Detailed explanation of core parameters for bare copper sheet resistor 5931 volume (recommended for the Yineng Elon ESR series)
Bare copper resistor 5931 is a common high-power surface mount resistor widely used in power modules, communication systems, and automotive electronics. This article provides a detailed introduction to the core parameters related to the volume of this model.
Boundary dimension standard
The external dimensions of bare copper resistor 5931 have standardized specifications:
Length: 15.0mm (some models are 15.00mm)
Width: 7.7mm (some models are labeled as 7.75mm)
Height: Different models have differences, ranging from 0.5mm to 1.76mm
These size parameters directly affect the installation method and space occupation of resistors on circuit boards, and special attention should be paid during design.
Relationship between power and size
The 5931 package has a wide range of resistor power, and the size is positively correlated with power capacity:
5W-8W series: Some products such as YAGEO's PU5931JKNT50U3L and Ellon's ESRH51F10W0M30M02G have a power of 5W and 8W respectively in the standard 5931 size
10W-15W series: Ellon's ESRH51F15W0M10M02G has a power of up to 15W in the same size
Usually, products with higher power have stricter requirements for heat dissipation performance under the same volume.
Resistance value and accuracy
The resistance value of bare copper resistor 5931 is extremely low, suitable for high current detection scenarios:
Resistance range: from 200 μ Ω to 3m Ω
Accuracy: generally ± 1%, some models ± 5%
temperature characteristics
Working temperature range: Most products support 55 ° C to 170 ° C
Temperature coefficient: ranging from ± 25ppm/° C to ± 250ppm/° C depending on the model
Selection suggestions
When selecting bare copper resistor 5931, comprehensive consideration should be given to:
Select the appropriate model based on power requirements, ensuring sufficient margin is reserved
Consider whether the resistance value and accuracy meet the circuit requirements
Evaluate the impact of temperature coefficient on system stability
Confirm that the installation space matches the dimensions
The bare copper resistor 5931 plays an important role in various electronic devices due to its reasonable volume to power ratio. When selecting, fully understanding these volume related parameters can ensure the reliability and stability of circuit design.
