Data Sheet 1 2003-08-07
Press-fit Cage
for Small Form-factor Pluggable (SFP) Transceiver
V23838-S5-N1
V23838-S5-N1-BB
Fiber Optics
Part Number Description
V23838-S5-N1 For single-sided mounting
V23838-S5-N1-BB For double-sided "belly to belly" mounting (see Figure 3)
File: 1142
V23838-S5-N1
File: 1143
V23838-S5-N1-BB
Features
• 3D foot design for improved press-fit retention and
contact to host board holes
• One-piece, stainless steel construction
• Low emission design via fold-back spring fingers –
no openings for radiation to pass through
• Enhanced transceiver kick-out springs
• Simple and fast installation/removal
• Host board holes not damaged when cage is
removed
• Heat transfer windows on all SFP cage surfaces
• Supports MSA compliant host board layouts and
transceiver designs
V23838-S5-N1
V23838-S5-N1-BB
Description
Data Sheet 2 2003-08-07
Description
Infineon is offering its cage for Small Form-factor Pluggable (SFP) transceivers with one
of the most rigid mechanical designs available on the market. The cage is designed for
press fit applications in order to reduce high volume manufacturing effort. Externally bent
bezel contact springs and one-piece construction enhance EMI performance.
Application Notes
• Testing of rear connector may take place before SFP Cage is installed onto host board
• SFP cage mounting holes should be plated with HASL, gold, or immersion silver finish
per MSA dimensional recommendations
• For double-sided mounting, host board thickness is .118 in [3.0 mm] minimum per the
MSA. For belly-to-belly applications, three mounting feet are removed to avoid
interference (V23838-S5-N1-BB)
• Supports any single sided, belly to belly, or offset belly to belly configuration with a
minimum pitch of 16.25 mm
• Installation of the SFP cage should be done with a solid metal block across the top
surface of the cage. Block dimensions to be controlled by customer
• Removal of the cage should be done with an internal solid metal block
• The Infineon SFP cage does not cause any damage when carefully removed; the
outside profile of the 3D feet is smooth and will not destroy pre-plated host board
mounting holes
• Trapped fluids from washing process must be dried to prevent corrosion beneath the
SFP cage
• Cage retention depends on finished hole size and plating thickness
V23838-S5-N1
V23838-S5-N1-BB
SFP Cage Host Board Mechanical Layout
Data Sheet 3 2003-08-07
SFP Cage Host Board Mechanical Layout
Figure 1 Single-sided Host Board Layout
Figure 2 Recommended Bezel Design
5.68
A
5
2)
2)
1)
2)
1)
2)
3)
26.8
41.3
42.3
8.58
BSC
11.08
14.25
34.5
PIN 1
2.5 2.5
7.17.2
11.93
9.6
4.8
1.7
8.48
3.68
16.25
2
11
PLACES
2
11
PLACES
10
3
PLACES
CROSS-HATCHED AREA DENOTES
COMPONENT AND TRACE KEEP-OUT
(EXCEPT CHASSIS GROUND)
1) Datum and basic dimensions
established by customer
2) Pads and vias are chassis ground, 11 places
3) Thru holes, plating optional
THIS AREA DENOTES
COMPONENT KEEP-OUT
(TRACES ALLOWED)
1.7
10
3
PLACES
Y
X
⊕ ∅0.1 S X Y
∅0.85±0.05
⊕ ∅0.1 L X A S
∅1.05±0.1
10
HOLES
⊕ ∅0.1 L X A S
∅0.95±0.05
9
HOLES
Dimensions in mm File: 1519
Y
Y
0.4±0.1
BEZEL OPENING
BELOW PC BOARD
SECTION
Y-Y
3.5±0.3
1.7±0.9
1)
10.4±0.1
10 REF
16.25±0.1
[.640]
15.25±0.1
[.600]
1)
MINIMUM PITCH ILLUSTRATED, ENGLISH DIMENSIONS ARE FOR REFERENCE ONLY
NOT RECOMMENDED FOR PCI EXPANSION CARD APPLICATIONS
Dimensions in mm [inches] File: 1520
V23838-S5-N1
V23838-S5-N1-BB
SFP Cage Host Board Mechanical Layout
Data Sheet 4 2003-08-07
Figure 3
V23838-S5-N1
SINGLE SIDED
MOUNTING
HOST PCB
CROSS SECTION
V23838-S5-N1-BB
BELLY TO BELLY
THREE FEET REMOVED
File: 1514
V23838-S5-N1
V23838-S5-N1-BB
SFP Cage Host Board Mechanical Layout
Data Sheet 5 2003-08-07
Single-sided Application
Figure 4
Figure 5
File: 1515
File: 1516
V23838-S5-N1
V23838-S5-N1-BB
SFP Cage Host Board Mechanical Layout
Data Sheet 6 2003-08-07
Belly to Belly Application
Figure 6
Figure 7
File: 1517
File: 1518
V23838-S5-N1
V23838-S5-N1-BB
Package Outlines
Data Sheet 7 2003-08-07
Package Outlines
Figure 8 V23838-S5-N1
2.10
9.55
11.50
16.25
48.70
9
14
A
DETAIL A
Dimensions in mm
File: 1221
V23838-S5-N1
V23838-S5-N1-BB
Package Outlines
Data Sheet 8 2003-08-07
Figure 9 V23838-S5-N1-BB
Dimensions in mm File: 1222
11.50 9.55
2.10
16.25
48.70
14
9
A
DETAIL A
Edition 2003-08-07
Published by Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81541 München, Germany
© Infineon Technologies AG 2003.
All Rights Reserved.
Attention please!
The information herein is given to describe certain components and shall not be considered as warranted
characteristics.
Terms of delivery and rights to technical change reserved.
We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding
circuits, descriptions and charts stated herein.
Infineon Technologies is an approved CECC manufacturer.
Information
For further information on technology, delivery terms and conditions and prices please contact your nearest
Infineon Technologies Office in Germany or our Infineon Technologies Representatives worldwide.
Warnings
Due to technical requirements components may contain dangerous substances. For information on the types in
question please contact your nearest Infineon Technologies Office.
Infineon Technologies Components may only be used in life-support devices or systems with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life-support
devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
For questions on technology, delivery and prices please contact the Infineon
Technologies Offices in Germany or the Infineon Technologies Companies and
Representatives worldwide: see our webpage at http://www.infineon.com.
V23838-S5-N1
V23838-S5-N1-BB
Revision History: 2003-08-07 DS3
Previous Version: 2003-07-08
Page Subjects (major changes since last revision)
1“Preliminary Data” removed
