RF Devices
Type :
Balun
Part No :
EHF
_ _ _ _ _ _ _
Features
Ultra-miniaturized, thin type (1.6×0.8×t 0.65)
Multiple frequency ranges available (300 MHz to 4000 MHz)
Balanced / Unbalanced Converter
Impedance matching (50Ω/50Ω, 50Ω/100Ω, 50Ω/200Ω)
Equivalent Circuit
Recommended Applications
Digital portable telephone
Dual mode portable telephone
PHS
Mobile communication system
Typical Characteristics
Part No.
Items
Frequency (MHz)
Insertion Loss (dB)
Difference of Phase (deg)
FD
1622
824 to
894
1.0
max.
FD
1620
880 to
960
2.0
max.
FD
1629
1700 to
2000
1.0
max.
FD
1617
380 to
430
1.0
max.
FD
1618
880 to
960
1.0
max.
FD
1619
1700 to
2000
0.8
max.
1BD
0380
380 to
430
2.0
max.
1BD
0800
824 to
894
2.0
max.
1BG
0836
824 to
894
0.8
max.
1BG
1800
2BD
1800
2BD
1900
2BD
2060
1700 to 1700 to 1800 to 1920 to
1910
1910
2000
2170
0.8
max.
1.0
max.
1.0
max.
1.0
max.
180±15 180±15 180±10 180±10 180±15 180±15 180±15 180±15 180±10 180±10 180±15 180±15 180±15
50 / 200 50 / 200 50 / 50 50 / 200
Fig.1
※2
Fig.1
※2
Fig.2
※2
Fig.1
※4
50 / 50
Fig.2
※4
50 / 50
Fig.2
※4
50 / 50
Fig.3
※5
50 / 50 50 / 200 50 / 200 50 / 50
Fig.3
※5
Fig.3
※5
Fig.3
※5
Fig.3
※3
50 / 50
Fig.3
※3
50 / 50
Fig.3
※3
Impedance (Ω)
Circuit Diagram
Dimension No.
Part No.
Items
Frequency (MHz)
Isolation Loss (dB)
Difference of Phase (deg)
2BD
2450
2400 to
2500
1.0
max.
2BE
0920
880 to
960
1.0
max.
2BE
1600
2BE
1800
2BE
1900
2BE
2060
2BE
2450
2BE
3635
2BG
1800
2BG
2060
2BG
2450
4BD
2450
4BE
5250
1520 to 1700 to
1720
1910
1.0
max.
1.0
max.
1800 to 1920 to 2400 to 3400 to 1700 to
2000
2170
2500
4000
1910
1.0
max.
1.0
max.
1.0
max.
1.0
max.
1.0
max.
1920 to 2400 to 2400 to 5150 to
2170
2500
2500
5350
1.0
max.
1.0
max.
1.0
max.
1.2
max.
180±15 180±15 180±15 180±15 180±15 180±15 180±15 180±20 180±15 180±15 180±15 180±15 180±15
50 / 50 50 / 100 50 / 100 50 / 100 50 / 100 50 / 100 50 / 100 50 / 100 50 / 200
Fig.3
※3
Fig.3
※3
Fig.3
※3
Fig.3
※3
Fig.3
※3
Fig.3
※3
Fig.3
※3
Fig.3
※3
Fig.3
※3
50 /200 50 / 200 50 / 50 50 / 100
Fig.3
※3
Fig.3
※3
Fig.3
※1
Fig.3
※1
Impedance (Ω)
Circuit Diagram
Dimension No.
Note: Emits EHF.
Dimensions in mm
（not
to scale）
※
1
※
2
※
3
※
4
1.6±0.1
1.05±0.1
※
5
0.8±0.1
0.65±0.1
1.6±0.1
1.6±0.2
0.65±0.1
1.6±0.2
1.25±0.1
0.95±0.1
1.6±0.2
0.65±0.1
2.0±0.1
3.2±0.2
3.2±0.1
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Shoud a safety concern arise regarding this product, please be sure to contact us immediately.
Mar.2005
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