Diodes AP2552/ AP2553/ AP2552A/ AP2553A - Manual (Page 13)

AP2552/AP2553/AP2552A/AP2553A
Document number: DS35404 Rev. 8 - 2
13 of 16
www.diodes.com
February 2014
© Diodes Incorporated
AP2552/ AP2553/ AP2552A/ AP2553A
Marking Information
(cont.)
(2) U-DFN2020-6
( Top View )
XX Y : Year : 0~9
X : Internal Code
XX : Identification Code
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
Y W X
Device Package Identification Code
AP2552FDC U-DFN2020-6 BJ
AP2553FDC U-DFN2020-6 BK
AP2552AFDC U-DFN2020-6 BM
AP2553AFDC U-DFN2020-6 BN
Package Outline Dimensions
(All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
(1) Package Type: SOT26
(2) Package Type: U-DFN2020-6
SOT26
Dim Min Max Typ
A 0.35 0.50 0.38
B 1.50 1.70 1.60
C 2.70 3.00 2.80
D   0.95
H 2.90 3.10 3.00
J 0.013 0.10 0.05
K 1.00 1.30 1.10
L 0.35 0.55 0.40
M 0.10 0.20 0.15
 0° 8° 
All Dimensions in mm
U-DFN2020-6
Type C
Dim Min Max Typ
A 0.57 0.63 0.60
A1 0.00 0.05 0.02
A3 –– –– 0.15
b 0.25 0.35 0.30
D 1.95 2.075 2.00
D2 1.55 1.75 1.65
E 1.95 2.075 2.00
E2 0.86 1.06 0.96
e –– –– 0.65
L 0.25 0.35 0.30
Z –– –– 0.20
All Dimensions in mm
A
M
J
L D
B C
H
K
D
D2
E
e b
L
E2
A A1
A3
Seating Plane
Pin #1 ID
Z (4x)