Panasonic Industry electronic materials
Panasonic Megtron & PCB Materials: Halogen-Free R-Series, Hiper & Felios
Panasonic is best known for Megtron, but its circuit-board materials span four families: Megtron high-speed laminates (Megtron 2 to 8), halogen-free R-series such as R-1566 and R-5575, Hiper automotive multilayer materials, and Felios flexible laminates.
- High speed
- Megtron 2 → 8
- Halogen-free
- R-1566
- Automotive
- Hiper V/D/M/E
- Flex PI / LCP
- Felios
Panasonic overview
Panasonic circuit board materials at a glance.
Panasonic Industry (electronic materials division) makes copper-clad laminates and prepregs for multilayer, high-speed, automotive and flexible circuits. Its product line is organised in four families: Megtron (high-speed, low-loss), the Halogen Free R-series, Hiper (automotive multilayer) and Felios (adhesiveless flex).
Most of our Panasonic work is on Megtron 6, 7 and 8 for servers, switches and AI accelerators, but we also build on halogen-free R-1566 and Hiper grades when a drawing calls them out, and on Felios polyimide or LCP for flex and rigid-flex.
Product line
Panasonic PCB material families.
| Family | Grades | Positioning | On our site |
|---|---|---|---|
| MEGTRON (high speed) | Megtron 2, 2E (halogen-free), M, 4, 4S, 6, 7, 8 | Mid-loss to ultra-low-loss multilayer for networking, servers and AI | Megtron 6, 7 & 8 |
| Halogen Free | R-1566 / R-1551, R-A555W / R-A550W, R-5515, R-5575, R-5410 prepreg | Halogen- and antimony-free multilayer, low-Dk, power amplifier and mmWave radar | This page |
| Hiper (automotive) | Hiper V, Hiper D, Hiper M, Hiper E | High heat resistance, CAF and through-hole reliability for vehicles | Automotive PCB |
| Felios (flex) | Felios Polyimide, Felios LCP, Felios FRCC | Adhesiveless flex laminates for mobile, medical, industrial and avionics | Flex PCB |
Megtron series
Panasonic Megtron: from Megtron 2 to Megtron 8.
Megtron is Panasonic’s high-speed family. Megtron 2 and 2E (halogen-free) and Megtron M are the entry grades; Megtron 4 and 4S are mid-loss materials for 10G-class links; Megtron 6 (R-5775) is the industry reference for 25–56G; Megtron 7 (R-5785) halves its loss for 56–112G PAM4; and Megtron 8 (R-5795) targets 112–224G for next-generation switches and AI fabrics. Panasonic has also announced Megtron 9 for 224 Gbps.
| Grade | Series | Df (typ.) | Typical data rate |
|---|---|---|---|
| Megtron 2 / 2E | — | Mid loss | Up to ~10G, halogen-free option |
| Megtron 4 / 4S | R-5725 | ≈ 0.005–0.007 | 10G, PCIe Gen 3/4 |
| Megtron 6 | R-5775 | ≈ 0.004 @ 1 GHz | 25–56G |
| Megtron 7 | R-5785 | ≈ 0.002 @ 1 GHz | 56–112G PAM4 |
| Megtron 8 | R-5795 | Below Megtron 7 | 112–224G |
Full grade selection, fabrication notes and hybrid stack-ups are on the Megtron 6, 7 & 8 page.
Halogen-free R-series
Panasonic R-1566 and other halogen-free laminates: R-5575, R-5515.
Panasonic’s Halogen Free series is halogen- and antimony-free and rated UL 94 V-0. R-1566 laminate with R-1551 prepreg is the general halogen-free multilayer material with high heat resistance. R-A555W / R-A550W is a low-Dk halogen-free system, R-5515 is an ultra-high-speed halogen-free material for power amplifiers, and R-5575 is an ultra-high-speed material for millimetre-wave radar; R-5410 is a prepreg for mmWave antennas.
| Grade | Panasonic positioning | Typical use |
|---|---|---|
| R-1566 / R-1551 | Halogen-free multilayer circuit board material | Consumer, industrial, telecom boards requiring halogen-free |
| R-A555W / R-A550W | Low Dk halogen-free | Faster digital where FR-4 Dk is too high |
| R-5515 | Ultra high speed, halogen-free, for power amplifiers | Base-station PA boards |
| R-5575 | Ultra high speed, for millimetre-wave radar | 24/77 GHz radar |
| R-5410 | Prepreg for millimetre-wave antennas | Antenna build-ups |
Hiper automotive
Panasonic Hiper V, D, M and E automotive multilayer materials.
The Hiper series is Panasonic’s multilayer range for automotive and other harsh environments. Panasonic describes Hiper V, Hiper D, Hiper M and Hiper E as high-heat-resistance materials with proven CAF resistance, through-hole reliability and good laminate processability for lead-free assembly. We use them when an automotive drawing specifies them; otherwise we usually propose Shengyi Autolad or S1000-2M class grades, only with your approval.
| Grade | Use |
|---|---|
| Hiper V | Automotive multilayer, lead-free |
| Hiper D | Automotive multilayer, lead-free |
| Hiper M | Automotive multilayer, lead-free |
| Hiper E | Automotive multilayer, lead-free |
See automotive PCB for qualification, PPAP and traceability.
Felios flex
Panasonic Felios flexible laminates.
Felios is Panasonic’s adhesiveless flexible circuit material line, offered in several film and copper-foil thicknesses: Felios Polyimide for general and dynamic flex, Felios LCP (liquid crystal polymer) for low-loss, low-moisture high-frequency flex, and Felios FRCC. Panasonic targets mobile devices, medical, industrial and avionics applications. We build flex and rigid-flex on Felios when specified; the more common default is DuPont Pyralux or Taiflex.
| Grade | Base | Typical use |
|---|---|---|
| Felios Polyimide | Adhesiveless polyimide | Dynamic and static flex, rigid-flex |
| Felios LCP | Liquid crystal polymer | High-frequency flex, antennas, low moisture |
| Felios FRCC | Flexible resin-coated copper | Thin build-ups |
Choosing a family
Which Panasonic material do I need?
| Requirement | Panasonic family | Common alternative |
|---|---|---|
| 10–112G SerDes, servers, AI | Megtron 4 / 6 / 7 / 8 | Shengyi Synamic, ITEQ IT-968 / IT-988GSE, Isola Tachyon |
| Halogen-free multilayer | R-1566 | Shengyi S1150G / S1170G |
| mmWave radar | R-5575, R-5410 | Rogers RO3003, Shengyi mmWave77 |
| Automotive multilayer | Hiper V / D / M / E | Shengyi Autolad |
| Flex or rigid-flex | Felios Polyimide / LCP | DuPont Pyralux, Taiflex |
Fabrication
Fabricating boards on Panasonic laminates.
Megtron and the halogen-free R-series process on standard multilayer lines with adjusted lamination cycles and drill parameters. For low-loss grades we specify HVLP or RTF copper and spread glass on signal layers, model impedance with construction-specific Dk, and add back-drilling and TDR coupons for SerDes nets. Some Megtron 8 and R-series constructions are made to order, so lead time is confirmed at quote.
- Construction-specific Dk/Df in impedance and loss models
- HVLP / RTF copper on high-speed layers
- Spread glass for long differential pairs
- Confirm stock and lead time at quote
RFQ
What to include in a Panasonic material RFQ.
- Laminate name and grade exactly as on your drawing, or “or equivalent” if substitution is allowed
- Panasonic grade and series number (e.g. “Megtron 6, R-5775”; “R-1566”)
- Data rate or frequency, and copper roughness requirement
- Halogen-free or automotive requirements
- Layer count, finished thickness and tolerance
- Impedance targets and reference layers
- IPC class, quantity and schedule
FAQ
Material questions.
What PCB materials does Panasonic make?
Four families: Megtron high-speed laminates, the Halogen Free R-series (R-1566, R-5515, R-5575), Hiper automotive multilayer materials and Felios flexible laminates.
What is Panasonic Megtron?
Panasonic Megtron is the low-loss laminate family for high-speed digital boards, from Megtron 2 to Megtron 8. See Megtron 6, 7 & 8.
What is Panasonic R-1566?
R-1566 is Panasonic’s halogen-free multilayer laminate (prepreg R-1551) with high heat resistance, used where boards must be halogen- and antimony-free.
What is Panasonic Felios?
Felios is Panasonic’s adhesiveless flexible laminate line, in polyimide, LCP and FRCC versions, for mobile, medical, industrial and avionics flex circuits.
Is Megtron 6 the same as R-5775?
Yes. R-5775 is the Panasonic product number for Megtron 6 laminate; Megtron 7 is R-5785 and Megtron 8 is R-5795.
Do you stock Panasonic materials?
Megtron 6 and 7 are regularly used; other grades are ordered per job, so lead time is confirmed at quote.
Ready when your files are
Send your stack-up for a material check.
Upload Gerber, ODB++ or IPC-2581 data. Every quote includes a written engineering DFM review, typically within one business day.