KEMET Organic Capacitor (KO-CAP ) High Reliability
T543 Up-Screen Commercial
Polymer Electrolytic, 2.5 63 VDC
Overview
The KEMET Organic Capacitor (KO-CAP) is a solid The T543 COTS Polymer Electrolytic capacitor is an
electrolytic capacitor with a conductive polymer cathode upscreened version of the industrial T520 KO-CAP. The
capable of delivering very low ESR and improved T543's upscreened option includes surge current testing of
capacitance retention at high frequencies. KO-CAP 10 cycles at +25C and 10 cycles at -55C/+85C. In addition
combines the low ESR of multilayer ceramic, the high to 100% Tin (Sn) terminations, a tin-lead (SnPb) option is
capacitance of aluminum electrolytic, and the volumetric also available. The recommended application derating for
efficiency of tantalum into a single surface mount package. these capacitors is 10 20%, rendering them suitable for
Unlike liquid electrolyte-based capacitors, KO-CAP application voltages from 2.25 to 50 VDC.
has a very long operational life and high ripple current
capabilities.
Benefits
Extremely low ESR
High frequency capacitance retention
100% accelerated steady state aging
100% surge current tested
Tape & Reel standard packaging per EIA 481
Volumetrically efficienct
Surge options at 25C and 55C/+85C
EIA standard case sizes
Halogen-free epoxy and RoHS compliant
Applications
Typical applications include DC/DC converters, switch mode and point of load power supply, radar pulse capacitor, and
telecommunications (mobile phone and base station). Other general applications include decoupling and fi ltering in
applications requiring low ESR or a benign failure mode.
When extreme temperatures and humidity are taken into account, polymer tantalum capacitors offer a number of
advantages over other types of capacitors, when used in extreme environments. KEMET continues to investigate the
behavior of polymer tantalum capacitors in extreme conditions. If you have questions about using these capacitors in
a specific environment or application, we suggest you contact your local representative or fi eld application engineer to
discuss the specific details of your application (see Considerations for Polymer Capacitors in Extreme Environments
located at www.kemet.com/ExtremePolymerPaper).
One world. One KEMET
KEMET Electronics Corporation KEMET Tower One East Broward Boulevard T2061_T543 2/13/2020 1
Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.com
KEMET Organic Capacitor (KO-CAP ) High Reliability
T543 Up-Screen Commercial Polymer Electrolytic, 2.5 63 VDC
Environmental Compliance
RoHS compliant (6/6) according to Directive 2002/95/EC when ordered with 100% Sn solder.
K-SIM
For a detailed analysis of specific part numbers, please visit ksim.kemet.com to access KEMETs 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
T 543 D 156 K 035 A H E 100
Capacitor Case Capacitance Code Capacitance Rated Voltage Failure Rate/ Termination Packaging
Series Surge ESR
Class Size (pF) Tolerance (VDC) Design Finish (C-Spec)
T = Polymer A,B, First two digits K = 10% 2R5 = 2.5 A = N/A H = Standard E = None ESR in Blank = 7" reel
Tantalum Tantalum C, D, represent signicfi ant M = 20% 003 = 3 solder coated S = 10 cycles m 7280 = 13" reel
COTS H, L, gfi ures. Third digit 004 = 4 (SnPb 5% Pb 25C 7610 = Bulk Bag
M, O, speciefi s number of 006 = 6.3 minimum) W = 10 cycles 7640 = Bulk
T, U, zeros. 010 = 10 T = 100% tin 55C and plastic box
V, W, 12R = 12.5 (Sn) 85C WAFL = Waffle
X, Y 016 = 16 pack
020 = 20
025 = 25
035 = 35
050 = 50
063 =63
Performance Characteristics
Item Performance Characteristics
Operating Temperature 55C to 105C/125C (refer to part number for maximum temperature rating)
Rated Capacitance Range 4.7 2,000 F at 120 Hz/25C
Capacitance Tolerance K tolerance (10%), M tolerance (20%)
Rated Voltage Range 2.5 63 V
DF (120 Hz) Refer to Part Number Electrical Specification Table
ESR (100 kHz) Refer to Part Number Electrical Specification Table
Leakage Current 0.1 CV (A) at rated voltage after 5 minutes
KEMET Electronics Corporation KEMET Tower One East Broward Boulevard T2061_T543 2/13/2020 22
Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.com