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ECEA1HE0R1M

更新时间： 2023-05-15 00:00:00
品牌 Logo 应用领域
松下 - PANASONIC /
页数 文件大小 规格书
8页 325K
描述
CAPACITOR, ALUMINUM ELECTROLYTIC, NON SOLID, POLARIZED, 50V, 0.1uF, THROUGH HOLE MOUNT, RADIAL LEADED

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ECEA1HE0R1M 数据手册

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Aluminum Electrolytic Capacitor  
Application Guidelines  
1.2 Operating Temperature and Life Expectancy  
(1) Expected life is affected by operating temperature.  
Generally, each 10°C reduction in temperature  
will double the expected life. Use capacitors at  
the lowest possible temperature below the  
maximum guaranteed temperature.  
(2) If operating conditions exceed the maximum  
guaranteed limit, rapid eIectrical parameter  
deterioration will occur, and irreversible damage  
will result.  
1. Circuit Design  
Ensure that operational and mounting conditions  
follw the specified conditions detailed in the catalog  
and specification sheets.  
1.1 Operating Temperature and Frequency  
Electrolytic capacitor electrical parameters are  
normally specified at 20°C temperature and 120Hz  
frequency. These parameters vary with changes in  
temperature and frequency. Circuit designers  
should take these changes into consideration.  
(1) Effects of operating temperature on electrical  
parameters  
a)At higher temperatures, leakage current and  
capacitance increase while equivalent series  
resistance(ESR) decreases.  
b)At lower temperatures, leakage current and  
capacitance decrease while equivalent series  
resistance(ESR) increases.  
Check for maximum capacitor operating tempera-  
tures including ambient temperature, internal  
capacitor temperature rise caused by ripple current,  
and the effects of radiated heat from power  
transistors, IC?s or resistors.  
Avoid placing components which could conduct  
heat to the capacitor from the back side of the circuit  
board.  
(3)The formula for calculating expected Iife at lower  
operating temperatures is as fllows;  
L2 = L1 x 2T1-T2 where,  
(2) Effects of frequency on electrical parameters  
a)At higher frequencies, capacitance and  
impedance decrease while tan δ increases.  
b)At lower frequencies, ripple current generated  
heat will rise due to an increase in equivalent  
series resistance (ESR).  
10  
L1: Guaranteed life (h) at temperature, T1° C  
L2: Expected life (h) at temperature,T2°C  
T1: Maximum operating temperature (°C)  
T2: Actual operating temperature, ambient  
temperature + temperature rise due to  
ripple currentheating(°C)  
A quick eference capacitor guide for estimating  
exected life is included for your reference.  
■ Expected Life Estimate Quick Reference Guide  
■ Failure rate curve  
120  
110  
100  
90  
1. 85°C2000h  
2.105°C1000h  
3.105°C2000h  
4.105°C5000h  
3
4
2
Initial failure period  
Random failure period  
1
Wear failure period  
80  
70  
60  
Life Time  
Time  
50  
40  
2000  
5000 10,000 20,000  
50,000 100,000 200,000  
(h)  
24h  
operat-  
ion  
1
3
2
3
4
5
7
20  
Years  
6
10  
15 20 30  
Years  
8h/d  
Design, Specifications are subject to change without notice. Ask factory for technical specifications before purchase and/or use.  
Whenever a doubt about safety arises from this product, please inform us immediately for technical consulation without fail.  
– EE16 –  
12345678

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