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55
138D
Vishay
Document Number: 40025
Revision 15-Oct-03
For technical questions, contact wettants@vishay.com
DIMENSIONS in inches [millimeters]
DL
Weld
0.250 [6.35]
Max.
0.0253 ± 0.002 [0.64 ± 0.05] Dia.
(No. 22 AWG) Tinned Solderable Leads
FEATURES
Improved reliability through the use of a glass-to-tantalum
true hermetic anode seal is the prime feature of the Type
138D sintered anode TANTALEX
®
capacitor. This construction
offers outstanding resistance to thermal shock.
Model 138D is the commercial equivalents of Tansitor Styles
WT, UWT, Mallory-NACC Styles TLX, TXX and Military Styles
CL66, CL67, CLR65, and CLR69, designed to meet the
performance requirements of Military Specification MIL-PRF-
39006/09/21. Capacitors in accordance with military
specifications should be ordered by their military part
numbers.
Following the life test:
1. DCL shall not exceed 125% of the original requirement.
2. The ESR shall not exceed 200% of the initial requirement.
3. Change in capacitance value shall not exceed the
percentages below.
a) 6WVDC Units: + 10% to - 25% of initial measurement.
b) 8WVDC and 10WVDC Units: + 10% to - 20% of initial
measurement.
c) 15WVDC Units: + 10% to - 15% of initial measurement.
d) 20WVDC and above: ± 10% of initial measurement.
PERFORMANCE CHARACTERISTICS
Operating Temperature: - 55°C to + 85°C and with
voltage derating to two-thirds the + 85°C rating at + 125°C.
Use of Type 138D capacitors for high temperature
applications is recommended.
Capacitance Tolerance: At 120Hz, + 25°C. ± 20% standard.
± 10%, ± 5% available as special.
DC Leakage Current (DCL Max.):
At + 25°C, + 85°C and + 125°C: Leakage current shall not
exceed the values listed in the Standard Ratings Tables.
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.
BARE TUBE
CASE
CODE
C
F
T
K
D
0.188 ± 0.016
[4.78 ± 0.41]
0.281 ± 0.016
[7.14 ± 0.41]
0.375 ± 0.016
[9.53 ± 0.41]
0.375 ± 0.016
[9.53 ± 0.41]
Max. WEIGHT
(Ounces/Grams)
0.07
[2.0]
0.18
[5.1]
0.36
[10.2]
0.49
[13.9]
LEAD
LENGTH
1.500 ± 0.250
[38.10 ± 6.35]
2.250 ± 0.250
[57.15 ± 6.35]
2.250 ± 0.250
[57.15 ± 6.35]
2.250 ± 0.250
[57.15 ± 6.35]
WITH OUTER
PLASTIC - FILM INSULATION
L (Max.)
0.608
[15.45]
0.796
[20.22]
0.921
[23.40]
1.127
[30.91]
D (Max.)
0.219
[5.56]
0.312
[7.92]
0.406
[10.31]
0.406
[10.31]
L
0.453 + 0.031 - 0.016
[11.51 + 0.79 - 0.41]
0.641 + 0.031 - 0.016
[16.28 + 0.79 - 0.41]
0.766 + 0.031 - 0.016
[19.46 + 0.79 - 0.41]
1.062 + 0.031 - 0.023
[26.97 + 0.79 - 0.58]
Tantalum
Wet Tantalum Capacitors
Sintered Anode TANTALEX
®
Capacitors Hermetically-Sealed
with True Glass-to-Tantalum Seal
ORDERING INFORMATION
138D
MODEL
306
CAPACITANCE
2
STYLE NUMBER
X0
CAPACITANCE
TOLERANCE
006
DC VOLTAGE RATING
AT + 85°C
C
CASE CODE
This is expressed in
picofarads. The first two
digits are the significant
figures. The third is the
number of zeros to
follow.
X0 = ± 20%
X9 = ± 10%
X5 = ± 5%
Special Order.
This is expressed in volts.
To complete the three-digit
block, zeros precede the
voltage rating. A decimal
point is indicated by an "R"
(6R3 = 6.3 volts).
See Ratings
and Case
Codes Table.
0 = No outer tube.
2 = Outer plastic-film insulation.
Packaging: The use of formed plastic trays for packaging these axial lead components is standard. Tape and reel is not recommended
due to the unit weight.