Reviews & Analysis

In-Depth Examination of EPCOS (TDK) B82144B2472K000: A Versatile 4.7μH Wirewound Inductor

By Mark Harris Thursday, 23 February 2023

Delve into a thorough performance analysis of the 4.7μH EPCOS (TDK) B82144B2472K000 wirewound inductor. Uncover the precise characteristics of this component and how it potentially suits your electronics projects. Get an insightful comparative evaluation on various performance parameters.

Introduction

In today's competitive electronics market, the performance of every component can make the difference between acceptable and exceptional. Inductors are no exception, and our analysis demonstrates the capabilities of the EPCOS (TDK) B82144B2472K000 Inductor relative to a statistical benchmark formed from other components of the same value. In this data-driven review, we own the responsibility of providing a profound and scrupulous evaluation of the B82144B2472K000 Inductor.

Our analysis of the B82144B2472K000 Inductor covers inductance, series resistance, dissipation factor, and quality factor, and is based on LCR measurements taken at 1 Volt and 10 Volts across various test frequencies. As you read, we encourage you to think critically about the value and reliability of this component as you consider whether to integrate it into your designs.

Pros/Cons:

  • Pro: Offers reasonable quality factors at higher test frequencies
  • Pro: Exhibits consistency in series resistance with minimal variation
  • Con: Lower quality factor values at the lower test frequencies
  • Con: Slight variation in inductance measurements across test frequencies

Impedance

In this in-depth evaluation of the EPCOS (TDK) B82144B2472K000 wirewound inductor, we will closely examine the impedance characteristics of the component and draw comparisons to a statistical benchmark comprising components of the same value. This scrutiny will provide readers with a comprehensive understanding of the performance of the B82144B2472K000 inductor in relation to its peers.

Beginning our assessment with LCR measurements conducted at 1V, we observe that the impedance values for the B82144B2472K000 inductor consistently surpass the average values for the components in the statistical benchmark. This performance trend persists across a range of test frequencies, spanning from 5 Hz up to 1 MHz. Notably, the most significant deviations occur in the range of 1 kHz to 10 kHz, where the B82144B2472K000's impedance values exceed the benchmark's averages by up to 73%. As test frequencies increase towards 1 MHz, the gap between the component's impedance values and the benchmark narrows; however, the B82144B2472K000's impedance values consistently remain higher than the benchmark average.

Similarly, the LCR measurements executed at 10V provide further insight into this wirewound inductor's performance. Echoing our findings from the 1V assessment, the B82144B2472K000 persists in showcasing higher impedance values in comparison to the statistical benchmark's average values within the corresponding test frequencies. While the performance deviations are somewhat smaller than those observed in the 1V scenario - ranging between 3% and 46% - the B82144B2472K000 continues to surpass the benchmark across the entire frequency spectrum.

Through a probing examination of the B82144B2472K000 wirewound inductor's impedance characteristics, we've highlighted its consistently superior performance compared to the statistical benchmark of components with the same value. These findings offer valuable insight for professionals seeking a component with robust impedance features in various operating conditions, emphasizing the B82144B2472K000's potential for use in a range of electronic applications.

Inductance

An in-depth exploration of the inductance values displayed by the B82144B2472K000 inductor demonstrates intriguing characteristics when benchmarked against the provided statistical data set. This analysis examines inductance values obtained under two different voltage test conditions (1 Volt and 10 Volts) and measures their behavior across a wide variety of test frequencies.

When examined at a 1V test condition, the B82144B2472K000 inductor showcases inductance values that surpass the statistical benchmark averages, particularly in the lower-frequency domain. As the test frequencies progress, the component inductance values tend to gradually merge with the benchmark averages, displaying a unique convergence. For instance, at test frequencies of 850k Hz and 950k Hz, the B82144B2472K000 inductor yields inductance values marginally higher than the respective maximum benchmark values of 5.183μH and 5.183μH.

On the other hand, under a 10 Volts test condition, the B82144B2472K000 inductor demonstrates a different pattern compared to the statistical benchmark. At lower test frequencies such as 5 Hz and 10 Hz, the observed inductor values significantly exceed the corresponding maximum benchmark values. However, as the test frequencies ascend, the component's inductance values fall within the bounds prescribed by the statistical benchmark, often aligning with or even surpassing the peak benchmark values. For instance, at a test frequency of 50k Hz, the B82144B2472K000 attains an inductance value of 4.978μH, slightly surpassing the top statistical benchmark value of 5.221μH.

In summary, the B82144B2472K000 inductor presents a distinctive performance profile in terms of inductance values across varying test conditions and frequencies. The component's behavior under 1V and 10V test conditions highlights its adaptability and suitability for a wide range of performance requirements, making it versatile and ideal for various electronic applications.

Series Resistance

In this comprehensive analysis, we will delve into the performance of the B82144B2472K000's series resistance in relation to the statistical benchmark of comparable inductors available in the market. This data-driven assessment provides crucial insights for engineers evaluating this inductor's appropriateness for their circuits and applications.

During LCR measurements carried out using a 1-Volt signal, the B82144B2472K000's series resistance demonstrates values notably lower than the average across a broad range of test frequencies, which signals its remarkable potential in various applications, particularly where low series resistance is valuable. For instance, at 5kHz, its series resistance measures at 63.48m Ohms, well below the benchmark's average of 260.9m Ohms. This performance, consistently observed at other tested frequencies, indicates that this inductor is optimally engineered to cater to low-series resistance requirements.

Extending the evaluation to LCR measurements taken at a higher signal level of 10-Volts, we once again observe the B82144B2472K000's superior performance in comparison to the benchmark, notwithstanding the diminishing gap between the two. A prime example of this can be seen at 10kHz, where its series resistance records at 46.83m Ohms, which is significantly lower than the benchmark's average of 267.2m Ohms. This outcome is consistently found across various test frequencies and exemplifies that this inductor is adeptly designed to minimize resistive losses, thereby enhancing overall efficiency and effectiveness of end systems where it is employed.

Consequently, this comprehensive analysis reveals that the B82144B2472K000 inductor stands out from its counterparts in terms of series resistance performance. Its consistently low values across various test frequencies demonstrate its adaptability and potential compatibility with a wide range of applications, particularly those that necessitate minimal series resistance. This product review highlights essential knowledge for engineers to make informed decisions and choose the most appropriate inductor for their specific applications.

Dissipation Factor and Quality Factor

An examination of the EPCOS (TDK) B82144B2472K000 inductor reveals some intriguing observations about its Quality (Q) Factor performance across different frequency levels. It is essential to consider the Q Factor in inductor selection, as it provides a measure of the energy losses occurring in an inductor in terms of energy storage and energy dissipation through the element.

When comparing the measurements of the B82144B2472K000 inductor at 1 Volt against the provided statistical benchmark data, we observe a varying behavior of the Q Factor across different frequency levels. Within the low-frequency range, specifically from 5Hz to 100Hz, the B82144B2472K000 exhibits a relatively low Q, ranging between 0.03 and 0.04, indicating a high energy dissipation rate. In general, this is considered an unfavorable attribute, as the performance of an inductor is largely determined by its ability to store and release energy smoothly with minimal losses.

Interestingly, as the frequency increases progressively, reaching 75kHz and beyond, the Quality Factor starts to demonstrate substantial improvement. From 75kHz up to 1MHz, Q values range between 28.47 and 74.65, showcasing better overall performance characterized by lower energy losses when operated at higher frequencies.

In LCR measurements at 10 Volts, we can see a relatively similar pattern in the Quality Factor performance. At lower frequency levels (5Hz - 100Hz), the inductor remains low in Q, within the range of 0.04 to 0.10. However, there is a turning point occurring at higher frequency regimes, marking better efficiency and low energy dissipation. As the frequency increases from 500Hz to 1MHz, the Q factor traverses upwards from 0.21 to 63.28, showcasing an improvement in performance consistency at higher frequencies.

Based on these observations, engineers considering the B82144B2472K000 inductor for their circuits may want to carefully assess and weigh their frequency-dependent application requirements. Although the low-frequency performance displays high energy losses (Low Q), the inductor appears to be considerably efficient (High Q) within the medium to high-frequency domains. Consequently, the suitability of this inductor hinged on the specific application and operating frequency becomes an essential aspect to consider for optimal performance and results.

Comparative Analysis

To assess the performance of EPCOS (TDK) B82144B2472K000 Inductor, this review will examine the component against a statistical benchmark of similar inductors with a nominal value of 4.7μH. The comparative analysis is aimed to provide insights for electronic engineers evaluating the applicability of this Wirewound inductor for their circuits.

Starting with the impedance measurements, the B82144B2472K000 performs moderately in comparison to the benchmark across most of the frequencies at 1 Volt. Notably, at 50 kHz, the B82144B2472K000 registers an impedance of 1.546 Ohms, whereas the benchmark average impedance sits at 1.562 Ohms. The deviation becomes more pronounced as the frequency increases, where at 750 kHz the impedance for the B82144B2472K000 measures at 22.76 Ohms, compared to the average impedance value of the benchmark, which is 21.31 Ohms.

When considering the quality factor, the B82144B2472K000 performs comparatively well across most frequencies when tested at 1 Volt. At 10 kHz, the quality factor is 4.88, where the benchmark average quality factor lies at 4.78. Interestingly, at higher frequencies such as 450 kHz, the B82144B2472K000 quality factor (64.40) slightly outperforms the benchmark average at 68.76.

Moreover, the series resistance measurements put the B82144B2472K000 Inductor's performance closely in line with the benchmark. At both 1k and 20k frequencies, the B82144B2472K000 reveals comparable values. At 1 kHz, the component has a series resistance of 63.11m, which is relatively close to the benchmark average (62.56m). Similarly, at 20 kHz, the B82144B2472K000 series resistance (65.77m) remains in close proximity to the benchmark average (66.15m).

The series inductance measurements for this component depict a comparable performance across the range, with some minor deviations. At 5k, the B82144B2472K000 has a series inductance of 4.945μH, slightly above the benchmark average of 4.654μH. Additionally, we notice a difference at 50 kHz where the B82144B2472K000 inductance value is 4.915μH, while the benchmark average is 4.617μH.

Overall, the EPCOS (TDK) B82144B2472K000 Inductor offers matching performance with the expected benchmark for most of the frequencies in terms of impedance, quality factor, series resistance, and series inductance when tested at 1 Volt. However, it is essential for electronic engineers to evaluate each specific parameter depending on the requirements of their designs to ensure optimal inductor selection.

Conclusion

Our analysis of the EPCOS (TDK) B82144B2472K000 Inductor has revealed mixed results in terms of performance when compared to the statistical benchmark. The nominal value of the inductor is 4.7μ, with a tolerance of ±10%. Throughout the review, the data was collected at both 1 Volt and 10 Volts for various test frequencies.

In the lower test frequency range, the inductor performed relatively close to the benchmark figures, while at higher test frequencies, the performance deviated more, with a considerable increase in the impedance, series resistance, and a poor quality factor in some cases. Nevertheless, the wirewound composition and the through-hole mounting design offer reliability and durability.

Regarding the Inductance performance, B82144B2472K000 showed good consistency and compatibility with the benchmark data, maintaining competitive levels throughout the test frequencies. However, the series resistance demonstrated that this inductor could exhibit higher resistance than desired, affecting the overall performance.

While the B82144B2472K000 Inductor may not have performed ideally in all cases, it is still a component worth considering if you need a stable and reliable option, thanks to the wirewound composition and EPCOS (TDK) brand reputation. Ultimately, factors such as the specific application and budget may determine whether this inductor is an optimal choice for your next project. Electronics engineers are urged to take these findings into account while choosing the right inductor.

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