8 min Readtime
Published Aug 11, 2025
Selecting the right capacitor is crucial for ensuring stable performance and long-term reliability, especially in 105℃ environments. Our SMD aluminum electrolytic capacitors cover a full range of operating lifespans from 2000 to 7000 hours, designed to meet different application needs. For standard use, AXT & ART provide a 2000-hour lifespan suitable for general circuits. For extended operation, AKL offers 3000–5000 hours of durability. Power circuits benefit from the low impedance ARZ & ARX series (2000h) and ultra-low impedance AFZ series (2000–5000h), which deliver superior ESR performance. When handling higher voltages, AVD ensures stability and durability, while AJZ, with its 7000-hour rating, is built for extreme and long-term applications.
However, many engineers often ask: “Do we really need a 5000-hour capacitor?” In reality, not every project requires the longest lifespan. For example, in LED drivers, chargers, or consumer electronics, typical product lifespans are only 1–3 years, and operating temperatures rarely approach 105℃. A 2000h @105℃ capacitor, when used at lower temperatures such as 45℃, can easily achieve an equivalent lifespan of over 10,000 hours—more than sufficient for these applications. This is because capacitor life increases exponentially as temperature decreases.
The key to choosing the right capacitor is matching, not maxing out. A 5000-hour capacitor may offer higher endurance, but it also comes with higher cost and may be over-specified for many designs. A 2000-hour capacitor, properly selected for the operating conditions, is often the most cost-effective and reliable choice. In short, the best capacitor isn’t necessarily the most expensive one—it’s the one that fits your application perfectly.
