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CLTE-XT 2-Layer 5.1mil PCB Ultra-Thin CLTE series laminate for ADAS and Patch Antennas

Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.

 

1. Rogers CLTE-XT PCB Introduction

CLTE-XT high frequency PCB is a high-performance laminate composed of micro-dispersed ceramic filler, PTFE, and woven fiberglass reinforcement, engineered to deliver improved loss tangent and the lowest insertion loss in its category. Building on the proven reliability of Rogers CLTE series, CLTE-XT PCB material maintains consistent electrical and mechanical properties across an extended temperature range, providing exceptional dimensional stability for demanding high-frequency applications.

 

 

2. PCB Construction Details

Specification Category

Details

Base Material

Rogers CLTE-XT

Layer Count

2 Layers

Board Dimensions

63mm x 35mm (±0.15mm)

Finished Thickness

0.25mm

Copper Weight

1 oz Outer Layers

Min. Trace/Space

5/6 mils

Min. Hole Size

0.3mm

Blind Vias

None

Surface Finish

Immersion Gold

Solder Mask/Silkscreen

None

Electrical Test

100%

 

3. Stackup Structure

CLTE-XT 2-layer rigid PCB utilizes a single CLTE-XT core with a thickness of 0.129mm (5.1mil), sandwiched between two 35μm copper layers, creating a compact 0.25mm overall profile ideal for space-constrained applications.

 

 

4.Board Statistics

 

Components: 6

 

Total Pads: 27 (15 Thru-Hole, 12 Top SMT)

 

Vias: 8

 

Nets: 2

 

Files: Gerber RS-274-X

 

Standard: IPC-Class-2

 

Availability: Worldwide

 

 

5. CLTE-XT Material Features

 

Dielectric Constant: 2.79-2.94 @ 10GHz

 

Dissipation Factor: 0.0010

 

Thermal Coefficient of Dk: -8 ppm/°C

 

CTE: X 12.7/Y 13.7/Z 40.8 ppm/°C

 

Td: 539°C

 

Moisture Absorption: 0.02%

 

Tightest Dk Tolerance in CLTE Family (±0.03)

 

 

6. CLTE-XT Key Benefits

 

Enhanced plated through-hole reliability

 

Consistent lot-to-lot performance repeatability

 

Reduced circuit loss with maintained dimensional stability

 

Stable dielectric constant across temperature variations

 

Reduced stress when attached to ceramic active devices

 

 

7. Typical Applications

 

Advanced Driver Assistance Systems (ADAS)

 

Patch Antennas and Phased Array Antennas

 

Power Amplifiers

 

Ground-based and Airborne Communication Systems

 

Radar Systems

 

8.Data Sheet (CLTE-XT laminates)

Properties

CLTE-XT PCB

Units

Test Conditions

Test Method

Electrical Properties

Dielectric Constant

2.94

-

23˚C @ 50% RH

10 GHz

IPC TM-650 2.5.5.5

Dissipation Factor

0.0010

-

23˚C @ 50% RH

10 GHz

IPC TM-650 2.5.5.5

Dielectric Constant (design)

2.93

-

C-24/23/50

10 GHz

Microstrip Differential Phase Length

Thermal Coefficient of Dielectric Constant

-8

ppm/˚C

-50°C to 150°C

10 GHz

IPC TM-650 2.5.5.5

Volume Resistivity

4.25x10⁸

Mohm-cm

C-96/35/90

-

IPC TM-650 2.5.17.1

Surface Resistivity

2.49x10⁸

Mohm

C-96/35/90

-

IPC TM-650 2.5.17.1

Electrical Strength (dielectric strength)

1000

V/mil

-

-

IPC TM-650 2.5.6.2

Dielectric Breakdown

58

kV

D-48/50

X/Y direc- tion

IPC TM-650 2.5.6

PIM (For antenna only)

-

dBc

-

50 ohm
0.060"

43dBm  1900 MHz

Thermal Properties

Decomposition Temperature (Td)

539

˚C

2hrs @ 105˚C

5% Weight Loss

IPC TM-650 2.3.40

Coefficient of Thermal Expansion - x

12.7

ppm/˚C

-

-55˚C to 288˚C

IPC TM-650 2.4.41

Coefficient of Thermal Expansion - y

13.7

ppm/˚C

-

-55˚C to 288˚C

IPC TM-650 2.4.41

Coefficient of Thermal Expansion - z

40.8

ppm/˚C

-

-55˚C to 288˚C

IPC TM-650 2.4.41

Thermal Conductivity

0.56

W/(m.K)

-

z direction

ASTM D5470

Time to Delamination

>60

minutes

as-received

288˚C

IPC TM-650 2.4.24.1

Mechanical Properties

Copper Peel Strength after Thermal Stress

1.7
(9)

N/mm (lbs/ in)

10s @288˚C

35 μm foil

IPC TM-650 2.4.8

Flexural Strength (MD, CMD)

40.7, 40.0
(5.9, 5.8)

MPa (ksi )

25˚C±3˚C

-

ASTM D790

Tensile Strength (MD, CMD)

29.0, 25.5
(4.2, 3.7)

MPa (ksi )

23C/50RH

-

ASTM D638

Flex Modulus (MD. CMD)

3247, 3261
(471, 473)

MPa (ksi )

25C±3C

-

ASTM D790

Dimensional Stability (MD, CMD)

-0.37, -0.67

mm/m

4 hr at 105˚C

-

IPC-TM-650 2.4.39a

Physical Properties

Flammability

V-0

-

-

C48/23/50 &  C168/70

UL 94

Moisture Absorption

0.02

%

E1/105+D24/23

-

IPC TM-650 2.6.2.1

Density

2.17

g/cm³

C-24/23/50

-

ASTM D792

Specifc Heat Capacity

0.61

J/g˚K

2 hours at 105˚C

-

ASTM E2716

NASA Outgassing

0.02 / 0.00

%

 

TML/CVCM

ASTM E595

 

9.Why Choose CLTE-XT RF PCB?

CLTE-XT RF PCB board delivers exceptional high-frequency performance in an ultra-thin 0.25mm profile, combining low insertion loss, stable dielectric properties, and reliable plated through-hole integrity for demanding applications in automotive, aerospace, and telecommunications.

 

10.Order Now for ADAS and Radar Solutions!

Incorporate this high-performance Rogers CLTE-XT PCB into your next RF design for superior signal integrity and reliability in critical applications. Contact us today to discuss your project requirements and receive competitive pricing.

 

 

 

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