USB interfaces are widely used across electronic devices, and the Type-A connector remains one of the most familiar formats. With its rectangular shape and defined insertion direction, it is commonly found in computers, chargers, and peripheral equipment. Even as newer interface types continue to develop, Type-A is still used in many existing systems for data transfer and basic power supply.

In practical applications, the reliability of a connector can directly affect overall device performance. This is especially true in scenarios involving frequent plugging and unplugging or long operating hours. The Kinghelm KH-3.0AF180WJ-13.7JB USB Type-A female connector is designed with a balanced approach to meet these everyday requirements.

Standard Structure for Easy Integration

The KH-3.0AF180WJ-13.7JB adopts a standard USB Type-A female interface with a single port and a 9-pin configuration, supporting USB 3.0 functionality. It features a through-hole (DIP) mounting design, which is commonly used in applications requiring stronger mechanical fixation.

With a body length of 13.7 mm, the connector is suitable for typical PCB layouts. The blue insulator helps identify it as a USB 3.0 interface, making it easier to distinguish during assembly and maintenance.

Material selection for Practical Use

This connector uses a combination of commonly applied materials:

• The insulator is made of LCP, suitable for handling soldering temperatures

• The contacts are made of H65 brass, with thicknesses of 0.20 mm and 0.25 mm

• The shell is constructed from SPCC cold-rolled steel with a thickness of 0.30 mm

For surface treatment, the connector is nickel-plated overall, with tin plating in the soldering area and gold plating in the contact area. This helps maintain stable electrical contact and reduces the impact of environmental factors over time.

Electrical Performance for General Applications

The electrical specifications of the KH-3.0AF180WJ-13.7JB include:

• Rated current: 1.5A

• Rated voltage: 30V

• Contact resistance: up to 30mΩ

• Insulation resistance: ≥100MΩ at 500V DC

• Withstanding voltage: 100V AC for 1 minute

These parameters are suitable for standard data transmission and low-power supply needs, such as computer peripherals and USB-enabled devices.

Mechanical Durability

Frequent insertion and removal require a connector to maintain consistent performance. This model offers:

• Mating cycles: at least 1,500 times

• insertion/withdrawal force: 5N to 35N

The metal shell structure adds to the overall strength, helping maintain connection stability in environments with minor vibration or movement.

Operating Environment

The connector is designed to operate within the following temperature ranges:

• Operating temperature: -25°C to +70°C

• Storage temperature: -40°C to +85°C

These ranges cover most indoor applications and some outdoor conditions, making it suitable for a variety of usage scenarios.

Typical Applications

The KH-3.0AF180WJ-13.7JB can be used in a range of devices, including:

• Desktop computers and peripherals

• USB chargers and power adapters

• Industrial control boards

• Embedded systems

• In-vehicle electronic auxiliary interfaces

In these applications, the Type-A interface continues to provide a stable and widely compatible connection method.

Summary

Although interface technologies continue to evolve, USB Type-A connectors are still widely used in many systems. The KH-3.0AF180WJ-13.7JB offers a balanced combination of structure, materials, and performance, making it suitable for general-purpose applications.

With proper selection and usage, this type of connector can support stable operation in everyday electronic devices.

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.