HA17L431LP Hitachi Semiconductor, HA17L431LP Datasheet - Page 5

• Manufacturer Part Number: HA17L431LP
• Description: High-Precision Variable Shunt Regulators
• Manufacturer: Hitachi Semiconductor

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.
Markings
(1), (2)
(3)
(a), (b), (c)
(1), (2)
(3)
(4)
(5)
HA17L431LP
HA17L431UP, HA17L432UP
HA17L431LP
Note: The boxes shown for (1) to (5) and (a) to (c) in the figure are only to indicate the position of the
Type of Marking
Characters
Bar mark
Type of Marking
Characters
(1)
(a)
4
characters, and are not actually marked on the package.
(2)
(b)
L
(3)
(c)
Meaning
Model code: 4L
Production month code:
Production year code:
Notes: 1. 1 indicates a bar, and 0 indicates no bar.
Meaning
Model code: 4D (HA17L431UP), 4E (HA17L432UP)
Production year code: The last digit of the year.
Production month code:
HITACHI management code
Production
month
Code
Production
year
(a)
(b)
(c)
Production
month
Code
Band Mark
HA17L431UP
2. Repeated every 8 years from 2006 on.
JAN
JAN
’98
A
A
1
0
1
(1)
(3)
4 D
FEB
FEB
’99
B
B
1
1
0
(2)
(4)
MAR
2000
MAR
C
C
1
1
1
(5)
2001
APR
APR
D
D
0
0
0
MAY
2002
MAY
E
E
0
0
1
Band Mark
HA17L432UP
2003
JUN
JUN
F
F
0
1
0
2004
JUL
JUL
G
G
0
1
1
AUG
2005
AUG
(1)
(3)
4
HA17L431 Series
H
H
1
0
0
(2)
(4)
E
SEP
SEP
J
J
(5)
OCT
OCT
K
K
NOV
NOV
L
L
DEC
DEC
M
M
5