SR12
PROTECTION PRODUCTS
Outline Drawing - SOT-143
D
A
e
H
DIMENSIONS
.031
.048
1.22
0.80
.000
.006 0.013
0.15
.020
.011
0.30
0.51
.029
.037
0.76
0.94
.008
.003
0.08
0.20
4
e/2
3
B
SEATING
PLANE
C
GAUGE
PLANE
0.25
L
0
c
DIM
A
A1
A2
b
b1
c
INCHES MILLIMETERS
MIN NOM MAX MIN NOM MAX
- -
- -
.029 .035 .042 0.75 0.90 1.07
- -
- -
- -
E1
E
DETAIL A
L1
D
E
E1
e
.110
.082
.047
.114
.093
.051
.075
.120
.104
.055
2.80 2.90 3.04
2.10 2.37 2.64
1.20 1.30 1.40
1.92 BSC
e1
.008 0.20 BSC
L
L1
.015 .020
(.021)
.024
0.40
0.50
(0.54)
0.60
e1
1
2
bxN
bbb
C A B
SIDE VIEW
SEE DETAIL A
N
0
aaa
bbb
ccc
4 4
- -
.006 0.15
.008 0.20
.004 0.10
A2
A
4X
ccc C
SEATING PLANE
b1
aaa
C A B
A1
C
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. DATUMS -A- AND -B-
TO BE DETERMINED AT DATUM PLANE -H-
3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
4. REFERENCE JEDEC STD TO-253, VARIATION D.
Land Pattern - SOT-143
X1
X1
Y
DIMENSIONS
DIM
INCHES
MILLIMETERS
Z
C
G
E2
E1
C
E1
E2
G
(.087)
.076
.068
.031
(2.20)
1.92
1.72
0.80
X1
X2
.039
.047
1.00
1.20
X2
X1
Y
Y
Z
.055
.141
1.40
3.60
NOTES:
1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
2. REFERENCE IPC-SM-782A.
? 2005 Semtech Corp.
7
www.semtech.com
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