PA-SOD-2808-xx Data Sheet
8-28 pin SO socket/28 pin SO receptacle
(SO-Plugs NOT included)
Supported Device/Footprints
Using this adapter, various pin count SO packages with a body
width of 7.4mm - 7.9mm and lead pitch of 1.27mm can be
socketed over their PCB footprints.
Adapter Construction
The adapter is made up of 2 sub-assemblies. They assemble via
connectors making the adapter modular. This way the sub-
assemblies can be replaced when they wear out.
When disassembling the adapter take care not to bend the pins.
When reassembling the adapter note the pin 1 indicators to align
the parts correctly.
Device Dimensions
This socket accepts devices with the following dimensions:
The following chart lists the adapters described by this datasheet
and their subassemblies.
Adapter
Socket
Board
PA-SOD-2808-28
PA-SOD-2808-24
PA-SOD-2808-20
PA-SOD-2808-18
PA-SOD-2808-16
PA-SOD-2808-14
PA-SOD-2808-08
28SD-08
2808SOD
2808SOD
2808SOD
2808SOD
2808SOD
2808SOD
2808SOD
24(28H)SD-08
20(28H)SD-08
18(28H)SD-08
16(28H)SD-08
14(28H)SD-08
08(28H)SD-08
Body mm (inches)
Knee mm (inches)
min.
7.4
typ.
7.8
max.
7.9
min.
n/a
typ.
9.3
max.
9.4
Test Sockets
(0.291)
(0.307)
(0.311)
(0.366)
(0.370)
LSC #
28SD-08
Style
Lidded ZIF
Mfgr/Pn
Enplas FP-28-1.27.08
Tip mm (inches)
Body Length
n/a
Lead Pitch
1.27
(0.050)
xx(28H)SD-08 Lidded ZIF
Enplas FP-xx(28H)-1.27.08
min.
typ.
max.
n/a
10.0
11.6
Notes
(0.394)
(0.457)
1. The xx(28)SD-08 sockets are depopulated 28SD-08 sockets.
A “dam” is added to prevent incorrect alignment of the device.
Adapter Dimensions
2. The 28 pin test socket can be used for the reduced pin counts.
The test socket has divider fingers that keep the device leads on
their contacts. With modest care a reduced pin count device can
be correctly aligned in the test socket.
3. For all versions of the adapter, the board provides 28
positions to receive the SO-Plug. When using plugs with less
than 28 pins orient the plug and the device, away from the pin 1
end of the board.
Wiring
Wiring is 1 to 1. Pin 1 of the SO device is wired to pin 1 of the
plug. Pin 2 to pin 2 and so on around the adapter.
SO Plugs
SO Plugs are required to connect this adapter to the prototype.
They are available separately. The two most common plugs are
shown in the following chart. Other SO-Plugs will also mate with
this adapter, contact us if you want assistance matching plugs to
this adapter.
Plug Kit
A
B
PA-SOF-D420-xx
PA-SOF-D470-xx
0.260"
0.240"
0.420"
0.470"
Logical Systems Corporation
PA-SOD-2808-xx Data Sheet
Doc: SOD2808.DOC
Rev 09/28/01
PO Box 6184, Syracuse, NY 13217-6184 USA
Tel (315) 478-0722, FAX (315) 479-6753
www.logicalsys.com, Email: info@logicalsys.com
S Y S T E M S
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