Telecommunications

Designed to ensure flexibility and product functionality.

Enabling electronics and next generation telecommunication systems

Flexibility is critical in today’s world. Specifically designed to ensure flexibility and product functionality, our POREX® electronics substrates exhibit excellent dielectric properties with a dielectric constant as low as 1.4. 

Our POREX® Virtek™ PTFE films are microporous polytetrafluoroethylene materials that deliver:

  • Low dielectric constant and high temperature resistance ideal for antenna systems, with the ability to withstand solder reflow at 260 °C
  • Robust material that does not collapse under pressure
  • Surface structure allows printing or plating of metals.
  • Consistent airflow performance even after being handled in the assembly process
Tele - Low dielectric material

Low Dielectric Material

Low energy absorption for high-frequency applications

Environmental Protection Vents

Environmental Protection Vents

Protect your outdoor electronics with environmental protection vents

Low Dielectric Material

low dielectric material detail

Lower energy absorption for high-frequency applications

High-frequency applications, such as antennae systems, require low energy absorption. Trusted by manufacturers around the world, our low dielectric materials:

  • Ensure purity and manufacturability–POREX Virtek™ PTFE is pure PTFE and does not require a backing or support scrim like expanded PTFE.  This allows for assembly via heat or vibrational welding.
  • Deliver low dielectric constants–Offer constants as low as 1.4.
  • Surface structure allows printing or plating of metals
  • Improve device effectiveness–Material can be made into two and three-dimensions shapes from a variety of substrates, plus the ability to trap functional additives or catalysts within the pore structure.

 

Example of POREX® Porous PTFE Dielectric Properties
Gap Z0 K Tan 𝛿 Qu Qt F,GHz dB Unc. Qt Unc. F,kHz Unc.dB sd/fit #pts
15 38.5 1.46 0.0012 231.8 231.1 0.81420 50.79 0.1452 0.5 0.002 0.00913 101s
35 38.5 1.46 0.0008 393.9 392.8 2.44068 50.76 0.5300 1.9 0.003 0.02036 101s
40 38.5 1.46 0.0007 443.6 442.2 3.25346 50.25 0.4400 1.6 0.002 0.01461 101s
55 38.5 1.46 0.0006 582.3 580.6 5.69387 50.80 0.7073 2.6 0.003 0.01801 101s
64 38.5 1.46 0.0006 651.4 649.5 8.13362 51.02 1.2086 5.1 0.005 0.02725 101s
75 38.5 1.46 0.0004 770.1 767.9 10.57427 50.74 1.0921 4.2 0.003 0.02040 101s
90 38.5 1.46 0.0005 793.1 790.6 13.8262 50.26 1.5756 7.7 0.005 0.02973 101s
Example based on PM 2010. Pore size: 15-25µ, porosity: 50-60%

 

Related Resources:

pdf download Datasheet: PTFE Fact Sheet

Environmental Protection Vents

Environmental Protection Vents

Protect your outdoor electronics with environmental protection vents

POREX® IP Rated enclosure vents for outdoor electronics provide reliable pressure equalization and protection from rough outdoor conditions for applications such as heavy-duty machinery, transportation equipment, security systems and telecommunications systems.

Specifically designed for outdoor applications, our enclosure vents:

  • Equalize pressure–Air-permeable structure reduces pressure build-up and allows heat to escape electronic enclosures, protecting enclosure seals from premature failure.
  • Protect against contaminants–POREX Virtek™ materials repel dust, water, sweat, oils and other liquids from entering the enclosure.
  • Assemble easily– Sintered structure allows material to be handled and welded without cumbersome assembly instructions.

 

 

STOCK PRODUCT OFFERING - ADHESIVE DISCS
Dimensions Material Series
OD/ID (mm)* PMV10L PMV15 PMV20 PMV30
7.0/3.0 (N) PMV10LN PMV15N PMV20N PMV30N
10.0/7.0 (I) PMV10LI PMV15I PMV20I PMV30I
12.7/7.1 (W) PMV10LW PMV15W PMV20W PMV30W
20.0/13.0 (C) PMV10LC PMV15C PMV20C PMV30C

 

Dimensions Material Series
OD/ID (mm)* PMV15 Feature
12.7/7.1 (W) PMV15WH High temperature adhesive
12.7/7.1 (W) PMV15TWH Oleophobic with high temp adhesive
*1000 discs/roll
N, I, W & C are size codes.
Many other standard and custom sizes availble. Contact Porex.

 

POREX® Virtek™ PTFE Membrane Application Materials — Typical Properties
Application Material IP Rating † WEP mbar Airflow l/hr/cm² @70mbar Filtration Efficiency** >99.99% Thickness mm Max Operating Temp °C UL-94/746C* Salt Fog
PMV10 64,67 270 125 0.5 µ 0.13 260°C V-0/f2 No pen.
PMV10L*** 64,67 270 85 0.5 µ 0.3 100°C - No pen.
PMV15 64,67 380 70 0.4 µ 0.18 260°C V-0/f2 No pen.
‡PMV15T 64,67 380 70 0.4 µ 0.18 260°C - No pen.
PMV20 64,65,68 520 34 0.1 µ 0.25 260°C V-0/f2 No pen.
PMV25 65,67,68 750 15 0.2 µ 0.1 260°C V-0/f2 No pen.
PMV30 65,66,67,68 1000 4.5 0.1 µ 0.25 260°C V-0/f2 No pen.
WEP = Water Entry Pressure
RoHS, WEEE, REACH Compliant
** According to IEST RP-CC007.2 2009
***Laminated polyolefin mesh backing
† IEC std. 60529, IP 68 is a user defined test; will pass condition dependent
‡ Oleophobic Grade 8, AATCC TM 118
Properties are typical and not meant for specifications.
Properties for membrane only, selected options and adhesives may affect properties.
Testing results available upon request

 

POREX® Virtek™ PTFE Vent Plugs — Typical Properties
Part # Diameter mm Thickness mm WEP mbar IP Rating † Vent Airflow l/hr/cm² @70mbar Max Operating Temp °C UL-94 Rating
PD103032 3.2 3 450 64,67,68 1 260°C 5VA, f1
Plugs meet UL-94 5VA and F1 rating.
Assembly methods include: press fit, over-moulding, compression seal, or flange welding.

 

Adhesive Vent Available Sizes
Available Sizes
OD (in mm) ID (in mm)
7 3
10 7
10.2 6.5
11 7
12.7 7.1
13 10
14.8 11
14.8 7
15.8 9
16 11
18 13
18.6 10.6
19.1 11.5
20 13
25.4 19
50 30
   

*Highlighted rows indicate stock items.

Custom sizes available upon request

 

Related Resources:

pdf download Datasheet: POREX Virtek™ IP Rated Protection Vents

pdf download Datasheet: PTFE Fact Sheet

pdf download Datasheet: Porex PTFE Ingress Protection Test Report

video Demonstration video: Hydrophobicity and handling properties: POREX Virtek™ PTFE vs. expanded PTFE

video Demonstration video: Durability comparison of POREX Virtek™ PTFE vs. expanded PTFE

video Demonstration video: Dangers of not venting a sealed enclosure

video Demonstration video: Keep electronics dry and protected with  POREX Virtek™ PTFE vents