KH-A42002-2X4A 4.2mm Pitch 8-Pin Wire-to-Board Connector: 7A Current Rating and 600V Voltage Rating

In electronic equipment, power modules, industrial control systems, and wiring harness applications, connectors play an important role in ensuring stable electrical connections and efficient assembly. When an application requires a combination of current capacity, voltage rating, compact multi-pin configuration, and reliable PCB mounting, selecting the right wire-to-board connector becomes essential. The Kinghelm KH-A42002-2X4A is a 4.2mm pitch wire-to-board connector featuring a 2×4P, 8-pin dual-row configuration and straight-through PCB mounting. With a 7A rated current and 600V rated voltage, together with brass tin-plated contacts and a PA66 insulating housing, this connector provides a practical solution for PCB and wire harness interconnection in a wide range of electronic applications.

Kinghelm KH-A42002-2X4A Product Image

4.2mm Pitch and 8-Pin Dual-Row Design for Efficient PCB Connections

The Kinghelm KH-A42002-2X4A is a plug-in wire-to-board connector designed for direct PCB mounting. It features a 2×4P configuration, with two rows and four pins per row, for a total of eight contacts. The 4.2mm pitch provides a balanced combination of connection density, insulation spacing, and mechanical accessibility.

The straight-through mounting structure makes the connector suitable for through-hole PCB assembly and allows wires or harnesses to be connected to the board in an organized manner. This configuration can be particularly useful in power boards, industrial control equipment, electronic modules, automation systems, and other applications requiring multiple electrical connections within a relatively compact area.

The connector has a 12.8mm Z-axis board height and an 11.4mm Y-axis board-side width. These dimensions provide useful reference information for PCB layout and mechanical enclosure design. For engineers developing new electronic products, considering connector height and board footprint during the early design stage can help improve overall assembly efficiency.

The transparent housing also provides convenient visual identification of the connector structure and pin arrangement, which can be helpful during assembly, inspection, and maintenance.

7A Rated Current and 600V Rated Voltage for Power and Control Applications

Electrical performance is one of the key factors when selecting a wire-to-board connector. The Kinghelm KH-A42002-2X4A is rated for 7A current and 600V AC/DC, making it suitable for various power and control connection applications when the system operating conditions are within the specified limits.

The contacts are manufactured from brass and tin-plated to provide a reliable conductive interface while supporting practical PCB assembly and soldering processes. According to the product specifications, the connector has a maximum contact resistance of 20mΩ and a minimum insulation resistance of 1000MΩ.

The connector also provides a 1500V AC/1 minute withstand voltage rating, offering an important electrical insulation specification for equipment designers and engineers.

For actual applications, however, the appropriate operating current and voltage should always be evaluated together with wire size, PCB copper thickness, ambient temperature, connector temperature rise, duty cycle, and other system-level factors. The rated values should be used as engineering reference specifications rather than as the sole criteria for connector selection.

PA66 Housing and UL94V-2 Flammability Rating

Material selection has a direct impact on the mechanical and electrical performance of a connector. The KH-A42002-2X4A uses PA66 as the insulating housing material and features a UL94V-2 flammability rating.

PA66 is widely used in electrical and electronic components because of its mechanical strength and heat resistance. The specified operating temperature range of this connector is -25°C to +85°C, covering many common indoor electronic equipment, industrial control, power supply, and automation applications.

The brass contacts are tin-plated, providing a practical contact material configuration for general electrical interconnection. Combined with the PA66 housing, the connector is designed to provide a stable mechanical structure and electrical interface for PCB-to-wire applications.

For engineers and purchasing teams, these specifications make the KH-A42002-2X4A a useful option when looking for a 4.2mm pitch PCB connector, 8-pin wire-to-board connector, 7A connector, or 600V connector.

Kinghelm KH-A42002-2X4A Specification

Kinghelm KH-A42002-2X4A for PCB and Wire Harness Interconnection

Overall, the Kinghelm KH-A42002-2X4A wire-to-board connector combines a 4.2mm pitch, 2×4P dual-row configuration, 8 total pins, straight PCB mounting, 7A rated current, and 600V rated voltage in one practical connector design.

Its brass tin-plated contacts, PA66 insulating housing, UL94V-2 flammability rating, and -25°C to +85°C operating temperature range provide engineers with key specifications for evaluating the connector in electronic equipment and wiring applications.

The KH-A42002-2X4A can be considered for applications such as power supply boards, industrial control systems, automation equipment, electronic modules, PCB assemblies, wiring harnesses, and other wire-to-board interconnection applications where the specified electrical and mechanical conditions are suitable.

When selecting a connector, engineers should consider not only the rated current and voltage, but also pitch, number of pins, PCB mounting method, board height, wire specifications, operating temperature, insulation requirements, and available installation space.

If you are looking for a 4.2mm pitch wire-to-board connector, 8-pin PCB connector, 7A wire-to-board connector, or 600V connector, the Kinghelm KH-A42002-2X4A can be evaluated according to your specific application requirements.

About Kinghelm

Kinghelm (www.kinghelm.net) is engaged in the design, manufacturing, sales, and technical services of wireless signal transmission and reception products, electronic signal connectors, and interconnect system products. It has long provided stable and reliable components and selection support for consumer electronics, industrial control, automotive electronics, smart home, and other fields. Kinghelm has a rich product line, covering push-button switches, micro switches, multi-function switches, illuminated switches, DIP switches, toggle switches, as well as connection and interface solutions such as earphone jacks, DC jacks, FPC connectors, USB connectors, and waterproof USB. It also provides detection switches, limit switches, encoder switches, tactile push buttons, Type female sockets, Type-C interfaces, joystick switches, five-key switches, thumbwheel switches, etc., to meet diverse operation and signal transmission needs. For high-density mounting and complex working conditions, Kinghelm also offers SMD detection switches, vertical detection switches, through-hole detection switches, and SMD encoder switches, balancing sensitivity, service life, and waterproof and dustproof performance. From smart wearables and home appliance control boards to industrial equipment and automotive modules, Kinghelm continuously optimizes materials and structures to ensure that every press, insertion/removal, and detection is stable and reliable. Whether for selection and prototyping or volume delivery, Kinghelm helps customers quickly bring projects to market with quality, delivery, and technical service.

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