The MHF4 Retention Clip provides a reliable way to keep MHF4 connectors firmly attached to PCB-mounted jacks, preventing accidental disconnection caused by vibration, handling, or cable tension.

Prevents loosening or detachment of MHF4 connectors from board-mounted jacks. Because the MHF4 interface is extremely small and optimized for minimal footprint, it does not incorporate a built-in locking feature. In applications where movement, shock, or repeated servicing occur, the connector can gradually lift off the jack — leading to intermittent RF failures or complete loss of signal.

Data Alliance developed this retention clip specifically to address that problem. It applies a controlled downward force over the MHF4 plug, ensuring that the connection remains fully seated under normal and elevated operating conditions. This makes it ideal for embedded wireless modules, IoT devices, laptop repairs, drones, robotics, industrial controls, and any design where connector stability is critical.

Key Features

• Mechanical stability for MHF4 connections

Holds the connector securely in place, reducing the risk of disconnection from vibration, movement, or cable pull.

• Purpose-built for PCB-mounted MHF4 jacks

Designed to fit standard MHF4 board layouts and jack heights used on WiFi, LTE/5G, GPS, and other RF modules.

• Ultra-lightweight, low-profile design

Adds almost no height or mass to the assembly — ideal for tight enclosures and space-constrained devices.

• Easy installation

The clip can be mounted using existing board features or standoffs, depending on your mechanical design. No modification to the jack or connector is required.

• Consistent contact pressure

Ensures a uniform hold across the top of the connector, maintaining optimal electrical engagement without overstressing the jack.

• Durable construction

Manufactured from high-strength material chosen for longevity, flexibility, and stable retention force over time.

Why Use a Retention Clip?

MHF4 connectors are engineered for extremely small-scale RF applications, but the compact size comes with certain challenges:

• The push-on interface does not lock.

• Connectors can lift off the jack from cable strain.

• Vibration or thermal cycling may loosen the connection.

• Devices with frequent servicing or movement often experience intermittent RF performance due to micro-disconnects.

The MHF4 Retention Clip solves these issues by adding a mechanical layer of security, protecting the integrity of the RF path and improving long-term reliability in the field.

Applications

• IoT gateways and modules

• Consumer electronics

• Industrial M2M devices

• Drones and robotics

• Automotive/transport applications

• Wireless development boards

• Any RF design using MHF4 connectors

Specifications

• Compatibility: Standard MHF4 plug + jack assemblies on PCB

• Material: High-resilience, low-creep engineered material

• Profile: Ultra-low to maintain clearance in compact products

• Mounting: Works with common PCB standoff or frame configurations

Package Includes

• 1 × MHF4 Retention Clip

• (Optional) Mounting instructions or recommended mounting configurations

Benefits for RF Reliability

Adding a retention clip dramatically reduces support issues associated with:

• Field failures due to low RF signal

• Intermittent antenna connection

• Accidental cable displacement

• Long-term vibration fatigue

This makes the clip an inexpensive, high-impact reliability upgrade for any device where MHF4 connectors are used.

Order From the Original Source

Data Alliance is the designer, exclusive manufacturer, and exclusive source of the MHF4 Retention Clip. This ensures consistent quality, controlled tolerances, and ongoing availability for OEM and production-scale customers.