TDK HHM Series HHM1521 Specifications

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001-03 / 20080106 / e751_hhm1521.fm

• All specifications are subject to change without notice.

Multilayer Chip Baluns

For Bluetooth & 2.4GHz W-LAN

HHM Series  HHM1521

SHAPES AND DIMENSIONS

0.95

±0.1

1.25

±

0.15

0.65

±0.2

0.3

±0.2

0.2

±0.2 0.35±0.2

2.0

±0.15

6

5

4

1

2

3

Dimensions in mm

0.25

+

0.1

–0.2

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

Ω

Balanced

output

200

Ω

RECOMMENDED PC BOARD PATTERNS

0.2

0.3

0.3

0.8

0.6

0.7

ø0.3 Through-hole

This width is 50

Ω.

Micro-strip line for 0.4mm thick

glass-epoxy substrate.

Dimensions in mm

6

5

4

1

2

3

0.8

ELECTRICAL CHARACTERISTICS

Unbalanced impedance

50

Ω

Balanced impedance

200

Ω

Frequency range

2400 to 2500MHz

Unbalanced port return loss

10dB min.

Phase imbalance at balanced port

180±10deg.

Amplitude imbalance at balanced port

0±2.0dB

Insertion loss

1.0dB max.

Temperature range

Operating

–40 to +85°C

Storage

–40 to +85°C

Packaging style and quantities

2000pieces/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.