3650 series - PU foam based flat absorbers

These absorbers can be used at higher frequencies than traditional shielding and can also be used with other EMI/RFI shields to extend frequency range

These absorbers can be used at higher frequencies than traditional shielding and can also be used with other EMI/RFI shields to extend frequency range. The microwave absorbers can be installed easily with (PSA) pressure sensitive adhesive, often directly onto high-frequency board-level components to absorb unwanted radiated and surface wave EMI/RFI and meet FCC requirements without shielding.

PU foam based flat absorbers has the advantages of light quality and good performance, which can be applied for the site near the antenna, and it can be used to reduce the side-lobe, improve the front-to-back ratio, absorb the clutter, eliminate the interference, as well provide the camouflage and concealment of the military facilities.

3650-50 (50 mm height PU foam based flat absorber)
3650-50 (50 mm height PU foam based flat absorber)

Characteristics

  • Such absorbers have a flat appearance, with black color (it can be selected as request), it is clean and soft.
  • Oxygen index ≥29% (GB/T2406-93), which belongs to flame retardant B2 level (GB8624-1997)
  • Good environmental performance, all raw materials can meet the environmental requirements, no volatile, no smell and non-toxic.
  • Installation method: Direct adhesive paste and the absorbers with self-adhesive tape can be also offered.
  • Working temperature: -60oC~90oC relative humidity: 55%±15% Frequency range: 1GHz~18GHz

Schematic diagram of PU foam based flat absorbers

Foam based flat absorbers technical drawing
Foam based flat absorbers technical drawing

Product specification and part numbers

Part number * Unit dimension
B x B x H (mm *mm * mm)
Standard weight (Kg/m2)
3650-5-CF 600 x 600 x 5 0.3
3650-10-CF 600 x 600 x 10 0.5
3650-20-CF 600 x 600 x 20 0.6
3650-50-CF 600 x 600 x 50 1.5
3650-100-CF 600 x 600 x 100 3
3650-40-ML 550 x 550 x 40 1.5

* CF refers to "common flat absorber"
* ML refers to "Multi layer broadband flat absorber"

Please note : Other sizes and thicknesses on request


Reflection loss / Shielding performance

These values are measured under laboratory conditions.
In your situation results may differ, please read our Guarantee
Part number Reflection loss under vertical incidence (-db @ GHz)
1 3 6 10 18 40
3650-5-CF       5 10 15
3650-10-CF     10 15 15 18
3650-20-CF   10 15 17 17 20
3650-50-CF 10 18 18 19 19 22
3650-100-CF 15 19 19 20 20 22
3650-40-ML 18 20 20 20 20 23

Please note:

  1. For the data above 1GHz, it is obtained by far-field RCS test method (GJB2038A-2011)
  2. The performance data listed in the above table is the guaranteed data, and the measured data would be equal to or better than the guaranteed data.
  3. The bold part number is a stock item and can be delivered immediately
  4. Certification: CE ROHS

Example drawing of an multilayer (3650-40-ML) PU foam based flat absorbers
Example drawing of an multilayer (3650-40-ML) PU foam based flat absorbers
3650 - PU foam based flat absorbers | Holland Shielding Systems BV 3650 Holland Shielding Systems BV 3650 - PU foam based flat absorbers | Holland Shielding Systems BV Holland Shielding Systems B.V. Holland Shielding Systems B.V.
Rated 4.9/5 based on 9 customer reviews
In stock
48.00 48.00 48.00 EUR
48.00 48.00 48.00 Retail EA EUR
1 3650 - PU foam based flat absorbers | Holland Shielding Systems BV 3650 Holland Shielding Systems BV
Product description: 3650 - PU foam based flat absorbers | EMI/RFI shielding product & solutions, common for in-stock products. Worldwide support for industries.

Holland Shielding Systems BV

Holland Shielding Systems B.V. Holland Shielding Systems BV Holland Shielding Systems BV

Worldwide leading manufacturer of EMC (electromagnetic compatibility), EMI (electromagnetic interference) and RFI(radio frequency interference) shielding solutions. Our EMC/EMI specialists will work together with you from the design phase through final production.

Open: Monday-Friday 7am-12pm

Phone: 0031782049000

Fax: 0031782049008

Paypal, credit card, iDEAL, Cash, Wire transfer From €48
Jacobus Lipsweg 124, 3316BP, Dordrecht, ZH, NL
Rated 4.9/5 based on 346 customer reviews

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Part number
PU foam based flat absorbers with a height of 50 mm can be delivered from stock.
Select an option:
CF : Common flat absorber (Single layer)
ML : Multi layer broadband flat absorber
* Note: The red blocks are required