
GR500 GRADED RELIABILITY SPECIFICATIONS
KEMET Electronics Corporation P.O. Box 5928 Greenville, S.C. 29606 864/963-6300
16
KEMET
GR500
KEMET Graded Reliability Specification
CAPACITORS, FIXED, SOLID TANTALUM ELECTROLYTE,
HIGH RELIABILITY
1. SCOPE
1.1
General Description—
This specification details
requirements for high reliability, tantalum, solid electrolyte,
hermetically sealed, fixed capacitors having a graded or
determined failure rate. Operating temperature range is -
65°C to +125°C with primary applications including filter-
ing, bypass and coupling where the ac component of applied
voltage is maintained within the limits as listed in the applic-
able detail specification.
Capacitors covered by this specification are intended for
use where determination of failure rate, shelf life, stability,
leakage current and maximum resistance to environmental
factors are of major concern.
1.2
Classification—
Part numbering of capacitors manufac-
tured in accordance with this specification is described on
Pages 4 and 11.
2. APPLICABLE DOCUMENTS
The following documents of the issue in effect form a part of
this specification to the extent specified herein:
2.1
Specifications—Federal
QQ-S-571 — Solder; Tin Alloy; Lead-Tin Alloy; and
Lead Alloy
TT-I-735 — Isopropyl Alcohol
2.2
Specifications—Military
MIL-PRF-39003 — Capacitors, Fixed, Electrolytic
(Solid Electrolyte) Tantalum,
Established Reliability, General
Specification for
2.3
Standards—Military
MIL-STD-202 — Test Methods for Electronic and
Electrical Components Parts.
MIL-STD-790 — Reliability Assurance Program
for Electronic Parts
MIL-STD-810 — Environmental Test Methods
MIL-STD-1276 — Leads, Weldable, for Electronic
Component Parts
3. REQUIREMENTS
3.1
Detail requirements for individual capacitor series
The part requirements for a capacitor series shall be as spec-
ified herein and as described in the applicable detail specifi-
cation. In the event of any conflict between the requirements
of this specification and the detail specification, the latter
shall govern.
3.2
Reliability assurance
—Capacitors furnished under this
specification shall be subject to the requirements and proce-
dures of 4.1.2, 4.4.2 and 4.5.
3.3
Material
—The material shall be as specified herein.
However, when a specific material is not designated, a mate-
rial shall be used which will enable the capacitors to meet
the performance requirement of this specification.
Acceptance or the approval of any constituent material shall
not be construed as a guarantee of the acceptance of the fin-
ished product. Material traceability shall be maintained
throughout manufacture.
TABLE 1 — DC Rated and Surge Voltages (VDC)
Rated Voltage
85°C
6
10
15
20
30
35
50
60
75
100
Surge Voltage
85°C
8
13
20
26
39
46
65
78
98
130
Rated Voltage
125°C
4
7
10
13
20
23
33
40
50
67
Surge Voltage
125°C
5
9
12
16-
26
28
40
50
64
86
3.3.1
Solder
—Solder shall be as described in QQ-S-571
3.3.2
Soldering flux
—Soldering flux shall be of the rosin or
rosin and alcohol type. Other non-corrosive fluxes may be
used if adequate evidence indicates that no deleterious effect
will be introduced.
3.4.1
Case
—Each capacitor shall be hermetically enclosed
in a case which will protect the capacitor element from dete-
rioration in performance according to the environmental
conditions specified.