In electronic assemblies, connectors play a quiet but essential role. While they are rarely the focus of a design, they directly influence signal continuity, assembly efficiency, and long-term reliability. Female headers are widely used in board-to-board and module interconnection due to their simple structure and flexible compatibility.
The Kinghelm KH-A2541HWV-8P female header is designed around practical connection needs, featuring a 2.54 mm pitch, single-row layout, and square hole structure for stable mating.

Kinghelm KH-A2541HWV-8P Product Image

Basic Product Overview

The Kinghelm KH-A2541HWV-8P belongs to the standard through-hole female header category. It adopts a 1×8 single-row configuration with a total of 8 positions and a pitch of 2.54 mm. This pitch is commonly used across many electronic platforms, making the connector easy to integrate into existing PCB designs.

The contact entry is located on the top side, allowing vertical mating with corresponding pin headers. Combined with its straight through-hole mounting method, the connector fits well into conventional PCB layouts and assembly processes.

Packaged in bags and weighing approximately 0.792 g per piece, this model is suitable for routine production, prototyping, and maintenance applications.

Square Hole Structure and Mechanical Characteristics

One of the notable design features of the KH-A2541HWV-8P is its square hole contact structure. Compared with round hole designs, square holes provide clearer positional guidance when mating with square pins. This structure helps reduce lateral movement after insertion and supports consistent contact alignment.

In applications where connectors may experience repeated insertion, removal, or minor vibration, square hole designs contribute to a more predictable mechanical fit. The single-row configuration also keeps the connector footprint compact, making it easier to arrange multiple interfaces on a PCB without crowding.

Electrical Performance Parameters

The electrical ratings of the KH-A2541HWV-8P are aligned with common requirements for signal and low-to-moderate power connections:

• Current Rating: 3A (AC/DC)

• Voltage Rating: 250V (AC/DC)

• Contact Resistance: 20 mΩ Max

• Insulation Resistance: 1000 MΩ Min

• Withstanding Voltage: 1500V AC for 1 minute

These parameters support stable electrical performance under appropriate design conditions. The connector can be used for both signal transmission and power distribution within its rated limits, helping maintain consistent conductivity during normal operation.

Material selection and Construction

The contact pins of the KH-A2541HWV-8P are made from brass, with gold plating over a nickel layer. This material combination is widely used in connector manufacturing and supports reliable electrical contact while maintaining durability during repeated mating cycles.

The insulating housing is manufactured from PBT material, rated UL94 V-0, and finished in black. PBT offers good thermal resistance and mechanical strength, helping the connector maintain structural integrity during soldering and long-term use.

Overall material selection focuses on stability and compatibility with standard electronic assembly processes rather than complex or specialized structures.

Operating Temperature Range

The connector supports an operating temperature range of -40 °C to +105 °C, covering most indoor electronics and many industrial environments. This range allows the KH-A2541HWV-8P to function across varying ambient conditions without significant impact on mechanical fit or electrical behavior.

In environments where temperature fluctuations occur, material stability becomes an important factor. The combination of brass contacts and PBT housing supports consistent performance within the specified temperature limits.

Installation and Assembly Considerations

The KH-A2541HWV-8P uses a straight through-hole mounting method, compatible with wave soldering and manual soldering processes. The standard 2.54 mm pitch simplifies PCB footprint design and aligns with widely used pin header counterparts.

Top-entry contact orientation makes visual inspection and assembly alignment straightforward. The single-row layout also helps reduce installation errors and simplifies troubleshooting during maintenance or replacement.

Typical Application Areas

Based on its structure and performance characteristics, the KH-A2541HWV-8P female header is commonly used in:

• Connections between control boards and functional modules

• Power and signal interfaces on PCB assemblies

• Internal connections in industrial equipment

• Consumer electronic products requiring modular interconnection

In these applications, the connector serves as a stable interface rather than a feature-focused component, supporting reliable electrical and mechanical connections within the system.

Kinghelm KH-A2541HWV-8P Specification

Conclusion

The Kinghelm KH-A2541HWV-8P female header is designed with clarity and practicality in mind. Its square hole structure, standard 2.54 mm pitch, and single-row layout make it easy to integrate into a wide range of PCB designs. Combined with defined electrical ratings and commonly used materials, this connector provides a dependable solution for everyday electronic interconnection needs.

For designers and manufacturers looking for a straightforward through-hole female header suited to standard applications, the Kinghelm KH-A2541HWV-8P offers a balanced combination of compatibility, stability, and ease of use.

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.