Introduction

The performance of Murata Electronics' GRM155R70J105KA12J capacitor, a popular choice among electronics engineers, is a subject of interest especially when compared to the statistical benchmarks of similar components. This review aims to thoroughly analyze and scrutinize its performance based on the supplied data and juxtapose it against the benchmarks for capacitors with the same value. Notably, the GRM155R70J105KA12J is a Ceramic: X7R type capacitor with a nominal value of 1μ, a tolerance of ±10%, and a voltage rating of 6.3V.

In this introduction, we will present the pros and cons of the Murata GRM155R70J105KA12J capacitor. It is essential to approach the analysis with an open and professional mindset, acknowledging that poorly-performing capacitors will be reported as such. Our primary focus will be comparing the component data with the benchmark data, addressing electronics engineers who may be gauging the suitability of the component for their applications.

• Extensive range of test frequencies, providing valuable insights.
• Low impedance values at higher frequencies.
• Low dissipation factors, yielding better overall efficiency.
• High quality factors at certain test frequencies.
• Prominent manufacturer with a long-standing reputation.

• Series capacitance values fluctuate outside of the capacitor's tolerance range at certain test frequency intervals.
• Quality factor and series resistance performance suffer at lower frequency ranges.
• Potential improvements to high-frequency stability are warranted.

In the subsequent sections, we will delve deeper into the GRM155R70J105KA12J capacitor's performance under various electrical characteristics. These sections will provide an analytical and detailed examination of capacitance, series resistance, dissipation factor, and quality factor, ultimately resulting in a comprehensive comparative analysis against statistical benchmark data.

Impedance

At an early test frequency of 100 Hz, the GRM155R70J105KA12J capacitor exhibits an impedance value of 1.616k Ohms at 1 Volt. Comparing this value to the benchmark average impedance of 1.702k Ohms, the capacitor performs slightly better, being closer to the minimum value of 1.5k Ohms. This indicates a decent performance at low frequencies, which could be relevant to various application requirements.

As we move to higher frequencies, such as 5 kHz, the impedance of the GRM155R70J105KA12J capacitor increases to 41.04 Ohms at 1 Volt. This value is higher than the statistical benchmark's average impedance of 38.38 Ohms and even slightly higher than the benchmark's maximum value of 41.93 Ohms, indicating a less favorable performance at this increased frequency. The higher impedance at this frequency might impact the overall circuit performance negatively, depending on the application.

However, at 50 kHz, the GRM155R70J105KA12J capacitor registers an impedance of 6.165 Ohms at 1 Volt, which is just on the statistical benchmark maximum impedance value and far from the average impedance of 4.638 Ohms. This result implies potentially poorer performance in specific applications where lower impedance at this frequency is desirable, such as in high-speed or high-frequency circuits.

At the higher end of the frequency range, such as 1 MHz, the GRM155R70J105KA12J capacitor's impedance is raised to 375.4m Ohms at 1 Volt, which is significantly higher than the benchmark average impedance of 262.2m Ohms. In this case, the capacitor is closest to the benchmark maximum impedance value of 375.4m Ohms, indicating that it may not deliver optimal performance in demanding applications requiring low impedance values at the frequency of 1 MHz.

While the GRM155R70J105KA12J capacitor performs marginally better at low frequencies (e.g., 100 Hz), it struggles to outperform or match the statistical benchmark data within a higher frequency range, especially those above 5 kHz. Engineers should take these impedance data comparisons into account while assessing the applicability of this capacitor for their circuits since the right impedance values are critical for achieving the desired performance in specific applications.

Capacitance

At the test frequency of 1 kHz, the Murata Electronics GRM155R70J105KA12J component presents a series capacitance of 938.3nF. This value is 2.3% above the average benchmark capacitance of 916.6nF at the same frequency. The capacitor also exhibits a slightly better capacitance performance in the lower frequency ranges (below 50 kHz), recording higher scores than both minimum and maximum benchmark values. For example, at 5 kHz, the GRM155R70J105KA12J has a series capacitance of 778nF, while the benchmark ranges from 759.2nF to 960.3nF. This trend continues up to 50 kHz, where the component reaches a capacitance value of 514.6nF, compared to the benchmark range of 496nF to 896nF. When operating at higher frequencies, the capacitor’s performance is more closely aligned with the statistical benchmark.

Considering measurements at the rated voltage of 6.3V, the capacitor's performance exhibits some variance when compared to the 1V test condition. At 1 kHz and 6.3V, the capacitor records a series capacitance of 879.7nF, which is 4% lower than the measured value of 938.3nF at 1 kHz and 1V. However, the component performs significantly better in a certain voltage and frequency: at 5 kHz and 6.3V, as it achieves a series capacitance of 1.178μF, greatly exceeding the benchmark range of 759.2nF to 960.3nF in this frequency at 1V. One possible explanation for this behavior could be the dependency of capacitance values on the applied voltage, as well as its dielectric and construction material properties.

Overall, the GRM155R70J105KA12J by Murata Electronics shows good stability and adequate capacitance performance across a variety of operating conditions, making it a suitable choice for many applications that require precision and reliability in the capacitance range it covers.

Series Resistance

In this section, we will analyze the performance of the Murata Electronics GRM155R70J105KA12J capacitor in terms of its Equivalent Series Resistance (ESR), which represents the resistive losses in the capacitor's operation, and compare it to the provided statistical benchmark data of components with the same value.

At an applied voltage of 1 volt, the component exhibits a maximum series resistance of 2.648k ohms at 5Hz, which is consistently higher than the statistical benchmark's maximum ESR across all test frequencies. The higher ESR value can be observed across other test frequencies as well, such as 1.333k ohms at 10Hz, 278.5 ohms at 50Hz, and 144.4 ohms at 100Hz. Furthermore, as we move to higher frequencies, this value declines gradually. It is important to note that lower ESR values are generally desirable. However, at 50k, 75k, and 100k test frequency points, the component's ESR still stays well above the benchmark values, specifically at 322.3m ohms, 145.3m ohms, and 68.29m ohms, respectively.

Additionally, under the influence of 6.3 volts, the component's ESR values continue to depict higher-than-benchmark series resistance compared to the statistical data. The most noticeable difference can be seen at the 5kHz test frequency, where the capacitor records 3.099 ohms, significantly surpassing the statistical benchmark maximum of 1.937 ohms. At higher frequencies like 50k and 75k, the component also showcases higher ESR, with respective values of 545.3m ohms and 341.7m ohms against the benchmark's lowest value of 322.3m ohms and 145.3m ohms.

Overall, the Murata Electronics GRM155R70J105KA12J capacitor exhibits higher ESR than the statistical benchmark across both applied voltages of 1 volt and 6.3 volts, covering all testing frequencies. High ESR can lead to higher losses and heat generation in the capacitor, which might affect the overall efficiency and performance of the circuit. Considering your design requirements, alternative capacitors with lower ESR might be more suitable if that parameter is crucial for your application.

Dissipation Factor and Quality Factor

At a test voltage of 1V, when comparing the Dissipation Factor (Df) of the GRM155R70J105KA12J capacitor with the benchmark data, we notice that it has a low Df range from 0.085 at 5 Hz to 0.104 at 1 kHz. These values indicate minimized energy losses, which is a favorable aspect. As the frequency increases, its Df improves significantly, reaching as low as 0.001 at 150 kHz, signifying even better energy efficiency at higher frequencies.

The Quality Factor (Q) of the GRM155R70J105KA12J capacitor demonstrates an upward trend with the increase in frequency. It starts at 11.80 at 5 Hz and achieves an impressive value of 725.99 at 150 kHz. A higher Q factor indicates less energy loss, better stability, and enhanced efficiency, making the component perform well under various frequency conditions.

When evaluating the capacitor at its voltage rating of 6.3V, the GRM155R70J105KA12J features even better Dissipation Factor performance, with a Df ranging from 0.055 at 5 Hz to 0.093 at 1 kHz. As the test frequency increases, the Df decreases further, reaching a minimum of 0.026 at 200 kHz. Lower Df values at higher voltages imply enhanced electrical performance under an increased operating voltage.

In terms of Quality Factor, the component improves its performance at higher voltages, starting from 18.32 at 5 Hz and reaching a remarkable 37.66 at 200 kHz. These Q factor results suggest efficient and reliable performance throughout the frequency range when operating at higher voltage levels. Moreover, these characteristics contribute to lower energy consumption, extended device lifetime, and improved overall performance in electronic circuits.

Comparative Analysis

Conclusion

The GRM155R70J105KA12J capacitor from Murata Electronics thoroughly analyzed against a statistical benchmark. Overall, this capacitor is an optimal choice for certain applications but may not be the best choice for all scenarios.

At lower frequencies, such as 5kHz to 50kHz, the GRM155R70J105KA12J dissipates most energy with a higher dissipation factor ranging from 0.12 to 0.085, compared to the benchmark data. It outperforms the benchmark average in regard to the quality factor and impedance at higher test frequencies (150kHz to 1MHz). These readings make it suitable for implementing in high-frequency applications where energy inefficiencies and losses are more critical to the system's performance.

However, when comparing the GRM155R70J105KA12J Capacitor's capacitance values, its performance is typically below the average benchmark values for most frequencies. This deviation becomes increasingly apparent at higher frequencies above 50kHz, which may affect its suitability for certain applications.

In summary, the GRM155R70J105KA12J Capacitor performs significantly well for high-frequency applications but may not be the ideal solution for scenarios needing closer alignment to the benchmark average in terms of capacitance values. Engineers should consider these factors before selecting this component as a suitable candidate for optimal performance in their applications.