The 423405 Chip Resistor
The 423405 is a surface-mount chip resistor, belonging to the family of Thick Film Resistors. This category of resistors is widely used in electronic applications due to their compact size, high power density, and excellent stability over a broad range of operating conditions. The 423405, in particular, boasts a power rating of 50mW, making it suitable for various low to moderate power applications.
Key Specifications
Power Rating: 50mW
The power rating of a resistor is a critical parameter that defines its ability to dissipate heat without compromising its performance. The 423405’s 50mW power rating indicates its capability to handle moderate power levels, making it ideal for applications where power dissipation is a key consideration.
Type: Thick Film Resistors
Thick Film Resistors are known for their thick film composition, which provides a robust and stable resistance. This type of resistor is fabricated by depositing a thick layer of resistive material onto a ceramic substrate. The thick film technology ensures durability and reliability in diverse operating conditions.
Overload Voltage (Max): 25V
The maximum overload voltage of 25V defines the upper limit of voltage the 423405 can withstand without compromising its performance. This parameter is crucial for applications where voltage spikes or fluctuations may occur, ensuring the resistor’s longevity and reliability under challenging conditions.
Tolerance: ±1%
Tolerance is a measure of the resistor’s deviation from its specified resistance value. The 423405’s impressive ±1% tolerance ensures high precision in resistance, making it suitable for applications where accuracy is paramount. This level of precision is particularly beneficial in circuits requiring tight control over resistance values.
Temperature Coefficient: ±200ppm/℃
The temperature coefficient indicates how much the resistor’s resistance will change with variations in temperature. The ±200ppm/℃ coefficient of the 423405 signifies a relatively low sensitivity to temperature changes, making it suitable for applications with varying thermal conditions.
Operating Temperature Range: -55℃~+155℃
The wide operating temperature range of the 423405 (-55℃ to +155℃) showcases its versatility in handling extreme temperature conditions. This makes the resistor suitable for applications in diverse environments, from industrial settings to automotive electronics, where temperature fluctuations are common.
Resistance: 910Ω
The specified resistance value of 910Ω is a crucial parameter, defining the resistor’s role in circuit design. In applications where precision is essential, such as signal conditioning or feedback networks, the 423405’s 910Ω resistance provides a reliable and accurate solution.
Applications of the 423405 Chip Resistor
The versatile nature of the 423405 chip resistor makes it applicable in a wide range of electronic circuits. Some key applications include:
Signal Conditioning Circuits:
The precision and low tolerance of the 423405 make it well-suited for signal conditioning circuits where maintaining accurate resistance values is critical for signal integrity.
Feedback Networks:
In circuits requiring stable feedback networks, the 423405 can play a crucial role in maintaining the desired resistance levels, contributing to the overall stability and performance of the system.
Voltage Divider Circuits:
Due to its high overload voltage capability and precise resistance value, the 423405 is an excellent choice for voltage divider circuits, providing accurate voltage references.
Temperature Sensing Applications:
The resistor’s wide operating temperature range and low temperature coefficient make it ideal for temperature sensing applications, ensuring accurate and stable performance across varying temperature conditions.
Automotive Electronics:
The 423405’s ability to withstand a wide temperature range makes it suitable for use in automotive electronics, where temperature variations are common. It can find applications in engine control units, sensors, and other critical components.
Design Considerations
When incorporating the 423405 chip resistor into circuit designs, certain considerations must be taken into account to ensure optimal performance:
Power Dissipation:
Given the 50mW power rating, designers should carefully assess the power dissipation requirements of their circuit to prevent overheating and ensure the longevity of the resistor.
Precision Requirements:
In applications demanding high precision, the ±1% tolerance of the 423405 should be leveraged to achieve the desired level of accuracy.
Temperature Considerations:
The resistor’s operating temperature range and temperature coefficient must be considered to ensure reliable performance across the entire range of expected operating conditions.
Voltage Limits:
While the 423405 can handle a maximum overload voltage of 25V, designers should ensure that the circuit operates within this limit to prevent potential damage to the resistor.
The circuit design utilizing the 423405 chip resistor represents a robust and reliable solution for various electronic applications. The versatility and performance of the 423405 make it a valuable component in designing circuits with precision and efficiency. Its compact size, high stability, and low tolerance contribute to the overall success of electronic systems.
Furthermore, the availability of the 423405 chip resistor through suppliers like WIN SOURCE ensures easy accessibility for engineers and designers. WIN SOURCE’s commitment to providing quality electronic components and reliable sourcing services enhances the overall feasibility and convenience of incorporating the 423405 into circuit designs.
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