Tag: I-PEX

Enterprise -level low -speed cable component

While the data transmission rate is increased, the cable components required by the server are also increasing. Because the printed circuit board has not kept the transmission rate, high -speed cables play a main role. However, the importance of low -speed cable components has not changed. Low -speed components are still often used for power distribution, low -speed signal transmission and auxiliary lines. Low -speed components are rarely defined by industry standards, while high -speed signals are defined by the Standard Committee very frequently. As the density of the server rises, power consumption and heat are also increasing. Therefore, regardless of whether there are standards, all cable components need to be minimized, so that the server system is easy to install and prevent the flow of air flow between the components of the server so as to facilitate heat dissipation.

The advantage of low -speed cables and close -range high -speed cables is that small wire diameters can be used (except, except for power supply). High -density connectors and flexible circuit boards need to use small diameter cables. The smaller the use of the conductor, the more helpful the interconnection density, saving the space required for wiring and cable component connection.

Cable components with small bending radius and easy to wiring

It is essential for high -speed and low -speed internal cables. If the cable can be wiring along the edges or between memory and case, space can be effectively used. Less bending radius can not only reduce the space occupied by the cable, but also effectively use the edge corner of the case.

If the flexibility is insufficient, the component may require a large bending radius to occupy more space. Sometimes the cables need to be wiring along two directions. For example, up and left, the flat cables need to be curved several times, so it is difficult to achieve the steering of the two directions, and the wire beam can easily turn through through the twisting. True connectors are compatible with flexible flexible circuit boards, discrete wires and high -speed impedance control cables. USB or Ethernet is sometimes used as the access interface. They can be wired with low -speed cables.

Cabline® series connector can use various wires

On the front panel of the server with a low -speed cable component, there will be indicator lights, small display screens, and input/output interfaces such as USB and other input/output interfaces. The cable components used in the low -resolution front panel display contain multiple electronic wires, and there may be several pairs of high -speed cables. The LCD display of the small front panel can be set at any position in front of the case, and sometimes it is also set in the hanging ear. These positions are close to the pillar of the cabinet. Because the server is installed here, there will be many sheet metals here. The space that the cable can occupy is limited, and the narrow distance cable component helps to use limited space.

Low -back, miniaturized application

Extreme coaxial components and electronic wire components can be used for extremely low height design. Whether it is a high -speed or low speed, these components have low cup options to save precious space inside the server. It is often used to focus on saving space and lightweight drones, VR devices, and laptops. I-PEX extremely fine coaxial connector and electronic wire connector

I-PEX offers a variety of narrow-spacing output/input connectors. The I-PEX Cabline® series provides a variety of central lines and chimeric directions. The end -connecting electronic wires, shielding wires, impedance control extremely fine coaxials and dual -core coaxials, and even flexible circuit boards (FPCs). If high -speed is required, high -speed and impedance control cables should be selected. Low -speed cable components can use low -cost cables. Although the Cabline connector can be used for high -speed signal transmission, the link performance of the terminal depends on the cable.

Taking the Cabline®-VS polarity coaxial connector as an example, the spacing is 0.5mm, and 10 to 50 PIN feet can be selected. Due to the right -angle mother seat and straight public seat installed with circuit boards, the interface is parallel to the circuit board after installation. The connected options include electronic wires, shielding cables, extremely fine coales, and dual -core coaxials. More compatible with the FPC version. All wiring options of Cabline®-VSF shared a circuit board to install the mother seat. The FPC is an independent option, and the component only uses FPC. Different wires can be mixed with the same component. Electronic cable components contain some high -speed cables very common. If you need to use high -speed cables, the extremely fine coaxial axis can be used for transmission of differential signals. It also provides a shielding option to provide a 360 -degree shield for the connector to help suppress EMI.

Cabline®-CA IIF is suitable for FPC components, and can be compatible with the standard Cabline® CA-II mother seat

I-PEX has the production experience of the narrow-spacing cable components and connectors for decades. According to the system design needs of customers, provide customers with tailor -made solutions

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

Transmission comparison between ultra-fine coaxial bundle jumper connection and low transmission loss board connection

Are you looking for a solution to extend the required transmission distance while suppressing losses? Our ultra-fine coaxial bundle jumper connection can transmit approximately two to three times the distance compared to using a low transmission loss board at any speed.

1. Refer to the specifications for internal loss values; Budget for losses

With the increasing use of high-capacity storage devices, it is easier to appreciate high-resolution images and videos on consumer products such as personal computers, tablets, and smartphones. Therefore, the amount of information that needs to be processed on these devices has sharply increased, and the signal speed in the devices is becoming faster and faster.

However, the higher the speed of signal transmission, the greater the transmission losses such as conductor loss and dielectric loss that occur in the transmission path, making signal transmission more difficult. Therefore, according to transmission standards, there is a reference specification for internal loss values called loss budgeting.

For example, in the USB4 (* 1) specification Ver In the case of 1.0 [Thunderbolt 4 (* 2)], this is a 20Gbps (10GHz)/Lane high-speed transmission, and the loss budget for device A, cable, and device B is specified as -7.5 dB, as shown in the following figure.

2. Typical internal connection mode of USB4 (20Gbps (10GHz)/Lane)

If high-speed signals can be transmitted over long distances on PCB boards within a loss budget range of -7.5 dB, designers will have greater flexibility in designing their PCB boards. (1) When high-speed signals such as USB4 reach a certain transmission distance, low transmission loss boards can be used for transmission. However, the longer the transmission distance, the greater the loss in the transmission path, making it more difficult to transmit signals within the loss budget. Therefore, if the transmission path is long, measures need to be taken to suppress the losses generated in the transmission path.

Although the transmission distance can be extended by using ultra-low transmission loss boards, this may lead to a significant increase in the cost of mass production of products. Other measures to extend the required transmission distance while suppressing losses may be: (2) using jumper transmission paths suitable for high-speed transmission, or (3) using Retimer ICs to correct the attenuated signal waveform and reproduce the original waveform.

In this section, we conducted transmission loss comparison tests on (1) low transmission loss boards and (2) extremely fine coaxial line jumpers

3. Transmission comparison test results of the connection between ultra-fine coaxial bundle jumper and low transmission loss board

3.1 Comparison of transmission losses

CABLINE ®- VS II Very Fine Coaxial Bundle Jumper<Low Transmission Loss Board

3.2 Transmission Distance (USB4 (Thunderbolt 4) Specification (20Gbps (10GHz)/Lane)

CABLINE ®- VS II ultra-fine coaxial bundled jumper>low transmission loss board

3.2.1 Transmission using extremely fine coaxial bundle jumpers: 2 inches, 4 inches, 8 inches, 10 inches

3.2.2 Low loss board transmission: 2 inches, 4 inches

Based on the above measured results, calculate the maximum transmission length for each transmission path with a loss of -7.5 dB (for reference)

At any transmission speed, CABLINE ®- The transmission distance of the VS II ultra-fine coaxial bundle jumper is approximately 2 to 3 times that of using a low transmission loss board.

Summarize

4. Test conditions

4.1 Dielectric constant: 3.7

(Generally, the dielectric constant of FR-4 board is about 4.7~5.0)

4.2 Specification of very fine coaxial bundle:

Transmission method: differential transmission

Test equipment: Network analyzer Keysight technologies E5071C

Measurement frequency: 20MHz~20GHz

Tested position: 1,2,3,4 (G, S, S, G)

Sample image

Produce low transmission loss boards and CABLINE of different lengths (2, 4, 8, and 10 inches) ®- VS II extremely fine coaxial bundle jumper and compare insertion losses.

Sample photos

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.

Why choose the I-PEX board to board connector?

1.High speed transmission above 20+Gbps/lane

I-PEX will adopt “Signal integrity” × Ultra miniaturization “technology is applied to high-speed transmission of board to board connectors (FPCs). The provided connectors have the advantages of ordinary board to board (FPC) connectors and are more suitable for internal connections of mobile devices with high-speed data transmission requirements.

Corresponding connector: NOVASTACK ® 35-HDN, NOVASTACK ® 35-HDP, NOVASTACK ® 35-HDH

2. 5G millimeter wave and Sub-6GHz

The board to board connectors developed by I-PEX for 5G transmission have contributed to the application of 5G devices in various countries. The board to board connectors with built-in shielding cover solve the problem of EMI interference, improve EMC resistance, and have the best high-frequency transmission performance (VSWR/IL) and high current requirements of the same specification required for efficient operation of 5G devices.

Corresponding connector: NOVASTACK ® 35-HDN, NOVASTACK ® 35-HDP, NOVASTACK ® 35-HDH

3.EMI fully shielded

The metal shells of the male and female connectors of I-PEX completely surround the signal terminals and solder joints inside the connector. After the combination of the male and female seats, the metal casing provides more grounding contacts, giving the connector excellent grounding performance. Multiple grounding points on the board, all signal terminals of the male and female seats are surrounded by the casing, providing a good 360 degree EMI shielding performance. The interference of other high-frequency signals is suppressed, so designers can configure the connector near the antenna.

Corresponding connector: NOVASTACK ® 35-HDN, NOVASTACK ® 35-HDP, NOVASTACK ® 35-HDH

4.Designed with independent power terminals

The connectors of I-PEX not only meet the current requirements of mobile devices, but also achieve ultra miniaturization of the product.

4.1 Can use reinforcement terminals as connectors for power terminals

Due to the fact that the reinforcing terminal of the board to board connector is made of metal, it is not only used to connect the power terminal, but also enhances the firmness of the connector’s welding on the PCB. The connector has a larger insertion guide, making it easier to insert and fit. In addition, due to the specialized power terminals that withstand high currents, the signal terminals are not used for power supply, thus reducing the number of pins and reducing the connector volume, effectively saving space.

Corresponding connector: NOVASTACK ® 35-P, NOVASTACK ® 35-PH

4.2 Design a dedicated connector with power terminals

The terminal of the transmission power supply adopts Corson copper alloy (copper nickel silicon copper alloy) with better conductivity and thermal conductivity, which is 3.5 times wider than the signal terminal. (Signal terminal width: 0.12mm, power terminal width: 0.42mm)

Corresponding connector: NOVASTACK ® 35-HDP

4.3 Battery connector

Designed with 4 power pins (6.0A) and 4 signal pins, and designed with metal reinforcement and metal guide structure, making the product more sturdy and easier to fit.

Corresponding connector: NOVASTACK ®- B

Why Choose I-PEX RF Connectors?

1.Industry standard connectors

existing standards

I-PEX MHF series connectors are standard components for various wireless devices, widely used in smartphones, tablets, laptops, M.2 and M2M wireless modules, car infotainment and navigation systems, etc. With the rapid development of IoT, the MHF series will play an increasingly important role in global wireless connections. I-PEX continues to provide solid, reliable and cost-effective wireless connection solutions. At present, the number of wireless products equipped with MHF series connectors has exceeded 2 billion sets.

5G and future standards

MHF 7 and MHF 7S are a new generation of MHF series products, which are applied to the millimeter wave and sub-6 frequency band solutions of 5G communication . Larger electronic devices, such as laptops, small base stations, and CPEs, require longer antenna wire harnesses. The launch of MHF 7 and MHF 7S products has solved many challenges of 5G communication and led the 5G revolution.

Wi-Fi 6/6E

Among I-PEX products, we have a large number of MHF ® series products that have been confirmed to be compatible with Wi-Fi 6/Wi-Fi 6E through performance evaluation in the 6GHz frequency band (5935 MHz to 7125 MHz) of Wi-Fi 6/Wi-Fi 6E -Fi 6E work.

2.Rich options

2.1Various coaxial cable sizes

  1. PEX provides MHF products suitable for different coaxial cable diameters to meet the needs of various insertion loss and VSWR, and can also flexibly respond to different wireless connection applications inside the device. The coaxial outer diameters of MHF are 0.48mm ( MHF 5 ), 0.81mm ( MHF I , MHF III , MHF 4L , MHF 5 , MHF 5L ), and 2.0mm (MHF I ). Please refer to the table below for the relationship between general insertion loss and cable length of various coaxial cables.

2.2Diversity in mating height and package size

From small electronic devices such as smartphones, tablet computers, and notebook computers to electronic devices that require high impact resistance and vibration resistance, I-PEX’s MHF series products can meet different design requirements. There are also many options for the package of the MHF series female base.

2.3Mechanical lock

I-PEX’s MHF I LK and MHF 4L LK are the first connectors in the industry to improve the mating retention force by installing a mechanical lock on the existing MHF I and MHF 4L Plug. It is most suitable for devices that need to ensure a stable chimera state, such as drones, vehicle management, asset tracking, safety monitoring, and monitoring of practitioners. There are two types of MHF equipped with mechanical locking function, namely MHF I LK and MHF 4L LK. Design engineers can choose flexibly according to the size and performance of the equipment.

2.4Ground shrapnel, ground claw

I-PEX provides PCB grounding spring and grounding claw as MP-A of Earthing system. The grounding spring is assembled on the RF coaxial line, and when used solely for wire management functions, the grounding claw can be omitted. When used as a grounding function, the grounding claw can suppress EMI and help meet the EMC testing requirements of the product.

MHF 7S harness with cable clamp & clip provides optimal EMC solution.

Ideal for 5G mmWave applications.

3.I-Fit ® technology

3.1What is i-Fit technology

The patented technology i-Fit developed by I-PEX belongs to the solderless connection technology and is the core technology of the MHF series connectors. It has a simple structure and scalability, and can handle RF coaxial lines with different wire diameters. I-Fit technology ensures reliable MHF wiring harness connection performance, good product consistency, and helps improve the overall efficiency of the system.

3.2I-Fit with higher accuracy than welding

Comparing the voltage standing wave ratio of products produced using I-PEX patented i-Fit solderless connection technology with products connected through soldering, it was found that there are significant individual differences in the wiring harnesses of soldered products, resulting in unstable product performance. The differences in products produced by i-Fit without welding connection technology are very small, and the consistency of the products is very high, with excellent electrical and high-frequency characteristics.

3.3Industrial applications

The i-Fit patented technology developed by I-PEX company helps antenna manufacturers and wire harness manufacturers complete MHF connector and RF coaxial line assembly in local factories. I-PEX has provided over 1000 specialized riveting equipment to over 100 cooperating companies, and assisted and trained them in producing high-quality MHF series wire harnesses and antennas using MHF riveting equipment and genuine components.

3.4 I-PEX’s fully automatic RF wiring harness solution

I-PEX also caters to customer needs by processing customized MHF wire harness products of various specifications, such as 2-head riveted MHF terminals, one end riveted terminals+one end flush cut, one end riveted terminals+one end wire stripping (pre adhesive tin) as required. Even, the orientation of the connector (90 degree units) can be customized as needed, with some outer covering removed or the middle part peeled off, and grounding terminals riveted to facilitate the installation of MP-A grounding claws and other special customized services. I-PEX independently developed high-speed automated production equipment for MHF wire harnesses, which is a leading enterprise in the field of RF wire harness processing full automation. Fully automated assembly production equipment (FAM) can perform RF coaxial line cutting, wire stripping, connector riveting, orientation inspection, and mechanical and electrical characteristics testing. It produces tens of thousands of wire harnesses every day, while the process defect rate (DPMO) remains below 1.

What is a coaxial cable?

1.Basic structure of the cable

A cable with a simple structure and a conductor wrapped with a layer of coating is called an electronic wire. The cable with multi-layer structure, the center conductor is wrapped with an insulating layer, the outer conductor and the outer layer are called ultra-fine coaxial cables. The outer conductor of the coaxial cable plays the role of electromagnetic shielding, and the electrical signal transmitted through the central conductor is not easily affected by external electromagnetic waves (electromagnetic noise).

2.What is Micro Coaxial Cable?

The size of the center conductor used in the coaxial cable adopts the American Wire Gauge (AWG) standard, and the larger the AWG number, the smaller the size of the center conductor.
In general, coaxial cables with an outer diameter (OD) of 1 mm or less are referred to as “micro-coaxial” cables. Ultra-thin coaxial cables are widely used for signal transmission between internal module boards of personal computers, tablet computers, smart phones and other equipment, as well as signal transmission between precision instruments such as medical, industrial, automotive and aviation.