The "load life" and general "service life" of SMD aluminum electrolytic capacitors are related but differ in focus, with core distinctions in test conditions, application scenarios, and definition scope. Here are the details:
It is a standard test indicator in the capacitor industry, referring to the maximum time that a capacitor can maintain its performance parameters (such as capacitance, dissipation factor, leakage current, etc.) within specified ranges when continuously loaded (i.e., working normally) under rated voltage and rated temperature (usually the maximum operating temperature, such as 105℃, 85℃, etc.).
For example, the common "2000 hours at 105℃" load life means that after working continuously for 2000 hours in a 105℃ environment, the key parameters of the capacitor still meet the specifications (e.g., capacitance attenuation does not exceed 20%).
The test is conducted in an accelerated aging environment to quickly evaluate the capacitor's durability, serving as a standardized indicator provided by manufacturers.
It refers to the total time from the start of use until the capacitor's performance deteriorates to a level that cannot meet the circuit requirements (e.g., significant capacity drop, excessive leakage current leading to failure) in actual application scenarios.
The actual service life is affected by various factors, including operating temperature (much lower than the rated maximum temperature), actual working voltage (usually lower than the rated voltage), ripple current, vibration, humidity, and other environmental conditions. Therefore, it is much longer than the load life.
- Load life is the result of laboratory accelerated tests, representing the manufacturer's guarantee of the capacitor's durability under extreme rated conditions. It is used to compare the anti-aging capabilities of different capacitors (e.g., Capacitor A has a load life of 2000 hours at 105℃, while Capacitor B has 5000 hours at 105℃; thus, B has a longer load life and theoretically better durability).
- Actual service life is the lifespan in real scenarios, which needs to be calculated based on the load life and actual working conditions (especially temperature) using formulas (such as the empirical rule that "life doubles for every 10℃ decrease in temperature").
For example, a capacitor with a load life of 2000 hours at 105℃, if operating at an actual temperature of 65℃ (40℃ lower than 105℃), its theoretical life can be extended to 2000×2⁴ = 32,000 hours (about 3.6 years). If the temperature is lower, the life will be even longer.
- Load life is a standardized "durability indicator under extreme conditions," used for product specification comparison and quality evaluation;
- Actual service life is the survival time of the capacitor in real applications, determined by both the load life and the actual working environment, and is usually much longer than the load life.
In simple terms: Load life is the "official minimum guarantee under extreme conditions," while actual service life is "how long the capacitor can really last based on your usage environment."
UF capacitors product lineup boasts an impressive range of SMD Aluminum Electrolytic Capacitors, each tailored to cater to unique requirements. Here's a glimpse of the series we offer:
TCS SMD Aluminum Electrolytic Capacitor 85°C
TCK SMD Aluminum Electrolytic Capacitor 105°C
TLZ SMD Aluminum Electrolytic Capacitor Low impedance
TKZ SMD Aluminum Electrolytic Capacitor Extremely Low Impedance
TFZ SMD Aluminum Electrolytic Capacitor Extremely Low Impedance Long life
TCP SMD Aluminum Electrolytic Capacitor High Voltage Long life 85°C 3000H
TCH SMD Aluminum Electrolytic Capacitor High Voltage Long Life 105°C 3000H
THU SMD Aluminum Electrolytic Capacitor High Voltage Long Life 105°C 5000H
TKH SMD Aluminum Electrolytic Capacitor High Temperature 125°C
TEL SMD Aluminum Electrolytic Capacitor Long life Assurance 3000H
TKL SMD Aluminum Electrolytic Capacitor Long life Assurance 5000H
TSC SMD Aluminum Electrolytic Capacitor Low Leakage Current
TCN SMD Aluminum Electrolytic Capacitor Non Polarized 85°C
TKP SMD Aluminum Electrolytic Capacitor Non Polarized 105°C
Welcome to visit our website: https://www.ufcapacitors.com/ and send RFQ to connie@topdiode.hk for quotation in free.
#SMD_aluminum_electrolytic_capacitors
UF capacitors cross guide:
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Description |
UF Capacitors |
#Rubycon |
#Nichicon |
#Samwha |
#Panasonic |
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TCS 85C V-Chip Aluminum Electrolytic |
#SEV Series |
#UWX Series |
#SC Series |
#EEE-X(A)S Series |
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TCK 105C V-Chip Aluminum Electrolytic |
#SKV Series |
#UWT Series |
#RC Series |
#EEEHA Series |
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TFZ 105C 2000-5000 long life with extra lower impedance Aluminum Electrolytic |
#TZV Series |
#UUD Series |
#CM Series |
#EEE-FK Series |
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TLZ 105C 1000-2000h |
#SZV Series |
#UCL Series |
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#EEE-FC Series |
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TMA 105C 2000h conductive polymer aluminum solid Aluminum Electrolytic |
#PAV Series |
#CV Series |
#FA Series |
#SVPE Series |
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TMB Series 105C 2000h conductive polymer aluminum solid Aluminum Electrolytic |
PAV Series |
#CV Series |
#FA Series |
#SVPC Series |
