The 3E3 Ohm (3.3E) 1/4W 5% Copper Wire Through Hole
Resistor is a commonly used resistor in electronic circuits where a
resistance of 3.3 ohms is required. It is designed for general-purpose
applications, offering a combination of low resistance and moderate power
handling. Below is a detailed description:
Specifications:
- Resistance
Value: 3.3 ohms (3.3E)
The resistance value of 3.3 ohms is suitable for applications requiring a
moderate level of current control, power dissipation, or voltage drop.
- Power
Rating: 1/4 watt (0.25W)
This resistor is rated to dissipate up to 1/4 watt (0.25W) of power. It is
designed for low-power circuits and is not suitable for high-power
applications.
- Tolerance:
±5%
The resistor’s actual resistance may vary within 5% of the nominal value
of 3.3 ohms. For example, the resistance could range from 3.135 ohms to
3.465 ohms. This level of tolerance is typical for general-purpose
resistors.
- Mounting
Type: Through hole
This resistor is designed with leads that pass through holes in a printed
circuit board (PCB) and are soldered into place. The through-hole mounting
type provides reliable electrical connections and mechanical stability,
making it ideal for prototyping and mass production.
- Material:
Copper Wire
The resistor is constructed with copper wire, which is chosen for its
excellent conductivity, cost-effectiveness, and availability. Copper wire
resistors are commonly used in low-power applications where high precision
and cost efficiency are important.
Key Features:
- 3.3
Ohms Resistance: This resistor provides a resistance of 3.3 ohms,
which is ideal for circuits requiring current limiting or specific voltage
drops. It is often used in power supply circuits, LED drivers, motor
controllers, or simple signal conditioning.
- 1/4W
Power Rating: The 1/4W power rating indicates that this resistor is
suitable for low-power applications where only small amounts of power need
to be dissipated, such as in control systems, audio devices, or voltage
regulation circuits.
- 5%
Tolerance: A tolerance of ±5% means the actual resistance value may
vary by up to 5% from the nominal 3.3 ohms. This is typical for
general-purpose resistors where exact precision is not always critical,
but reliable performance is needed.
- Copper
Wire Construction: Copper wire offers a low cost and good
conductivity, making it a common material for low-power resistors. While
copper wire resistors may not have the thermal stability of metal oxide or
carbon film resistors, they are well-suited for applications that do not
require high thermal or mechanical stress handling.
Typical Applications:
- Current
Limiting: The 3.3-ohm resistor value is commonly used in circuits
where you need to limit or regulate the flow of current. For instance, it
can be used in LED circuits, motor driver circuits, or other low-power
applications to prevent excessive current that could damage sensitive
components.
- Power
Dissipation: This resistor is suitable for applications where small
amounts of power dissipation are needed. Examples include basic voltage
regulation circuits, signal conditioning, or audio systems.
- Voltage
Division: When used in combination with other resistors, this 3.3-ohm
resistor is ideal for voltage divider circuits. It can help to create
specific voltage drops or reference voltages in various applications.
- Feedback
Networks: In amplifier circuits, this resistor can be used to set the
feedback ratio or adjust the gain. It is commonly used in low-power
operational amplifier (op-amp) circuits.
- Signal
Processing: The 3.3-ohm resistance is also useful in low-power analog
signal processing applications, including filtering, amplification, and
conditioning in electronic devices such as audio systems or sensors.
- Circuit
Protection: It can be used to protect components in a circuit by
controlling the current and preventing overcurrent conditions, such as in
surge protection or overcurrent protection circuits.
