Introduction

When it comes to evaluating capacitors for critical applications, every detail matters. The NOJA476M004RWJ, manufactured by KYOCERA AVX, is a Niobium Oxide Capacitor boasting a nominal value of 47μ and a tolerance of ±20%. With a voltage rating of 4V, it is designed to be surface-mounted on a 1206 (3216 Metric) package. In this review, we provide an in-depth analysis of this capacitor's performance compared to a statistical benchmark formed from other components of the same value, enabling electronics engineers to make informed decisions about their applicability in their circuits.

To provide an accurate and profound assessment, we have incorporated multiple comparison points, including LCR measurements at 1 Volt and 4 Volts covering various test frequencies. Our findings are organized in a detailed comparative analysis featuring essential aspects such as capacitance, series resistance, dissipation factor, and quality factor.

Let's examine the pros and cons of KYOCERA AVX's NOJA476M004RWJ Capacitor:

• Pros:
  • Wide range of test frequencies: The NOJA476M004RWJ provides an extensive range of test frequencies which increases its adaptability for multiple applications.
  • Low impedance at higher test frequencies: When operating at test frequencies above 50kHz, this capacitor exhibits lower impedance values compared to the statistical benchmark.
  • Stable series capacitance values: The component presents a stable trend in series capacitance across the test frequencies, indicating consistent performance across various applications.
• Cons:
  • Higher dissipation factors at lower test frequencies: The NOJA476M004RWJ exhibits relatively higher dissipation factors when operated at lower test frequencies (below 50kHz), which may impact the component's overall efficiency.
  • Lower quality factor: When compared to the statistical benchmark, this capacitor demonstrates a lower quality factor, especially at low test frequencies.
  • Varied performance with voltage changes: The component's performance traits differ significantly when LCR measurements are performed at 1 Volt and 4 Volts, suggesting possible challenges in adapting to voltage fluctuations within a circuit.

Keep reading for a comprehensive analysis of the NOJA476M004RWJ's specifications, including its capacitance, series resistance, dissipation factor, and quality factor, as well as the compelling comparative analysis with the statistical benchmark data.

Impedance

Impedance performance analysis for components like the KYOCERA AVX NOJA476M004RWJ Capacitor requires a comparison against a carefully selected statistical benchmark, which best represents similar capacitors in terms of specifications and applications. This examination enables a comprehensive understanding of the capacitor's capabilities and limitations.

At 1 Volt, the impedance of the NOJA476M004RWJ Capacitor differs from the statistical benchmark data at specific frequency ranges. Notably, at frequencies between 10 Hz and 50 Hz, the component exhibits lower impedance, with values of 308.6 Ohms and 69.75 Ohms, respectively. These values are marginally lower than the average impedance at these frequencies (332.8 Ohms and 69.54 Ohms) compared to the benchmark.

At higher frequencies, the NOJA476M004RWJ Capacitor displays a range of impedance results within the minimum and maximum values of the statistical benchmark. At 50 kHz and 100 kHz, the component's impedance readings are 948.2m Ohms and 862.4m Ohms, respectively. These measurements fall between the minimum (69.87m Ohms, 35.77m Ohms) and maximum (3.55 Ohms, 4.5 Ohms) impedance values of the benchmark.

Impedance measurements taken at 4 Volts also exhibit variances in performance subjected to the benchmark. Some frequencies showcase commendable impedance values, such as 50 Hz (56.4 Ohms) and 100 Hz (33.22 Ohms), while other frequencies demonstrate higher values, deviating from their respective benchmark averages.

When evaluating the KYOCERA AVX NOJA476M004RWJ Capacitor for specific applications, it is crucial to consider these impedance performance comparisons. While the component may have lower impedance performance than the benchmark in some cases, it demonstrates superior performance in other conditions involving specific frequencies. These factors are fundamental to account for when making a decision on whether this capacitor is an optimal choice in terms of impedance performance, contributing to a more profound understanding of the component's capabilities in fulfilling the desired design requirements and goals.

Capacitance

In this section, we delve profoundly into the impressive capacitance performance of the KYOCERA AVX NOJA476M004RWJ Niobium Oxide Capacitor and examine how it compares to the provided statistical benchmark data. This capacitor stands out, boasting a nominal capacitance value of 47μF with a tolerance of ±20%, and a voltage rating of 4V, making it a reliable and versatile solution for a wide array of applications.

Starting with lower test frequencies, specifically at 5 Hz and an applied voltage of 1V, the capacitance of this component reaches an exceptional value of 69.99μF. This remarkable result is notably higher than the maximum value observed in the benchmark data (69.99μF), showcasing its exceptional performance. As we progress through the test frequencies, the capacitance values present an unwavering ability to surpass the average of the benchmark data. For instance, at 100 Hz, the NOJA476M004RWJ proudly holds a capacitance of 44.81μF, aligning closely to the benchmark average of 44.55μF.

Transitioning to the higher test frequency range, this particular capacitor demonstrates a slight shift in its performance profile compared to the benchmark data, exhibiting its multifaceted characteristics. While it consistently maintains capacitance values above benchmark minimums, certain test frequencies, such as 20 kHz, reveal a pronounced deviation from the average (21.14μF for the component compared to 35.09μF of the benchmark average). This insight highlights the capacitor's dynamic response under varying conditions.

Exploring the effects of a higher applied voltage, specifically 4V, the NOJA476M004RWJ exhibits an astounding capacitance of 629.5μF at 5 Hz. This prodigious value significantly surpasses the capacitance levels seen in the benchmark data at 1V, demonstrating the component's proficient adaptability. Nevertheless, as the test frequencies increase, the 4V scenario's capacitance values mirror the performance trends observed in the 1V scenario when juxtaposed with the statistical benchmark measurements, offering a comprehensive insight into this capacitor's competence under diverse circumstances.

Series Resistance

The equivalent series resistance (ESR) plays an indispensable role in the analysis of the KYOCERA AVX NOJA476M004RWJ Niobium Oxide Capacitor. To gain a comprehensive understanding of its performance, it is crucial to explore the ESR values at various test frequencies, including those at two distinct voltage levels: 1 Volt and 4 Volts, since the capacitor's behavior depends on the voltage applied.

Methodical assessment of the data unveils that, at an initial glance, lower test frequencies of 5 Hz and 10 Hz reveal noticeably higher ESR values (282.8 Ohms and 94.29 Ohms, respectively) at 1V when compared to the statistical benchmarks. This implies that this particular capacitor might demonstrate less competitive performance in applications demanding lower frequency ranges. However, as the test frequency escalates, the ESR values exhibit a significant decline. Impressively, the capacitor surpasses the benchmarks within the frequency range of 100 Hz to 20 kHz at 1 Volt and extends its superior performance up to 600 kHz at 4 Volts. This characteristic emphasizes the optimal proficiencies of the capacitor in the mid-to-high frequency spectrum, where it demonstrates lower ESR values compared to average performance standards.

On the other hand, it warrants mention that the capacitor's ESR values tend to rise at higher frequencies beyond 600 kHz. Consequently, its performance becomes slightly inferior compared to the statistical benchmarks. Regardless, these values are not critically higher and could still be deemed compatible for a multitude of applications, depending on the specific design requirements and operating conditions.

Overall, the KYOCERA AVX NOJA476M004RWJ Niobium Oxide Capacitor flaunts a compelling performance in terms of lower ESR values across the mid-to-high frequency range when juxtaposed with benchmark comparisons. This capacitor might not emerge as the prime choice for applications involving extremely low or high frequencies. However, it remains an attractive option for design engineers seeking reliable capacitors within the voltage range of 1 to 4 Volts and frequency range of 100 Hz to 600 kHz.

Dissipation Factor and Quality Factor

The NOJA476M004RWJ capacitor's dissipation factor (Df) and quality factor (Q) reveal insightful information about its performance under different frequencies and voltage conditions. In an analysis of low-frequency and low-voltage conditions (5 kHz, 1 Volt), the capacitor presents a high Df value of 0.626. This initially less favorable result is relatively higher compared to the benchmark. Nevertheless, at higher frequencies such as 50 kHz, the component's Df undergoes a substantial reduction, resulting in a much-improved value of 0.055. The capacitor also maintains its low Df performance (0.073) at 100 kHz. However, it is crucial to note that beyond 100 kHz, the Df values start to escalate. As a result, the Quality Factor (Q) attains encouraging values of 18.17 at 50 kHz and 13.65 at 100 kHz, surpassing the benchmark averages for these specific frequency ranges.

To further scrutinize the capacitor's performance, we elevate the testing voltage to 4 Volts. Under these conditions, the NOJA476M004RWJ capacitor displays remarkable results at specific frequencies compared to the benchmark. At 50 kHz, the Df value diminishes to an impressive 0.396 while achieving a high Q of 2.53. Likewise, at 100 kHz, the Df declines to a noteworthy 0.220, and the Q reaches a satisfactory level of 4.54. These findings indicate that the NOJA476M004RWJ capacitor exhibits a stable performance in relation to the dissipation factor and quality factor within different input voltage conditions up to 100 kHz. This data provides valuable insights into the capacitor's overall efficiency and power loss, helping to better understand its suitability for diverse application scenarios demanding varying performance requirements.

Comparative Analysis

Conclusion

The KYOCERA AVX NOJA476M004RWJ capacitor, featuring a Niobium Oxide composition, showcases mixed performance when compared to the provided statistical benchmark data. In this analysis, we assess its applicability for electronic engineers considering this component in their circuit designs.

At the lower frequency range (5 Hz to 100 Hz), the NOJA476M004RWJ capacitor typically displays slightly higher impedance values when compared to the benchmark. Despite these higher impedance values, the capacitor maintains a generally lower dissipation factor within this range, illustrating its potential for reduced power dissipation. In higher frequency ranges (50 kHz to 1 MHz), the capacitor's impedance stays marginally below the benchmark average while its dissipation factor values tend to be higher, indicating an increase in energy loss.

Regarding the capacitor's quality factor, it shows considerable variations across the tested frequency range. The values are somewhat lower than the benchmark averages for most frequencies, signaling potential limitations in the resonance performance of the component. The series resistance values of the NOJA476M004RWJ capacitor are also observed to be higher than the benchmark across several frequencies, showcasing its increased resistive loss characteristics.

In conclusion, the KYOCERA AVX NOJA476M004RWJ capacitor possesses certain benefits for engineers seeking a component with reduced impedance and power dissipation at lower frequencies. However, increased energy losses and resistive characteristics at higher frequencies and the overall lower quality factor values demand careful consideration of its applicability in circuit designs. Engineers must factor in these attributes when evaluating the NOJA476M004RWJ capacitor for optimal performance in their intended applications.