IPC-CM-770D-1996 - 第169页

Januaw 1996 IPC-CM-770 20.0 [.785] 20.0 [.787] 20.0 [.790] 20.05 [.790] 20.1 [.791] 20.1 9 [.795] 20.2 [.795] 20.3 [.800] 20.32 [.800] 20.4 [.800] 20.5 [.81 O] 20.57 [.81 O] 20.6 [.811] 20.7 [.815] 20.8 [.819] 20.9 [.823…

100%1 / 176
IPC-CM-770
Januaty
1996
Appendix A
Metric Conversion Tables
-
mm
to Inch Conversion
Whenever possible, metric dimensions have been used in are added together, the conversion concept may differ from
this standard. In some instances minor inconsistencies requirement to requirement. (In some instances, the number
exist, specifically where information is provided that is is rounded higher and, in some, lower.
taken from other industry or government standards where
hard conversion was not possible. In addition, in order to
maintain mathematical continuity between dimensions that
Shown below are metric to inch conversions. Dimensions
noted in bold script are soft conversions.
o.06
mm
0.08 [.O031
0.1 [.O041
0.1 3 [.O051
0.1
5
[.O061
0.2 [.O081
0.25
[.O1
O]
0.3
[.O1
21
0.35
[.O1
41
0.38
[.O1
51
0.4
[.O1
61
0.46
[.O1
81
0.48
[.O1
91
0.5
[.O201
0.56 [.O221
0.6 [.O241
0.63 [.O251
0.7 [.O281
0.75 [.O301
0.762 [.O301
0.8 [.O321
0.85 [.O331
0.9 [.O361
l.0Q
mm
1
.O
[.O401
1
.O2 [.O401
1.1
[.O441
1.1
4 [.O451
1.2 [.O481
1.27 [.O501
1.3 [.O511
1.4 [.O551
1.5 [.O591
1.5 [.O601
1.6 [.O631
1.7 [.O671
1.8 [.O701
1.8 [.O711
1.9 [.O751
2.00
mm
2.0 [.O791
2.0 [.O801
2.1 [.O831
2.2 [.O871
2.3 [.O901
2.4 [.O951
2.5 [.O981
2.5
[.loo]
2.54 [.loo]
2.6 [.l O21
2.7 [.l O61
2.8 [.11 O]
2.9 [.114]
3-06
mm
3.0 [.118]
3.05 [.120]
3.1 [.122]
3.2 [.126]
3.3 [.130]
3.4 [.134]
3.5 [.138]
3.6 [.140]
3.6 [.142]
3.7 [.146]
3.8 [.150]
3.9 [.154]
4,QO
mm
4.0
[.
1581
4.1 [.162]
4.2
[.
1661
4.25
[.
1671
4.3
[.
1701
4.4 [.174]
4.5
[.
1781
4.6 [.181]
4.6
[.
1821
4.7 [.186]
4.8 [.188]
4.8 [.190]
4.9 [.190]
4.9
[.
1951
5.QO
mm
5.0
[.195]
5.0
[.198]
5.0
[.200]
5. 08 [.200]
5.1 [.200]
5.2 [.205]
5.3 [.209]
5.4 [.21
O]
5.4 [.213]
5.5 [.217]
5.6 [.220]
5.7 [.224]
5.8 [.228]
5.9 [.232]
6,OQ
mm
6.0 [.235]
6.0 [.236]
6.1 [.240]
6.2 [.244]
6.3 [.248]
6.4 [.252]
6.5 [.256]
6.6 [.260]
6.7 [.264]
6.8 [.265]
6.8 [.268]
6.9 [.270]
3.06
mm
7.0 [.275]
7.0 [.276]
7.1 [.280]
7.2 [.284]
7.3 [.287]
7.4 [.290]
7.5 [.295]
7.5 [.300]
7.6 [.299]
7.6 [.300]
7.62 [.300]
7.7 [.300]
7.8 [.307]
7.9 [.311]
8,QO
mm
8.0 [.315]
8.05 [.317]
8.1 [.319]
8.1 3 [.320]
8.2 [.323]
8.3 [.328]
8.4 [.330]
8.5 [.335]
8.6 [.335]
8.6 [.339]
8.7 [.340]
8.8 [.345]
8.8 [.347]
8.9 [.350]
9.00
mm
9.0 [.354]
9.1 [.358]
9.2 [.362]
9.28 [.365]
9.3 [.365]
9.4 [.370]
9.5 [.378]
9.6 [.378]
9.6 [.380]
9.65 [.380]
9.7 [.382]
9.78 [.385]
9.8 [.386]
9.9 [.390]
1
Q,OO
mm
10.0 [.390]
10.0 [.395]
10.03 [.395]
10.1 [.398]
10.1 6 [.400]
10.2 [.400]
10.3 [.406]
10.4 [.41 O]
10.5 [.413]
10.6 [.415]
10.67 [.420]
10.7 [.421]
10.8 [.425]
10.9 [.430]
If,#Q
mm
11
.O
[.433]
1
l.
1
[.435]
11.2 [.441]
11.3 [.445]
11.4 [.450]
11.5 [.453]
11.56 [.453]
11.6 [.460]
11.61 [.457]
11.7 [.461]
11.8 [.465]
11.86 [.467]
11.9 [.469]
11.94 [.470]
I
2.00
mm
12.0 [.470]
12.0 [.472]
12.0 [.475]
12.1 [.476]
12.1 [.480]
12.1 9 [.480]
12.2 [.480]
12.3 [.484]
12.32 [.485]
12.4 [.488]
12.5 [.490]
12.57 [.495]
12.6 [.495]
12.7 [.500]
12.8 [.504]
12.9 [.508]
12.95 [.51 O]
13.00
mm
13.0 [.51
O]
13.1 [.516]
13.2 [.520]
13.21 [.520]
13.3 [.525]
13.4 [.530]
13.46 [.530]
13.5 [.530]
13.59 [.535]
13.6 [.535]
13.7 [.539]
13.8 [.540]
13.8 [.544]
13.9 [.547]
I
4.~0
mm
14.0 [.550]
14.0 [.551]
14.1 [.555]
14.2 [.559]
14.3 [.563]
14.4 [.565]
14.48 [.570]
14.5 [.570]
14.6 [.575]
14.7 [.579]
14.73 [.580]
14.8 [.583]
14.86 [.585]
14.9 [.587]
f5AO
mm
15.0 [.590]
15.1 [.595]
15.1
1
[.595]
15.2 [.598]
15.2 [.600]
15.24 [.600]
15.3 [.602]
15.4 [.606]
15.5 [.610]
15.6 [.615]
15.7 [.618]
15.75 [.620]
15.8 [.622]
15.9 [.626]
16.00
mm
16.0 [.630]
16.1 [.634]
16.2 [.638]
16.3 [.640]
16.34 [.643]
16.4 [.645]
16.5 [.650]
16.6 [.656]
16.68 [.657]
16.7 [.658]
16.8 [.661]
16.9 [.665]
IT.W
mm
17.0 [.665]
17.0 [.668]
17.0 [.670]
17.02 [.670]
17.1 [.673]
17.2 [.677]
17.27 [.680]
17.3 [.681]
17.4 [.685]
17.5 [.689]
17.5 [.690]
17.6 [.690]
17.6 [.693]
17.65 [.695]
17.7 [.700]
17.78 [.700]
17.8 [.701]
17.9 [.705]
18.00
mm
18.0 [.709]
18.0 [.71
O]
18.03 [.71 O]
18.05 [.71
O]
18.1 [.713]
18.2 [.717]
18.29 [.720]
18.3 [.720]
18.4 [.725]
18.5 [.730]
18.54 [.730]
18.6 [.730]
18.7 [.736]
18.8 [.740]
18.85 [.742]
18.9 [.744]
19.00
mm
19.0 [.745]
19.0 [.750]
19.05 [.750]
19.1 [.751]
19.2 [.756]
19.25 [.758]
19.3 [.760]
19.4 [.765]
19.5 [.766]
19.5 [.768]
19.56 [.770]
19.6 [.770]
19.7 [.776]
19.8 [.780]
19.9 [.783]
19.94 [.785]
6-32
COPYRIGHT Association Connecting Electronics Industries
Licensed by Information Handling Services
COPYRIGHT Association Connecting Electronics Industries
Licensed by Information Handling Services
Januaw
1996
IPC-CM-770
20.0 [.785]
20.0 [.787]
20.0 [.790]
20.05 [.790]
20.1 [.791]
20.1 9 [.795]
20.2 [.795]
20.3 [.800]
20.32 [.800]
20.4 [.800]
20.5 [.81
O]
20.57 [.81 O]
20.6 [.811]
20.7 [.815]
20.8 [.819]
20.9 [.823]
21
.ao
mm
21
.O
[.825]
21
.O
[.830]
21.1 [.831]
21.2 [.835]
21.3 [.840]
21.4 [.840]
21.4 [.842]
21.5 [.845]
21.6 [.850]
21.7 [.854]
21.8 [.858]
21.9 [.862]
22.00
mm
22.0 [.865]
22.0 [.866]
22.0 [.868]
22.1 [.870]
22.2 [.874]
22.3 [.878]
22.4 [.880]
22.5 [.886]
22.6 [.890]
22.7 [.894]
22.8 [.898]
22.86 [.900]
22.9 [.900]
23.00
mm
23.0 [.905]
23.1 [.909]
23.1 2 [.91 O]
23.2 [.915]
23.3 [.917]
23.4 [.921]
23.5 [.925]
23.6 [.929]
23.7 [.933]
23.8 [.937]
23.88 [.940]
23.9 [.940]
24.00
mm
24.0 [.945]
24.1 [.950]
24.1 2 [.950]
24.2 [.950]
24.2 [.953]
24.3 [.957]
24.38 [.960]
24.4 [.960]
24.5 [.966]
24.6 [.970]
24.64 [.970]
24.7 [.972]
24.8 [.976]
24.9 [.980]
25.09
mm
25.0 [.980]
25.02 [.985]
25.1 [.988]
25.2 [.995]
25.27 [.995]
25.3 [.996]
25.4 [l .O001
25.5 [l .O041
25.6 [l .O081
25.65 [l .O1 O]
25.7 [l .O1 21
25.8 [l .O1 61
25.9 [l .O201
26.00
mm
26.0 [1.025]
26.1 [l .O281
26.2 [l .O311
26.3 [l .O351
26.4 [1.040]
26.5 [1.040]
26.5 [1.045]
26.6 [1.050]
26.65 [1.050]
26.7 [1.050]
26.8 [l .O551
26.9 [l .O591
27.00
mm
27.0 [1.060]
27.0 [l .O631
27.1 [1.065]
27.2 [1.070]
27.3 [l .O751
27.4 [1.080]
27.5 [l .O831
27.6 [l .O871
27.7 [1.090]
27.8 [l .O951
27.9 [l .O981
27.94 [1.100]
28.00
mm
28.0
[1.1
O51
28.1 [1.1 O61
28.2 [1.110]
28.3
[1.115]
28.4 [1.120]
28.5 [1.122]
28.6 [1.125]
28.7 [1.130]
28.8 [1.134]
28.9 [1.138]
28.91 [1.139]
29.00
mm
29.0 [1.140]
29.1 [1.145]
29.2 [1.150]
29.3
[1.155]
29.4 [1.158]
29.5 [1.162]
29.6 [1.165]
29.7 [1.170]
29.8 [1.173]
29.9 [1.177]
30.00
mm
30.0 [1.180]
30.1 [1.185]
30.2 [1.190]
30.3 [1.193]
30.35 [1.195]
30.4 [1.200]
30.48 [1.200]
30.5 [1.200]
30.6 [1.205]
30.7 [1.21
O]
30.75 [1.21 O]
30.8 [1.213]
30.9 [1.217]
al
.o0
mm
31
.O
[1.220]
31.1
[1.225]
31.2 [1.230]
31.3 [1.232]
31.4 [1.235]
31.5 [1.240]
31.6 [1.245]
31.7 [1.250]
31.75 [1.250]
31.8 [1.252]
31.9 [1.256]
32.00
mm
32.0 [1.260]
32.1 [1.264]
32.2 [1.265]
32.25 [1.270]
32.3 [1.270]
32.4 [1.275]
32.5 [1.280]
32.6 [1.285]
32.7 [1.287]
32.75 [1.290]
32.8 [1.290]
32.9 [1.295]
33.3
21.31 l]
38.00
mm
33.4 [1.315]
33.5
[1.320]
33.6 [1.323]
33.7 [1.325]
33.8 [1.330]
33.9 [1.335]
38.0 [1.496]
38'1
'5001
38'2
[l
'5051
38.3 [1.508]
38.4 [1.512]
38.5
[1.515]
34.0
[1.335]
38.7 [1.5251
34.02 [1.339]
38-8
-5281
34.00
mm
38.6 [1.520]
34.1 rl.3401
38.9 [1.530]
34.2 i1.3453
39.00
mm
34.3 [1.350]
34.4 [1.354]
34.5 [1.358]
34.56 [1.361]
34.6 [1.362]
34.7 [1.365]
34.8 [1.370]
34.9 [1.375]
'
39'0
'5351
39.1
[l
.5401
39.2
[l
.5401
39.3
[l
.5451
39.4
[l
.5501
39'5
'5551
39.6
[l
.5601
39.7 [1.563]
35.0 [1.378]
39.9
[l
.5701
35.1
[1.380]
49,90
mm
35-18 [lm3851 40.0
[I
,5751
35.2 [1.3851 40.1 [1.580]
35.3 [1-3901 40.15 [1.580]
35.4 [1.3951 40.2 [1.583]
35-43 [1-3951 40.3 [1.587]
35.5
[1.3981 40.4 [1.590]
35-6
m4021
40.5 [1.595]
35.7 [lm4051 40.6
[I
,6001
35-8
m41
O1
40.7 [1.602]
35.9 [1.4151 40.8 [1.605]
40.9 [1.61 O]
35,90
mm
39.8 [1.565]
36.09
mm
36.0 [1.415]
41
,O9
mm
36.1 [I .421]
41
.O
[1.615]
36.2 [1.425]
41.1 [1.620]
36.3 [1.430]
41.1 5 [1.620]
36.4 [1.435]
41.2 [1.622]
36.5 [1.440]
41.3 [1.625]
36.6 [1.440]
41.4 [1.630]
36.6 [1.441]
41.5 [1.635]
36.7 [I .445]
41.6 [1.638]
36.8 [1.450]
41.65 [1.640]
36.9 [I .453] 41.7 [1.640]
37*09
mm
41.9 [1.650]
41.8 [1.645]
37.0 [1.445]
37.1 [1.460]
42.00
mm
37.2 [1
42.0 [1.655]
37.3 [1.470]
42.1 [1.655]
37.35 [1 .470]
42.1 5 [1.660]
37.4 [1.473]
42.1 8 [1.661]
37.5 [1.476]
42.2 rl.6601
42.3 [1.665]
42.4 [1.670]
42.5 [1.675]
42.6 [1.677]
42.7 [1.680]
47.5 [1.870]
47.6 [1.875]
47.7 [1.878]
47.8 [1.880]
47.9 rl.8851
43.0 [1.695]
43.05 [1.695]
43.1 [1.697]
43.2 [1.700]
43.3 [1.705]
43.4 [1.71
O]
43.5 [1.713]
43.6 [1.715]
43.7 [1.720]
48.0 [1.890]
48.1 [1.895]
48.2 [1.900]
48.3 [1.900]
48.3 [1.902]
48.4 [1.905]
48.5 [1.91
O]
48.6 [1.915]
48.7 [1.917]
48.8 [1.920]
48.9 rl.9251
43.8 [1.725]
43.9 [1.728]
Ia
49-00
mm
44-00
mm
49.0 [1.930]
49.1 [1.933]
49.2 [1.935]
49.3 [1.940]
49.4 [1.945]
49.5 [1.950]
49.6 [1.953]
49.7 [1.955]
49.8 [1.960]
49.9 [1.965]
44'0
[l
'7321
44'1
[l
'7351
44'2
'7401
44'3
[l
'7451
44'4
'7481
44'5
[l
'7501
44'6
[l
'7551
44'7
'7601
44.8 [1.765]
44.9 [1.768]
50.00
mm
45,OQ
mm
50.0
[1.970]
45.0 [1.772]
50-1
[1-9721
45.1 [1.775]
50.2
[l
.9751
45.2 [1.780]
50-3
-9801
45.3 [1.783]
50.4
[l
.9851
45.4 [1.787]
50-5
45.5 [1.790]
50-6
[1-9921
45.6 [1.795]
50.7
[l
.9951
45.7 [1.800]
50-8
[2-ooo]
45.8 rl.8031
50.9 [2.004]
45.9 i1.807j
46,OQ
mm
46.0 [1.81
O]
46.1 [1.815]
46.2 [1.820]
46.3 [1.823]
46.4 [1.825]
46.5 [1.830]
46.6 [1.835]
46.7 [1.840]
46.8 [1.843]
46.9 [1.845]
43.06
mm
47.0 [1.850]
47.1
[
1.8551
47.2 [1.860]
47.3 [1.862]
47.4 [1.865]
51
.ao
mm
51.2 [2.015]
51.8 [2.039]
51.8 [2.040
52.34 [2.061]
53.2 [2.095]
54.3 [2.140]
6-33
COPYRIGHT Association Connecting Electronics Industries
Licensed by Information Handling Services
COPYRIGHT Association Connecting Electronics Industries
Licensed by Information Handling Services
Standard Improvement Form
IPC-CM-770
The purpose of this form is to provide the Individuals or companies are invited to
If you can provide input, please complete
Technical Committee of PC with input submit comments to PC. All comments
this form and return to:
from the industry regarding usage of will be collected and dispersed to the
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Northbrook,
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1.
I
recommend changes to the following:
-
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