12
DEMO MANUAL DC252
DESIGN-READY SWITCHER
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
LINEAR TECHNOLOGY CORPORATION 1999
dc252f LT/TP 1199 500 • PRINTED IN USA
PCB LAYOUT A D FIL
U
W
Bottom Side Paste Mask
Component Paste Mask
PC FAB DRAWI G
U
Bottom Side Silkscreen
Bottom Side Copper (Layer 4)
NUMBER
SYMBOL
DIAMETER
OF HOLES
PLATED
A
0.100
8
YES
B
0.070
2
NO
C
0.065
5
YES
D
0.045
18
YES
E
0.035
25
YES
F
0.025
2
YES
G
0.020
15
YES
A
A
A
A
B
B
C
C
C
D
D
D
D
D
D
E
E
G
G
G G G
G
G
G
G
G
G
G
G
G
G
E
E
E
E
E
E
E
E
E E
10 PLCS
E E E
E
E
E
E
E
D D
D D D
D
D
D
F
F
D
D D D
C
C
A
A
A
A
2.75"
2.10"
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL DIMENSIONS ARE IN INCHES,
±
0.003. FINISHED HOLE SIZES ARE +0.003/–0.
2. FINISHED MATERIAL IS FR4, 0.062 THICK, 1 OZ Cu, 4 LAYERS.
PLATED HOLE WALL THICKNESS 0.001 MIN. INTERNAL LAYERS 1 OZ Cu.
3. PROCESS AND PLATING: SMOBC
4. SOLDERMASK BOTH SIDES USING GLOSSY GREEN LPI.
5. SILKSCREEN WHITE NONCONDUCTIVE INK BOTH SIDES.
252 PC Fab Dwg
