(1/1)
Conformity to RoHS Directive
Isolators
For UMTS
QTBMC Series QTBMC4-1950
SHAPES AND DIMENSIONS
TERMINAL FUNCTIONS
Type QTBMC4-1950A QTBMC4-1950B
Direction A(CW)
Side view
Liquid crystal polymer
B(CCW)
OUT
GND
GND
GND
GND
IN
GND electric potential
1
2
3
4
5
6
IN
(
)
Steel Plating:Sn
GND
GND
GND
GND
OUT
(
)
Steel Plating:Sn
2.5+–00..13
0.25 0.1
Top view
Bottom view
3
4
3
4
5
6
2
1
2
1
5
6
0.16
0.25 0.1
2.9
(
)
Steel Plating:Sn
Side view
Terminal
Coplanarity: 0.1max.
Tolerance: 0.2
Dimensions in mm
3+–00..12
Liquid crystal polymer
RECOMMENDED PCB PATTERN
LAND
ELECTRICAL CHARACTERISTICS
Frequency range
Temperature range
Insertion loss
Isolation
(MHz)
(°C)
(dB)
(dB)
1920 to 1980
+20 to +30
0.50max.
14min.
1920 to 1980
–35 to +85
0.60max.
12min.
1.5max.
1.5max.
50
13
15
2.5max.
0.6max.
Isolator outline
GND
In
(Arb. Unit) 1.3max.
VSWR
Out (Arb. Unit) 1.5max.
Impedance
Attenuation
(Ω)
(dB)
(dB)
50
13
15
2f0
3f0
Connect to 50Ω stripline
with I/O land
Handling power capability (W)
2.5max.
0.6max.
Reflection power
(W)
I/O
I/O
Dimensions L× W× T
(mm)
3.0+0.2/–0.1× 2.5+0.3/–0.1× 1.3+0/–0.2
0.8
Terminal
0.35min.
2.3
Dimensions in mm
SOLDER RESIST
3.8
0.75
2.3
Solder resist
Terminal
Dimensions in mm
0.8
2.2
• 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.
• All specifications are subject to change without notice.
001-02 / 20070722 / e771_qtbmc4_1950.fm
