EEC-A2R3U106 Panasonic Electric Works, EEC-A2R3U106 Datasheet - Page 3

• Manufacturer Part Number: EEC-A2R3U106
• Manufacturer: Panasonic Electric Works

Specifications of EEC-A2R3U106

• Voltage: 2.3VDC
• Mounting Style: Through Hole
• Construction: Radial
• Lead Spacing (nom): 5mm
• Product Length (mm): Not Requiredmm
• Product Depth (mm): Not Requiredmm
• Product Height (mm): 35mm
• Product Diameter (mm): 12.5mm
• Lifetime: 1000
• Capacitance: 10F
• Package / Case: Not Required
• Lead Free Status / RoHS Status: Compliant

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.
1. Circuit Design
Ensure that operational and mounting conditions
follow the specified conditions detailed in the catalog
and specification sheets.
1.1 Lifetime
G o l d C a p a c i t o r s h a v e a l o n g e r l i f e t i m e t h a n d o
secondary batteries, but their life is still limited. During
use, capacitance decreases and internal resistance
rises.The lifetime of a Gold Capacitor is greatly affected
b y a m b i e n t t e m p e r a t u r e , a p p l i e d v o l t a g e a n d
o p e r a t i n g c u r r e n t . B y r e d u c i n g t h e s e f a c t o r s
a s m u c h a s p o s s i b l e , c a p a c i t o r l i f e t i m e c a n b e
lengthened.
1.2 Voltage
If a Gold Capacitor is used at a voltage exceeding
its rated voltage, not only is its lifetime shortened, but
depending on the actual voltage, gas generated by
electrochemical reactions inside the capacitor may
cause it to leak or rupture.
1.3 Polarity
Be sure to verify the polarity of the capacitor before use.
I f a r e v e r s e v o l t a g e i s a p p l i e d f o r a l o n g t i m e ,
capacitor lifetime is shortened and serious damage
such as electrolyte leakage may occur.
Furthermore, there may be leftover electric charge from
capacitor testing that could damage other circuit
components such as the low-withstanding voltage
parts of semiconductors, etc.
1.4 Ambient Temperature
(1)Capacitor life is affected by operating temperature.
(2)Operation above the maximum specified temperature
Series
In general, lowering ambient temperature by 10 C
will double the life of a capacitor. Use the capacitor
at the lowest possible t e m p e r a t u r e u n d e r t h e
maximum guaranteed temperature.
not only shortens capacitor life, but can also cause
serious damage such as electrolyte leakage.
by taking into consideration not only the ambient
temperature and temperature inside the unit, but
also the radiation from heat generating elements
Be careful not to place heat-generating elements
Verify the operating temperature of the capacitor
inside the unit (power transistors, IC’s, resistors, etc.)
and self-heating due to ripple current.
across from the capacitor on the opposite side of
SG,SD,SE,NF
the PCB.
F
EL
AL,HW
Application Guidelines
200 µA or less
0.047 F or less
200 µA or less
300 µA or less
300 µA or less
300 µA or less
0.1 to 0.33 F
– EE233 –
Operating current
100 mA or less
0.47 to 1.5 F
300 µA or less
1.5 Characteristics of constant current and
T h e t i m e r e q u i r e d f o r t h e c o n s t a n t c u r r e n t a n d
constant resistance discharging are respectively
represented by the equation (1) and (2) below:
Discharging time (t) of constant current discharge
t=C × (V
Discharging time (t) of constant resistance discharge
t=-CRln(V
The above equations may not always be accurate,as
the terminal down v o l t a g e m u s t b e c o n s i d e r e d
after the start of discharge if load resistance or load
current is present.
Back-up characteristics for IC
Also, if the capacitor is used to back-up and IC, the
V - I c h a r a c t e r i s t i c s o f t h e I C m u s t a l s o b e
c o n s i d e r e d . I t c a n t h e r e f o r e b e s a i d t h a t i f t h e
v o l t a g e i s l o w , t h e c u r r e n t i s a l s o l o w a n d t h e
a f t u a l b a c k - u p t i m e w i l l b e l o n g e r t h a n t h a t
c a l c u l a t e d . T o b e c e r t a i n t h a t i f t h e c a p a c i t o r
s e l e c t e d i s o f s u f f i c i e n t v a l u e t o m a i n t a i n t h e
necessary energy and time, it should be checked
and measured under actual operating conditions.
1.6 Voltage Drop During Backup Operation
Take careful notice of the voltage drop caused by the
instantaneous operating current and the internal
resistance of the Gold Capacitor during the switch
f r o m p o w e r - f a i l u r e - d e t e c t i o n t o b a c k u p m o d e .
Because internal resistance varies by product, use
the following table to decide the correct operating
(discharge) current.
1 mA or less
1 mA or less
constant resistance discharging
Electric Double Layer Capacitors
0
-V
1
/ V
1
) / I......(1)
0
) ...... (2)
V
V
t = charging time (s)
I = current during back-up (A)
300 mA or less
0
1
3.3 to 4.7 F
= initial voltage (v)
= terminal voltage (v)
1 A or less
10F to
Mar. 2005