TDK WiMAX HHM Series HHM1715E1 Specifications Download Page 1

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001-02 / 20080106 / e751_hhm1715e1.fm

• All specifications are subject to change without notice.

Multilayer Chip Baluns
For WiMAX

HHM Series  HHM1715E1

SHAPES AND DIMENSIONS

0.6

±

0.1

0.8

±

0.1

0.3

±

0.1

0.1

±

0.1 0.25

±

0.1

1.6

±

0.1

6

5

4

1

2

3

Dimensions in mm

0.55

±

0.1

1

Unbalanced port

2

GND or DC feed+ RF GND

3

Balanced port

4

Balanced port

5

GND

6

N.C.

Terminal functions

CIRCUIT DIAGRAM

1

2

3

5

6

4

Unbalanced
input

50

Balanced
output

100

RECOMMENDED PC BOARD PATTERNS

0.25

0.25

0.3

0.5

0.5

0.85

0.2

0.3

0.95

0.15

ø0.3 Through-hole

Unbal port

Bal port

Dimensions in mm

Land

Line width be designed to match 50

 characteristic impedance depending on 

PCB material and thickness.

ELECTRICAL CHARACTERISTICS

Unbalanced impedance

50

Balanced impedance

100

Frequency range

00 to 

33

3900MHz

Unbalanced port return loss

10dB min.

Phase imbalance at balanced port

180±15deg

Amplitude imbalance at balanced port

0±1.2dB

Insertion loss

1.0dB max.

Power capacity

0.5W max.

Temperature range

Operating

–40 to +85°C

Storage

–40 to +85°C

Packaging style and quantities

4000pieces/reel

Conformity to RoHS Directive 

• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and 

specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.

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