USB 3.0 AF 90° SMD

USB 3.0 AF 90° SMD is a 90-degree right-angle surface-mount connector compliant with the USB 3.0 Type-A standard. Its core advantages lie in space-saving design and high-speed, stable transmission, making it ideal for electronic devices with compact internal layouts. Below is a detailed introduction covering four key dimensions: core structure, key parameters, core advantages, and typical applications.

Core Structure & Materials

The connector features a standard Type-A interface with 9 pins. Four pins are dedicated to USB 2.0 power supply (VBUS, GND) and data transmission (D+, D-), while the other five pins handle USB 3.0 high-speed differential signal pairs (TX+, TX-, RX+, RX-) and enhanced grounding, ensuring signal isolation during high-speed transmission. The housing is available in copper, iron, or stainless steel, with insulators in colors like white and black—some models use blue insulators to distinguish from USB 2.0 interfaces.

Adopting SMD (Surface Mount Device) packaging, it is soldered onto PCB boards via reflow soldering. The 90-degree right-angle design allows the interface to sit parallel to the PCB after installation, significantly saving vertical space for tight internal device layouts. Some models come with bent grounding tabs or covered bent pins to enhance mounting stability.

Terminals are mostly made of phosphor bronze, with gold or tin plating (1U-30U thickness) to ensure conductivity and wear resistance. Insulating components are crafted from high-temperature resistant materials such as PA9T and LCP, meeting reflow soldering requirements with a flame retardancy rating of UL 94 V-0 for enhanced safety. The housing is typically nickel-plated iron or stainless steel, boosting structural strength and anti-interference performance.

Performance Parameters

Data transmission adheres to the USB 3.0 standard, boasting a theoretical rate of 5Gbps and backward compatibility with USB 2.0. It efficiently handles high-speed transfer of HD videos and large files, with some manufacturers specifying a stable actual transmission rate of approximately 4.8Gbps.

Current-carrying capacity varies by model: VBUS and ground pins have a rated current of 1A-3A, while standard signal pins carry around 0.25A, suitable for powering devices like USB flash drives and external hard disks.

In terms of mechanical performance, the insertion/extraction force ranges from a minimum of 10N to a maximum of 35N, with a typical insertion cycle life of 5,000-10,000 times. The compact size (e.g., 16.54×13.3×7.05mm for some models) makes it suitable for small electronic devices.

For electrical safety, it offers a withstand voltage of AC 100V-500V, contact resistance ≤0.05Ω, and insulation resistance ≥100MΩ, effectively preventing leakage and signal loss.

It exhibits strong environmental adaptability, operating within a temperature range of -20℃ to 85℃ (some models extend to -40℃ to 85℃), compatible with common indoor and outdoor electronic device working environments.

Core Advantages

Excellent space adaptability: The 90-degree right-angle + SMD design solves installation challenges of traditional through-hole connectors in space-constrained products like ultra-thin laptops, mini power banks, and automotive devices, enabling more flexible internal device layouts.

Stable transmission with anti-interference: Separated multi-pin design plus metal housing shielding reduces electromagnetic interference (EMI) during high-speed transmission, ensuring signal integrity. It is ideal for scenarios requiring high transmission stability, such as industrial control and audio-visual equipment.

Compatible with automated production: Standardized SMD packaging works seamlessly with high-precision pick-and-place machines, simplifying processes like solder paste printing and reflow soldering. It improves mass production efficiency of electronic devices while reducing manual installation errors.

Application Scenarios

Consumer electronics: Commonly used as an interface component for laptops, tablets, smart TVs, and game consoles. It is also widely adopted as an output interface for power banks and multi-port chargers.

Digital & audio-visual equipment: Compatible with data cable interfaces of digital cameras and camcorders, as well as devices like DAC converters, professional audio interfaces, and video capture cards, ensuring high-speed and stable transmission of HD audio-visual data.

Automotive & industrial electronics: Suitable for in-vehicle infotainment systems, rear-seat entertainment interfaces, industrial computers, industrial cameras, and PLC programming ports. Its robust housing and stable connection performance withstand vibrations and temperature fluctuations in automotive and industrial environments.

Other fields: Frequently used in medical equipment (e.g., blood pressure monitors, hospital call systems), electronic toys, and smart home devices (e.g., smart cameras, electronic scales) to fulfill dual functions of data transmission and power supply.

KKG Electronics, each part of the use of temperature-resistant materials, high-temperature testing equipment 260 ℃ for 5 minutes, the appearance of the product does not change!

Q: Is this connector compatible with USB 2.0 devices and cables?

A: Yes, it is fully backward compatible with USB 2.0 standards. It works seamlessly with USB 2.0 devices, cables, and interfaces while maintaining stable performance.

Q: Can it support USB 3.1 or USB 3.2 devices?

A: It follows the USB 3.0 standard (5Gbps) and is compatible with USB 3.1/3.2 devices, but the actual transmission rate will be limited to 5Gbps (USB 3.0's maximum speed).

Q: What is the maximum data transfer speed and current rating?

A: The theoretical data transfer speed is up to 5Gbps, and the rated current of VBUS/ground pins ranges from 1A to 3A (varies by model). It meets the needs of most high-speed data transfer and power supply scenarios.

Q: What is the operating temperature range of this connector?

A: The standard operating temperature is -20℃ to 85℃, with some models supporting -40℃ to 85℃, suitable for both indoor and harsh environmental applications.

Q: How many insertion/extraction cycles can it withstand?

A: The typical insertion cycle life is 5,000-10,000 times, ensuring long-term reliable use in daily or industrial scenarios.

Q: What soldering process is required for this SMD connector?

A: It is designed for reflow soldering, which is compatible with standard automated production lines and high-precision pick-and-place machines.

Q: Does the 90° design affect the insertion and removal of USB cables?

A: No, the 90° right-angle design is optimized for space-saving without compromising cable insertion/extraction convenience. It fits perfectly in compact device layouts.