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10-503140-032 Datasheet, PDF (251/437 Pages) Amphenol Corporation – The Interconnection Leader
AmpAheeronspoacle
Circular Connectors – PCB Contacts
Insert Arrangements
Insert Arrangement #20-35 / 21-35
Connector Type:
Insert Designation:
JT
LJT
Tri-Start
MIL-DTL-38999 MIL-DTL-38999 MIL-DTL-38999
Series II
Series I
Series III
20-35
21-35
21-35
Number of
Contacts
79
Contact
Size
22D
Service
Rating
M
Contact Locations
Front face of pin insert shown
1
31
51
79
21
71
61
41
11
Contact Hole Locations
Contact
Number
Location
X Axis
Y Axis
1
+.053
+.426
2
+.146
+.404
3
+.232
+.362
4
+.306
+.302
5
+.365
+.227
6
+.406
+.141
7
+.427
+.048
8
+.427
–.048
9
+.406
–.141
Contact Hole Locations
Contact
Number
Location
X Axis
Y Axis
10
+.365
–.227
11
+.306
–.302
12
+.232
–.362
13
+.146
–.404
14
+.053
–.426
15
–.053
–.426
16
–.146
–.404
17
–.232
–.362
18
–.306
–.302
19
–.365
–.227
20
–.406
–.141
21
–.427
–.048
22
–.427
+.048
23
–.406
+.141
24
–.365
+.227
25
–.306
+.302
26
–.232
+.362
27
–.146
+.404
28
–.053
+.426
29
  .000
+.323
30
+.098
+.322
31
+.184
+.280
32
+.258
+.220
33
+.311
+.141
34
+.332
+.048
35
+.332
–.048
36
+.311
–.141
37
+.258
–.220
38
+.184
–.280
39
+.098
–.322
40
  .000
–.347
41
–.098
–.322
42
–.184
–.280
43
–.258
–.220
44
–.311
–.141
Contact Hole Locations
Contact
Number
Location
X Axis
Y Axis
45
–.332
–.048
46
–.332
+.048
47
–.311
+.141
48
–.258
+.220
49
–.184
+.280
50
–.098
+.322
51
–.048
+.241
52
+.048
+.241
53
+.134
+.199
54
+.208
+.139
55
+.237
+.048
56
+.237
–.048
57
+.208
–.139
58
+.134
–.199
59
+.048
–.241
60
–.048
–.241
61
–.134
–.199
62
–.208
–.139
63
–.237
–.048
64
–.237
+.048
65
–.208
+.139
66
–.134
+.199
67
–.048
+.146
68
+.048
+.146
69
+.125
+.090
70
+.155
  .000
71
+.125
–.090
72
+.048
–.146
73
–.048
–.146
74
–.125
–.090
75
–.155
  .000
76
–.125
+.090
77
  .000
+.053
78
+.048
–.029
79
–.048
–.029
250
All dimensions for reference only. For alternate rotations see page 240.
Note: Shown in this catalog are the most common insert patterns for PCB applications. For availability of other arrangements, consult Amphenol Corp., Sidney, NY.
Contact Amphenol Aerospace for more information at 800-678-0141 • www.amphenol-aerospace.com