Introduction

Here we have the ECA-1EHG470 Capacitor, an aluminum electrolytic capacitor from Panasonic Electronic Components. This device is unique, boasting an impressive capacitance value of 47μF at ±20% tolerance with a 25V voltage rating, making it even more captivating amongst its counterparts.

This study evaluates the performances of the ECA-1EHG470 capacitor by comparing its performance data against the statistical benchmark data formed from other Aluminum Electrolytic capacitors in the industry. The study will reveal vital data points that are pivotal in weighing the options of selecting this capacitor for circuits designed by qualified engineers. Areas of focus in the review include Capacitance, Series Resistance, Dissipation Factor, and Quality Factor, among others.

Pros:

• 25V Voltage Rating
• Capacitance value of 47μF with ±20% tolerance
• Through-hole mounting system makes for easy installation
• Radial, can-style packaging format
• Manufactured by reputable company Panasonic Electronic Components

Cons:

• Low Dissipation Factor
• Lower Quality Factor compared to statistical benchmark data in some frequency ranges

Impedance

In this section, we will delve into the impedance performance analysis of the ECA-1EHG470 aluminum electrolytic capacitor in comparison to a statistical benchmark. This benchmark incorporates data from various capacitors that share similar specifications. To deliver a comprehensive understanding of the ECA-1EHG470's performance, we will examine its behavior across a range of test voltages and frequency values.

Comparing the ECA-1EHG470's impedance values against the statistical benchmark with a test voltage of 1V reveals a remarkably close performance. Throughout all tested frequencies, the capacitor's impedance remains consistently near the average benchmark data. For instance, at 50Hz, the measured impedance of 68.3 Ohms exhibits just a 1.78% deviation from the benchmark average of 69.54 Ohms. Likewise, at 100kHz and 1MHz, the ECA-1EHG470 records measurements of 1.148 and 1.016 Ohms, respectively, indicating deviations of 4.3% and 6.27% from their respective benchmark averages.

Upon elevating the test voltage to 10V, the ECA-1EHG470 capacitor maintains an admirable impedance performance that remains closely aligned with benchmark values. At lower frequencies, such as 10Hz and 50Hz, the ECA-1EHG470 measures 308.8 and 65.78 Ohms, exhibiting deviations of 7.21% and 5.72% from their corresponding benchmark averages. Equally, at higher frequencies like 100kHz and 1MHz, the component registers values of 1.077 and 975.9m Ohms, representing a marginally closer proximity to benchmark averages, with discrepancies of only 3.54% and 3.58%, respectively.

In summary, the ECA-1EHG470 delivers exceptional impedance performance that remains consistently at par with the statistical benchmark. This performance evaluation serves as a valuable resource for engineers determining the capacitor's compatibility with their circuits. Stable impedance characteristics are essential for multiple applications like power supplies, filtering circuits, and energy storage systems, which require a high-performance aluminum electrolytic capacitor with the specified ratings.

Capacitance

The Panasonic ECA-1EHG470 capacitor has a nominal capacitance value of 47μF, featuring a tolerance of ±20%. This aluminum electrolytic capacitor is designed for a voltage rating of 25V. To assess its performance, capacitance values were compared with statistical benchmark data at varying test frequencies.

At a 1 Volt test frequency, the ECA-1EHG470 demonstrates varying performance levels. At lower frequencies, such as 5Hz, 10Hz, and 50Hz, the capacitor performs at or marginally below the average series capacitance. For instance, the capacitance measures 48.91μF at 5Hz, slightly below the 49.2μF benchmark average. A similar trend is observed at 10Hz, where the capacitance is 48.35μF, just below the 48.14μF benchmark average.

As the frequency increases, the ECA-1EHG470's capacitance values start to deviate further from the statistical benchmark average. It performs comparably better at frequencies below 10kHz. However, the observed decrease in capacitance values becomes significant at 20kHz and above. For example, at 20kHz, the capacitance measures 28.1μF, noticeably lower than the 35.09μF benchmark average. At a 100kHz frequency, the ECA-1EHG470's capacitance value is only around 41% of the benchmark's average capacitance.

Switching to a 10V test frequency yields slightly improved performance. The Panasonic ECA-1EHG470 exhibits above-average capacitance values for lower frequencies up to 100Hz, with the average incrementally increasing compared to the benchmark data. Nonetheless, capacitance values deviate significantly from the benchmark average at higher frequencies, starting from 200kHz. Remarkably, at 850kHz the ECA-1EHG470 demonstrates a capacitance value of 5.344μF, well above the 71.07μF benchmark average.

In summary, the Panasonic ECA-1EHG470 Aluminum Electrolytic Capacitor performs adequately for lower frequency applications below 10kHz, where its capacitance performance remains relatively stable and comparable to the statistical benchmark average. As the frequency increases, the performance declines, which could impact specific applications with higher frequency requirements. Consequently, engineers should meticulously evaluate the appropriateness of this capacitor for their circuits, particularly in the context of higher frequency applications, and consider alternative options in the market that may exhibit superior performance at these frequencies.

Series Resistance

Series resistance, also known as Equivalent Series Resistance (ESR), is an essential performance parameter when evaluating the effectiveness of capacitors such as the ECA-1EHG470, especially in applications requiring efficient energy transfer. It is typically measured at specific test frequencies and voltages to better understand its behavior under varying conditions.

Upon comparing the ECA-1EHG470 Capacitor's series resistance measured at a test voltage of 1 Volt against the standard benchmarks available, the performance is observed to be fairly close to the average. More importantly, it is significantly lower than the maximum benchmark at various test frequencies in the tested range. For instance, at a 5 kHz test frequency, the ECA-1EHG470 series resistance records 1.332 Ohms, which signifies better performance than the average benchmark value of 345.7m Ohms. Furthermore, at higher test frequencies such as 100 kHz, the capacitor's ESR is observed to be 1.14 Ohms, substantially lower than the maximum benchmark value of 4.499 Ohms. These results indicate that the ECA-1EHG470 Capacitor demonstrates satisfactory performance concerning the benchmark series resistance values at a 1 Volt test voltage.

When evaluated at a higher test voltage of 10 Volts, the ECA-1EHG470 Capacitor maintains satisfactory performance compared to the average statistical benchmark. As an example, at the 50 kHz test frequency when tested at 10 Volts, the capacitor's series resistance measures at 1.109 Ohms, outperforming the average benchmark value of 295.7m Ohms. However, on closer inspection, it becomes apparent that a comparison between the capacitor's ESR at 1 Volt and 10 Volts results reveals increased series resistance measurements at lower test frequencies, such as 5 kHz and 10 kHz. This observation can potentially translate into sub-optimal performance for applications that demand low series resistance at these lower frequencies.

Taking into account the test parameters and specific conditions, it becomes clear that the ECA-1EHG470 Capacitor exhibits reasonably good performance in terms of series resistance. It is vital to consider these parameters, along with other performance characteristics, when selecting capacitors for specific electronic applications, as they directly impact aspects such as efficiency, thermal management, and reliability.

Dissipation Factor and Quality Factor

The ECA-1EHG470 capacitor, manufactured by Panasonic, displays a dissipation factor that varies within a range of 0.033 at 5 Hz to a peak of 1.557 at 5 kHz when tested at 1 V. It is essential to recognize that this capacitor excels at lower frequencies, demonstrated by its low dissipation factor, while it experiences higher energy losses as frequencies increase. Simultaneously, the quality factor (Q), denoting capacitor performance, when tested at 1 V, starts at 30.40 at an operating frequency of 5 Hz and declines consistently across the frequency spectrum, culminating in its lowest Q value of 0.05 at 1 MHz.

Upon examining the same capacitor's performance characteristics at test frequencies of 10 V, the ECA-1EHG470 capacitor presents a dissipation factor range of 0.068 at 5 Hz to 7.707 at 75 kHz. Although it exceeds the benchmark significantly at lower frequencies, indicative of its superior performance, the capacitor displays higher energy losses at elevated frequencies. Under these testing conditions, the quality factor at 10 V drops from 14.59 at 5 Hz to a minimum of 0.03 at 900 kHz.

Considering the entire spectrum of capacitor performance characteristics, the ECA-1EHG470 exhibits lower energy losses when operating at lower frequencies. However, its performance deteriorates progressively as the frequencies increase. The capacitor showcases high Q values in the low-frequency range, but this declines towards the higher end of the spectrum, suggesting suboptimal performance in high-frequency applications. Notwithstanding this limitation, the ECA-1EHG470 capacitor may still prove to be a suitable, cost-effective choice for general-purpose applications and electronic designs with a primary focus on low-frequency operating conditions.

Comparative Analysis

Conclusion

In conclusion, the performance of the Panasonic Electronic Components ECA-1EHG470 aluminum electrolytic capacitor has been assessed in comparison to the provided statistical benchmark data for capacitors with the same value. At a test frequency ranging from 5Hz to 1MHz and test voltages of 1V and 10V, this capacitor demonstrated its performance across various parameters, including impedance, dissipation factor, quality factor, series resistance, and series capacitance.

Overall, the ECA-1EHG470 capacitor exhibits satisfactory performance when compared to the benchmark data. The capacitor impedance is within the average range at the majority of test frequencies, with slight deviations observed at higher frequencies. The dissipation factor of this capacitor is slightly higher than the benchmark average at lower frequencies, but remains within acceptable ranges. The quality factor of the ECA-1EHG470 is higher or on par with the benchmark data in most scenarios, signifying an efficient energy storage performance. However, in some cases, the quality factor drops significantly below the minimum benchmark values at high frequencies between 450kHz and 1MHz, especially at 10V test voltage.

In terms of series resistance, the ECA-1EHG470 performs consistently with the benchmark, while the series capacitance results follow the trends of the benchmark data without many deviations. This demonstrates that the capacitor's capacity to store electrical charge is consistent with comparable components in the market.

Taking all these points into account, the Panasonic ECA-1EHG470 aluminum electrolytic capacitor can be considered a viable option for engineers looking for capacitors within the given specifications for their products. The capacitor demonstrates consistent performance in several areas, but careful consideration should be given to the quality factor for applications involving high frequencies and high voltages.