Leader-Tech-Inc–EA-TD046-18-24

Part #	Leader-Tech-Inc–EA-TD046-18-24
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EMI MICROWAVE ABSORBERS

MICROWAVE ABSORBER – EMI/RF ABSORBER – RAM – FLEXIBLE FERRITE

Leader Tech’s absorbing products are utilized to attenuate microwave energy from 500 MHz to 80

GHz. The unwanted electromagnetic energy is converted into a miniscule amount of heat.

Absorbers are composed of either iron-infused silicone or carbon-coated polyurethane foam.

Greatest performance is achieved when absorber thickness is comparable to a quarter of the

wavelength of the offending frequency.

ABSORBER COMPARISON CHART

Cavity

Resonance

Parameters

Tuned

Low Profile

Lossy

Reticulated

Pyramidal

Binder

Filler

Silicone

Iron

Silicone

Iron

Silicone

Iron

Polyurethane Foam

Polyurethane Foam Polyurethane Foam

Carbon

Moisture Resistant

Attenuation Level

Design Flexibility

Standard Format

Die/Kiss Cut Option

Cost

Yes

Fair

Excellent

Roll

Excellent

Very Good

Sheet

Very Good

Sheet

Good

Sheet

Yes

Good

Fair

Sheet

Yes

Good

Fair

Sheet

Yes

Lead Time

Very

Good

Excellent

FORMAT OPTIONS: SHEET – DIE CUT – KISS CUT

How do foam based absorbers work?

Lossy Foam

Reticulated

Pyramidal

Energy Source

Absorbing

foam with

resistive

carbon acts

like a resistor.

Resistive carbon

suspended by a

foam matrix.

Transmitted energy has

been reduced by 99%!

Cavity Resonances

(Spurious Harmonics, Noise Spurs, Cavity Oscilla

�ons)

Before

After

Narrowband

Wideband

Cavity

Resonance

Cavity Resonance Absorber

Totally enclosed by metallic conductors,

have a physical size that can cause them

to resonate at a discrete frequency or

mul�pl

e frequencies.

Absorber will change the Q of the

vity disrup�ng the

energy and

dampening the resonance

MICROWAVE ABSORBER – EMI/RF ABSORBER – RAM – FLEXIBLE FERRITE

NARROWBAND

Tuned

Part Number

PSA

Base

Thickness (in.)

Frequency

Tuned

– In addition to our off the shelf

Tuned absorber series (1-18 GHz), Leader

Tech can customize absorbers for discrete

frequencies (1.3 GHz, 6.5 GHz, 10.9 GHz,

etc.) by modifying the thickness and

formulation at no additional cost.

Tuned

absorbers offer the highest amount of

performance, providing an average of

20-30 dB of attenuation.

EA-TD175-0.9-XX

EA-TD165-1-XX

EA-TD128-2-XX

EA-TD095-3-XX

EA-TD078-4-XX

EA-TD081-5-XX

EA-TD070-6-XX

EA-TD062-7-XX

EA-TD053-8-XX

EA-TD072-9-XX

EA-TD065-10-XX

EA-TD060-11-XX

EA-TD056-12-XX

EA-TD051-13-XX

EA-TD047-14-XX

EA-TD045-15-XX

EA-TD043-16-XX

EA-TD041-17-XX

EA-TD046-18-XX

Yes

Silicone

0.175

0.165

0.128

0.095

0.078

0.081

0.070

0.062

0.053

0.072

0.065

0.060

0.056

0.051

0.047

0.045

0.043

0.041

0.046

0.9 GHz

1 GHz

2 GHz

3 GHz

4 GHz

5 GHz

6 GHz

7 GHz

8 GHz

9 GHz

10 GHz

11 GHz

12 GHz

13 GHz

14 GHz

15 GHz

16 GHz

17 GHz

18 GHz

Note: XX = sheet size, available in 12” x 12” and 24” x 24”

XX = 12 for 12” x 12”

XX= 24 for 24” x 24”

Part Number

PSA

Base

Thickness (in.)

Frequency

Cavity Resonance

EA-CR020-XX

EA-CR030-XX

EA-CR040-XX

EA-CR050-XX

EA-CR060-XX

EA-CR070-XX

EA-CR080-XX

EA-CR090-XX

EA-CR100-XX

EA-CR125-XX

Yes

Silicone

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

0.125

14-18 GHz

13-17 GHz

9-12 GHz

6-11 GHz

5-9 GHz

4-7 GHz

3-7 GHz

2-5 GHz

1-3 GHz

Cavity Resonance

– Off the shelf

absorber that targets specific frequency

increments when exact frequency

is unknown.

Cavity resonance

absorbers typically provide 15-25 dB of

attenuation.

Features & Properties

Magnetically loaded silicone

High Reflection Loss when mounted

to a conductive surface

Operating Temp:

-60 F to 375 F (-51 C to 191 C)

Flammability Rating : UL94 V-0

Hardness: Shore A 60-80

Halogen Free

Note: XX = sheet size, available in 12” x 12” and 24” x 24”

XX = 12 for 12” x 12”

XX= 24 for 24” x 24”

EA-CR020

Common Applications:

Antenna Cross Talk Reduction

Radar Cross Section Reduction

Instrument Housings

Aircraft Seals/Ducts

Cavity Resonance

Inside EMI Shields

Traveling, Creeping, Surface

Wave Reduction

MICROWAVE ABSORBER – EMI/RF ABSORBER – RAM – FLEXIBLE FERRITE

WIDEBAND

LOW PROFILE

Part Number

PSA

Base

Thickness (in.)

Frequency

EA-LP014

EA-LP012

EA-LP006

Yes

Silicone

0.014

0.012

0.006

500 MHz – 10 GHz

800 MHz – 4 GHz

Low Profile

– Slender, flexible absorber

that can easily be added to an array

of applications with little or no design

modification.

*Low Profile Material comes on rolls, available by the foot

EA-LP014

Features & Properties

Magnetically loaded silicone

High Power Loss when mounted to a

conductive surface

Operating Temp:

-13 F to 194 F (-25 C to 90 C)

Hardness: Shore A 75-85

Common Applications:

Inside EMI Shields

Mobile & Digital Devices

LOssy foam

Lossy Foam

– Lowest cost solution

for attenuating a wide range of

frequencies.

Part Number

PSA

Base

Thickness (in.)

Frequency

EA-LF125-XX

EA-LF250-XX

EA-LF500-XX

Yes

Polyurethane Foam

0.125

0.250

0.500

1-18 GHz

Note: XX = sheet size, available in 12” x 12” and 24” x 24”

XX = 12 for 12” x 12”

XX= 24 for 24” x 24”

*Thicker material available by request.

EA-LF125

Features & Properties

Dielectrically loaded polyurethane foam

High insertion loss when mounted to a

nonconductive surface

Operating Temp:

-60 F to 250 F (-51 C to 121 C)

Flammability Rating: UL94-HF1 available

Halogen Free

Common Applications:

Antenna Isolation

Sidelobe/Backlobe Reduction

EMI Reduction

Radar Cross Section Reduction

Test Boxes

MICROWAVE ABSORBER – EMI/RF ABSORBER – RAM – FLEXIBLE FERRITE

WIDEBAND

RETICULATED

Reticulated Foam

– Open-cell, light

weight, low cost solution which can

be used as an air filter as well as an

EMI absorber.

Part Number

PSA

Base

Thickness (in.)

Frequency

EA-RF375-XX

EA-RF500-XX

EA-RF750-XX

EA-RF1000-XX

EA-RF1250-XX

Yes

Polyurethane Foam

0.375

0.500

0.750

1.000

1.250

1-18 GHz

Note: XX = sheet size, available in 12” x 12” and 24” x 24”

XX = 12 for 12” x 12”

XX= 24 for 24” x 24”

EA-RF375

Features & Properties

Dielectrically loaded polyurethane foam

High reflection loss when mounted to a

conductive surface

Operating Temp:

-60 F to 250 F (-51 C to 121 C)

Flammability Rating: UL94-HF1 available

Halogen Free

Common Applications:

Antenna Isolation

Sidelobe/Backlobe Reduction

EMI Reduction

Radar Cross Section Reduction

Test Boxes

PYRAMIDAL

Pyramidal Foam

– Gradual transition

of impedance through the cones

provides excellent reflection loss,

specifically when applied to the walls

of anechoic chambers.

Part Number

PSA

Base

Thickness (in.)

Frequency

EA-PF1500-XX

EA-PF3000-XX

Yes

Polyurethane Foam

1.500

3.000

1-18 GHz

Note: XX = sheet size, available in 12” x 12” and 24” x 24”

XX = 12 for 12” x 12”

XX= 24 for 24” x 24”

EA-PF1500

Features & Properties

Dielectrically loaded polyurethane foam

High reflection loss when mounted to a

conductive surface

Operating Temp:

-60 F to 250 F (-51 C to 121 C)

Flammability Rating: UL94-HF1 available

Halogen Free

Common Applications:

Antenna Isolation

Sidelobe/Backlobe Reduction

EMI Reduction

Radar Cross Section Reduction

Test Boxes

12420 Race Track Road Tampa, Florida 33626

www.leadertechinc.com • sales@leadertechinc.com

866.TECH.EMI (866.832.4364) • Local: 813-855-6921 • Fax: (813) 855-3291

Products

and Capabilities

Thermal

Gap Fillers

Conductive

Elastomers

Enclosure

Shielding

FerriShield

Ferrites

Board Level

Shielding

Visit Leade

chInc.com to download additional product catalogs

Leader-Tech-Inc–EA-TD046-18-24

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