T210A103J075PS Kemet Corp., T210A103J075PS Datasheet - Page 14

• Manufacturer Part Number: T210A103J075PS
• Description: GR500 High Reliability Solid Tantalum Capacitors; Capacitance: 0.01uF; Voltage: 75V; Tolerance: ±5%; Body Size: 0.250" x 0.125" Lead Style: Axial; Body Style: Hermetically-Sealed; Features: P Failure Rate
• Manufacturer: Kemet Corp.

12
Voltage and Temperature Ratings; Reliability Effect —
T240 Series capacitors are manufactured in 6 through 60
volt ratings at 85°C. Operation at 125°C with 2/3 rated volt-
age applied gives equivalent results, and voltage may be der-
ated linearly between these two points. Unlike wet elec-
trolytic capacitors, solid tantalum capacitors may be oper-
ated continuously at any voltage from zero to the maximum
rating without adverse effects. Operation at voltage below
nameplate improves reliability, while subsequent operation
at a higher voltage will not be affected by prior low voltage
use.
0.001
0.01
1.0
0.1
0
125
120
100
110
90
85
80
70
60
50
40
30
25
10
T
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 [phone] • www.kemet.com
Fig. 4 Typical effect of voltage upon leakage current
Connect the temperature and
applied voltage ratio of
interest with a straight edge.
The multiplier of failure rate is
given at the intersection of this
line with the model scale.
Given T
Rate Multiplier F1
Given T, & F2
Read Reguired Voltage V2
Given F3 & V3
Read Allowable Temp T3
20
T
T
T
1
3
2
1
& V1 Read Failure
30
Fig.5 Reliability Alignment Chart
APPLICATIONS INFORMATION GR500/T240 (Continued)
F
1
Percentage of Rated Voltage
F
F
2
3
40
V
V
V
50
3
2
1
F
60
10
10
10
1.0
10
10
10
10
10
10
10
10
3
2
1
-1
-2
-3
-4
-5
-6
-7
-8
70
125°C
Rating
Rating
85°C
80
V
90
1.2
1.1
1.0
0.9
0.8
0.7
0.67
0.6
0.5
0.4
0.3
0.2
0.1
100
110
other than the rated conditions may be found in Figure 5.
Since T240 Series capacitors are supplied with a predeter-
mined failure rate under rated conditions, reliability under
use conditions may be estimated with this nomograph.
Circuit Impedance — Failure rates are affected by temper-
ature and voltage as described in Figure 5 and also by the
circuit impedance seen by the capacitor. Traditionally, appli-
cation advice for solid tantalum capacitors suggested an
impedance of 3 ohms or higher per applied volt. This advice
was later found to be unnecessarily conservative, and the
factors in Table II, are based on 0.1 ohm per volt as the unity
failure rate multiplier.
Equivalent Series Resistance — The equivalent series
resistance (ESR) of a solid tantalum capacitor is frequency
dependent. The curves of Figure 6 are typical of the capaci-
tor values noted, with measurements being made by con-
tacting lead wires
cases. Since ESR decreases with frequency, AC performance
at higher frequencies is considerably better than would be
predicted from the 120 Hz ratings.
Capacitor Impedance — The relationship between imped-
ance and frequency at various voltage ratings is illustrated
with typical curves in Figure 6. Impedance declines with
decreasing capacitive reactance, but ESR becomes dominant
before the self-resonant point is reached, producing the typ-
ical damped curves. Finally, impedance increases as induc-
tance of the lead wire and other capacitor elements domi-
nates. Obviously, high frequency impedance is directly
influenced by the length of lead wire and general mounting
configuration. The typical curves of Figure 6 include
of lead wire at each end of the capacitor.
Expected reliability factors for voltages and temperatures
Circuit Impedance,
Ohms per Volt
≥3
0.1
0.2
0.4
0.6
0.8
1
2
1
/
4
inch from the ends of the capacitor
TABLE II
Multiplying Factor
Failure Rate
1.0
0.8
0.6
0.4
0.3
0.2
0.1
0.07
GR500/T240
1
/
4
inch