The 2E2 Ohm (2.2E) 1/4W 5% Copper Wire Through Hole
Resistor is a general-purpose resistor used in a variety of electronic
applications where a resistance value of 2.2 ohms is required. Below is a
detailed description:
Specifications:
- Resistance
Value: 2.2 ohms (2.2E)
This resistor provides a resistance of 2.2 ohms, which is commonly used in
circuits for current limiting, power dissipation, and signal processing
where low resistance is needed to control the flow of current.
- Power
Rating: 1/4 watt (0.25W)
The resistor is rated to dissipate up to 0.25 watts of power. This makes
it suitable for low-power circuits where power dissipation is relatively
small.
- Tolerance:
±5%
The actual resistance may vary within a 5% range of the nominal value. For
example, the resistance could be between 2.09 ohms and 2.31 ohms. This
level of tolerance is acceptable for general-purpose applications where
precise accuracy isn't always critical.
- Mounting
Type: Through hole
The resistor is designed with leads that pass through holes in a printed
circuit board (PCB) for soldering. This through-hole mounting type is
widely used for ease of assembly and is common in both professional and
prototyping circuits.
- Material:
Copper Wire
The resistor is constructed using copper wire, which is chosen for its
excellent electrical conductivity and relatively low cost. Copper wire
resistors are often used in lower-power applications where high precision
and cost-efficiency are desired.
Key Features:
- 2.2
Ohms Resistance: This resistance value is commonly used for
current-limiting applications, such as in power supply circuits, LED
current control, or speaker circuits, where you want to regulate the flow
of current without adding excessive resistance.
- 1/4W
Power Rating: With a 1/4 watt rating, this resistor can handle
low-power applications, making it ideal for circuits that operate at low
voltages and currents, such as signal-level circuits, small amplifiers, or
general-purpose electronic systems.
- 5%
Tolerance: A tolerance of ±5% means the resistor’s actual resistance
value could vary by 5% from its nominal 2.2 ohms. This tolerance is
typical for general-purpose resistors, where exact precision is not always
required, but stability and reliability are important.
- Copper
Wire Construction: Copper wire provides good conductivity, making this
resistor a cost-effective option for lower-power applications where high
performance is not required in terms of thermal stability or resistance
accuracy.
Typical Applications:
- Current
Limiting: The 2.2-ohm resistor value is useful in circuits where you
need to limit the flow of current, such as in LED circuits, motor driver
circuits, or power supply applications to prevent overcurrent conditions.
- Power
Dissipation: Due to its low power rating, this resistor can be used to
dissipate small amounts of power in circuits such as simple voltage
regulators or low-power amplifiers.
- Signal
Processing: This resistor can be used in circuits where the current
needs to be controlled or in signal processing systems that require low
resistance to function efficiently, such as in audio equipment or signal
conditioning circuits.
- Voltage
Division: The 2.2-ohm value may also be used in voltage divider
circuits to create specific voltage drops in various parts of a circuit,
particularly in low-voltage applications.
- Feedback
Networks: It can be used in feedback networks in amplifiers,
oscillators, or other analog circuits to adjust gain or impedance
characteristics.
