HRS FunctionMAX FX23 Series Instruction Manual

© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
0.5mm pitch, Power/Signal Hybrid
Floating Board to Board Connectors for High Speed Transmission
Design Guide Line
FX23×FX23L Series
November, 2018
https://www.hirose.com/product/en/products/FX23/
https://www.hirose.com/product/en/products/FX23L/
ETAD-F0887-00
Dec.1.2020Copyright2020HIROSEELECTRICCO.,LTD.AllRightsReserved.

© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 2 of 40
- Table of Contents -
1. Preface ........................................................ 3
1-1 Purpose
1-2 Scope
2. Product Information ........................................................ 4-10
2-1 Basic Specifications
2-2 Product Number Structure
2-3 Mating Diagram (Outline)
2-4 Mating Length
2-5 Connection Variations (Vertical Connection)
2-6 Connection Variations (Horizontal Connection)
2-7 Floating Range
2-8 Use of Insulation Coating Agent
3. Connector Mounting ........................................................ 11-34
3-1 Pick and Place Area
3-2 Recommended Temperature Profile
3-3 Recommended Land Pattern
3-4 Recommended Metal Mask Layout
3-5 Power Contact/Metal Fitting Through Hole Reflow
3-6 Power Contact/Metal Fitting Mounting Status Check Criteria
3-7 Front and Back Mounting of One-Leg Type Metal Fittings
3-8 Regulation for Multiple-Connector Mounting
4. Mating Operation ........................................................ 35-37
4-1 Connector Direction in Mating
(Reverse Insertion Prevention Mechanism)
4-2 Allowable Misalignment in Mating
4-3 Insertion/Withdrawal Method for Multiple-Connector Mounting
5. Board Stabilization ........................................................ 38-39
5-1 Methods to Secure Board
5-2 Board Stabilization Dimensions
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© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 3 of 40
1. Preface
1-1 Purpose
The FX23xFX23L Series Instruction Manual is intended to provide information on basic features of
the FX23 and FX23L Series and the method of use, as well as to provide information on the
method of designing products efficiently and improving the assembling process when the
FX23xFX23L Series are used.
Hirose expects this Instruction Manual will significantly contribute to your product development,
quality, and cost reduction of the entire system.
Because this Instruction Manual intends only to provide general information, it does not restrict
your design and does not guarantee results in all circumstances.
If there is anything that does not conform to the description in this Instruction Manual, consult
Hirose for alternative solutions.
1-2 Scope
Described is basic connector design information, recommended board dimensions, and
requirements.
This Instruction Manual will be revised on a continuing basis as technical specifications and
manufacturing capability changes.
Dec.1.2020Copyright2020HIROSEELECTRICCO.,LTD.AllRightsReserved.

© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 4 of 40
2. Product Information
2-1 Basic Specifications
○Product pitch : Mating section 0.5mm (double column), SMT 0.5mm (both sides exposed)
○Connection type : [FX23 Series] Horizontal connection (stacking height: 15 to 30mm),
vertical connection
[FX23L Series] Horizontal connection (stacking height: 8 to 12mm)
○Floating range : ±0.6mm in X direction, ±0.6mm in Y direction
○Design mating length : 1.5mm
○Current capacity : Signal contact 0.5A/pin, power contact 3 A/pin x 4
○Number of pins : 20/40/60/80/100/120
2-2 Product Number Structure
○Straight header (FX23, FX23L)
FX23 - 120P - 0.5 SV 15
○Straight receptacle (FX23, FX23L)
FX23 - 120S - 0.5 SV 10
○Right angle receptacle (FX23 only)
FX23 - 120S - 0.5 SH
(1) Series name
: FX23
: FX23L
(2) Number of pins
: 20/40/60/80/100/120
(3) Connector type
P
: Header
S
: Receptacle
(4) Contact pitch
: 0.5mm
(5) Product shape
SV: Straight
SH
: Right angle
(6) Product height
Mating height [mm] = Numerical value on the header side +
numerical value on the receptacle side
(Ex. FX23
-120P-0.5SV15×FX23-120S-0.5SV10 -- h=25mm
(1) (2) (3) (4) (5) (6)
(1) (2) (3) (4) (5) (6)
(1) (2) (3) (4) (5)
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© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 5 of 40
2-3 Mating Diagram (Outline) FX23 Series
■Header
■Straight receptacle
■Right angle receptacle
Number of pins 20pos. 40pos. 60pos. 80pos. 100pos. 120pos.
A dimension 18.7 23.7 28.7 33.7 38.7 43.7
FX23-**S-0.5SV
FX23-**P-0.5SV20
8.9 8.9
A
A
12.85
17.85
Number of pins 20pos. 40pos. 60pos. 80pos. 100pos. 120pos.
B dimension 17.2 22.2 27.2 32.2 37.2 42.2
FX23-**P-0.5SV15
FX23-**S-0.5SV10
FX23-**S-0.5SH
Number of pins
20pos. 40pos. 60pos. 80pos. 100pos. 120pos.
C dimension 15.5 20.5 25.5 30.5 35.5 40.5
7.6
B
6.8
7.6
B
16.8
8
C
7.3
8.5
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© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 6 of 40
2-3 Mating Diagram (Outline) FX23L Series
■Header
■Receptacle
Number of pins
20pos. 40pos. 60pos. 80pos. 100pos. 120pos.
D dimension 18.7 23.7 28.7 33.7 38.7 43.7
6.6
D
6.85
FX23L-**P-0.5SV8
FX23L-**S-0.5SV
Number of pins
20pos. 40pos. 60pos. 80pos. 100pos. 120pos.
E dimension 21 26 31 36 41 46
E
5.8
10.5
FX23L-**P-0.5SV10
FX23L-**P-0.5SV12
6.6
D
8.85
6.6
D
10.85
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© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 7 of 40
2-4 Mating Length
The design mating length of this connector is shown in the following figure.
The dimension between boards should comply with the dimension corresponding to the stabilization
methods specified in "5-2. Board stabilization Dimensions."
Mating length
1.5mm
FX23 Series FX23L Series
1.5mm
2-5 Connection Variations (Vertical Connection)
FX23-**P-0.5SV15 FX23-**P-0.5SV20
FX23-**S-0.5SH
Right angle receptacle
Straight header
20.9
** ---> Number of contacts: 20/40/60/80/100/120
FX23L-**P-0.5SV12FX23L-**P-0.5SV10
15.9
13.9
11.9
Note. Since the metal fittings interfere with each other, FX23L-**P-0.5SV8 and FX23-**S-0.5SH cannot engage.
Rigid Rigid Floating Floating
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© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 8 of 40
2-6 Connection Variations (Horizontal Connection)
FX23L Series
Standard type
FX23 Series
Standard type
12mm10mm8mm
15mm
25mm 30mm
20mm
14mm 19mm
9mm 11mm 13mm
19mm 21mm 23mm
FX23×FX23L Series
Double floating type
FX23×FX23L Series
Rigid type
FX23-**P-0.5SV15 FX23-**P-0.5SV20 FX23L-**P-0.5SV12FX23L-**P-0.5SV10FX23L-**P-0.5SV8
FX23L-**S-0.5SV
FX23-**S-0.5SV
FX23-**S-0.5SV10
●Height Variations
Floating range:
XY direction ±0.6mm
Floating range:
XY direction ±0.6mm
Floating range:
XY direction ±1.2mm
No floating ability
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© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 9 of 40
2-7 Floating Range
FX23 and FX23L Series have a floating capability on the header and receptacle side, respectively.
The floating range is ±0.6mm in both X and Y directions.
Note that the repeat count of the floating operation is 100 times at maximum according to the
specified insertion/withdrawal count.
X axis directionY axis direction
0.6mm
Fixed part
Floating part
Y axis direction X axis direction
Y axis direction X axis direction
0.6mm
◆FX23 Series Floating part at header side moves.
0.6mm
Floating part
Fixed part Receptacle
Fixed part Floating part
0.6mm
X axis directionY axis direction
Fixed part
Floating part
◆FX23L Series Floating part at the receptacle side moves.
Floating part
Fixed part
Fixed part Floating part
Header
The connector can be rotated in parallel with the board surface.
The rotation angle varies by the number of pins. See the table below.
Number of pins 20pos. 40pos. 60pos. 80pos. 100pos
.
120pos
.
Rotation angle (MAX): FX23 Series 5.3°4.0°3.2°2.6°2.3°2.0°
Rotation angle (MAX): FX23L Series 6.0°4.3°3.4°2.8°2.6°2.0°
* These values are obtained with the rotation center placed at the center of the connector. When the
rotation axis is at a position other than center, the rotation range becomes narrower than the above value.
Dec.1.2020Copyright2020HIROSEELECTRICCO.,LTD.AllRightsReserved.

© 2018, HIROSE ELECTRIC CO., LTD. All rights reserved.
November, 2018
FX23×FX23L Design Guide Line Revision 3.1
Page- 10 of 40
2-8 Use of Insulation Coating Agent
FX23 Series --- Can be used
FX23L Series --- Cannot be used
FX23 Series have spaces around the contacts to prevent insulation coating agents from creeping up
due to capillarity.
FX23L Series, which has a lower height, does not have spaces like FX23 Series.
Thus, FX23L Series is not designed for preventing insulation coating agents from creeping up.
When an insulation coating agent creeps up, it may have adverse effects, such as contact failure by
disturbing contact displacement and loss of floating movement.
For this reason, avoid applying an insulation coating agent for FX23L Series.
Spaces around contacts prevent coating agents from
creeping up due to capillarity.
◆FX23 Series
◆FX23L Series No space around contacts due to lower height.
Since the spaces between the boards and contacts are limited, FX23L Series
cannot prevent coating agents from creeping up.
Dec.1.2020Copyright2020HIROSEELECTRICCO.,LTD.AllRightsReserved.