Introduction

In this technical review, we will analyse the performance of Susumu's KRL1220E-M-R100-F-T5, a 100 mΩ Metal Foil Resistor, and compare it with a statistical benchmark formed from other components of the same value. This resistor is designed for surface mounting and comes with a package size of 0805 (2012 Metric). Our objective is to provide a comprehensive understanding of this resistor's characteristics, including its pros and cons, in order to assist qualified engineers in evaluating it for their circuit designs.

Utilizing the supplied data, we scrutinize the KRL1220E-M-R100-F-T5 and juxtapose its performance with that of the statistical benchmark data. The purpose of this analysis is to determine how closely the component adheres to the nominal value and how its performance fares against the benchmark.

Pros:

• Resistor produced by a reputable manufacturer, Susumu
• Metal foil composition enables highly stable and accurate resistor characteristics
• Tight tolerance (±1%)
• Consistent Series Resistance values

Cons:

• Slightly fluctuating Inductance values observed across test frequencies
• Inconsistent Dissipation Factor values at higher test frequencies with 10 volts
• Not all data available at higher test frequencies, especially for the 750k to 1M range

Impedance

The KRL1220E-M-R100-F-T5 has a well-defined impedance performance over the entire frequency range when tested at 1 Volt. Its impedance remains relatively stable and falls within the expected benchmark values. At a frequency of 5 kHz, the minimum impedance registers at 99.02m Ohm, which is substantially higher than the reference benchmark of 91.73m Ohm. It's worth mentioning that the variation in impedance, as the frequency increases, is quite minimal. For example, at a frequency of 550 kHz, the impedance measures at 99.42m Ohm, which is barely higher than the 99.14m Ohm recorded at 1 kHz. This characteristic of impedance stability is crucial for various applications and indicates excellent performance at different frequencies.

When examining the impedance measurements at 10 Volts, the KRL1220E-M-R100-F-T5 exhibits interesting behavior compared to the statistical benchmark. In the lower frequency range from 5 kHz to 100 kHz, the impedance remains slightly lower than the respective frequency benchmark values. However, at a frequency of 200 kHz, the trend changes with an impedance of 89.01m Ohm, which is below the maximum benchmark of 111.3m Ohm. The impedance continues to increase from there, reaching a value of 97m Ohm at 700 kHz. This performance signifies the resistor's capability to operate efficiently within a wider voltage range.

Understanding the impedance characteristics of a resistor such as KRL1220E-M-R100-F-T5 is vital for designing electronic circuits that require precise impedance control and stability. The observed stability and performance across different voltages and frequencies make it a suitable option for applications that require accurate and reliable impedance management, such as filters, matching networks, and power supply decoupling.

Resistance

In this section, we examine the KRL1220E-M-R100-F-T5 Resistor by Susumu, which possesses a nominal value of 100m Ohms ±1%. To thoroughly evaluate its performance, we will contrast its resistance data with the statistical benchmark data at 1 Volt and 10 Volts obtained from similar components.

First, let's delve into the series resistance measurements at 1 Volt. It becomes apparent that the KRL1220E-M-R100-F-T5 Resistor frequently displays higher resistance values than the statistical benchmark. For example, at a test frequency of 5 Hz, the measured series resistance for the Susumu Resistor is 99.02m Ohms, while the average value of the statistical benchmark is 91.71m Ohms. This notable trend is visible across a spectrum of test frequencies, such as at 50 Hz (99.2m Ohms for Susumu and 92.09m Ohms for the benchmark) and 100 kHz (99.2m Ohms for Susumu and 92.28m Ohms for the benchmark).

On the contrary, the series resistance measurements at 10 Volts reveal an opposite trend. The KRL1220E-M-R100-F-T5 Resistor exhibits superior performance compared to the statistical benchmark. For instance, at 50 kHz, the Susumu Resistor registers a series resistance of 90.94m Ohms, as opposed to the statistical benchmark's average series resistance of 92.15m Ohms. Similarly, at 200 kHz, the Susumu Resistor records a series resistance of 88.83m Ohms, in contrast to the statistical benchmark's average of 92.47m Ohms.

The Susumu KRL1220E-M-R100-F-T5 Resistor presents a mixed performance profile when juxtaposed with the statistical benchmark. Upon examining its resistance data, engineers may find the resistor more suited for applications that demand a lower series resistance when tested at 10 Volts. It is essential to understand the specific requirements of the intended application to make an informed decision when selecting components like resistors for optimal functionality and performance.

Inductance

In this section, we will examine the inductance characteristics of the Susumu KRL1220E-M-R100-F-T5 Metal Foil Resistor. To evaluate its performance, we will compare the measurements with a statistical benchmark formed from other components of the same value, providing a comprehensive comparison of this resistor's inductance against similar components.

When observing the LCR measurements at 1 Volt, we can see that the inductance values of the Susumu Resistor tend to be closer to the average values of the statistical benchmark across most of the frequency range. For instance, at 5 Hz, the KRL1220E-M-R100-F-T5 Resistor's inductance measures at 3.685μH, which is slightly higher than the statistical benchmark's average value of 3.411μH, but still falls comfortably within the range between the minimum and maximum values (1.638μH and 5.906μH, respectively).

Similar behavior is observed at 1kHz, where the Resistor's inductance measures at 2.429nH, adjacent to the statistical benchmark's average value of 8.074nH. This trend is consistent until frequencies reach 700kHz and above, where Susumu's Resistor's inductance values become considerably higher than the statistical benchmark's averages. This implies increased inductive characteristics at higher frequencies compared to other similar components.

When examining the LCR measurements taken at 10 Volts, there is limited data available for comparison within the statistical benchmark. Despite the limited data, the inductance values of the Susumu Resistor do not exhibit significant deviation between the 1V and 10V scenarios. However, some prominence is seen in the increase of inductance at specific frequencies, such as 5 Hz (from 3.685μH to 92μH) and 50 Hz (from 338.5nH to 8.339μH). Due to the lack of data for the 10V scenario in the statistical benchmark, a comprehensive conclusion regarding the resistor's high-voltage inductance performance is limited.

Overall, the Susumu KRL1220E-M-R100-F-T5 Metal Foil Resistor's inductance characteristics consistently follow the statistical benchmark's average values throughout most of the frequency range. Its inductive behavior becomes more pronounced at higher frequencies, demonstrating increased inductance that may impact high-frequency applications. Engineers assessing this resistor for appropriateness in their circuits should consider this behavior, especially in high-frequency applications, where precise control over inductance is essential.

Comparative Analysis

The Susumu KRL1220E-M-R100-F-T5 is a metal foil resistor with a nominal value of 100m, ±1% tolerance, and surface mount package (0805). In this comparative analysis, we evaluate the observed test data for the KRL1220E-M-R100-F-T5 resistor against the aggregated statistical benchmark to provide a better understanding of its performance and suitability for specific circuit applications.

On average, the Susumu KRL1220E-M-R100-F-T5 displayed higher impedances when voltage measurements were taken at 1V and 10V across most test frequencies compared to the average impedance benchmarks. These differences are potentially significant for engineers assessing the possible impact of higher impedance values on their circuit performance. Quality Factor data was sparse, with results available only on the 10V measurements, while the benchmark data showed no significant Quality Factor disparity over various test frequencies.

Comparing series resistance between the KRL1220E-M-R100-F-T5 resistor and the benchmark data, we observed that this component maintains similar resistance values across the test frequencies when operating at 1V. Notably, the KRL1220E-M-R100-F-T5 resistor exhibited higher series resistance values at some frequencies when operating at 10V, especially at the lower end of the frequency spectrum.

In terms of series inductance, the KRL1220E-M-R100-F-T5 resistor showcased comparable inductance values when compared to the average benchmark across various test frequencies for both 1V and 10V measurements. This perceived similarity suggests minor implications on circuit performance due to the series inductance of this resistor.

Series capacitance measurements were sparse for the KRL1220E-M-R100-F-T5 resistor, while the benchmark data exhibited a consistent trend across test frequencies. This lack of data could impact the ability to make a comprehensive evaluation on this aspect of the resistor's performance. Despite this limitation, at the frequency of 1kHz, the series capacitance measured at 1V for the KRL1220E-M-R100-F-T5 was comparable to the average benchmark value.

In conclusion, the Susumu KRL1220E-M-R100-F-T5 resistor demonstrated higher impedances and series resistance values at specific test frequencies compared to the statistical benchmark formed from other components of the same value. The component maintained comparable series inductance across test frequencies. However, the limited availability of Quality Factor and series capacitance measurements necessitates further analysis on these aspects of performance. When selecting a resistor for specific circuit applications, it is essential for engineers to be mindful of these performance characteristics and consider how they may impact their design requirements.

Conclusion

In conclusion, our review of the Susumu KRL1220E-M-R100-F-T5 Resistor reveals that its performance is quite impressive when benchmarked against other components of the same value. The Susumu Resistor managed to achieve reasonably good values of impedance, resistance, inductance, and quality factors, despite being outperformed on some test frequencies and parameters. This analysis will be helpful for electronics engineers in assessing the applicability of this Resistor in their circuits.

One observation worth noting is that the Metal Foil composition of the component provided stable characteristics throughout various test frequencies at 1 Volt and 10 Volts. The surface mount package, 0805 (2012 Metric), further contributes to its suitability for various applications requiring precision and stability.

In summary, while the Susumu KRL1220E-M-R100-F-T5 Resistor does not outperform the statistical benchmark data in all aspects, it still demonstrates reasonable performance across a wide range of test frequencies and parameters. Overall, this Resistor can be considered a reliable and worthy choice for electronics engineers and designers to incorporate into their projects.