hole Resistor.
Working Principle of Through Hole Resistors
The working principle of Through Hole Resistors is based on Ohm’s Law, which states that the potential difference (voltage) across a resistor is equal to the current that flows through it, multiplied by its resistance. The voltage and current are related directly and inversely; when the current increases, the voltage drops, and when the voltage increases, the current decreases. This direct and inverse relationship is the basis for the operation of Through Hole Resistors.
The resistance of a Through Hole Resistor is determined by two factors: its material composition and its physical size. The resistance of a Through Hole Resistor is typically measured in ohms. The higher the resistance value, the more current must flow through the resistor for a given voltage. The smaller the resistor, the lower its resistance value. By varying the size and composition of the material a resistor is made out of, manufacturers are able to produce a wide range of resistance values.
Applications of Through Hole Resistors
Through Hole Resistors are widely used in a variety of applications and industries, including automotive, consumer electronics, communications, and aerospace. In automotive applications, Through Hole Resistors are often used in fuel pumps, cooling fans, engine control computers, and brakes. They are ideal for use in consumer electronics because of their relatively low cost and high reliability. Through Hole Resistors can also be found in communications, as they are used to regulate signal strength of cables and in satellite television receivers. Finally, they are used in aerospace applications, such as in satellites, as they are designed to withstand the extreme temperatures and pressures of space.
Conclusion
The W21-R68JI Through Hole Resistor is an integral component in a variety of electronics and is designed to provide reliable and efficient performance. The working principle of Through Hole Resistors is based on Ohm’s Law, and the resistance of a Through Hole Resistor is determined by two factors: its material composition and its physical size. Finally, Through Hole Resistors are widely used in a variety of applications and industries, from automotive to aerospace.
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