33
ELCO
Type B Vertical Male Feed-To
for Backplanes
Series 8071
• 125 signal contacts and up to 50 ground shield contacts in 5 or
5+2 rows of 25 positions
• Designed for gas tight press-fit installation
• This connector should be used in conjunction with Style A
connector
• Twelve different contact styles are available for customizing
connector to exact specifications (see page 65)
17 8071 125 507 XXX = Type B25 125 signal contacts, no ground contacts L1
17 8071 125 518 XXX = Type B25 125 signal contacts, no ground contacts L2
17 8071 175 000 XXX = Type B25 125 signal contacts and 50 ground contacts L2,3
17 8071 175 503 XXX = Type B25 125 signal contacts and 50 ground contacts L1,3
CONTACT DETAIL
P.C.B.
AREA
CONTACT
AREA
CONTACT
0
+0.2
9.8
0
+0.2
8.3
3.5
3.5
AREA
CONTACT
0
+0.2
11.3
3.5
12 3
a
b
c
d
e
f
z
25 1
222222222222222222222222 222222222222222222222222
222222222222222222222222 222222222222222222222222 222222222222222222222222
(CONNECTOR SIDE SHOWN)
CONTACT LAYOUT
a
b
c
d
e
f
z333 3333333 33333333333 33
3
3
33333333333 333333333333
25 1
111111111111 111111111111
111111111111 111111111111111111111111 111111111111111111111111 111111111111111111111111
3
3
1
1
1
1
1111111111111
333 3333333 33333333333 33
3
3
33333333333
2
2
2
2
2
3
3333333333333
13.45
15.4
3.0
000
503
25
175-ø0.6
2.0 ±0.1 Typ.
2.0 ±0.1 Typ.
48.0 ±0.1
±0.05
2 X 6 = 12.0 ±0.1
(COMPONENT SIDE)
RECOMMENDED P.C. BOARD LAYOUT
z
a
f
e
d
c
b
1
9Z21XX
XX
1
1
25
f
e
d
c
b
a
z
49.9
0.95max.
PITCH 2.0
48.0
PITCH 2.0
2X4=8.0
Plating Code Contact Area Press-fit Area Under Coat
833 0.1µm min. Au.65µm Pd/Ni 1.5-3.0µm Solder Nickel 1.2-3.0µm
863 0.76µm min. Au 1.5-3.0µm Solder Nickel 1.2-3.0µm
XXX =
000
503
507
518
