SCA2 Connector
Systems
SCA2 Vertical Receptacles
Features
• High reliability blade-on-beam
contact design
• Alignment features provide blind
mating
• First-Mate-Last-Break (FMLB)
contacts in accordance with
SFF Standards pattern
• Dual ESD contacts for static
discharge paths
• High temperature plastic suitable for
wave or reflow soldering
Benefits
• High density dual row on
1mm centerlines
• High performance contacts: 60
grams min. normal force 1.0 amps
per contacts
• FMLB contacts for hot-mating
pattern per SFF standard
• Multiple configurations
• Receptacles:
• Vertical through hole
• Press fit two heights for
11.5mm and 17.5mm plugs
• Plugs:
• Straddle mount and
surface mount in-line
• Robust design
• Blade-on-beam contacts
• High temperature plastic
• Low mating force
• Au-plating
• Built-in guidance and polarization
• Compatible with IR and
convection reflow soldering
Description
The SCA2 (Single Connect Attachment) connector system consists of plugs
and receptacles designed to meet the industry’s requirement for standard
drive to backpanel interface in RAID (Redundant Array of Independent Disks)
and Fibre Channel applications. The plug resides in the disk drive, while the
receptacle is on the backpanel. The interface is governed by the Small Form
Factor (SFF) standard.
FCI’s SCA2 connectors feature high reliability dual-row blade-on-beam
contacts on 1mm centerlines and alignment guides for “hot-mating”
respectively.
Receptacles are available in 80 and 40 positions with two body heights, both
vertical solder-to-boards and vertical press fit contacts tails. Edge-cards plugs
are available in 80 and 40 position straddle mount or surface mount-in-line.
Target Markets
• Data
• Storage
Target Applications
• Disk drives
• Enterprise servers
• Disk array
Available in Asia/Pacific only
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SCA2 Connector
Systems
Technical Features
Materials
• Housing: High temperature
Nylon (UL 94 V-0)
• Color: Black
• Applicable solder process: Infrared,
vapor phase, or convection reflow
• Contact: Phosphor Bronze
• Contact plating: Au over Ni
SnPb tails
Operating Performance
• Temperature range:
-55°C to +105°C
Specifications
• SFF-8451
• MIL-STD-202
• MIL-STD-1344
Electrical Performance
• Insulation resistance: 1000M
• Dielectric withstand: 500 Volts
• Current rating: 1.0 Amp/contact
• Contact resistance: 15 m
Packaging
• Trays
Mechanical Performance
• Durability (mating cycles): >500
Application of SCA-2 Plug and Receptacle in Servers and HDD
SCA-2 Plug
SCA-2 Receptacle
Servers
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SCA2 Connector
Systems
Ordering Information SCA-2 Vertical Receptacles 80 Position
Part Number
72442-101S
72442-102S
72442-103S
72442-104S
72436-101S
72436-102S
72436-103S
72436-104S
72436-105S
72436-106S
PCB Mounting
Press Fit
(Extended Height)
Solder Tail
(Extended Height)
Tail Length Dimension A
mm
in.
3.79
0.149
3.79
0.149
4.60
0.181
4.60
0.181
2.79
0.110
2.79
0.110
3.18
0.125
3.18
0.125
4.06
0.160
4.06
0.160
Height Dimension B
mm
in.
17.50
0.689
17.50
0.689
17.50
0.689
17.50
0.689
17.50
0.689
17.50
0.689
17.50
0.689
17.50
0.689
17.50
0.689
17.50
0.689
Peg Yes/No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
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950552-004 9/01
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