Diodes ZXBM1021 - Manual (Page 23)

ZXBM1021
Document number: DS36322 Rev. 2 - 2
23 of 25
www.diodes.com
April 2014
© Diodes Incorporated
ZXBM1021
Package Outline Dimensions
(All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
(1) Package type: U-QFN4040-20
(2) Package Type: QSOP-20
U-QFN4040-20
Dim Min Max Typ
A 0.55 0.65 0.60
A1 0 0.05 0.02
A3 - - 0.15
b 0.20 0.30 0.25
D 3.95 4.05 4.00
D2 2.40 2.60 2.50
E 3.95 4.05 4.00
E2 2.40 2.60 2.50
e 0.50 BSC
L 0.35 0.45 0.40
Z - - 0.875
All Dimensions in mm
QSOP-20
Dim Min Max Typ
A 1.55 1.73 -
A1 0.10 0.25 -
A2 1.40 1.50 -
b 0.20 0.30 -
c 0.18 0.25 -
D 8.56 8.74 -
E 5.79 6.20 -
E1 3.81 3.99 -
e 0.635 BSC
h 0.254 0.508 -
L 0.41 1.27 -
L1 1.03 REF
L2 0.254 BSC
R 0.0762 - -
R1 0.0762 - -
ZD 1.47 REF
θ 0° 8° -
θ1 5° 15° -
θ2 0° - -
All Dimensions in mm
D
D2
E
b
L
E2
A
A1
A3
(Pin #1 ID)
Seating Plane
Z (8x)
e
D
E1 E
ZD
E/2
E1/2
e
b 20x
PIN 1
A2
A
A1
SEE DETAIL 'A'
L
L1
GAUGE PLANE
SEATING PLANE
L2
1
1
h
h
R1
R
2
c
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