5931 alloy resistor manufacturer and product series detailed explanation
>In the field of high current detection, alloy resistors with a package size of 5931 are widely used due to their excellent performance.
In electronic circuit design, especially in power management and current monitoring applications, alloy resistors with 5931 package size are highly favored due to their excellent power processing capability and stability. This type of resistor can maintain stable operation under high power conditions, typically withstanding power consumption of 5W to 10W, while providing accurate current detection function.
Main manufacturers and product lines
Vishay
Vishay is a leading brand in the field of alloy resistors, with its 5931 size Power Metal Strip ® The series of products are highly recognized by the industry:
WSL series: Provides 5W power, with a resistance range from an extremely low 0.3m Ω to 3m Ω, with two tolerance options of ± 1% and ± 5%. It adopts a fully welded structure and has extremely low thermoelectric potential and temperature coefficient of resistance (TCR).
WSLP series: With stronger power processing capabilities ranging from 7W to 15W, the resistance covers 0.1m Ω to 3m Ω, and some models comply with AECQ200 automotive grade standards, featuring resistance to sulfurization and moisture.
WSLT series: designed specifically for high temperature environments, with a maximum operating temperature of 275 ° C, offering two tolerance options of ± 1% and ± 5%, using metal strip technology, suitable for harsh environments.
Ellon
Ellon offers metal strip resistors in 5931 package, with an extremely low resistance of 2m Ω and a power processing capability of 7W, with a tolerance of ± 1%. The operating temperature range covers 55 ° C to 170 ° C, making it suitable for general current detection applications.
ROHM Semiconductor
ROHM's PSR500HTQFF0L50 is a 5931 size alloy resistor. Although this model has been discontinued, it offers an extremely low resistance of 0.5m Ω and a high-power rating of 10W with a tolerance of ± 1%, using metal foil technology.
Common characteristics of 5931 alloy resistors
Alloy resistors with a package size of 5931 typically have the following common characteristics:
Standard size: 15.0mm x 7.75mm x 0.5mm (length x width x height)
Low resistance range: 0.1m Ω to 10m Ω, suitable for high current detection
High power processing: 5W to 15W, capable of withstanding high power consumption
Excellent temperature characteristics: low TCR (temperature coefficient), typically below 100ppm/° C, ensuring stability at different temperatures
High reliability: Most products adopt fully welded structures, providing stable long-term performance
Application field
5931 size alloy resistors are widely used in:
Switches and linear power supplies
Motor drive control system
Battery Management System (BMS)
Power amplifier and instrumentation
Industrial inverters and frequency converters
Automotive Electronic Systems
Selection Recommendations
When selecting 5931 alloy resistors, the following factors should be considered:
Power requirement: Choose a resistor with an appropriate rated power based on the actual power consumption in the application, and it is recommended to reserve an appropriate margin
Resistance accuracy: Current detection applications typically require an accuracy of ± 1% or higher
Temperature coefficient: Low TCR is crucial in environments with significant temperature fluctuations during operation
Special requirements: For example, automotive electronics must comply with AECQ200 standards, and industrial environments may require sulfur resistant models
Alloy resistors provide excellent performance balance in the 5931 package size, combining high power processing capability, low resistance accuracy, and excellent thermal stability, making them an ideal choice for high-performance current detection applications.
