T491B155K025AS Kemet, T491B155K025AS Datasheet - Page 51

• 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

33. Washing
34. Encapsulations
35. Storage Environment
Under normal circumstances, potting or encapsula-
tion of KEMET tantalum chips is not required.
The iron should be used to heat the solder pad,
applying solder between the pad and the termina-
tion, until reflow occurs. The iron should be
removed. “Wiping” the edges of a chip and heating
the top surface is not recommended.
Standard washing techniques and solvents are
compatible with all KEMET surface mount tantalum
capacitors. Solvents such as Freon TMC and TMS,
Trichlorethane, methylene chloride, prelete, and iso-
propyl alcohol are not harmful to these compo-
nents. Please note that we are not endorsing the
use of banned or restricted solvents. We are simply
stating that they would not be harmful to the com-
ponents.
If ultrasonic agitation is utilized in the cleaning
process, care should be taken to minimize energy
levels and exposure times to avoid damage to the
terminations.
KEMET tantalum chips are also compatible with
newer aqueous and semi-aqueous processes.
Conductive polymer series (T520, T525, T530) are
shipped in moisture barrier bags with a desiccant
and moisture indicator card. These series are clas-
sified as MSL (Moisture Sensitivity Level 3). Upon
opening the moisture barrier bag, parts should be
mounted within 7 days to prevent moisture absorp-
tion and outgassing. If the 7 day window is exceed-
ed, the parts can be baked per the instructions on
the bag (168 hours at 40±5ºC).
During typical reflow operations a slight darkening
of the gold-colored epoxy may be observed. This
slight darkening is normal and is not harmful to the
product. Marking permanency is not affected by
this change.
The EIA standards for conductive polymer capaci-
tors allows an ESR movement to 1.1 times (or 3 mil-
liohms, whichever is greater) the catalog limit past
mounting.
©KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, [phone]
CONDUCTIVE POLYMER CHIP CAPACITORS
Polymer chip capacitors should be stored in normal
working environments. While the chips themselves
are quite robust in other environments, solderability
will be degraded by exposure to high temperatures,
high humidity, corrosive atmospheres, and long
term storage. In addition, packaging materials will
be degraded by high temperature - reels may soft-
en or warp, and tape peel force may increase.
KEMET recommends that maximum storage tem-
perature not exceed 40 degrees C, and the maxi-
mum storage humidity not exceed 60% relative
humidity. In addition, temperature fluctuations
should be minimized to avoid condensation on the
parts, and atmospheres should be free of chlorine
and sulfur bearing compounds. For optimized sol-
derability, chip stock should be used promptly,
preferably within 1.5 years of receipt.
Series
T52x
T52x
T52x
T52x
T52x
T52x
T52x
T52x
T530
T530
T530
T530
Case Size
W/7343-15
D/7343-31
D/7343-31
A/3216-18
B/3528-21
C/6032-28
X/7343-43
T/3528-12
V/7343-20
Y/7343-40
X/7343-43
E/7360-38
Typical Weight
(mg)
130
325
500
172
210
342
480
515
650
35
65
38
49