TCFG_A Datasheet, PDF (10/13 Pages) Rohm – Chip tantalum capacitors (Fail-safe open structure type)

Tantalum capacitors
TCFG Series A Case
(6) Maximum power dissipation
Warming of the capacitor due to ripple voltage balances with warming caused by Joule heating and by radiated heat.
Maximum allowable warming of the capacitor is to 5qC above ambient temperature. When warming exceeds 5qC, it can
damage the dielectric and cause a short circuit.
Power dissipation (P) = I²Â¦R
Ripple current
P : As shown in table at right
R : Equivalent series resistance
Notes:
1. Please be aware that when case size is changed, maximum allowable power dissipation is reduced.
2. Maximum power dissipation varies depending on the package. Be sure to use a case which will keep warming within
the limits shown in the table below.
Allowable power dissipation (W) and maximum temperature rising
Case ^{Ambient temp. +25°C}
A case (3216) 0.070
+55°C
0.063
+85°C +125°C
0.056 0.028
Max. Temp Rise[°C]
5
5
5
2
(7) Impedance frequency characteristics
100000
10000
1000
100
A105
P case (2012)
G475
A case (3216)
C105
A case (3216)
C335
B case (3528)
10
1
1
100
10k
1M
100M 500M
FREQUENCY (Hz)
Fig.7
(9) Temperature characteristics
10
CAP 120Hz
10V−1μF P case (2012)
4V−4.7μF A case (3216)
4V−33μF B case (3528)
6
2
0
−2
−6
−10
−55
25
85
125
TEMPERATURE (°C)
Fig.9
(8) ESR frequency characteristics
100
10
A105
P case (2012)
G475
A case (3216)
C105
A case (3216)
C335
B case (3528)
1
0.1
1
100
10k
1M
100M 500M
FREQUENCY (Hz)
Fig.8
5
DF 120Hz
10V−1μF P case (2012)
4V−4.7μF A case (3216)
4V−33μF B case (3528)
4
3
2
1
0
−55
25
85
125
TEMPERATURE (°C)
Fig.10
Rev.D 10/12