Keithley 7021 Instruction Manual page 92

4
D
.150
.150
(.991)
(.225)
(1.975)
C
B
A
4
3
9.570
+.003
-.003
9.420
(8.720)
(6.363)
(5.960)
(2.463)
.040
9.72
3
2
(.990)
(2.960)
HOLE SIZE LEGEND
/ FIGURE / HOLESIZE / QTY /
.015-P
.035-P
.040-P
.043-P
.110-P
.125-P
.128-P
.093-N
.104-N
.125-N
DIM ARE IN IN. UNLESS OTHERWISE NOTED
KEITHLEY
DIM. TOL. UNLESS OTHERWISE SPECIFIED
KEITHLEY INSTRUMENTS INC.
XX=+.01 ANG.=+1
CLEVELAND, OHIO 44139
XXX=+.005 FRAC.=+1/64
2
1
LTR. ECA NO. REVISION
A
RELEASED
NOTES:
1. MUST COMPLY TO KEITHLEY SPECIFICATION #QS-354.
2. BOARD MUST BE FABRICATED USING UL APPROVED
MATERIAL AND PROCESSES.
3. SUBSTRATE: NEMA GRADE FR4
BASE COPPER (OZ.): 1 OZ.
2 OZ.
FINISHED COPPER PER SIDE (OZ.):
1 OZ.
BASE INNER LAYER COPPER (OZ.):
+.007
.062
FINISHED BOARD THICKNESS (IN.):
-.003
4. SUPPLIED DATA:
7021-173-06,-05,-04,-03,-02,-01A
ETCH PER ARTWORK:
N A
DRILL PAD MASTER:
FILE
NC DRILL:
7021-174-06,-01A
SOLDERMASK ARTWORK:
SOLDERMASK ARTWORK CONTAINS SELECTED AREAS OF
SOLDERMASK RELIEF ON GUARD TRACES.
SILKSCREEN ARTWORK: 7 0 2 1 - 1 7 5 - 0 6 A
5. SOLDERMASK: LEARONAL OR DYNACHEM PHOTOIMAGEABLE
- 0 6
6. SILKSCREEN COLOR: WHITE SIDES:
7. VENDOR UL APPROVAL LOGO ETCHING LOCATION.
8. VENDOR DATE CODE ETCHING LOCATION.
9. ELECTRICAL TEST VERIFICATION STAMP LOCATION.
4.25
10. QUOTING DATA:
PTH
TECHNOLOGY TYPE:
.010
MINIMUM TRACE SIZE:
.025
MINIMUM PAD SIZE:
.010
MINIMUM COPPER TO COPPER SPACING:
SEE NOTE #9 (SIDE -01)
SEE NOTE #7 (SIDE -01)
SEE NOTE #8 (SIDE -01)
73
37
269
4
2
1
4
2
2
2
M O D E L
DATE SCALE
1/3/97 1:1
TITLE
HOLESIZE
D R N APPR.
C A B C O N N E C T O R B O A R D
NO.
C
DO NOT SCALE THIS DRAWING 7 0 2 1 - 1 7 2
1
ENG. DATE
D
C
B
A
NEXT ASSEMBLY QTY.
USED ON
1 OF 1
P G