T213A105J050ASC Kemet Corporation, T213A105J050ASC Datasheet - Page 77

• Manufacturer Part Number: T213A105J050ASC
• Description: Tantalum Hermetically Sealed / Axial
• Manufacturer: Kemet Corporation

9. WORKING VOLTAGE
ing voltage for continuous duty at or below 85°C without
DC voltage surges or AC ripple superimposed. No voltage
derating is required below 85°C. Capacitors may be oper-
ated to 125°C with working voltage linearly derated to 2/3
of the 85°C rating at 125°C as shown in Figure 6.
10. SURGE VOLTAGE
which the capacitor should be subjected under transient
conditions, including peak AC ripple and all DC transients.
with the applicable surge voltage per Table 1. The surge
voltage is applied for 1000 cycles of 30 seconds on volt-
age through a 33 ohm series resistor and 30 seconds off
voltage with the capacitor discharged through a 33 ohm
resistor. Upon completing the test, the capacitors are
allowed to stabilize at room temperature. Capacitance, DF,
and DCL are then tested:
11. REVERSE VOLTAGE
transient voltage reversal is permissible, as seen below.
The capacitors should not be operated continuously in
reverse mode, even within these limits.
12. EQUIVALENT SERIES RESISTANCE (ESR)
high-frequency statement of the resistance unavoidably
appearing in these capacitors. ESR is not a pure resis-
tance, and it decreases with increasing frequency. Typical
ESR limits are established in each specific product series.
However, the ESR limits provided are for reference only,
and are not necessarily the actual value that a particular
Series product will attain.
DC Working
Voltage @ 85°C 2 3 4 6 10 16 20 25 35 50 60 75 100 125
Surge Voltage
@ 85°C
Figure 6.
This is the maximum recommended peak DC operat-
Surge voltage is defined as the maximum voltage to
A typical surge voltage test is performed at +85°C
1. The DCL should not exceed the initial 25°C limit.
2. The capacitance should be within ±10% of initial
3. The DF should not exceed the initial 25°C limit.
Although these are polar capacitors, some degree of
Equivalent Series Resistance (ESR) is the preferred
150
125
100
75
50
25
0
APPLICATION NOTES FOR TANTALUM CAPACITORS
-75
Temperature, °C. Rated Voltage
value.
TABLE 2
TABLE 1
-50
+125
2.6 4 5.3 8 13 20 26 33 46 65 78 98 130 140
Working Voltage Change with Temperature
+25
+85
-25
Reverse Voltage Ratings
KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606 [phone]
Temperature - C
Surge Voltage Ratings
0
15/
Percentage of
+25
15
+50
5
1
+75
+100 +125
capacitive reactance (X
above resonance total impedance is the vector sum of
inductive reactance (X
Figure 8.
many series and parallel elements, each adding to the
complexity of the measurement system.
tance. In most instances (especially in solid tantalum and
Figure 8.
Figure 7b
Figure 7a
X
X
where:
where:
C = capacity, Farad
L = inductance, Henries
C
L
Total impedance of the capacitor is the vector sum of
To understand the many elements of a capacitor, see
A capacitor is a complex impedance consisting of
L — Represents lead wire and construction induc-
f = frequency, Hertz
f = frequency, Hertz
= 2 fL
=
1 ohm
2 fC
L
The Real Capacitor
Total Impedance of the Capacitor
Below Resonance
Total Impedance of the Capacitor
Above Resonance
L
) and ESR.
C
R
X
) and ESR, below resonance;
X
S
C
L
C
KEMET
ESR
ESR
d
R
C
L
R
d
77
®