MHF® I LK
Ideal for continuous shock and vibration applications
Patented locking system for MHF® I plug
Mates with all MHF® I receptacles
*For additional solder shear force and better center alignment, please review MHF® I 4 pads receptacle.
*For general MHF® I series information, please review MHF® I.
*"Locking solution" video for an overview, and "How to mate and unmate/ for Narrow pitch" video for handling.
Downloads
-
Catalogs
-
2D Drawings
-
Cable Assemblies
-
O.D. 0.81 mm
Standard orientation
-
O.D. 1.13 mm
Standard orientation
-
O.D. 1.32 mm
Standard orientation
-
O.D. 1.37 mm
Standard orientation
-
O.D. 1.8 mm
Standard orientation
-
-
Accessories
-
-
SI Test Boards
-
3D STEP & IGES
-
STEP
-
IGES
-
-
Specs & Test Reports
-
Product Specification
-
Packing Standard
-
-
-
PCB/FPC Data
-
Symbols & Footprints
Symbols and footprints may be downloaded from an external site, SnapMagic.
-
-
-
Manuals
Ideal for continuous shock and vibration applications
Disengagement force comparison
Patented locking system for MHF® I plug
Mates with all MHF® I receptacles
![]() |
||||
| Product name | MHF® I LK | MHF® I | MHF® I | |
| Lock | With Lock | Without Lock | Without Lock | |
| Mating Height | 2.9 mm max. | 2.5 mm max. | 3.0 mm max. | |
| Coaxial O.D. (Center Conductor AWG) | 2.00 mm (AWG 26) | ● | ||
| 1.80 mm (AWG 30) | ● | ● | ||
| 1.37 mm (AWG 30) | ● | ● | ||
| 1.32 mm (AWG 32) | ● | ● | ||
| 1.13 mm (AWG 32) | ● | ● | ||
| 0.81 mm (AWG 36) | ● | ● | ||
| Receptacle | MHF® I receptacle 20279-001E-03 (3 pads) / 20441-001E-01 (4 pads) | |||
| Product Type | Coaxial RF Connector
|
| Mated Height | 2.9 mm max.
|
| SMT Size | 3.1 x 3.0 mm
|
| Frequency Range | Up to 9 GHz |
| Operating Temperature | |
| Cable Size (Micro-Coaxial) | AWG 30 O.D. 1.8 mmAWG 30 O.D. 1.37 mmAWG 32 O.D. 1.32 mmAWG 32 O.D. 1.13 mmAWG 36 O.D. 0.81 mm
|
| V.S.W.R (Plug) | DC to 3 GHz: 1.3 max.3 to 6 GHz: 1.5 max.6 to 9 GHz: 1.6 max. (O.D. 1.32 mm), 1.9 max. (O.D. 0.81, 1.13, 1.37, 1.8 mm)
|
| Applicable Standards (Reference Only) | 5G sub6Wi-FiLTE / LTE-AdvancedLPWABluetoothGPSLPWABluetoothGPS
|
| Full EMI Shielding (ZenShield®) | No
|
| Mechanical Lock | Yes
|
| note | (*) Please contact us for higher temperature connectors. |
RECOMMENDED PART NUMBERS
Please contact us if you cannot find the needed part number(s) from the list below.
MHF I LK RECOMMENDED PART NUMBERS
| Part Number Description | Part Number | Weight (mg) |
| MHF I LK harness OD=1.80/1.37/1.32/1.13/0.81mm | Offered as harness only | - |
| MHF I receptacle 3 pads | 20279-001E-03 | 16 |
| MHF I receptacle 4 pads | 20441-001E-01 | 16 |
*The MHF I LK is offered as our MHF I LK harness assembly only.
Please specify cable harness assembly specification (single-end or double-ended, cable size, length, color).
MHF I LK SAMPLE HARNESS FOR EVALUATION PART NUMBERS
| Part Number Description | Part Number | Weight (mg) |
| MHF I LK-I LK harness OD=0.81mm L=100mm | 8-25-0458 | 440 |
| MHF I LK-I LK harness OD=0.81mm L=200mm | 8-25-0459 | 640 |
| MHF I LK-I LK harness OD=0.81mm L=300mm | 8-26-0023 | 736.8 |
| MHF I LK-I LK harness OD=0.81mm L=400mm | 8-26-0024 | 903.8 |
| MHF I LK-I LK harness OD=0.81mm L=500mm | 8-25-0460 | 1300 |
| MHF I LK-I LK harness OD=1.13mm L=100mm | 8-23-0118 | 800 |
| MHF I LK-I LK harness OD=1.13mm L=200mm | 8-21-0047 | 840 |
| MHF I LK-I LK harness OD=1.13mm L=300mm | 8-26-0043 | 1130.2 |
| MHF I LK-I LK harness OD=1.13mm L=400mm | 8-26-0044 | 1431.2 |
| MHF I LK-I LK harness OD=1.13mm L=500mm | 8-23-0120 | 760 |
| MHF I LK-I LK harness OD=1.32mm L=100mm | 8-25-0452 | 850 |
| MHF I LK-I LK harness OD=1.32mm L=200mm | 8-25-0453 | 1500 |
| MHF I LK-I LK harness OD=1.32mm L=300mm | 8-25-0996 | 1693.2 |
| MHF I LK-I LK harness OD=1.32mm L=400mm | 8-25-0997 | 2177.2 |
| MHF I LK-I LK harness OD=1.32mm L=500mm | 8-25-0454 | 3390 |
| MHF I LK-I LK harness OD=1.37mm L=100mm | 8-23-0119 | 720 |
| MHF I LK-I LK harness OD=1.37mm L=200mm | 8-21-0049 | 650 |
| MHF I LK-I LK harness OD=1.37mm L=300mm | 8-26-0045 | 1546 |
| MHF I LK-I LK harness OD=1.37mm L=400mm | 8-26-0046 | 1976 |
| MHF I LK-I LK harness OD=1.37mm L=500mm | 8-23-0121 | 710 |
| MHF I LK-I LK harness OD=1.80mm L=100mm | 8-25-0443 | 1090 |
| MHF I LK-I LK harness OD=1.80mm L=200mm | 8-25-0444 | 1950 |
| MHF I LK-I LK harness OD=1.80mm L=300mm | 8-25-1003 | 2565 |
| MHF I LK-I LK harness OD=1.80mm L=400mm | 8-25-1004 | 3335 |
| MHF I LK-I LK harness OD=1.80mm L=500mm | 8-25-0445 | 4630 |
MHF I LK SAMPLE HARNESS FOR EVALUATION PART NUMBERS

| Part Number Description | Part Number | Weight (mg) |
| MHF I LK-I LK harness OD=0.81mm L=100mm 180 degree orientation | 8-25-0880 | 402.8 |
| MHF I LK-I LK harness OD=0.81mm L=200mm 180 degree orientation | 8-25-0881 | 569.8 |
| MHF I LK-I LK harness OD=0.81mm L=300mm 180 degree orientation | 8-25-0882 | 736.8 |
| MHF I LK-I LK harness OD=0.81mm L=400mm 180 degree orientation | 8-25-0883 | 903.8 |
| MHF I LK-I LK harness OD=0.81mm L=500mm 180 degree orientation | 8-25-0884 | 1070.8 |
| MHF I LK-I LK harness OD=1.13mm L=100mm 180 degree orientation | 8-25-0864 | 528.2 |
| MHF I LK-I LK harness OD=1.13mm L=200mm 180 degree orientation | 8-25-0865 | 829.2 |
| MHF I LK-I LK harness OD=1.13mm L=300mm 180 degree orientation | 8-25-0866 | 1130.2 |
| MHF I LK-I LK harness OD=1.13mm L=400mm 180 degree orientation | 8-25-0867 | 1431.2 |
| MHF I LK-I LK harness OD=1.13mm L=500mm 180 degree orientation | 8-25-0868 | 1732.2 |
| MHF I LK-I LK harness OD=1.32mm L=100mm 180 degree orientation | 8-25-0891 | 725.2 |
| MHF I LK-I LK harness OD=1.32mm L=200mm 180 degree orientation | 8-25-0892 | 1209.2 |
| MHF I LK-I LK harness OD=1.32mm L=300mm 180 degree orientation | 8-25-0893 | 1693.2 |
| MHF I LK-I LK harness OD=1.32mm L=400mm 180 degree orientation | 8-25-0894 | 2177.2 |
| MHF I LK-I LK harness OD=1.32mm L=500mm 180 degree orientation | 8-25-0895 | 2661.2 |
| MHF I LK-I LK harness OD=1.37mm L=100mm 180 degree orientation | 8-25-0901 | 686 |
| MHF I LK-I LK harness OD=1.37mm L=200mm 180 degree orientation | 8-25-0902 | 1116 |
| MHF I LK-I LK harness OD=1.37mm L=300mm 180 degree orientation | 8-25-0903 | 1546 |
| MHF I LK-I LK harness OD=1.37mm L=400mm 180 degree orientation | 8-25-0904 | 1976 |
| MHF I LK-I LK harness OD=1.37mm L=500mm 180 degree orientation | 8-25-0905 | 4105 |
| MHF I LK-I LK harness OD=1.80mm L=100mm 180 degree orientation | 8-25-0917 | 1025 |
| MHF I LK-I LK harness OD=1.80mm L=200mm 180 degree orientation | 8-25-0918 | 1795 |
| MHF I LK-I LK harness OD=1.80mm L=300mm 180 degree orientation | 8-25-0919 | 2565 |
| MHF I LK-I LK harness OD=1.80mm L=400mm 180 degree orientation | 8-25-0920 | 3335 |
| MHF I LK-I LK harness OD=1.80mm L=500mm 180 degree orientation | 8-25-0921 | 4105 |
MHF I LK SAMPLE HARNESS FOR EVALUATION PART NUMBERS
| Part Number Description | Part Number | Weight (mg) |
| MHF I LK-SMA Jack harness OD=1.13mm L=100mm | 8-25-0049 | 3900 |
| MHF I LK-SMA Jack harness OD=1.13mm L=150mm | 8-25-0050 | 4000 |
| MHF I LK-SMA Jack harness OD=1.13mm L=200mm | 8-25-0051 | 4200 |
| MHF I LK-SMA Jack harness OD=1.37mm L=100mm | 8-25-0069 | 4200 |
| MHF I LK-SMA Jack harness OD=1.37mm L=150mm | 8-25-0070 | 4400 |
| MHF I LK-SMA Jack harness OD=1.37mm L=200mm | 8-25-0071 | 4700 |
Other Part Numbers
Please note: This list potentially includes products without available samples and end-of-life items.
For new inquiries, please reference the recommended part numbers listed above.
MHF I LK OTHER PART NUMBERS
| Part Number Description | Part Number | Weight (mg) |
| MHF I receptacle 3 pads | 20279-001E-05 | 16 |
| MHF I receptacle 3 pads | 20279-001E-06 | 16 |
MHF I LK ACCESSORIES PART NUMBERS
| Part Number Description | Part Number | Weight (mg) | Image |
| MHF I/I LK SMA adapter for plug electrical-performance-check | 90193-001 | 2293.7 |
|
| MHF I/I LK adapter for plug voltage-check | 90194-001 | 709.1 |
|
| MHF I/I LK SMA adapter for receptacle electrical-performance-check | 90193-002 | 1453.3 |
|
| MHF I/I LK SMA adapter for receptacle high-cycle | 90539-001 | 6737.3 |
|
| MHF series SMA adapter for receptacle high-cycle narrow-pitch cable L=100mm | 90577-0100 | 4503.2 |
|
| MHF series SMA adapter for receptacle high-cycle narrow-pitch cable L=200mm | 90577-0200 | 5358.9 | |
| MHF series SMA adapter for receptacle high-cycle narrow-pitch cable L=350mm | 90577-0350 | 6571 | |
| MHF series SMA adapter for receptacle high-cycle narrow-pitch cable L=750mm | 90577-0750 | 9769.8 | |
| MHF I/I LK SMA adapter for receptacle high-cycle narrow-pitch probe | 90575-0001 | 1499 |
|
| MHF series SMA adapter for receptacle high-cycle detachable base | 90684-0001 | 15104.1 |
|
| MHF I/I LK SMA adapter for receptacle high-cycle detachable probe | 90416-001 | 1650 |
|
| MHF I LK extraction tweezer | 91026-0001 | 980 |
|
| MHF I LK extraction tweezer narrow-pitch | 91492-0001 | 3740 |
|
SI Test Board with 2.92mm Adapter
| Part Number Description | Part Number | Weight (mg) | Image |
| SI Test Board for MHF I | 91604-001B-001 | 17788 |
Main Board |
Locking/Unlocking and Insertion/Extraction tweezer to handle MHF® I LK
Hand Tools to operate locking/unlocking and insertion/extraction.
| Unlocking, Extraction tweezer | Narrow Pitch, Locking/Unlocking, Extraction tweezer |
Unlock the lock and remove it while holding the plug. |
The narrow-pitch design enables unlocking as well as insertion and removal, making it suitable for work in confined spaces. |
Adapters for plugs and receptacles
For plug inspection, Electrical Performance Check and Voltage/Continuity Check tools are provided.
Receptacle inspection tools, on the other hand, support Electrical performance check only.
The lineup includes various types to suit different applications, such as Standard series, High Cycle types with different durability ratings, and narrow-pitch types that enable operation on high-density PCB layouts.
| Standard series | High Cycle Series | ||
| Standard type | Narrow Pitch type | Detachable type | |
| Durability: 500 | Durability: 10,000 | Durability: 10,000 (Probe), 100 (Cable) | Durability: 10,000 (Probe), 200,000 (Base) |
Since the receptacle and the adapter are manually mated, the durability cycles are limited to 500. This type is best suited for inspection in small scale production environments, such as laboratories. |
The Standard type connects directly from the probe to the measuring instrument. |
The Narrow pitch type is designed with a tight pitch, allowing multiple probes to be aligned and measured simultaneously. |
The Detachable type allows the adapter and probe to be removed and replaced. The base adapter is compatible with all series. |
SI Test boards for signal integrity performance measurement
Signal Integrity testing, measures and analyzes the extent to which high-speed signals maintain their integrity when transmitted through a connector.







