Waterproof Quad HFM Mini FAKRA Cable: Features, Applications and Selection Guide
PCM-ZC-0036 is an IP67 waterproof four-channel HFM Mini FAKRA to four FAKRA Z Code automotive RF coaxial cable assembly. It uses a Rosenberger AMK14K-1M4Z5-Z waterproof Quad HFM Mini FAKRA female connector, four Rosenberger 59Z163-003-Z waterproof FAKRA Z Code female connectors, and LEONI Dacar 302-4 automotive 50-ohm coaxial cables to provide centralized connectivity and breakout extension for four independent RF channels. The completed cable assembly is designed for operation from DC to 6GHz and is available in 0.5m, 1m, 2m, 3m, and 5m lengths. It features IP67 protection, VSWR ≤1.80, a minimum dielectric withstand voltage of 800VRMS, 100% continuity testing, cable retention force of at least 110N, and an operating temperature range from -40°C to +105°C. Typical applications include ADAS, automotive cameras, radar, navigation, telematics, and high-speed automotive data connectivity.
What Is This Article About ?
As ADAS, autonomous driving, multi-camera vision systems, radar, navigation, and automotive communication systems continue to expand, automotive electronic equipment must accommodate more high-speed RF channels within limited installation space. At the same time, vehicle chassis areas, exterior camera locations, and other environments exposed to moisture or dust place higher requirements on connector sealing performance.
A Waterproof Quad HFM Mini FAKRA RF Coaxial Cable uses one waterproof four-channel HFM Mini FAKRA interface to centralize four independent 50-ohm coaxial links, while four separate waterproof FAKRA Z Code interfaces provide breakout connections. This arrangement combines high-density connectivity, multi-channel routing, RF transmission, and environmental protection.
Using PCM-ZC-0036 as an example, this article explains what this waterproof four-in-one automotive RF coaxial cable assembly is, how it works, why it is used, what 50-ohm impedance and 6GHz operation mean, how IP67 should be interpreted in real engineering applications, and how to select and customize the cable correctly for ADAS, camera, radar, and high-speed data systems.
Quick Product Introduction
| Product Name | Quad HFM Mini FAKRA to 4 FAKRA RFCoaxial Cable |
| Connector A | IP67 Waterproof Quad Mini FAKRA Z Code Female |
| Connector A P/N | Rosenberger AMK14K-1M4Z5-Z |
| Connector B | 4 Waterproof FAKRA Z Code Female Connectors |
| Connector B P/N | Rosenberger 59Z163-003-Z |
| Coaxial Cable | LEONI Dacar 302-4 |
| Length | 0.5m,1m,2m,3m,5m |
| Nominal Impedance | 50 Ohm Nominal |
| Premier Cable P/N | PCM-ZC-0036 |
Technical Note: The Rosenberger HFM product family includes quad-channel and waterproof variants and the connector family itself supports higher-frequency applications. However, the PCM-ZC-0036 finished cable assembly described in this article uses DC to 6GHz as its specified target operating range according to the supplied product drawing. Final cable assembly performance should be confirmed against the approved drawing and finished-product test results.
What Is the Difference Between Waterproof Quad HFM and Four Separate FAKRA Cables ?
| Comparison | Four independent FAKRA harnesses | Waterproof Quad HFM to 4 FAKRA |
|---|---|---|
| Controller End Interface | 4 independent interfaces | 1 four channel HFM interface |
| Device End Space | Need to install 4 interfaces separately | Four channels centralized at one HFM interface |
| Installation operations | Need to connect multiple ports separately | HFM end can be centrally connected |
| Waterproof Design | Depends on specific connector version | This product uses IP67 waterproof interface |
The most important difference is not whether four signals are available, because both solutions can maintain four independent coaxial channels. The primary difference is the connection density on the controller side.
Quad HFM integrates four coaxial interfaces into one compact connector structure, reducing the number of separate equipment-side connectors. Rosenberger positions HFM as a high-density automotive Mini-Coax system and states that it can provide significant space savings compared with conventional FAKRA, making it suitable for ADAS, autonomous driving, and multi-sensor systems.
What Is a Waterproof Quad HFM Mini FAKRA RF Coaxial Cable ?
A Waterproof Quad HFM Mini FAKRA RF coaxial cable is an automotive multi-channel passive RF interconnection cable assembly.
One end of PCM-ZC-0036 uses a Rosenberger AMK14K-1M4Z5-Z waterproof Quad HFM Mini FAKRA Z Code female connector containing four independent coaxial signal paths. The opposite side breaks out into four Rosenberger 59Z163-003-Z waterproof FAKRA Z Code female connectors.
Four LEONI Dacar 302-4 automotive coaxial cables establish four independent 50-ohm transmission paths.
Electrically, therefore, the product is not a splitter that converts one signal into four signals. Its architecture is:
Four independent RF channels → integrated into one Quad HFM housing → mapped to four independent FAKRA interfaces.
The cable assembly contains no RF splitter, SerDes device, PHY, amplifier, deserializer, or protocol conversion chipset.
Why Is This Product Used ?
Traditional multi-camera or multi-sensor systems may require multiple independent FAKRA interfaces on a domain controller, ECU, or central computing platform.
As the number of channels increases, multiple separate interfaces consume more PCB-edge and housing space while increasing mating operations, cable organization, and port-management requirements.
Quad HFM centralizes four coaxial links through one high-density multi-channel interface, allowing a more compact equipment-side connector layout while retaining the FAKRA ecosystem at the breakout side for connection to cameras, radar modules, navigation units, or other automotive electronics.
When the system is exposed to moisture, dust, exterior camera locations, or other harsh environments, waterproof HFM and FAKRA connector variants can further improve environmental protection around the interface.
Product Pain Point Analysis
Product Value Explanation
PCM-ZC-0036
◆ High Density Four Channel Integration
One Quad HFM interface centralizes four independent RF channels, reducing the layout burden created by multiple separate RF connectors on the controller side.
◆ Retaining the Existing FAKRA Ecosystem
The breakout side retains FAKRA-type interfaces, allowing cameras, sensors, navigation units, and telematics devices using FAKRA connectors to be physically interconnected with high-density HFM equipment.
Rosenberger lists FAKRA applications including cameras, sensors, navigation, telematics, infotainment, and mobile communication.
◆ Improved Interface Protection in Harsh Environments
The IP67 waterproof connector configuration is suitable for automotive electronic installations with defined dust and moisture protection requirements and can be evaluated for exterior cameras, sensors, and other exposed connection locations.
◆ Improved Cable Harness Modularity
Four RF channels enter the controller through one integrated interface and break out independently on the device side, allowing camera systems, test platforms, and centralized computing architectures to use a more modular cable harness design.
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Compatibility Statement
Mechanical Compatibility and Channel Management
PCM-ZC-0036 compatibility requires verification of connector part numbers, contact genders, coding, channel count, sealing structures, and mating interfaces.
Z coding does not replace channel management. Independent labels and port definitions help prevent incorrect connections. Mechanical mating alone does not guarantee electrical or system compatibility.
High-Speed Protocol and Automotive Ethernet Compatibility
PCM-ZC-0036 is a four-channel 50Ω passive coaxial cable assembly that can be evaluated for GMSL, FPD-Link, APIX, and applicable Automotive Ethernet applications.
Compatibility requires verification of PHY, SerDes, transmission medium, impedance, power delivery, cable length, and link budget. The product does not provide protocol or PHY conversion.
How to Select the Correct Product ?
Confirm Complete Connector Part Numbers First
Do not provide only a general description such as "Quad Mini FAKRA required" or "FAKRA Z Code required" to the cable manufacturer.
Provide the complete equipment-side connector part number and interface images and confirm the mating structure.
Standard PCM-ZC-0036 uses:
HFM side: AMK14K-1M4Z5-Z
FAKRA side: 4 × 59Z163-003-Z
If the equipment interfaces are different, connector matching must be reassessed.
Select Cable Length According to the Link Not Only Mechanical Distance
Standard lengths include:
0.5m, 1m, 2m, 3m, and 5m.
Mechanical distance is only one part of cable-length selection.
For high-speed video or data links, consider:
Mechanical Distance + Routing Margin + Cable Loss + SerDes Link Budget
Particularly for 3m and 5m lengths, identical high-speed performance to a 0.5m version should not be assumed without testing.
Confirm the Required Waterproof Condition
Customers should clearly define whether the IP67 requirement applies to:
- Mated connector condition;
- Complete cable assembly;
- Connector interface area;
- Exterior vehicle installation;
- Temporary immersion;
- Vehicle washing exposure;
- Long-term humidity;
- Salt-spray environment.
Different operating conditions require different validation tests.
Confirm Complete RF Link Requirements
Procurement or engineering teams should provide at least:
- Frequency range;
- Data rate;
- Protocol;
- SerDes model;
- Target cable length;
- Maximum insertion loss;
- Return loss requirement;
- VSWR requirement;
- Power-over-coax requirement;
- Temperature requirement;
- Waterproof requirement.
This information allows the manufacturer to determine whether a standard cable can be used directly or whether alternative cable construction and additional validation are required.
Customization Capabilities
↕ Cable Length Customization
Customize cable and branch lengths for different equipment layouts, with RF performance validated at the actual cable lengths.
□ HFM Connector Configuration Customization
Customize HFM connector gender, waterproof structure, coding, cable exit direction, and interface configuration to meet equipment mating requirements.
◉ FAKRA Interface Customization
Customize 50Ω automotive coaxial cables based on diameter, attenuation, shielding, and temperature requirements, with termination performance verified.
⚙ Coaxial Cable Customization
Customize 50Ω automotive coaxial cables based on diameter, attenuation, shielding, and temperature requirements, with termination performance verified.
⌘ Four-Channel Breakout and Identification Customization
Customize four-channel branch lengths, spacing, labels, and retention structures to improve cable management and reduce incorrect connections.
◇ Testing Standards and Quality Documentation Customization
Customize continuity, dielectric withstand, RF, and waterproof testing requirements, with test reports and batch traceability documentation provided according to customer quality agreements.
Product FAQ
Is This a One to Four RF Signal Splitter ?
No.
PCM-ZC-0036 contains four independent point-to-point coaxial channels.
The Quad HFM connector only integrates four interfaces into one connector housing. It does not automatically duplicate one signal into four signals.
If a project requires a true 1-to-4 RF splitter, an additional RF power-divider circuit is required. That is a different technical product category.
Does IP67 Mean the Connector Is Always Waterproof When Unmated ?
No.
Connector ingress protection normally needs to be confirmed under defined installation and test conditions.
Actual waterproof performance may differ if the connector is unmated, not fully locked, missing seals, or incorrectly terminated.
Therefore, the required IP67 acceptance condition should be clearly defined for exterior cameras or exposed installations.
Can a 5 Meter Cable Still Reliably Carry 6GHz Signals ?
This must be determined from finished-product testing and the system link budget.
A cable assembly designed for DC-to-6GHz operation is not the same as guaranteeing that every 5m link meets a fixed loss limit at 6GHz.
Longer cables generally introduce greater high-frequency attenuation.
For a 5m high-speed application, verify:
- 6GHz insertion loss;
- Return loss;
- VSWR;
- Receiver margin;
- Actual camera-to-ECU communication performance.
Can the Four FAKRA Branches Have Different Lengths ?
Yes.
For example, in a multi-camera system where four cameras are installed at different locations, each breakout branch can be designed with a different length according to the equipment layout.
However, the mapping of every channel should be defined in advance to prevent incorrect camera-channel to HFM-channel assignment.
Can Different FAKRA Colors and Codings Be Customized ?
Different FAKRA colors and codings can be evaluated according to the actual mating connectors.
Different codings can help reduce the risk of mis-mating in systems containing multiple RF interfaces.
However, the complete equipment-side FAKRA part number and actual mating interface must be confirmed before customization. Selection should not be based on color alone.
What Information Is Required Before Custom or Wholesale Purchasing ?
For custom manufacturing, wholesale purchasing, and OEM production of Waterproof Quad HFM Mini FAKRA cables, customers are encouraged to provide:
- Complete HFM connector part number;
- Complete FAKRA connector part number;
- Four-channel pin mapping;
- Cable length;
- Four breakout branch lengths;
- Communication protocol;
- SerDes model;
- Operating frequency;
- Power-over-coax requirements;
- IP rating;
- Temperature range;
- VSWR or insertion-loss acceptance requirements;
- Sample quantity;
- Estimated production volume.
More complete project information helps reduce repeated confirmation during sampling and minimizes specification discrepancies during mass production.
