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HA17431H Datasheet, PDF (5/15 Pages) Hitachi Semiconductor – Shunt Regulator
HA17431H Series
MPAK-5 (5 pin), MPAK (3 pin) and UPAK Marking Patterns
The marking patterns shown below are used on MPAK-5, MPAK and UPAK products. Note that the
product code and mark pattern are different. The pattern is laser-printed.
HA17431HLP
NC
NC
HA17431HUP
(1) (2) (4)
4H
(a) (b) (c)
REF
A
4U
(1) (2)
REF A
K Band mark
K
(3) (4) (5)
HA17432HUP
K
AA
4W
(1) (2)
Band mark
REF
(3) (4) (5)
HA17431HLTP
A
HA17432HLTP
A
(1) (2) (4)
3C
(a) (b) (c)
(1) (2) (4)
3D
(a) (b) (c)
REF
K
K
REF
Notes: 1. Boxes (1) to (5) in the figures show the position of the letters or numerals, and are not actually
marked on the package.
2. The letters (1) and (2) show the product specific mark pattern.
Product
(1)
(2)
HA17431HLP
4
H
HA17431HUP
4
U
HA17432HUP
4
W
HA17431HLTP
3
C
HA17432HLTP
3
D
3. The letter (3) shows the production year code (the last digit of the year) for UPAK products.
4. The bars (a), (b) and (c) show a production year code for MPAK-5 and MPAK products as shown
below. After 2009 the code is repeated every 8 years.
Year
2001
2002
2003
2004
2005
2006
2007
2008
(a)
None None None None Bar
Bar
Bar
Bar
(b)
None None Bar
Bar
None None Bar
Bar
(c)
None Bar
None Bar
None Bar
None Bar
5. The letter (4) shows the production month code (see table below).
Production month Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
Marked code
A B C D E F GH J K L M
6. The letter (5) shows manufacturing code. For UPAK products.
Rev.0, Sep. 2001, page 5 of 15