KEMET
®
TANTALUM CHIP CAPACITORS
T491 SERIES—Precision Molded Chip
T491 RATINGS & PART NUMBER REFERENCE
Capaci-
tance Case
F
Size
KEMET
Part Number
DC
Leakage
A @ 25 C
Max
DF
% @ +25 C
120 Hz
Max
ESR
@ +25 C
100 kHz
Max
Capaci-
tance Case
F
Size
KEMET
Part Number
DC
DF
Leakage % @ +25 C
A @ 25 C
120 Hz
Max
Max
ESR
@ +25 C
100 kHz
Max
20 Volt Rating at +85 C (13 Volt Rating at +125 C) cont’d
1.5
A T491A155(1)020AS
0.5
6.0
8.0
#1.5 *S T491S155(1)020AS
0.5
6.0
15.0
2.2
B T491B225(1)020AS
0.5
6.0
3.5
2.2
A T491A225(1)020AS
0.5
6.0
7.0
3.3
B T491B335(1)020AS
0.7
6.0
3.5
#3.3 *A T491A335(1)020AS
0.7
6.0
7.0
#3.3 *T
T491T335(1)020AS
0.7
6.0
5.0
4.7 C T491C475(1)020AS
1.0
6.0
2.4
4.7
B T491B475(1)020AS
1.0
6.0
3.5
6.8 C T491C685(1)020AS
1.4
6.0
1.9
#6.8 *B T491B685(1)020AS
1.4
6.0
3.5
#6.8 *U T491U685(1)020AS
1.4
6.0
1.9
10.0 C T491C106(1)020AS
2.0
6.0
1.8
#10.0 *B T491B106(1)020AS
2.0
6.0
3.0
#10.0 *U T491U106(1)020AS
2.0
6.0
1.8
15.0
D T491D156(1)020AS
3.0
6.0
1.0
15.0 *C T491C156(1)020AS
3.0
6.0
1.7
22.0
D T491D226(1)020AS
4.4
6.0
0.8
#22.0 *C T491C226(1)020AS
4.4
6.0
1.2
#22.0 *V T491V226(1)020AS
4.4
6.0
0.7
33.0
D T491D336(1)020AS
6.6
6.0
0.8
47.0 *D T491D476(1)020AS
9.4
6.0
0.7
68.0 *X T491X686(1)020AS
13.6
6.0
0.7
#100.0 *X T491X107(1)020AS
20.0
8.0
0.5
25 Volt Rating at +85 C (17 Volt Rating at +125 C)
0.33
A T491A334(1)025AS
0.5
4.0
15.0
0.47
A T491A474(1)025AS
0.5
4.0
14.0
0.68
A T491A684(1)025AS
0.5
4.0
10.0
1.0
B T491B105(1)025AS
0.5
4.0
5.0
1.0
*A T491A105(1)025AS
0.5
4.0
8.0
1.5
B T491B155(1)025AS
0.5
6.0
5.0
1.5
*A T491A155(1)025AS
0.5
6.0
10.0
2.2
C T491C225(1)025AS
0.6
6.0
3.5
2.2
*B T491B225(1)025AS
0.6
6.0
4.5
3.3
C T491C335(1)025AS
0.9
6.0
2.5
3.3
*B
T491B335(1)025AS
0.9
6.0
3.5
4.7
C
T491C475(1)025AS
1.2
6.0
2.4
6.8
C
T491C685(1)025AS
1.7
6.0
1.9
10.0
D
T491D106(1)025AS
2.5
6.0
1.0
10.0
*C
T491C106(1)025AS
2.5
6.0
1.5
15.0
D
T491D156(1)025AS
3.8
6.0
1.0
22.0
*D
T491D226(1)025AS
5.5
6.0
0.8
33.0
*X
T491X336(1)025AS
8.3
6.0
0.7
#33.0
*D
T491D336(1)025AS
8.3
6.0
0.7
(1)
To complete KEMET Part Number, insert M for ±20% tolerance or K for ±10% tolerance.
0.10
0.15
0.22
0.33
0.47
0.47
0.68
0.68
1.0
1.0
1.5
1.5
2.2
2.2
3.3
4.7
4.7
6.8
6.8
10.0
15.0
15.0
22.0
#22.0
0.10
0.15
0.15
0.22
0.33
0.47
0.47
0.68
0.68
1.0
1.5
1.5
2.2
2.2
3.3
4.7
6.8
35 Volt Rating at +85 C (23 Volt Rating at +125 C)
A
T491A104(1)035AS
0.5
4.0
20.0
A
T491A154(1)035AS
0.5
4.0
19.0
A
T491A224(1)035AS
0.5
4.0
18.0
A
T491A334(1)035AS
0.5
4.0
15.0
B
T491B474(1)035AS
0.5
4.0
8.0
*A
T491A474(1)035AS
0.5
4.0
14.0
B
T491B684(1)035AS
0.5
4.0
6.5
*A
T491A684(1)035AS
0.5
4.0
10.0
B
T491B105(1)035AS
0.5
4.0
5.0
*A
T491A105(1)035AS
0.5
4.0
10.0
C
T491C155(1)035AS
0.5
6.0
4.5
*B
T491B155(1)035AS
0.5
6.0
5.0
C
T491C225(1)035AS
0.8
6.0
3.5
*B
T491B225(1)035AS
0.8
6.0
4.0
C
T491C335(1)035AS
1.2
6.0
2.5
D
T491D475(1)035AS
1.7
6.0
1.5
*C
T491C475(1)035AS
1.7
6.0
2.5
D
T491D685(1)035AS
2.4
6.0
1.3
*C
T491C685(1)035AS
2.4
6.0
2.0
*D
T491D106(1)035AS
3.5
6.0
1.0
*X
T491X156(1)035AS
5.3
6.0
0.9
*D
T491D156(1)035AS
5.3
6.0
0.8
*X
T491X226(1)035AS
7.7
6.0
0.7
*D
T491D226M035AS
7.7
6.0
0.7
50 Volt Rating at +85 C (33 Volt Rating at +125 C)
A
T491A104(1)050AS
0.5
4.0
20.0
B
T491B154(1)050AS
0.5
4.0
16.0
*A
T491A154(1)050AS
0.5
4.0
19.0
B
T491B224(1)050AS
0.5
4.0
14.0
B
T491B334(1)050AS
0.5
4.0
10.0
C
T491C474(1)050AS
0.5
4.0
8.0
*B
T491B474(1)050AS
0.5
4.0
9.0
C
T491C684(1)050AS
0.5
4.0
7.0
*B
T491B684(1)050AS
0.5
4.0
8.0
C
T491C105(1)050AS
0.5
4.0
5.5
D
T491D155(1)050AS
0.8
6.0
3.5
*C
T491C155(1)050AS
0.8
6.0
4.5
D
T491D225(1)050AS
1.1
6.0
2.5
*C
T491C225(1)050AS
1.1
6.0
3.5
D
T491D335(1)050AS
1.7
6.0
2.0
*D
T491D475(1)050AS
2.4
6.0
1.5
*X
T491X685(1)050AS
3.5
6.0
1.0
**6 Volt product equivalent to 6.3 volt product.
Higher voltage ratings and tighter capacitance tolerance product may be
substituted within the same size at KEMET’s option. Voltage substitutions
will be marked with the higher voltage rating.
*Extended Values
#Maximum Capacitance Change @ 125 C=+15%. (All others = +12%)
CAPACITOR MARKINGS
T491 Series — All Case Sizes
Molded
Case
CONSTRUCTION
Negative
Termination*
Silver Adhesive
Washer
Polarity
Stripe (+)
Polarity
Bevel (+)
Tantalum
Wire
Polarity
Indicator (+)
Rated
Voltage
226
20
K
942
Print Week Code:
1st Digit = Year
2nd & 3rd Digits = Week
"942" =
The 42nd week of 1999
Picofarad
Code
KEMET
I. D. Symbol
Tantalum
(Ta
2
O
5
)
Weld
Mn0
2
Coat
(First Layer)
(Second Layer)
Carbon
Silver Paint
(Third Layer)
Positive
Termination*
*Termination Solder Coating 90 Sn/10Pb
18
KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, (864) 963-6300
KEMET [ KEMET CORPORATION ]
