0.635mm board to board connector Female 527600678, sometimes simply referred to as a female board-to-board connector or a receptacle, is an electrical connector designed to provide the female or receptacle side of a connection between two printed circuit boards

 Introdction：

0.635mm board to board connector Female 527600678 stands out with its exquisite exterior design. Its pin spacing is only 0.635mm, which greatly saves circuit board space while ensuring stable connection. The combined height of 3.0mm and width of 6.4mm have taken thinness to the extreme, providing strong support for the miniaturization of electronic devices. In products such as smartphones and wearable devices where space is scarce, this compact connector can easily adapt without taking up too much valuable space, making the internal layout of the device more compact and reasonable.

Its performance characteristics：

Current and voltage carrying capacity: The rated current reaches 0.5A (AC/DC) and the rated voltage is 50V (AC/DC), which can meet the low-power power supply and signal transmission needs of small and medium-sized electronic devices, and adapt to the conventional power specifications of consumer electronics, smart homes and other scenarios.

Low contact resistance: The maximum contact resistance is only 30 milliohms, effectively reducing energy loss during signal transmission, lowering the risk of heat generation, and ensuring the stability and efficiency of current and signal transmission.

Excellent insulation performance: The minimum insulation resistance is 100 megaohms (under 100V DC conditions), combined with 100V AC/1-minute voltage resistance, which can effectively isolate interference between circuits, prevent short circuits or leakage phenomena, and improve equipment operation safety.

Wide working temperature range:0.635mm board to board connector Female 527600678 can work stably in environments ranging from -20 ℃ to+105 ℃, and can withstand material shrinkage tests in low-temperature environments as well as performance degradation in high-temperature scenarios. It is suitable for various indoor and outdoor use environments.

High temperature resistant shell: The shell is made of UL94V-0 grade high-temperature plastic (LCP), which has excellent heat resistance and flame retardancy, and can withstand high temperature environments during welding and equipment operation, extending its service life; The white appearance facilitates visual recognition and installation verification.

High conductivity contacts: 0.635mm board to board connector Female 527600678 are made of phosphor bronze material, combined with gold plating technology, which not only ensures good conductivity and elasticity, but also improves corrosion resistance and wear resistance, reducing the risk of poor contact during long-term use and ensuring connection stability.

0.635mm board to board connector Female 527600678 core application areas mainly focus on electronic device scenarios with clear requirements for low power consumption, high reliability, environmental adaptability, and miniaturization, including:

1.In the field of consumer electronics                                                                                                                                                                                                                                          Internal signal interfaces for smartphones and tablets (connecting motherboards to screens, cameras, and other modules), power and data transmission interfaces for small wearable devices (smartwatches, bracelets), and internal circuit connections for portable small appliances (mini fans, power banks).
Adaptation reason: The low rated current (0.5A) and voltage (50V) meet the low-power requirements of consumer electronics, and the small size design (combined with the miniaturization characteristics of the Slimstack series) adapts to the compact internal space of the device. The wide temperature range (-20 ℃ to+105 ℃) can cope with temperature fluctuations in daily use.

2. Smart homes and IoT devices
 Includes circuit connections for smart sensors (temperature and humidity sensors, lighting sensors), internal interfaces for small smart home controllers (such as smart switches, curtain motor control modules), and power and signal transmission for low-power IoT terminals (such as Wi Fi modules, Bluetooth gateways).
Adaptation reason: Excellent insulation performance (100M Ω insulation resistance, 100V withstand voltage) enhances the electrical safety of equipment, gold-plated contacts and phosphor bronze material ensure long-term stable connection, meeting the needs of “low maintenance, long life” of smart home devices.

3. Industrial control and small instruments and meters
Suitable for signal output interfaces of small industrial sensors (such as miniature pressure sensors, proximity switches), as well as internal circuit connections of portable instruments and meters (such as handheld thermometers, small multimeters).
Adaptation reason: The wide temperature range can withstand temperature changes in industrial environments, and the high-temperature resistant LCP shell (UL94V-0 flame retardant rating) improves the reliability of the equipment in complex environments. The low contact resistance (≤ 30m Ω) reduces signal transmission errors and ensures data accuracy.

4. Automotive electronic auxiliary equipment
0.635mm board to board connector Female 527600678 mainly used for low-power electronic accessories inside cars, such as small sensors in cars (temperature and humidity sensors, seat pressure sensors), internal interfaces for car USB charging modules, or signal connections for driving recorders and reversing image modules.
Adaptation reason: The wide temperature range can cope with high temperature (summer exposure) and low temperature (winter cold) environments inside the car. The flame-retardant shell and insulation performance reduce the electrical safety hazards inside the car, meeting the basic stability requirements of automotive electronics.

Its features：

1. Contact Configuration: 0.635mm board to board connector Female 527600678 features a set of contacts or pins that align with the corresponding contacts on the male connector, allowing for electrical and sometimes mechanical connections.

2. Compatibility: 0.635mm board to board connector Female 527600678 are designed to be compatible with specific male connectors in terms of pitch (spacing between the contacts), number of contacts, and other electrical and mechanical parameters.

3. Mounting Options: 0.635mm board to board connector Female 527600678may be designed for surface mount technology (SMT) or through-hole technology (THT) assembly, depending on the specific application and design requirements.

4. Space Efficiency: 0.635mm board to board connector Female 527600678 are often designed to be space-efficient, especially in applications where compact designs are crucial.

5. Versatility: They are available in various configurations and sizes to accommodate different design and space constraints.

6. Reliable Connection: 0.635mm board to board connector Female 527600678 provide a secure electrical and mechanical connection between PCBs, ensuring reliable performance and signal integrity.

0.635mm board to board connector Female 527600678 are commonly used in a wide range of electronic devices and systems, including consumer electronics, industrial equipment, automotive applications, telecommunications, and more. They play a vital role in facilitating the interconnection of PCBs and electronic components, ensuring that electrical signals, data, and power are transmitted effectively between the interconnected boards.

The following are the codes for different sizes of the 527600478 series

Mating with：

The protection of the0.635mm board to board connector Female 527600678 can be addressed from the following aspects:

• Electrostatic protection: 0.635mm board to board connector Female 527600678 is sensitive to static electricity, and an anti-static wristband should be worn during operation to avoid damage to the internal circuits and components of the connector caused by static electricity.

• Correct selection and matching: Ensure that the connector model used is correct. Different manufacturers may have different naming conventions, so carefully check the parameters. At the same time, the connector and corresponding FFC/FPC cable must be strictly matched to ensure signal integrity.

• Avoid frequent plugging and unplugging: Although the 0.635mm board to board connector Female 527600678 has a self-aligning structure design, frequent plugging and unplugging may still affect its service life. It is recommended to install 0.635mm board to board connector Female 527600678 in place at once to reduce unnecessary plugging and unplugging operations.

• Environmental control: 0.635mm board to board connector Female 527600678 should be avoided from being exposed to high temperatures, humidity, or corrosive substances. High temperature may cause the plastic shell to soften and the metal to expand. Moisture and corrosive substances can corrode the surface coating of the connector, affecting its performance.

• Mechanical protection: During installation and use, strong impacts and collisions should be avoided to prevent damage to the physical structure of the connector, which could affect its electrical performance and connection stability.

• Regular inspection and maintenance: Regularly inspect the appearance of 0.635mm board to board connector Female 527600678 to see if there is wear, deformation, corrosion, etc. If there are any problems, they should be replaced in a timely manner. At the same time, keep the connector clean and avoid the accumulation of dust and dirt.

• Use electrical contact grease: Electrical contact grease can isolate the contact between terminals and oxygen, delay corrosion, reduce the friction coefficient between terminals, reduce insertion and extraction force, prevent moisture intrusion and micro vibration corrosion.