What are floating type connectors?
It has a structure in which an insulator housing, colored green in the figure on the right, of a mated pair of connectors is like floating. It is impossible to mate general rigid connectors if they are mounted out of precise alignment, but is possible with the floating type connectors. Even if connectors are mounted out of alignment, it is possible for a floating type connector (colored green) to move in the floating space to mate to the counterpart connector properly. Thus the connectors absorb the positional deviation on boards and positional deviation generated in installing boards on which the connectors are mounted to the customers’ units.
It has a structure in which an insulator housing, colored green in the figure on the right, of a mated pair of connectors is like floating. It is impossible to mate general rigid connectors if they are mounted out of precise alignment, but is possible with the floating type connectors. Even if connectors are mounted out of alignment, it is possible for a floating type connector (colored green) to move in the floating space to mate to the counterpart connector properly. Thus the connectors absorb the positional deviation on boards and positional deviation generated in installing boards on which the connectors are mounted to the customers’ units.
Advantages in using them
By using floating type connectors:
1) It is possible to use plural pairs of connectors on a single printed circuit board,
2) The degree of freedom in component layout and in circuit design increases,
3) The stress applied to the solder joints decreases to suppress solder cracks.
Kyocera’s floating type connectors achieve movability of F/P*1=200％ at maximum and it is possible to solve customers’ problems at design by their high contact reliability.
*1F/P･･･F= Floating/P=Pitch
Structure of floating type connectors
Side view (movable in the direction of the Y axis) Top view (movable in the direction of X and Y axes)
Depicting the cross section of the connector (area shown by the blue frame)
The spring part of contacts expands or contracts, and the movable insulator housing colored green follows it.
Line-Up：Kyocera’s floating connectors
| Series （Details） |
Pitch | Floating | Stacking Height | No. of Pos. | Connection Style |
|---|---|---|---|---|---|
| 8152 →Details |
0.4mm | ±0.4mm | 3.5mm | 20 to 40 | ST-ST |
| 5655 →Details |
0.5mm | ±0.5mm | 4.0, 5.0, 6.0, 7.0mm | 10 to 100 | ST-ST |
| 5652 →Details |
0.5mm | ±0.85mm | 14.0 to 30.0mm | 10 to 180 | ST-ST |
| 5656 →Details |
0.5mm | ±1.0mm | 17.0mm | 40 to 60 | ST-ST ST-RA |
| 5689 →Details |
0.635mm | ±0.5mm | 8.0mm | 40 | ST-ST |
| 5690 →Details |
0.635mm | ±0.5mm | 11.75/12.75mm | 30 to 80 | ST-ST ST-RA |
Board to Board Connectors: 5652 Series
The “5652 Series” complies with variety of high-speed standards, including PCIe Gen.1 through Gen.4, MIPI D/C-PHY, SATA 3.0, USB 3.1 Gen.1, and also complies with USB 3.1 Gen.2 for the first time in the industry*1. The stacking height is available in a wide range of heights from 14 mm to 30 mm, increasing the degree of freedom in design. It can cope with extreme high temperature environment up to 125 deg. C required for in-vehicle equipment.
*1. Among 0.5mm-pitch floating board-to-board connectors (according to research by Kyocera as of December 2020)
Typical Applications
Automotive Equipment, Servers, Industrial Equipment, Medical Equipment etc.
Part No. List by Number of Positions:
Specifications
| Stacking Height | 14 to 30mm |
|---|---|
| No. of Positions | 10 to 180 |
| Connection Style | Vertical-Vertical |
| With or Without Metal Tabs |
With |
| PCB Mounting Method |
SMT |
| Pitch | 0.5mm |
| Rated Current | DC 0.6A/Contact DC 3A/Power pin |
| Rated Voltage | DC 50V/Contact |
| Withstanding Voltage | AC 500Vrms、1min. |
Features
- The floating board-to-board connector complies with SATA 3.0, PCIe Gen.1 2.5 GT/s through Gen.4 16 GT/s high-speed transmission standard (16 GT/s), and is the industry’s first*1 to comply with USB 3.1 Gen. 2. The target characteristic impedance ranges from 85Ω to 100Ω, making it possible to meet various high-speed transmission standards.
*1. Among 0.5mm-pitch floating board-to-board connectors (according to research by Kyocera as of December 2020)
- The 5652 Series is a floating connector with a 0.5mm pitch that can move ±0.85mm in the X and Y directions to absorb positional and mounting misalignment within the housing. The connector reduces the stress generated during use for long-term reliability and maximizes both electrical and mechanical characteristics.
- A dedicated power supply terminal can be assigned separately from the signal terminal according to the desired rated current. (Power terminal options)
- Generally, the effective fitting length of a connector contact changes depending on the variation of distance between boards due to accumulated tolerances, which can affect data transmission characteristics. However, Kyocera’s 5652 Series can cope with a maximum ±0.75mm height tolerance between boards while still providing high-speed data transmission.
- RoHS compliant and Halogen-free
- Contact Material: Copper alloy
- Insulator Material: Heat-resistant plastic
- Operating Temperature Range: -40 to +125°C
Plating Specifications
| Plating Code | Contact Area | Tail Area | Metal tabs | RoHS Compliance |
|---|---|---|---|---|
| 829+ | Au | Au | Sn-Cu | Yes |