『Product Highlight』Kinghelm SMT Pin Header KH-2.54PH-2X22P-L11.0-SMT: Compact but Capable

2025-10-30 11:39:37 56

<span style="font-family: arial, helvetica, sans-serif; font-size: 18px; color: #262626;">Compact but Capable: Exploring the KH-2.54PH-2X22P-L11.0-SMT Dual-Row SMT Pin Header</span>

In modern electronic design, achieving reliable connections within a limited PCB area is a constant challenge. This article focuses on the Kinghelm KH-2.54PH-2X22P-L11.0-SMT—a dual-row surface-mount pin header with a 2.54mm pitch, 2x22P configuration, and 11.0mm total length—uncovering its structure, practical value, and layout insights for real-world applications.

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Kinghelm KH-2.54PH-2X22P-L11.0-SMT Product Image

Product Overview: A Pin Header Tailored for SMT Density

The KH-2.54PH-2X22P-L11.0-SMT from Kinghelm is designed for surface-mount technology (SMT) assembly. Built on a 2.54mm pitch, this dual-row header offers a total of 44 pins arranged compactly to maximize connection density. With a total height of 11.0mm and an individual weight of about 2.93 grams, it suits both prototype development and automated production environments. Each unit is conveniently packaged in protective bags for ease of storage and handling.

Key Technical Specifications

Brand: Kinghelm

Model: KH-2.54PH-2X22P-L11.0-SMT

Mounting Type: SMD / SMT

Pitch: 2.54mm

Configuration: Dual-row 2x22P (44 pins)

Total Height: 11.0mm

Rated Current: 3A

Contact Resistance: Max. 20mΩ

Insulation Resistance: Min. 1000MΩ

Dielectric Withstanding Voltage: AC 1000V

Operating Temperature: -40°C to +105°C

Application Scenarios: Where It Fits Best

This pin header is suitable for a variety of PCB connection needs, including:

Signal and power interfaces on compact or modular circuit boards.
Expansion boards or I/O modules requiring dual-row pin layouts for easy connection.
Devices where connectors need to be replugged during maintenance or testing.
Prototype boards requiring reliable and easy-to-solder SMT connectors.

PCB Layout and Assembly Tips

To ensure solid solder joints and reliable performance during reflow soldering, consider the following layout and process tips:

Pad Design: Use manufacturer-recommended pad sizes and maintain consistent pad spacing for stable placement.
Solder Paste Stencil: Match stencil openings to pad areas to prevent bridging between adjacent pins.
Component Fixation: When reflowing tall components (like 11.0mm headers), ensure mechanical stability with proper fixtures or support plates.
Thermal Profile: Follow standard SMT reflow profiles while keeping peak temperatures below component tolerance limits.
Testing Access: Leave sufficient probe clearance for ICT or functional testing if needed.

Electrical and Mechanical Reliability

The KH-2.54PH-2X22P-L11.0-SMT balances compact form with robust electrical ratings:

3A Rated Current: Suitable for moderate current paths and control signals.
Low Contact Resistance (≤20mΩ): Ensures minimal voltage drop and stable signal integrity.
High Insulation (≥1000MΩ) & 1000V Dielectric Strength: Reduces leakage and cross-talk in multi-signal systems.
Wide Temperature Range (-40°C to +105°C): Supports reliable operation in varied industrial and consumer environments.

Choosing the Right Header: More Than Just Pin Count

When selecting headers for your design, it’s worth considering more than just the number of pins. Evaluate factors such as PCB thickness, mating connector type, required insertion cycles, and compatibility with automated assembly. The KH-2.54PH-2X22P-L11.0-SMT provides a well-balanced option for compact designs without sacrificing reliability or manufacturing ease.

Frequently Asked Questions

●Is this header suitable for high-speed signals?

It primarily supports standard signal and low-power transmission. For high-speed differential signals (USB, LVDS, etc.), impedance control on PCB traces and validation tests are recommended.

●Can it be hand-soldered?

Although designed for SMT reflow, it can be manually soldered for small batch repairs or prototypes with proper temperature control. Wave soldering is not typically used for this package type.

●How can I confirm the footprint dimensions?

Use the footprint drawing provided by Kinghelm or design pads according to the 2.54mm pitch standard. Allow enough clearance between pads to prevent solder bridging.

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Kinghelm KH-2.54PH-2X22P-L11.0-SMT Specification

Final Thoughts: Reliability Built into the Details

The Kinghelm KH-2.54PH-2X22P-L11.0-SMT showcases how thoughtful mechanical design and electrical performance can coexist in a small form factor. By focusing on pad layout, reflow temperature control, and mechanical support during assembly, engineers can reduce rework rates and improve consistency across production batches.

Want to compare similar models? Explore other 2.54mm dual-row SMT headers from Kinghelm or check compatibility between your PCB layout and recommended footprints before finalizing your design.

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.

KH-2.54PH-2X22P-L11.0-SMTProduct Details

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『Product Highlight』Kinghelm SMT Pin Header KH-2.54PH-2X22P-L11.0-SMT: Compact but Capable

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