HA17L431P Datasheet, PDF (5/11 Pages) Hitachi Semiconductor – High-Precision Variable Shunt Regulators

HA17L431 Series
Marking Pattern on MPAK-5 Models (HA17L431LP) and
UPAK Models (HA17L431UP, HA17L432UP)
Because of the small package size, the following marking patterns are used on MPAK-5 and UPAK
models. Note that the product code and marking pattern are different. The patterns are laser-marked.
HA17L431LP
(1) (2) (3)
4L
(a) (b) (c)
HA17L431UP
4D
(1) (2)
HA17L432UP
4E
(1) (2)
Band Mark
Band Mark
(3) (4) (5)
(3) (4) (5)
Note: The boxes shown for (1) to (5) and (a) to (c) in the figure are only to indicate the position of the
characters, and are not actually marked on the package.
Markings
• HA17L431LP
Type of Marking Meaning
(1), (2) Characters
Model code: 4L
(3)
Production month code:
Production
month
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code
ABCDE FGH J K LM
(a), (b), (c) Bar mark
Production year code:
Production
year
’98 ’99 2000 2001 2002 2003 2004 2005
(a)
11100001
(b)
01100110
(c)
10101010
Notes: 1. 1 indicates a bar, and 0 indicates no bar.
2. Repeated every 8 years from 2006 on.
• HA17L431UP, HA17L432UP
Type of Marking Meaning
(1), (2) Characters
Model code: 4D (HA17L431UP), 4E (HA17L432UP)
(3)
Production year code: The last digit of the year.
(4)
Production month code:
Production
month
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code
ABCDE FGH J K LM
(5)
HITACHI management code
5