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©2008 by RF Monolithics, Inc.

SF2109D - 9/18/08

8-Terminal Ceramic Surface-Mount Case

3.8 X 3.8 mm Nominal Footprint

SM3838-8 Case

TOP VIEW

BOTTOM VIEW

0.066

0.055 TYP.

(1.68)

(1.40)

PCB Footprint

Case Dimensions

Dimension

mm

Inches

Min

Nom

Max

Min

Nom

Max

A

3.6

3.8

4.0

0.142

0.150

0.157

B

3.6

3.8

4.0

0.142

0.150

0.157

C

1.05

1.20

1.35

0.041

0.047

0.053

D

0.95

1.10

1.25

0.037

0.043

0.049

E

0.90

1.00

1.10

0.035

0.040

0.043

F

0.50

0.60

0.70

0.020

0.024

0.028

G

2.39

2.54

2.69

0.090

0.100

0.110

H

1.40

1.75

2.05

0.055

0.069

0.080

Electrical Connections

Connection

Terminals

Port 1

Differential Input

1, 2

Port 2

Differential Output

5, 6

Ground

All Others

Single Ended Operation

Return is Ground

Differential Operation

Return is Hot

Dot Indicates Pin 1

Materials

Solder Pad Ter-

mination

Au plating 30 - 60 uInches (76.2-152 uM) over 80-200

uInches (203-508 uM) Ni.

Lid

Fe-Ni-Co Alloy Electroless Nickel Plate (8-11% Phospho-

rus) 100-200 uInches Thick

Body

Pb Free

A

1

2

3

B

7

6

5

4

C

H 7

6

5

4

E

F

G

1

2

3

8

8

D