Microwave Absorber

Board Level Shield

™

EMI-SPEC-MICRO-ABSORBLS-0706

Any information furnished by Laird Technologies and its agents is believed to be accurate and reliable. Responsibility for the use and application of Laird Technologies materials rests with the end

user since Laird Technologies and its agents cannot be aware of all potential uses. Laird Technologies makes no warranties as to the fitness, merchantability, or suitability of any Laird Technologies

materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind. All Laird Technologies products are sold pursuant

to the Laird Technologies domestic terms and conditions of sale in effect from time to time, a copy of which will be furnished upon request.

Microwave Absorbers

Q-Zorb RFSW surface wave absorbers are thin, magnetically loaded elastomeric sheets

designed to provide attenuation at high angles of incidence for surface wave attenuation.

They are nominally manufactured in the thickness range of 0.010” to 0.125” (0.4mm to

3.2mm).

The elastomeric-based absorbers are available in a variety of choices. All of the parts

utilized in our ABLS product offering utilize our silicone elastomer which has a wide

Each of these products offers a UL-V0 rating and is RoHS compliant.

In the ABLS product offering, the absorber material is acting to reduce internal resonances

which often occur at higher frequencies. Although the data listed below shows electrical

performance from 2-18 GHz, the material offers shielding effectiveness from 1-40 GHz.

Part

Number

Product

Category

Elastomer

Type

Thickness

in (mm)

Frequency (GHz)

Range

2960

RFSW

Silicone

0.010” (0.3)

12-18

2234

RFSW

Silicone

0.020” (0.5)

12-18

2236

RFSW

Silicone

0.030” (0.8)

12-18

2238

RFSW

Silicone

0.040” (1.0)

8-12

2296

RFSW

Silicone

0.050” (1.3)

8-12

2240

RFSW

Silicone

0.060”(1.5)

8-12

2257

RFSW

Silicone

0.080” (2.0)

4-8

2272

RFSW

Silicone

0.100” (2.5)

2-4

2242

RFSW

Silicone

0.125” (3.2)

2-4

Material Options

Typical Material Performance

Standard Two-Piece Board Level Shields

Part

Number

Surface

Area

Overall

Dimension

Overall

Frame

Tape

Width

Tape

Pitch

Parts

Per Reel

Weight

(FR)

Weight

(CY)

BMIS-201-F

.538 x .476

(13.66 x 12.10)

.100

(2.54)

24 mm

20 mm

1000

0.3 g

0.2

BMIS-202-F

.650 x .650

(16.50 x16.50)

.142

(3.60)

32 mm

24 mm

700

0.5 g

0.4

BMIS-203-F

1.032 x 1.032

(26.21 x 26.21)

.200

(5.08)

44 mm

32 mm

300

1.0 g

0.8

BMIS-204-F

1.260 x 1.260

(32.00 x 32.00)

.236

(6.00)

44 mm

36 mm

225

1.6 g

1.1

BMIS-205-F

1.500 x 1.000

(38.10 x 25.40)

.236

(6.00)

56 mm

44 mm

250

1.6 g

1.1

BMIS-206-F

1.450 x 1.326

(36.83 x 33.68)

.200

(5.08)

56 mm

40 mm

300

1.5 g

1.3

BMIS-209-F

1.747 x 1.747

(44.37 x 44.37)

.384

(9.75)

56 mm

56 mm

120

3.2 g

3.1

BMIS-210-F

1.732 x 1.201

(44.02 x 30.50)

.118

(3.00)

56 mm

40 mm

450

1.0 g

2.6

Standard Surface Mount Shields Two-Piece

Two-piece board level shields offer users the flexibility to inspect or repair shielded

components without having to risk board damage by removing the entire shield or incur

any tooling costs. Covers snap on and off with ease, which makes repair of the component

under the shield quicker and easier and reduces board re-work. Two-piece shields are

available unassembled*, and are designed to survive drop, shock and no-rattle tests.

*Pre-assembly is an option. Consult Sales.

Typical ReflectionLossPropertiesofQ-Zorb

-30

-25

-20

-15

-10

-5

0

2

4

6

8

10

12

14

16

18

Frequency (GHz)

2234 2238 2240 2016 2960

*Please consult sales and order the standard shield part number (BMIS-XXX-X) and note

the addition of the absorber part number (XXXX).