Quad HFM Mini FAKRA to 4× FAKRA Automotive RF Coaxial Cable Assembly: Features, Applications and Selection Guide
PCM-ZC-0012 is a quad HFM Mini FAKRA to four FAKRA Z Code automotive RF breakout harness. One compact four channel HFM interface is separated into four independent 50Ω DACAR 302-4 coax paths for ADAS cameras, GMSL, FPD-Link, cockpit electronics and domain-controller links.
What Does This Article Cover?
This article provides a complete technical overview of the Premier Cable PCM-ZC-0012 Quad HFM Mini FAKRA to 4 × FAKRA Z Code automotive RF coaxial cable assembly from four perspectives: high-speed automotive coaxial interconnection, connector-interface definition, RF-link engineering and vehicle-harness integration.
The article explains:
- what HFM / High-Speed FAKRA-Mini is;
- why a quad HFM housing can integrate four independent coaxial channels;
- the actual genders of AMK12D-1M4Z5-Z and 59Z113-000-Z;
- how Mini FAKRA differs from conventional FAKRA in footprint and system positioning;
- why 50Ω impedance matters in GMSL, FPD-Link and automotive RF links;
- how the DC–6GHz specification should be interpreted;
- whether a four-way breakout actually splits one RF signal into four;
- what Z-Code mechanical coding can and cannot guarantee;
- why a 0.15m and a 10m cable can have very different insertion loss even if both are described as operating up to 6GHz;
- and how to select length, gender, coding and channel mapping according to cameras, SerDes devices, ECUs, domain controllers and vehicle topology.
Quick Product Introduction
PCM-ZC-0012 uses a 1 to 4 physical breakout architecture, with one high density quad HFM interface at P1 and four independent FAKRA interfaces at P2 through P5.
| Product Type | Mini FAKRA 4-in-1 to 4 x FAKRA RF Coaxial Breakout Cable |
| Premier Cable P/N | PCM-ZC-0012 |
| P1 Interface | Rosenberger AMK12D-1M4Z5-Z; Mini FAKRA Plug, Z Code, 4 Channel |
| P2/P3/P4/P5 Interface | Rosenberger 59Z113-000-Z ;FAKRA Plug, Z Code, 4 Outputs |
| Wire rod | LEONI DACAR 302-4 Coaxial Cable |
| Nominal Impedance | 500 Nominal |
| Working temperature | -40°C to +105°C |
| Frequency Range | DC-6GHz |
PCM-ZC-0012 vs IX to RJ45 Male Cable
| Comparison | PCM-ZC-0012 | Four Separate FAKRA Cables |
|---|---|---|
| ECU Side | 1 x Quad HFM | 4 x FAKRA |
| Device Side | 4 x FAKRA Jack | 4 x FAKRA |
| ECU Space | Compact | Larger footprint |
| Main Application | Multi-camera | Conventional routing |
Important:
PCM-ZC-0012 is not an RF splitter.
It simply breaks out the four independent coaxial channels inside a quad HFM interface into four separate FAKRA interfaces.
What Is High-Speed FAKRA-Mini ?
HFM is Rosenberger's High-Speed FAKRA-Mini automotive high-speed coaxial connector system.
Compared with conventional FAKRA, its design priorities include:
- smaller connector footprint;
- higher interface density;
- single, double and quad housing configurations;
- 50Ω coaxial architecture;
- mechanical coding;
- locking;
- support for high-speed SerDes applications.
Rosenberger documentation identifies modular single, double and quad constructions and positions HFM for compact high-density applications including ADAS, autonomous driving, navigation and infotainment.
What Is Quad HFM ?
Quad HFM should not be interpreted as a conventional connector with four ordinary electrical pins.
Instead, it integrates:
four independent coaxial interfaces within one housing.
Each channel has its own:
- center conductor;
- dielectric;
- outer shield;
- RF signal path.
Quad HFM therefore allows four high-frequency coaxial links to be concentrated within a smaller ECU connector area.
This is particularly valuable in high-interface-density systems such as:
ADAS ECUs;central computing units;domain controllers;camera aggregators;infotainment controllers.
Pain Points
Core Product Value
PCM-ZC-0012
The core value of PCM-ZC-0012 goes beyond simple "Mini FAKRA-to-FAKRA" interface adaptation.
Designed for multi-camera ADAS, smart cockpit and automotive high-speed data systems, it establishes four independent, clearly mapped and traceable 50Ω point-to-point automotive coaxial links between one centralized high-density four-channel Quad HFM interface at the ECU and four distributed single-channel FAKRA devices.
This architecture maintains independent signal paths while reducing ECU-side connector count and packaging space, with clear branch mapping improving harness assembly, system integration, testing and maintenance efficiency.
Core Product Features ：
◆ Quad HFM to Four Independent FAKRA Architecture
P1 uses an AMK12D-1M4Z5-Z Quad HFM jack integrating four coaxial channels into one compact housing. Four independent P2–P5 FAKRA outputs connect cameras, RF modules or other devices, improving ECU interface density and routing flexibility.
◆ 50Ω Independent Coaxial Transmission & Length Options
Each branch uses 50Ω LEONI DACAR 302-4 automotive coaxial cable for independent shielding and impedance control. Lengths from 0.15 m to 10 m are available, with OEM customization based on vehicle packaging, routing and link-budget requirements.
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Compatibility Statement
Interface, Gender and Channel Mapping Must Be Verified Together
PCM-ZC-0012 provides physical interconnection between a Quad HFM interface and four FAKRA channels. Although both belong to 50Ω automotive coaxial systems, their mechanical design, mating interface and gender differ.
The harness uses a Quad HFM Jack → 4× FAKRA Jack architecture, and matching Z coding alone does not guarantee complete compatibility. Connector family, gender, center contact and four-channel mapping must be verified to maintain correct camera, ECU-port and software assignments.
Passive Breakout With No Protocol Conversion; RF Performance Depends on the Complete Link
PCM-ZC-0012 is a passive breakout of four independent coaxial channels, not a one-to-four RF splitter, and provides no signal copying, amplification, SerDes processing or protocol conversion.
HFM serves only as the physical interconnect; protocols such as GMSL or FPD-Link remain determined by active devices. DC–6GHz performance also depends on cable length, insertion loss, return loss, connectors and assembly quality, so each length requires link-budget evaluation. The 800VRMS value should be treated as a Hi-Pot/test parameter, not continuous operating voltage.
How to Select the Correct Product ?
Verify Gender, Housing and Mating Connector
Do not specify only "Mini FAKRA to four FAKRA." Confirm the P/N, gender, coding and mating connector for P1 and P2–P5. PCM-ZC-0012 uses one HFM jack to four FAKRA jacks, so the connected devices must provide the corresponding plug interfaces.
Verify Four-Channel Mapping
Multi-camera systems should clearly define the relationship between each channel and the front, rear, left and right cameras or ECU ports. Engineering drawings, harness labels, electrical testing and software configuration must follow the same mapping to prevent channel misconnection.
Evaluate Link Budget by Frequency and Length
Different cable lengths should not share the same "6GHz performance" assumption. Evaluate the complete link budget using protocol, SerDes, data rate, cable length, insertion loss, return loss, BER and temperature, and validate against the GMSL or FPD-Link channel specification.
Select Cable and Testing for the Installation Environment
Vehicle installation should be evaluated for static or dynamic routing, temperature, vibration, bend radius, retention and EMC requirements. Automotive coaxial cable is not automatically suitable for drag-chain or repeated flexing, so dynamic applications require dedicated flexibility validation.
Customization Capabilities
↕ HFM Interface & Housing Customization
HFM jack/plug, single/double/quad, straight and angled configurations are customizable according to P/N, gender, coding and ECU mating-interface requirements.
□ FAKRA Interface & Gender Customization
P2–P5 can be customized with FAKRA jack/plug, housing and connector configurations to correctly match the gender and mating interface of cameras or devices.
◉ Coding, Color & Channel Identification
Multiple FAKRA codings, housing colors and branch identifiers are available, with mechanical keying verified to ensure correct mating rather than color-only differentiation.
⚙ Cable & Branch-Length Customization
Beyond standard 0.15–10m lengths, custom branch lengths, staggered breakouts and trunk configurations are available based on routing and insertion-loss requirements.
⌘ Cable Type & RF Performance Customization
50Ω automotive coaxial cables can be selected by loss, OD, flexibility and temperature requirements, with customized VSWR, insertion-loss, return-loss and VNA testing.
◇ Channel Mapping, Labeling & Testing
Custom CH1–CH4, camera ID, ECU port, barcode and customer P/N labeling is available with continuity, mapping, Hi-Pot and RF-performance testing.
Product FAQ
Does "4-in-1" Mean One Signal Is Split Into Four ?
No. A quad HFM contains four independent coaxial channels, each routed to its own FAKRA interface. PCM-ZC-0012 contains no RF power divider and does not duplicate signals.
Is It a GMSL Converter ?
No. It is a passive coaxial cable assembly. It can serve as a physical link in a compatible GMSL system but contains no serializer or deserializer and performs no protocol conversion.
Do Four 50Ω Channels Equal 200Ω ?
No. The four channels are independent 50Ω coaxial paths. Their impedances should not be added together to obtain 200Ω.
Why Can the HFM Platform Operate Higher While This Product Is Specified to 6GHz ?
The maximum capability of a connector platform is not the same as the qualified capability of a finished cable assembly. PCM-ZC-0012 performance depends on DACAR 302-4, cable length, crimp transitions, connectors and finished-assembly testing, so the product page should use the validated assembly range rather than simply copying the HFM platform maximum.
Is Z Code a Universal Code ?
Z coding provides a defined mechanical coding and identification function, but it does not make every HFM, FAKRA, ECU and camera automatically compatible. Series, gender, mating interface and signal definition must still be verified.
Can the FAKRA Branches Be Changed to Plug Interfaces ?
Yes. The FAKRA branches can be redesigned with an appropriate plug architecture according to the mating device, but the housing, RF contact, cable group, coding and complete BOM must be reconfirmed.
