TDK HHM Series - Manual

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001-01 / 20080106 / e751_hhm1775b1.fm
• All specifications are subject to change without notice.
Multilayer Chip Baluns
For UWB
HHM Series HHM1775B1
SHAPES AND DIMENSIONS
RECOMMENDED PC BOARD PATTERNS
Line width be designed to match 50 Ω characteristic impedance depending on
PCB material and thickness.
ELECTRICAL CHARACTERISTICS
Conformity to RoHS Directive
0.6 ±0.1
0.8
±
0.1
0.3 ±0.1
0.15
±
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
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
Unbalanced impedance 50 Ω
Balanced impedance 100 Ω
Frequency range 3100 to 4900MHz
Unbalanced port return loss 10dB min.
Phase imbalance at balanced port 180±15deg.
Amplitude imbalance at balanced port 0±1.5dB
Insertion loss 1.2dB max.
Temperature range
Operating –40 to +85°C
Storage –40 to +85°C
Packaging style and quantities 4000pieces/reel
• 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.