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DiClad 870 High Frequency PCB 2-layer 5mil

Shipped: 8th-MAR-2024

1. Introduciton of DiClad 870

Rogers DiClad 870 laminates are woven fiberglass reinforced, PTFE-based composites that offer lower dielectric constant for use as printed circuit board substrates. By using fewer plies of woven fiberglass and a higher ratio of PTFE content, the DiClad 870 laminates offer lower dielectric constants (Dk) and dissipation factors at a similar thickness to other laminates in the DiClad series. The woven fiberglass reinforcement in DiClad 870 provides greater dimensional stability than nonwoven fiberglass reinforced PTFE based laminates of similar dielectric constants. The coated fiberglass plies in DiClad 870 materials are aligned in the same direction.

2. Features

- DK of 2.33 at 10 GHz and 1 MHz, 50% RH
- Dissipation factor of 0.0013 at 10 GHz, 0.0009 at 1MHz, 50% RH
- Moisture Absorption 0.02%
- CTE in X-axis of 17 ppm/°C, Y-axis of 29ppm/°C and Z-axix of 217ppm/°C
- Copper Peel Strength of 14 lbs/in
- UL 94-V0 Flammability
- NASA outgassing: Total mass loss of 0.01%, Collected Volatiles of 0.01%, Water vapor recovered of 0.

3. Benefits

- Extremely Low Loss Tangent
- Excellent Dimensional Stability
- Product Performance Uniformity
- Electrical Properties are Highly Uniform Across Frequency
- Consistent Mechanical Performance
- Excellent Chemical Resistance
- Lowest moisture absorption among PTFE based composites
- Stable Dk over a wide frequency range
- Low Dk supports wider line widths for lower insertion loss

4. PCB Stackup: 2-layer rigid PCB

Copper_layer_1 - 35 μm
DiClad 870 - 0.127 mm (5mil)
Copper_layer_2 - 35 μm

5. PCB Construction details:

- Board dimensions: 63.44mm x 49.5 mm=1PCS, +/- 0.15mm
- Minimum Trace/Space: 4/5 mils
- Minimum Hole Size: 0.20mm
- No Blind vias.
- Finished board thickness: 0.2mm
- Finished Cu weight: 1oz (1.4 mils) outer layers
- Via plating thickness: 20 μm
- Surface finish: ENIG
- Top Silkscreen: No
- Bottom Silkscreen: No
- Top Solder Mask: No
- Bottom Solder Mask: No
- 100% Electrical test used prior to shipment

6. PCB Statistics:

Components: 4
Total Pads: 8
Thru Hole Pads: 5
Top SMT Pads: 3
Bottom SMT Pads: 0
Vias: 10
Nets: 1

7. Type of artwork supplied: Gerber RS-274-X

8. Accepted standard: IPC-Class-2

9. Availability: worldwide

10. Some Typical Applications:

- Radar Feed Networks
- Commercial Phased Array Networks
- Low Loss Base Station Antennas
- Guidance Systems
- Digital Radio Antennas
- Filters, Couplers, LNAs

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