T491B155K025AS Kemet, T491B155K025AS Datasheet - Page 8

• Manufacturer Part Number: T491B155K025AS
• Description: CAPACITOR TANT 1.5UF 25V 10% SMD
• Manufacturer: Kemet
• Series: T491r
• Type: Moldedr

Specifications of T491B155K025AS

• Capacitance: 1.5µF
• Voltage - Rated: 25V
• Tolerance: ±10%
• Esr (equivalent Series Resistance): 5.000 Ohm
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 1210 (3528 Metric)
• Size / Dimension: 0.138" L x 0.110" W (3.50mm x 2.80mm)
• Height: 0.075" (1.90mm)
• Manufacturer Size Code: B
• Features: General Purpose
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Spacing: -
• Other names: 399-1625-2

*+12% is standard. +15% and 20% apply to certain
extended CV values as noted in part number tables.
6
@ +25°C
Working
& +85°C
Refer to part number tables for available voltage
ratings by series.
These voltages are the maximum recommended peak
DC operating voltages from –55°C to +85°C for
continuous duty. These voltages are derated linearly above
+85°C to 2/3 rated voltage for operation at
+125°C (See Figure 3). For added reliability it is
recommended to operate at a 50% derating of the working
voltage for tantalum capacitors with MnO
See page 39 for working DC Voltage of high temperature
T498 product.
Rated
Volts
3 to 50 volts
10
16
20
25
35
50
100%
–55°C
–10%
80%
60%
40%
20%
3
4
6
-60
@ +25°C
& +85°C
Voltage
-40
Surge
©KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, [phone]
Ambient Temperature
13
20
26
33
46
65
4
5.2
8
-20
+85°C
+10%
SOLID TANTALUM CHIP CAPACITORS
0
Operating Temperature— C
+20 +40 +60 +80 +100 +120 +140
@ +125°C
Derated
Volts
DC
10
13
17
23
33
2
2.7
4
7
*+12% or +15%to20%
°
+125°C
2
@ +125°C
as a cathode.
Voltage
Surge
12
16
20
28
40
2.4
3.2
5
8
+25°C
+85°C
+125°C
Surge voltage tests are performed at +25°C,
+85°C and +125°C with the applicable surge volt-
age. The surge voltage is applied for 1000 cycles
of 30 seconds at voltage 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. Capaci-
tance, DCL and DF are then tested:
a.
b.
c.
d.
Solid tantalum capacitors are polarized devices
and may be permanently damaged or destroyed if
connected with the wrong polarity. The positive
terminal is identified on the capacitor body by a
stripe and a beveled edge. A small degree of tran-
sient reverse voltage is permissible for short peri-
ods per Table 3. The capacitors should not be
operated continuously in reverse mode, even with-
in these limits.
Refer to part number tables for maximum leakage
current limits.
DC leakage current is the current that, after a one-
to five-minute charging period, flows through a
capacitor when voltage is applied. Leakage is
measured at +25°C with full rated DC voltage
applied to the capacitor through a 1000 ohm resis-
tor in series with the capacitor.
DC leakage current increases with increasing tem-
perature.
–55°C
N/A
Capacitance — within ± 5% of initial value
DC Leakage — within initial limit
Dissipation Factor — within initial limit
ESR — within initial limit
Ambient Temperature
+85°C
10X
°
+125°C
12X