KEMET Organic Capacitor (KO-CAP
®
) – Automotive Grade
T591, T598, T597, and T599 High Humidity and High
Temperature Automotive Grade Polymer Electrolytic,
2.5 – 75 VDC
Overview
The KEMET Organic Capacitor (KO-CAP) is a solid
electrolytic capacitor with a conductive polymer cathode,
capable of delivering very low ESR and an improved
capacitance retention at high frequencies. KO-CAP
combines the low ESR of the multilayer ceramic, the high
capacitance of aluminum electrolytic and the volumetric
efficiency of tantalum into a single surface mount
package. Unlike liquid electrolyte-based capacitors,
KO-CAP has a very long operational life and a high ripple
current capabilities.
The T591/T597/T598/T599 High Humidity and High
Temperature Polymer Electrolytic capacitors deliver higher
capacitance and ESR stability under harsh environmental
conditions. Enhancements to the design and selected
material upgrades were introduced to deliver 500 hours
(T591) or 1,000 hours (T598, T599) at 85°C/85% RH rated
voltage and to fully comply with the AEC-Q200 qualification
testing with maximum operational temperature life up
to 125ºC and 150ºC respectively. These capacitors are
manufactured in an ISO TS 16949 certified plants and are
subjected to PPAP/PSW, as well as change control.
Benefits
• Ultra low ESR
• Full compliance with AEC-Q200 qualification test plan
(T597 FD 125°C, T598 125°C, T599 150°C)
• Qualification plan based on AEC–Q200 with 85°C/85%
RH load specification limited to 500 hours (T591)
• Extended endurance test qualification for T598/T599
(V
R
< 16 V) , up to 2,000 hours 125°C
• Dedicated H termination and Surge current testing options
(T598) for Defense and Aerospace Segment
• TS 16949 certified plants
• Subject to PPAP/PSW and change control
• Meets or exceeds EIA standard 535BAAC
• Tape & Reel standard packaging per EIA 481
• Halogen-free epoxy and RoHS compliant
Applications
Typical applications include decoupling and filtering in
a variety of market segments, with special emphasis in
automotive applications such as infotainment, ADAS, chassis
and safety, as well as powertrain, where harsh conditions,
such as high humidity and temperature, are a concern.
Built Into Tomorrow
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2073_T59X • 4/12/2023
1
KEMET Organic Capacitor (KO-CAP
®
) – Automotive Grade
T591, T598, T597, and T599 High Humidity and High Temperature Automotive Grade Polymer Electrolytic, 2.5 - 75 VDC
K-SIM
For a detailed analysis of specific part numbers, please visit ksim.kemet.com to access KEMET’s K-SIM software. KEMET
K-SIM is designed to simulate behavior of components with respect to frequency, ambient temperature, and DC bias levels.
Ordering Information
Standard Construction
T
59X
Capacitor
Class
T = Tantalum
Series
591 = 500 Hours
load humidity
598 = AEC-Q200
qualified (125°C)
599 = AEC-Q200
qualified (150°C)
D
Case
Size
B
D
V
X
107
Capacitance
Code (pF)
First two
digits
represent
significant
figures. Third
digit specifies
number of
zeros.
M
010
A
T
E025
ESR
Maximum
ESR in
mΩ,
025 = 25
mΩ
Packaging
(C-Spec)
Blank = 7" Reel
7280 = 13" Reel
Capacitance Rated Voltage Failure Rate/ Termination
Tolerance
(VDC)
Design
Finish
M = ±20%
K = ±10%
2R5 = 2.5
006 = 6.3
010 = 10
016 = 16
020 = 20
025 = 25
035 = 35
050 = 50
075 = 75
A = N/A
T = 100%
Tin (Sn)
Face Down Construction
T
597
Capacitor
Class
T = Tantalum
Series
597 = AEC-Q200
qualified (125°C)
face down
construction
S
Case
Size
S
476
Capacitance
Code (pF)
First two
digits
represent
significant
figures. Third
digit specifies
number of
zeros.
M
006
A
P
Termination
Finish
P = Ni-Pd-Au
E200
ESR
Maximum
ESR in
mΩ,
200 = 200
mΩ
Packaging
(C-Spec)
Blank = 7" Reel
Capacitance Rated Voltage Failure Rate/
Tolerance
(VDC)
Design
M = ±20%
2R5 = 2.5
006 = 6.3
010 = 10
A = N/A
Up-Screen with H Termination and Surge Option
T
598
D
107
Capacitor
Class
T=
Tantalum
Series
598 = AEC-Q200
qualified (125°C)
Case
Size
B
D
V
X
M
010
Rated
Voltage
(VDC)
2R5 = 2.5
004 = 4
006 = 6.3
010 = 10
016 = 16
025 = 25
035 = 35
050 = 50
A
H
E
Surge
E=
None
S = 10
cycles
25°C
040
ESR
Maximum
ESR in mΩ,
040 =
40 mΩ
Packaging
(C-Spec)
Blank = 7" Reel
7280 = 13" Reel
Capacitance Capacitance
Code (pF)
Tolerance
First two
digits
represent
significant
figures.
Third digit
specifies
number of
zeros.
M = ±20%
K = ±10%
Failure Termination
Rate/
Finish
Design
A=
N/A
H=
Standard
solder
coated
(SnPb
5% Pb
minimum)
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2073_T59X • 4/12/2023
2
KEMET Organic Capacitor (KO-CAP
®
) – Automotive Grade
T591, T598, T597, and T599 High Humidity and High Temperature Automotive Grade Polymer Electrolytic, 2.5 - 75 VDC
Performance Characteristics
Item
Operating Temperature
Rated Capacitance Range
Capacitance Tolerance
Rated Voltage Range
DF (120 Hz)
ESR (100 kHz)
Leakage Current
−55°C to 105°C/125°C/150°C
1.5 – 680 µF at 120 Hz/25°C
K Tolerance (10%), M Tolerance (20%)
2.5 – 75 V
Refer to Part Number Electrical Specification Table
Refer to Part Number Electrical Specification Table
≤ 0.1 CV (µA) at rated voltage after 5 minutes
T597: ≤ 0.3 CV (µA) at rated voltage after 5 minutes
Performance Characteristics
Environmental Compliance
• RoHS compliant when ordered with 100% Sn (AT) or Ni-Pd-Au (AP) termination
• End of Life Vehicle compliant according to 2003/53/EC as amended by (EU) 2016/774 when ordered with 100% Sn (AT)
or Ni-Pd-Au (AP) termination
• NOT RoHS or End of Life Vehicle compliant when ordered with SnPb termination (AH) due to the content of Lead
(CAS # 7439-92-1) in the termination
• REACH Candidate list of substance of very high concern, Lead (CAS# 7439-92-1) contained when ordered with
SnPb termination (AH)
• Halogen-free/Epoxy compliant with UL 94 V-0
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2073_T59X • 4/12/2023
3
KEMET Organic Capacitor (KO-CAP
®
) – Automotive Grade
T591, T598, T597, and T599 High Humidity and High Temperature Automotive Grade Polymer Electrolytic, 2.5 - 75 VDC
Qualification
Test
Condition
Temperature: 105°C,125°C,150°C
*2
Voltage: 1.0 Rated Voltage
2/3 Rated Voltage for ≥ 125°C rating PN
Time: 2,000 Hours
1,000 Hours
*5
Temperature: 105°C,125°C,150°C
*2
Voltage: 0 Voltage
Time: 2,000 Hours
1,000 Hours
*5
85°C, 85% RH, load, 500 hours (T591)
85°C, 85% RH, load, 1,000 hours
(T597, T598, T599)
Δ C/C
DF
DCL
ESR
Δ C/C
DF
DCL
ESR
Δ C/C
DF
DCL
ESR
Δ C/C
Moisture
Resistance
*1
MIL–STD–202, Method 106,
65°C, 90 – 100% RH, no load, 10 cycles
DF
DCL
ESR
Δ C/C
Temperature
Cycling
JESD22, Test Method A104,
−55°C to +105°C/+125°C/+150°C
*2
, 1,000 cycles
DF
DCL
ESR
105°C, 1.32 x rated voltage, 1,000 cycles,
33 Ω in series
125°C/150°C, 1.32 x (0.67 x V
R
), 1,000 cycles,
33 Ω in series
*2
Extreme temperature exposure at a succession
of continuous steps at
+25°C, −55°C, +25°C, +85°C,
+105°C/+125°C/+150°C
*2
, +25°C
AEC–Q200 (MIL–STD–202, Method 213, Figure 1,
Condition F.)
Δ C/C
DF
DCL
Δ C/C
DF
DCL
ESR
+25°C
IL
*3
IL
IL
Δ C/C
DF
Characteristics
Within −20%/+10% of initial value
Within 2 x initial limit
Within 2 x initial limit
Within 2 x initial limit
Within −20%/+10% of initial value
Within 2 x initial limit
Within 2 x initial limit
Within 2 x initial limit
Within −5%/+35% of initial value
Within 1.5 x initial limits
Within initial limit
Within 2 x initial limit
Within −10%/+20% of initial value
*6
Within initial limit
Within initial limit
Within 2 x initial limit
Within −20%/+10% of initial value
Within initial limits
Within initial limit
Within 2 x initial limits
Within −20%/+10% of initial value
Within initial limits
Within initial limits
Within initial limits
−55°C
±20%
*7
IL
N/A
+85°C
±20%
1.2 x IL
10 x IL
+105°C/+125°C/+150°C
*2
±30%
*4
1.5 x IL
10 x IL
Endurance
Storage Life
Humidity
Surge Voltage
Temperature
Stability
Within ±10% of initial value
Within initial limits
AEC–Q200 (MIL–STD–202, Method 204, 5 G for 20
ESR
Within initial limits
minutes/12 cycles each of 3 orientations.
DCL
Within initial limits
Test from 10 – 2, 000 Hz.)
*1
This test is not applicable to the T591 series ratings
*2
Refer to part number specifications for individual temperature classification
*3
IL = Initial limit
*4
For T599 (≤ 16 V) apply
−30%/+40%
*5
1,000 hours for Endurance and Storage is applicable to T597 series offerings & PN T599X336M035ATE065
*6
For T599 (2.5 V) apply
−20%/+30%
*7
For T599 (2.5 V) apply
−25%/+20%
Mechanical
Shock/
Vibration
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2073_T59X • 4/12/2023
4
KEMET Organic Capacitor (KO-CAP
®
) – Automotive Grade
T591, T598, T597, and T599 High Humidity and High Temperature Automotive Grade Polymer Electrolytic, 2.5 - 75 VDC
Reliability
KO-CAP capacitors have an average failure rate of 0.5 %/1,000 hours at category voltage, U
C
, and category temperature,
T
C
. These capacitors are qualified using industry test standards at U
C
and T
C
. The minimum test time (1,000 hours or 2,000
hours) is dependent on the product.
The actual life expectancy of KO-CAP capacitors increases when application voltage, U
A
, and application temperature, T
A
,
are lower than U
C
and T
C
. As a general guideline, when U
A
< 0.9 * U
C
and T
A
< 85°C, the life expectancy will typically exceed
the useful lifetime of most hardware (> 10 years).
The lifetime of a KO-CAP capacitor at a specific application voltage and temperature can be modeled using the equations
below. A failure is defined as passing enough current to blow a 1-amp fuse. The calculation is an estimation based on
empirical results and is not a guarantee.
VAF =
where:
( )
U
A
U
C
n
[ (
TAF = e
E
a
k
1
273+T
A
1
273+T
C
)]
VAF = acceleration factor due to voltage, unitless
U
C
= category voltage, volt
U
A
= application voltage, volt
n = exponent, 16
where:
TAF = acceleration factor due to temperature, unitless
E
a
= activation energy, 1.4 eV
k = Boltzmann’s constant, 8.617E-5 eV/K
T
A
= application temperature, °C
T
C
= category temperature, °C
AF = VAF * TAF
where:
AF = acceleration factor, unitless
TAF = accerlation factor due to temperature, unitless
VAF = acceleration factor due to voltage, unitless
where:
Life
U ,T
= Life
U ,T
* AF
A
A
C
C
Life
UA, TA
= estimated life application voltage
and temperature, years
Life
UC, TC
= guaranteed life category voltage
and temperature, years
AF = acceleration factor, unitless
Reliability Table 1 – Common Temperature Range Classifications
85°C (T
R
)/
85°C (T
C
)
105°C (T
R
)/
105°C (T
C
)
105°C (T
R
)/
125°C (T
C
)
105°C (T
R
)/
150°C (T
C
)
Rated voltage (U
R
)
Category voltage (U
C
)
Rated voltage (U
R
)
Category voltage (U
C
)
Rated voltage (U
R
)
Category voltage (U
C
)
Rated voltage (U
R
)
Category voltage (U
C
)
2.5
2.5
2.5
2.5
2.5
1.7
2.5
1.7
4.0
4.0
4.0
4.0
4.0
2.7
4.0
2.7
6.3
6.3
6.3
6.3
6.3
4.2
6.3
4.2
8.0
8.0
8.0
8.0
8.0
5.4
8.0
5.4
10.0
10.0
10.0
10.0
10.0
6.7
10.0
6.7
12.5
12.5
12.5
12.5
12.5
8.4
12.5
8.4
16.0
16.0
16.0
16.0
16.0
10.7
16.0
10.7
20.0
20.0
20.0
20.0
20.0
13.4
20.0
13.4
25.0
25.0
25.0
25.0
25.0
16.8
25.0
16.8
35.0
35.0
35.0
35.0
35.0
23.5
35.0
23.5
50.0
50.0
50.0
50.0
50.0
33.5
50.0
33.5
63.0
63.0
63.0
63.0
63.0
42.2
63.0
42.2
75.0
75.0
75.0
75.0
75.0
50.3
75.0
50.3
Terms:
Category voltage, U
C
: Maximum recommended peak DC operating voltage for continuous operation at the category temperature, T
C
.
Rated voltage, U
R
: Maximum recommended peak DC operating voltage for continuous operation up to the rated temperature, T
R
.
Category temperature, T
C
: Maximum recommended operating temperature. Voltage derating may be required at T
C
.
Rated temperature, T
R
: Maximum recommended operating temperature without voltage derating. T
R
is equal to or lower than T
C
.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
T2073_T59X • 4/12/2023
5
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