Recently I came across the YAGEO KEMET R413F110050D0KV234 capacitor which is part of the R41D-V234 family. This is a new product to DigiKey and I was curious what made it special (See Figure 1).
Key Takeaways
- The R41D and R41D-V234 have very similar specifications. The V234 series extends the R41D with higher current capability.
- The R41D-V234 series is a good match for SiC and GaN applications.
- As always, look deeper into the datasheet as the tabular data does not always tell the full story.
- The secrets are whispering in the characteristic curves. The featured capacitor has a 40% higher current handling capability at 100 kHz.
Author: Aaron Dahlen | MSEE | Senior Applications Engineer, DigiKey
Last update: 19 Aug 2026
Figure 1: Image of the KEMET R413F110050D0KV234 with the New Product banner.
Initial Discovery
- As of 18 Aug 26, DigiKey offered a surprising number of related capacitors. In total, there were 14 unique line items that matched a highly specific parametric search including KEMET polypropylene, X1, Y2, AEC-Q200, 1000 pF, 10%, 300 VAC, with 10 mm lead spacing.
- We will focus on the R41D-V234, R41D, R41P, and R41 series.
- The parts are very close in cost when purchased in quantities of 1000. The top to bottom cost is separated by a few pennies.
Tech Tip: DigiKey parametric tools include a unit-price feature as shown in Figure 2. In this example, we are viewing individual capacitor cost when purchased in quantities of 1,000.
Figure 2: Use of the DigiKey parametric tool to select price based on purchase quantity.
Analysis
Cost is important but does not appear to be a strong differentiator. Instead, we dig into the datasheet to discover the family relationship between R41D-V234, R41D, R41P, and R41.
Operating Temperature
The R41 family is rated for -40°C ~ 110°C while the R41D-V234, R41D, and R41P families are rated at -40°C ~ 125°C. This eliminates the R41 family from further comparison.
Dissipation Factor
The 10 mm pitch R41P has a higher dissipation factor of 1.5% at 1 kHz when compared to 0.8% at 1 kHz for the R41D-V234 and R41D. Recall that dissipation factor is associated with self-heating. All things being equal, a lower number is preferable as it implies a cooler-running capacitor due to reduced self-heating. Refer to this article to learn how dissipation factor is measured.
Operational Specifications
The specifications for the remaining R41D-V234 and R41D families are nearly identical. They were so close that I started looking beyond the datasheet to find the distinction. I found the relationship spelled out in a YAGEO sales resource:
Based on the proven R41D high dV/dt platform, the V234 c-spec extension significantly improves ripple current capability, enabling designers to handle the faster switching speeds and higher transient currents generated by SiC and GaN devices.
Complication
At times, I’m misled by the tabular datasheet specifications. As an example, consider dissipation factor which is specified at a single frequency. In this case, the 1 kHz metric is good for taxonomy but insufficient for an operational circuit with harmonics extending into the MHz range.
The actual distinction between the R41D-V234 and R41D is shown in Figure 3 as a family of curves showing the relationship between maximum current and frequency. Figure 3 (left) shows the curves for the R41D family. Consider the current for our 1000 pF capacitor at 100 kHz. Look closely at the current scales for something I initially missed.
- R41D ≈ 0.09 A
- R41D-V234 ≈ 0.13 A
I suspect the engineering and manufacturing teams were elated to squeeze this 40% performance improvement out of the capacitor.
Figure 3: Comparison of maximum current for R41D (left) and R41D-V234 (right).
Parting Thoughts
This was a fun exercise. The next time you see a new part, get down into the weeds and discover why it exists and what niche it is trying to fill. You may be surprised where it leads you. In this case, the hard lesson is don’t assume the data is in the datasheet’s parametric tables.
Sincerely,
APDahlen
About This Author
Aaron Dahlen, LCDR USCG (Ret.), is a Senior Applications Engineer at DigiKey in Thief River Falls. His background in electronics and industrial automation was shaped by a 27-year military career as both technician and engineer, followed by over a decade of teaching.
Dahlen holds an MSEE from Minnesota State University, Mankato. He has taught in an ABET-accredited electrical engineering program, served as coordinator of an electronic engineering technology program, and instructed military technicians in component-level repair.
Today, he has returned to his home in northern Minnesota, completing a decades-long journey that began with a search for capacitors. Read his story here.