MHF® 4L LK / Micro RF Coaxial Connector with locking function

The micro RF connector MHF® 4L LK features a patented locking mechanism that significantly enhances plug retention compared to standard micro RF connectors.

 MHF® Series Locking Function


The MHF® micro RF connector series has an LK type equipped with a locking function. Its patented mechanical locking feature greatly improves the plug retention force compared to common micro RF connectors in the same category in the market.

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Compared to the MHF® 4L Connector, which is a general friction lock type micro RF connector that does not have an additional mechanical lock function, the initial plug mating retention force of the MHF® 4L LK with mechanical lock applied is doubled. In addition, after mating and unmating the MHF® 4L LK Plug 30 times without applying mechanical lock, the mating retention force with mechanical lock is about three times that of the MHF® 4L Connector. This high retention force makes it possible for the MHF® 4L LK to ensure high signal connection reliability even under the continuous impact and vibration from road conditions.

Disengagement force comparison
Disengagement force comparison

The high mating retention force helps to improve assembly efficiency on the production line and helps reduce product manufacturing costs by reducing the additional banding tape or adhesive application process to ensure that the connector stays mated in the production line. It also reduces fixture material removal process during maintenance or inspections.

 

Locking / Unlocking Method and Locking Status Check

​In addition, the connector’s simple and easy-to-understand one action locking and unlocking mechanism (sliding the lock cover back and forth) and the “check window” function that allows the user to visually check the lock status enhance the reliability of the lock during handling.

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Locking and Unlocking Process and Lock Status Check Window

With the development of communication technologies such as IoT and 5G, the digitization and networking in the automotive market will continue to grow. Further development of integrated intelligent cockpits and head units equipped with wireless communication functions is happening more frequently.
The MHF® 4L LK Connector won wide acclaim from customers' production line Supplier Quality engineer as an ideal product for such wireless communication devices that need to ensure stable connectivity.

MHF® Connector Series with Locking Functions

Product Names  Key Features Applicable Cable Size
MHF® I LK Frequency range: Up to 9 GHz AWG#30 (O.D. 1.80 mm & 1.37 mm)
AWG#32 (O.D. 1.32 mm & 1.13 mm)
AWG#36 (O.D. 0.81 mm)
MHF® 4L LK Frequency range: Up to 12 GHz AWG#30 (O.D. 1.37 mm)
MHF®-TI High retention force (90N minimum) AWG#24 (O.D. 3.00 mm)
AWG#26 (O.D. 2.80 mm)

Related Topics

협피치용 JIG를 사용한 삽발방법 : How to mate, lock, unlock and unmate the MHF® 4L LK Micro RF Coaxial Connector.
How to mate, lock, unlock and unmate the MHF® 4L LK Micro RF Coaxial Connector.
I-PEX manufacturers connectors for a wide variety of equipment applications. We will discuss the "Locking functions of connectors” in this webinar.
i-Fit®테크놀로지는, I-PEX독자적인 무납땜 결선 방식으로, I-PEX의 소형 RF 커넥터(MHF®) 시리즈의 최대 특징입니다. 무납땜 결선의 경우, 안정된 전기 특성을 실현하면서, 케이블 결선시에 납땜 공정을 사용하지 않는 것으로부터, 생산 공정의 기계화도 비교적 용이하기 때문에, 효율적이고 생산성이 높은 점퍼 하네스로서 노트북이나 태블릿, 휴대 전화나 라우터 등 많은 통신 기기의 안테나 모듈 접속에 사용되고 있습니다.