SENSITRON
SEMICONDUCTOR
TECHNICAL DATA
DATA SHEET 4973, REV. B
SS6638/ U/ US
SS6640/ US
SS6642/ U/ US
SIGNAL OR COMPUTER DIODE SS6638, SS6640, SS6642
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Switching Diode
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Hermetic, non-cavity glass package
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Metallurgically bonded
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Manufacture & screen to TX/TXV/JANS per MIL-PRF-19500/578,609 using Sensitron
specification, 7700-409X
Physical dimensions: Axial lead similar to DO-35 and surface mount similar to (D-5D)
Maximum ratings T
A
=+25
o
C:
Types
SS6638,SS6638U
SS6640,SS6640U
SS6642,SS6642U
V
BR
V(pk)
150
75
100
V
RWM
V(pk)
125
50
75
Io
MA
300
300
300
I
FSM
Tp=1/120s
A(pk)
2.5
2.5
2.5
R
θJL
L=.375
o
C/W
150
150
150
R
θJEC
L=0
o
C/W
40
40
40
T
STG
, T
J
C
-65 to +175
-65 to +175
-65 to +175
o
Z
θJX
o
C/W
25
25
25
AXIAL
MELF
1N6638 thru 1N6643
PACKAGE
DIMENSIONS - INCHES ( MILLIMETERS)
STYLE
φB
φD
G
L
.018/.022 .056/.080 .130/.180
1.00/1.50
DO-35
0.46/0.56 1.42/2.03 3.30/4.57 25.4/38.10
1N6638U thru 1N6643U
PACKAGE
DIMENSIONS - INCHES ( MILLIMETERS)
STYLE
BL
BD
S
ECT
.165/.195
.070/.085 0.003 Min .019/.028
D-5D
4.19/4.95
1.78/2.16
0.48/0.71
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221 WEST INDUSTRY COURT
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DEER PARK, NY 11729-4681
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PHONE (631) 586-7600
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FAX (631) 242-9798
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World Wide Web - http://www.sensitron.com
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E-Mail - sales@sensitron.com
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