Model 138D
Vishay Sprague
Wet Tantalum Capacitors
Gelled-Electrolyte Sintered Anode TANTALEX® Capacitors Hermetically-Sealed with True
Glass-to-Tantalum Seal
FEATURES
Improved reliability through the use of a glass-to-tantalum
true hermetic anode seal is the prime feature of the Type
138D gelled-electrolyte sintered anode TANTALEX® capaci-
tor. This construction eliminates all internal lead welds
while retaining the strength of internal lead-welded parts.
Additionally, this construction offers outstanding resistance
to thermal shock.
The military equivalent to the 138D is the CLR65 and
CLR69 which are qualified to MIL-C-39006/9 and /21.
Capacitors in accordance with military specifications
should be ordered by their military part numbers.
Following the life test:
PERFORMANCE CHARACTERISTICS
Operating Temperature: - 55°C to + 85°C and with
voltage derating to two-thirds the + 85°C rating at + 125°C.
Capable of + 175°C operation at reduced voltage. Use of
1. DCL shall not exceed 125% of the original requirement.
Type 135D capacitors for high temperature applications is
recommended.
2. The ESR shall not exceed 200% of the initial
requirement.
Capacitance Tolerance: At 120 Hz, + 25°C. ± 20%
standard. ± 10%, ± 5% available as special.
3. Change in capacitance value shall not exceed the per-
centages below.
DC Leakage Current (DCL Max.):
a) 6 WVDC Units: + 10% to - 25% of initial measurement.
At + 25°C, + 85°C and + 125°C: Leakage current shall not
exceed the values listed in the Standard Ratings Tables.
b) 8 WVDC and 10 WVDC Units: + 10% to - 20% of
initial measurement.
Life Test: Capacitors are capable of withstanding a 2000
hour life test at a temperature of + 85°C or + 125°C at the
applicable rated DC working voltage.
c) 15 WVDC Units: + 10% to - 15% of initial measurement.
d) 20 WVDC and above: ± 10% of initial measurement.
DIMENSIONS in inches [millimeters]
L
D
0.180 [4.57]
Max.
Weld
0.0253 ± 0.002
[0.64 ± 0.05] Dia.
Tantalum
(No. 22 AWG)
Tinned Solderable Leads
WITH OUTER
BARE TUBE
PLASTIC - FILM INSULATION
CASE
CODE
LEAD
LENGTH
Max. WEIGHT
(Ounces/Grams)
D
L
D (Max.)
L (Max.)
C
F
T
K
0.187 ± 0.015
[4.75 ± 0.38]
0.453 + 0.031 - 0.015
[11.51 + 0.79 - 0.38]
0.219
[5.56]
0.515
[13.08]
1.500 ± 0.250
[38.10 ± 6.35]
0.07
[2.0]
0.281 ± 0.015
[7.14 ± 0.38]
0.641 + 0.031 - 0.015
[16.28 + 0.79 - 0.38]
0.312
[7.92]
0.704
[17.88]
2.250 ± 0.250
[57.15 ± 6.35]
0.18
[5.1]
0.375 ± 0.015
[9.53 ± 0.38]
0.765 + 0.031 - 0.015
[19.43 + 0.79 - 0.38]
0.406
[10.31]
0.828
[21.03]
2.250 ± 0.250
[57.15 ± 6.35]
0.36
[10.2]
0.375 ± 0.015
[9.53 ± 0.38]
1.063 + 0.031 - 0.015
[27.00 + 0.79 - 0.38]
0.406
[10.31]
1.126
[28.60]
2.250 ± 0.250
[57.15 ± 6.35]
0.49
[13.9]
Document Number: 40025
Revision 18-Jan-02
www.vishay.com
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