
MIL-PRF-19500P
APPENDIX H
TABLE H-II. Standard lead finishes.
SnPb, dipped or plated
Au plated.
Cylinder style with leads through the base: TO-18; TO-5;
Cylinder style with leads through the base: TO-18;
TO-39; TO-46; TO-72 etc. (JAN, TX, TXV, JANS as
TO-5; TO-39; TO-46; TO-72 etc. (JANS only)
applicable)
Rectangular leaded devices: TO-254; TO-257.
Ceramic Surface Mount U; U1; U2; U3; U4; U5; UA; UB.
Heat sink mounted TO packages: TO-3, TO-66; TO-59;
14 lead flat pack
TO-63.
TO-86, all quality levels
Stud mounted rectifiers: DO-4; DO-5; DO-8; DO-9.
All axial and MELF SMD's.
DO-35; DO-35UR; DO-7; DO-213
10; 14 and 16 lead ceramic DIPs
H.5 PACKAGE OUTLINES AND IDENTIFIERS
Package identifier
Package outlines
T1
TO-254
T2
TO-205AF (TO-3)
T3
TO-257
T8
TO-258AA
U1
SMD-1
U2
SMD-2
U3
SMD-.5
U4
SMD-.22
U5
LCC 16-20 pin
U6
LCC 28 pin
U7A
DO-217aa SLUGGER
U7B
DO-217ab
U8
SMD-.2
PE1
SOT23
D1
TO-254, no tab and lead formed for surface mount application
D3
TO-257, no tab and lead formed for surface mount application
U
LCC, 3 leads,6 leads
UA
LCC 4 or 6 leads
UAC
LCC 4 or 6 leads with a ceramic lid
UB
LCC 4 leads
UBN
LCC 3 leads with a isolated lid
UBC
LCC 4 leads with a ceramic lid
UBCN
LCC 3 leads with a ceramic isolated lid
UR
Round end surface mount diodes
URS
Surface mount diode with one round and one square endcap
US
Square end surface mount diodes
UTK1
ThinKey 1
UTK2
ThinKey 2
UTK3
ThinKey 3
UTK4
ThinKey 4
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