Introduction

In this review, we will evaluate the performance of the Taiyo Yuden NRS5010T4R7MMGF Inductor, a 4.7μH drum core wirewound component, against industry benchmarks. Other electronics engineers working on their circuits will find the following analysis useful when considering the applicability of this Inductor to their projects. We will highlight the NRS5010T4R7MMGF's pros and cons based on data sourced from LCR measurements at both 1 Volt and 10 Volts over a wide range of test frequencies.

• Pros:
  • Performs relatively close to other 4.7μH Inductors in terms of impedance, series resistance, and series inductance
  • Works across a broad frequency range
  • Generated minimal heat, as indicated by the dissipation factor and quality factor
• Cons:
  • Tolerance value of ±20% is relatively high
  • Quality Factor is lower when compared to some benchmarked Inductors
  • Not as efficient in high-frequency circuits due to lower-quality factors

Impedance

The impedance performance of Taiyo Yuden's NRS5010T4R7MMGF inductor has been extensively tested and analyzed in comparison to a statistical benchmark formed from other components of the same value. This thorough examination provides users with a well-researched, credible assessment to make informed decisions about its potential use in their applications.

At the 1 Volt test, NRS5010T4R7MMGF's impedance mostly remains below the benchmark's average impedance across a broad spectrum of frequencies. Specifically, the component excels at low frequencies (i.e., 5 kHz and below), displaying impedance levels significantly lower than the average and even minimum values observed in comparable devices. This characteristic is advantageous because lower impedance typically results in reduced power dissipation and improved efficiency. In higher frequency ranges (20 kHz and above), impedance levels are slightly above average, indicating decent overall performance as the component can still manage to reduce undesirable circuit effects like voltage drops and signal distortion.

Testing at 10 Volts exhibits a similar performance trend to that observed at 1 Volt. The component demonstrates lower impedance levels compared to the benchmark at low frequencies (5 kHz and below), reflecting its superior performance in these ranges. However, NRS5010T4R7MMGF's impedance marginally surpasses the benchmark's average value as the frequencies rise. Nevertheless, the impedance values at higher frequencies do not reach excessive levels, demonstrating that the inductor can still function satisfactorily in various operating conditions.

Overall, the NRS5010T4R7MMGF inductor demonstrates remarkable impedance performance at lower frequencies and satisfactory performance at higher frequencies when compared to the statistical benchmark. This inductor could be a valuable addition to applications where lower frequency responses are crucial factors in choosing an optimal component to satisfy design demands. Furthermore, understanding these impedance characteristics is essential for engineers because it can help them evaluate how the inductor performs in different settings and determine whether it meets the specific requirements of their electronic circuits.

Inductance

According to the measurements at 1 Volt, the NRS5010T4R7MMGF Inductor, manufactured by Taiyo Yuden, exhibits a wide variation in series inductance. The observed inductance ranges from 1.023μH at 5 Hz to 4.138μH at 1 MHz. The difference between the maximum series inductance (12.66μH at 10 Hz) and the nominal value of 4.7μH is significant, indicating that the component may not perform as intended in specific circuits. When compared with the statistical benchmark, the NRS5010T4R7MMGF Inductor indeed performs below average at most test frequencies at 1 Volt.

Upon examining the measurements at 10 Volts, the NRS5010T4R7MMGF Inductor demonstrates higher inductance values, peaking at 57.22μH at 10 Hz. This peak value significantly exceeds the nominal value and represents a considerable deviation. Despite the large fluctuation at low frequency, the component exhibits more consistency at higher frequencies, displaying inductance values relatively closer to its nominal value of 4.7μH.

Taking into account both the 1 Volt and 10 Volt LCR measurements, it can be inferred that the NRS5010T4R7MMGF Inductor's inductance performance might not be ideal for applications requiring high precision or tight tolerance levels. The evident deviation from both the statistical benchmark and the nominal value implies that engineers should carefully evaluate this component's reliability across different frequency ranges before incorporating it into their circuits. As a result, a thorough analysis of the inductance characteristics of Taiyo Yuden's NRS5010T4R7MMGF Inductor is crucial for determining its suitability in specific applications.

Series Resistance

In this section, we will analyze the series resistance performance of Taiyo Yuden's NRS5010T4R7MMGF Inductor by examining the LCR measurements taken at 1 Volt and 10 Volts with varying test frequencies. We will then compare these observations to the statistical benchmark data provided to determine the efficiency and effectiveness of this particular inductor.

At 1 Volt, the NRS5010T4R7MMGF Inductor demonstrates a series resistance range of 149.8m to 814.5m Ohms across the entire tested frequency spectrum. According to the benchmark data, the inductor's series resistance consistently maintains lower values in comparison, with the highest value of 814.5m Ohms at 1MHz being substantially below the maximum benchmark value of 7.266 Ohms. When considering the average series resistance, the component remains well below the benchmark average, indicating more consistent and efficient performance under various conditions.

Upon evaluating the LCR measurements taken at 10 Volts, we see that the series resistance varies from 196.4m to 2.224 Ohms across the 50kHz to 1MHz frequency band. Similar to its performance at 1 Volt, the NRS5010T4R7MMGF Inductor consistently maintains lower resistance values as compared to the benchmark data, notably at the higher frequencies. This lower resistance at higher frequencies signifies improved efficiency and reduced power dissipation when the component is utilized in diverse electronic applications. Understanding this behavior allows better optimization of circuits and designs when incorporating the NRS5010T4R7MMGF Inductor to maximize performance and energy efficiency.

Dissipation Factor and Quality Factor

An in-depth analysis of the Taiyo Yuden NRS5010T4R7MMGF Inductor's performance can be conducted by focusing on its Dissipation Factor (Df) and Quality Factor (Q). Both of these parameters give valuable insights into the energy loss and energy storage abilities of this inductor, essential factors for evaluating its suitability for various applications.

When examining the LCR measurements at 1 Volt, the Q factor shows a broad range, starting from 0.02 at 100 Hz and reaching a peak value of 34.98 at 550 kHz. As expected, the Q factor increases with higher frequencies, leading to enhanced energy storage capabilities. A comparison with benchmark data reveals that the Taiyo Yuden inductor outperforms across the frequency range of 100 Hz to 550 kHz, showcasing Q values consistently higher than the benchmarks.

When reviewing LCR measurements taken at 10 Volts, a notable pattern emerges as the Q factor varies from 7.54 at 50 kHz to its peak value of 14.29 at 400 kHz. It is observed that the Q factor decreases beyond 400 kHz, indicating that the inductor's energy storage ability starts to deteriorate at those higher frequencies. Even though the inductor exhibits similar performance as benchmark data in the lower to mid-frequency range (<400 kHz), it is less optimal in the higher frequency range (>400 kHz) due to the drop in Q factor.

The direct Df values have not been provided in this analysis; however, a well-known correlation exists between Q factor and Df: a higher Q factor corresponds to a lower Df value, resulting in reduced energy losses. Consequently, it can be inferred that lower Df values can be anticipated in the frequency ranges where the Q factor peaks, highlighting the Taiyo Yuden inductor's potential as an excellent choice for such applications that operate in those frequency ranges.

Comparative Analysis

Upon analysing the performance of Taiyo Yuden's NRS5010T4R7MMGF Inductor, it's evident that when comparing to the statistical benchmark, this Drum Core wirewound inductor stands out in terms of the quality factor and impedance, particularly at higher frequencies. In this comprehensive review, we evaluate various aspects of the inductor's performance, diving into parameters such as impedance, quality factor, and series resistance, highlighting the differences between the component and the benchmark data at 1V and 10V test frequencies respectively.

Notably, the NRS5010T4R7MMGF displays lower impedance at lower test frequencies (5-1k) in comparison to the benchmark average, leading to improved performance in circuits with a low operating frequency. However, at higher frequencies especially beyond 50k, the inductor shows a considerably higher impedance than the benchmark average. Therefore, depending on the requirements of a specific application, engineers should weigh these trade-offs in performance.

A similar trend can be observed for the quality factor, where the Taiyo Yuden inductor exceeds the benchmark average in the range of 75k to 1M test frequencies. It demonstrates a promising performance for applications that require high-quality factor components. Elsewhere, the quality factor remains close but lower than the benchmark average. As a result, in applications demanding high-quality factor at lower frequencies, one should consider these differences between the inductor and the benchmark quality factors.

In terms of series resistance, the NRS5010T4R7MMGF Inductor demonstrates lower values compared to the benchmark average. The reduced series resistance is beneficial in terms of reducing power losses and maintaining efficiency in circuits. Moreover, the component exhibits a fairly constant series inductance across the test frequencies, which is an essential characteristic for various applications. This constant inductance ensures reduced variability and improved efficiency during circuit operation.

In conclusion, Taiyo Yuden's NRS5010T4R7MMGF Inductor exhibits a compelling performance when compared to the statistical benchmark, particularly in quality factor and impedance at higher frequencies. The lower series resistance aims to minimize power losses and maintain high levels of efficiency in circuits. However, specific application requirements and frequency constraints should be carefully considered by engineers when choosing this Drum Core wirewound inductor for their circuits.

Conclusion

In conclusion, the performance of Taiyo Yuden's NRS5010T4R7MMGF Inductor reveals mixed results when compared to the statistical benchmark data of similar value components. This Drum Core, Wirewound Inductor has inferior performance in terms of Impedance and Series Resistance when measured at certain test frequencies. However, the component excels in its Quality Factor and fares better in Series Inductance in comparison to other average components.

At lower frequencies (1 kHz to 100 kHz), NRS5010T4R7MMGF outperforms the benchmark's average in both Series Inductance and Quality Factor departments, offering the electronic engineers more consistent inductor performance for their circuits. However, at higher frequencies, the Inductor seems to be leaning closer to the benchmark values and, in some cases, exhibits inferior performance. Specifically, at test frequencies equal or above 300 kHz, the Inductor performs below the average for Series Inductance, and its Impedance and Series Resistance readings increase, indicating a less efficient performance.

Overall, Taiyo Yuden's NRS5010T4R7MMGF Inductor can be considered as a suitable choice for circuits operating at lower frequencies (below 100 kHz) where it outperforms the benchmark standards. However, electronic engineers should approach its use cautiously or consider alternative options if their applications demand higher frequencies or lower Impedance and Series Resistance values.