Tantalum Surface Mount Capacitors High Reliability
T493 High Reliability Alternative MnO (CWR11 Style)
2
Overview
The KEMET T493 is designed for the High Reliability The KEMET patented Simulated Breakdown Screening (SBDS)
Series (HRA) requirements of military and aerospace is a nondestructive testing technique that simulates the
applications. The T493 is a surface mount product, breakdown voltage (BDV) of a capacitor, without the damage
offering various lead-frame plating options, Weibull grading to its dielectric or to the general population of capacitors.
options, surge current testing, F-Tech (an improved anode This screening identifies hidden defects in the dielectric,
manufacturing process), and Simulated Breakdown Voltage
providing the highest level of dielectric testing. SBDS is
(SBDV) screening options to improve long term reliability.
based on the simulation of breakdown voltage (BDV), the
Standard, low, and ultra-low ESR options are available.
ultimate test of the dielectric in a capacitor.
All lots of T493 are conditioned with MIL-PRF-55365
Group A testing. This series is also approved for DLA
Low BDV indicates defects in the dielectric, and therefore, a
drawing 07016 (please see part number list specific to this
higher probability of failure in the field. High BDV indicates
drawing).
a stronger dielectric and high-reliability performance in the
field. This new screening method allows KEMET to identify
KEMETs F-Tech eliminates hidden defects in the dielectric,
the breakdown voltage of each individual capacitor and
which continue to grow in the field, causing capacitor
provide only the strongest capacitors from each lot.
failures. Based on the fundamental understanding of
degradation mechanisms in tantalum and niobium
SBDS is currently available on select part types in the T493
capacitors, F-Tech incorporates multiple process
and T497. Please contact KEMET for details on ordering other
methodologies. Some minimize the oxygen and carbon
part types with these capabilities.
content in the anodes, which become contaminants
and can lead to the crystallization of the anodic oxide
KEMET offers these technologies per the following options:
dielectric. This process methodology reduces the
F-Tech only
contaminants, improving quality of the dielectric. An
SBDS only
additional technology provides a stronger mechanical
Combination of both F-Tech and SBDS for the ultimate
connection point between the tantalum lead wire and
protection
tantalum anode, enhancing robustness and product
reliability. The benefit of F-Tech is illustrated by a 2,000
hour, 85C, 1.32 X rated voltage accelerated life test.
F-Tech parts see no degradation while standard tantalums
have 1.5 orders of magnitude degradation in leakage
current. F-Tech is currently available for T493 Series
(select D and X case capacitance values in 25 V and
higher rated voltage). Please contact KEMET for details on
ordering other part types with these capabilities.
One world. One KEMET
KEMET Electronics Corporation KEMET Tower One East Broward Boulevard T2007_T493 2/14/2020 1
Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.comTantalum Surface Mount Capacitors High Reliability
T493 High Reliability Alternative MnO (CWR11 Style)
2
Benefits
F-Tech and Simulated Breakdown Voltage (SBDS) Termination options B, C, H, K, T, N, and M
screening options available Weibull failure options B and C
Tape & Reel standard packaging per EIA 481 All parts tested per Group A of MILPRF55365
Symmetrical, compliant terminations Approved for DLA Drawing 07016 applications*
* Defense Logistics Agency (DLA), previously identified as DSCC
Laser-marked case
100% surge current test available on all case sizes
Applications
Typical applications include decoupling and filtering in military and aerospace applications.
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 493 D 227 K 006 C H 61 20
Rated
Capacitor Case Capacitance Capacitance Failure Rate/ Packaging
Series Voltage Termination Finish Surge ESR
Class Size Code (pF) Tolerance Design (C-Spec)
(VDC)
T = Military A, First two J = 5% 004 = 4 A = N/A C = Hot solder dipped 61 = None 10 = ESR Blank = 7"
Tantalum COTS B,
digits K = 10% 006 = 6.3 B = 0.1%/ H = Standard solder- 62 = 10 Cycles after standard reel
C, represent M = 20% 010 = 10 1,000 hours coated (SnPb 5% Pb Weibull, 25C 20 = ESR 7280 = 13"
D, significant 016 = 16 C = 0.01%/ minimum) 63 = 10 cycles after low reel
E, figures. 020 = 20 1,000 hours B = Gold-plated Weibull, 55C and 30 = ESR 7610 = Bulk
X Third digit 025 = 25 K = Solder fused 85C after Weibull ultra-low Bag
specifies 035 = 35 T = 100% tin 64 = 10 cycles 7640 = Bulk
number of 050 = 50 N = Non-magnetic before Weibull,55 plastic box
zeros. 063 = 63 100% tin (Sn) and +85C WAFL =
M = Non-magnetic Waffle pack
(SnPb)
For detailed part number offerings, please refer to: Table 1A COTS, Table 1B DLA Drawing 07016
KEMET Electronics Corporation KEMET Tower One East Broward Boulevard T2007_T493 2/14/2020 22
Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.com