- The new materials support 800GbE used for next-generation high-speed communication technology.
- Comparison of MEGTRON8 R-579Y(U), R-5795(U) and MEGTRON7 R-578Y(N), R-5785(N), improving transmission loss by about 30% (@28GHz) and contributing to improvement in the signal processing performance of high-speed communication networking equipment.
Circuit Board Materials
- Part Number
- Application
- Detailed use
・Network
・Wireless
・Wireless
Routers, Switches, Optical Transmission Equipment, Servers, AI Servers, Base Stations, Semiconductor Test Equipment, Probe Cards, etc.
New part number
Ultra-low Df glass cloth type
Laminate R-579YS(U)
Prepreg R-569YS(U)
Low Dk glass cloth type
Laminate R-579YS(N)
Prepreg R-569YS(N)
Existing part number
Ultra-low Df glass cloth type
Laminate R-5795S(U)
Prepreg R-5690S(U)
Low Dk glass cloth type
Laminate R-5795S(N)
Prepreg R-5690S(N)
New part number
Ultra-low Df glass cloth type
Laminate R-579Y(U)
Prepreg R-569Y(U)
Low Dk glass cloth type
Laminate R-579Y(N)
Prepreg R-569Y(N)
Existing part number
Ultra-low Df glass cloth type
Laminate R-5795(U)
Prepreg R-5690(U)
Low Dk glass cloth type
Laminate R-5795(N)
Prepreg R-5690(N)
- There might be some differences in UL certification conditions between the existing part numbers and the new part numbers. Please contact a sales representative in charge or this form for the detail.
Any letters with parentheses ( ) at the end of a part number are for identification code in our company and are not included in the part numbers registered for UL certification.
Properties
Dk 3.08 Df 0.0012
@14GHz
@14GHz
Tg (DMA)
220°C
220°C
T288 (with copper)
>120min
>120min
Video
Transmission loss performance Ranking in MEGTRON series
Frequency dependence by transmission loss
General properties
| Item | Test method | Condition | Unit | MEGTRON8S R-579YS(U) R-5795S(U) Ultra-low Df glass cloth | MEGTRON8S R-579YS(N) R-5795S(N) Low Dk glass cloth | MEGTRON8 R-579Y(U) R-5795(U) Ultra-low Df glass cloth | MEGTRON8 R-579Y(N) R-5795(N) Low Dk glass cloth | |
| Glass transition temp.(Tg) | DMA | A | °C | 220 | 220 | 220 | 220 | |
| CTE z-axis | α1 | IPC-TM-650 2.4.24 | A | ppm/°C | 35 | 35 | 50 | 50 |
| α2 | 240 | 240 | 270 | 270 | ||||
| T288(with copper) | IPC-TM-650 2.4.24.1 | A | min | >120 | >120 | >120 | >120 | |
| Dielectric constant(Dk) | 14GHz | BCDR | C- 24/23/50 | － | 3.19 | 3.22 | 3.08 | 3.13 |
| Dissipation factor(Df) | 0.0012 | 0.0015 | 0.0012 | 0.0016 | ||||
| Peel strength | 1oz (35µm) | IPC-TM-650 2.4.8 | A | kN/m | 0.7 [H-VLP3] | 0.7 [H-VLP3] | 0.7 [H-VLP3] | 0.7 [H-VLP3] |
The sample thickness is 0.75mm.
The above data are typical values and not guaranteed values.
Related information
[ Product summary ]
- New part number
- Existing part number
Download PDF- Download PDF
[ Data Sheet ]
- New part number
- Existing part number
- IPC Standards R-579Y(U), R-579Y(N)
(English document) - IPC Standards R-5795(U), R-5795(N)
(English document)
series