Service hotline
+86 0755-23615795
Release date:2025-08-08Author source:KinghelmViews:772
In the wave of modern electronic devices pursuing extreme thinness and functional integration, every millimeter of PCB space is precious. It is under these stringent design requirements that the Kinghelm Type-A Right-Angle Receptacle KH-AF90QC-10JB-H6.8SMT emerges as the preferred solution for engineers facing the dual challenges of space constraints and connection reliability. Optimized for Surface Mount Technology (SMT), this USB Type-A receptacle connector features an ingenious right-angle design. It abandons the Z-axis space occupation typical of traditional vertical connectors, hugging the PCB surface closely. This unlocks valuable layout freedom for increasingly compact smartphones, ultra-thin tablets, and highly integrated portable devices. Its model designation Kinghelm KH-AF90QC-10JB-H6.8SMT itself encodes key specifications – particularly "H6.8" clearly indicates its ultra-low mounting height of just 6.8mm, a highly competitive figure within its class, removing a critical barrier for ultra-thin device design.
Kinghelm KH-AF90QC-10JB-H6.8SMT Product Image
The core value of the Kinghelm KH-AF90QC-10JB-H6.8SMT lies in its exceptional performance and robust, reliable quality. It strictly adheres to universal USB specifications. Its internal, precisely engineered 4-pin (4P) structure forms the physical guarantee for high-speed data flow and stable power transmission. For data, it seamlessly supports high-speed transmission modes defined by USB protocols, ensuring users experience smooth and efficient large file transfers or high-quality media synchronization. For power, its 1.5A rated current carrying capacity provides a solid energy foundation for fast charging and stable operation of various peripherals, particularly meeting the fundamental requirements of modern fast-charging ecosystems. The receptacle's rugged durability stems from the relentless pursuit of material science and manufacturing processes. Its core contact springs are typically made of high-performance phosphor bronze, undergoing precision stamping and forming, followed by plating (such as gold or selective gold plating) with excellent wear and corrosion resistance. This ensures extremely low and stable contact resistance is maintained over frequent mating cycles (designed for tens of thousands of cycles), preserving signal integrity long-term. The housing utilizes high-strength engineering plastics with good flame retardancy (e.g., compliant with UL94 V-0 rating) and mechanical strength, effectively protecting the internal precision structure against impact and stress during daily use. Particularly commendable is its low insertion force design. Users experience smooth and effortless connection of USB devices, reducing operational burden and significantly minimizing the risk of physical damage to the port caused by undue force, thereby enhancing user-friendliness and product lifespan.
Another essence of its design is deep adaptation to modern mass production. The fully SMT (Surface Mount Technology) package form is key to its integration into efficient automated manufacturing flows. Precision tape-and-reel packaging ensures accurate feeding and pickup by high-speed pick-and-place machines. Flat solder pad designs are perfectly compatible with industry-standard reflow soldering temperature profiles, significantly boosting assembly line speed, consistency, yield rates, and lowering overall manufacturing costs. This design not only optimizes production efficiency but also drastically reduces manual soldering steps required for traditional through-hole components, making it an ideal component for the modern electronics manufacturing shift towards automation and intelligence.
The application footprint of the KH-AF90QC-10JB-H6.8SMT spans a wide spectrum of electronic fields. On the consumer electronics front, it is the indispensable charging and data transfer portal for smartphones, tablets, ultrabooks, and portable gaming consoles, its slim profile and high-speed capabilities perfectly aligning with the DNA of mobile devices. In office environments, it reliably serves printers, scanners, multifunction devices, external storage drives, and keyboard/mouse receivers, forming the physical bridge for efficient device collaboration. Within the wave of automotive electrification, it plays a significant role, integrated into in-vehicle infotainment systems and aftermarket charging modules, providing convenient charging and data connectivity for occupants. More notably is its successful penetration into industrial and medical professional fields. In industrial automation control panels, HMI (Human-Machine Interface) devices, sensor data acquisition units, as well as portable medical testing instruments and diagnostic equipment, its stable and reliable connection performance, ability to withstand moderate environmental variations (note: extreme environments should still be avoided), and ease of automated production make it a trusted choice for internal or external data exchange and low-power device power supply within professional equipment. Its broad compatibility ensures seamless connection to the vast array of standard USB Type-A cables and devices on the market, greatly facilitating end-user device interoperability.
To fully leverage its outstanding performance and ensure long-term stable operation, correct installation and usage are paramount. During the PCB design phase, it is crucial to ensure the connector footprint pad layout perfectly matches the device datasheet. In the SMT assembly process, precise solder paste printing and strict adherence to recommended reflow soldering parameters are the foundation for guaranteeing reliable solder joints and avoiding defects like cold solder or bridging. During use, applying excessive lateral force, bending force, or impact to the port or connected USB devices must be absolutely avoided, as these improper actions are common causes of solder joint cracking, plastic housing breakage, or permanent deformation of internal contact springs. This connector is not designed for harsh environments. Continuous exposure to high humidity, high temperatures (exceeding specification limits), strong corrosive gases, or liquids will accelerate its aging, significantly impacting electrical performance and mechanical lifespan. Users should periodically inspect the port condition. If noticeable physical damage, abnormal mating looseness, or unstable contact (such as intermittent charging or frequent data transfer interruptions) is observed, immediate discontinuation of use and seeking professional repair or replacement is advised to prevent potential safety hazards or further device damage.
Kinghelm KH-AF90QC-10JB-H6.8SMT Specification
The Kinghelm Type-A Right-Angle Receptacle KH-AF90QC-10JB-H6.8SMT is far more than a simple physical port. It is an engineering marvel born from the context of modern electronic design characterized by space constraints and stringent performance demands. It translates the inherent universal connectivity power of the USB standard into a powerful design tool for engineers, realized through its right-angle design, SMT process friendliness, 1.5A current capacity, and the reliable quality and ultra-low 6.8mm height promised by the Kinghelm KH-AF90QC-10JB-H6.8SMT model. From smartphones in pockets to industrial control cabinets on production lines, from the cabins of speeding vehicles to precise medical instruments, its presence is ubiquitous, silently bearing the critical tasks of data flow and power delivery. As electronic devices continue their journey towards miniaturization, functional diversification, and production intelligence, such high-performance, highly reliable, easily integrable miniaturized interconnect components will persistently play the foundational role of enabling innovation and connecting the world – a value destined to become ever more prominent.
About Kinghelm
Shenzhen Kinghelm Electronics Co., Ltd.(www.kinghelm.net)has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples.
Copyright © Shenzhen Kinghelm Electronics Co., Ltd. all rights reservedYue ICP Bei No. 17113853