113
Interface Coaxial Switches
MS-145 Series
■Features
01. Frequency range
Can be used from DC to 2.5 GHz and with GSM, PCS, cdma-
One,W-CDMA, etc.
02. Low profile
Low protrusion of only 6mm above the mounting surface
(receptacle).
03. Durability
High durability(mating/unmating) of 10 000 cycles.
04. Self alignment of mating parts
Inducement to floating is ±0.5mm.
05. Light weight
Weight is only 0.18g.
06. Small board surface solder area
The area is 7 ∞4.6mm(excluding leads).
07. Automatic mounting
Receptacle designed for placement on board with automated
equipment.
08. Solder wicking
Receptacle terminations are designed to prevent solder wicking
into the critical contact areas.
09. Plugs
Wide variety of mating heights are available.
10. Adaptors
Different adaptors are available.
■Overview and applications
Designed primarily as interface coaxial switch for
a mobile phones, they are also used in variety of
other applications requiring redirecting of signals
when mating with corresponding plug.
The mating action redirects the signals from the
receptacle side to the plug side.
Receptacle
MS-145-C(LP)-1 MS-145-C(LP)-A
MS-145-HRMJ MS-145-HRMP
■Materials
■Applications
Mobile Phone antenna switching
Checks of microwave boards, etc.
Part Material Color/Finish UL standard
Outer shell Phosphor bronze Gold plating ---------------
Insulator Polyamide resin UL94HB
---------------
Common contact Beryllium copper ---------------
---------------
---------------
Board circuit side (N.C.) contact Beryllium copper ---------------
---------------
Mounting area : Solder over Nickel plating
Contact area : Gold over Nickel plating
Others : Nickel Plating
Mounting area
: Solder over Nickel plating
Contact area : Gold over Nickel plating
Others : Nickel Plating
---------------
Plug
Temperature : -55
ç
/5 to 35
ç
/to 85
ç
/5 to 35
ç
Time : -30 min /Within 5 min /30 min /Within 5 min
100 cycles
Frequency 10 to 50 Hz, amplitude 1.5 mm,
at 2 h, for 3 directions
No momentary disconnections of 10
µ
s or more
Contact resistance Center: 100 m
ø
or less
Outside: 75 m
ø
or less
No momentary disconnections of 10
µ
s or more
Contact resistance Center: 100 m
ø
or less
Outside: 75 m
ø
or less 490 m/s
2
, half-sine waveform, at 3 times for 3 directions
6. Thermal shock
114
Specification
Operating temperature range -30
ç
to +85
ç
Power 2 W (4W : at 1/8 duty ratio)
Frequency range DC to 2.5 GHz
0.3 dB or less (DC to 1 GHz)
Insertion loss 0.4 dB or less (1 GHz to 2 GHz)
0.6 dB or less (2 GHz to 2.5 GHz)
20 dB or greater (DC to 1 GHz)
Isolation 15 dB or greater (1 GHz to 2 GHz)
12 dB or greater (2 GHz to 2.5 GHz)
V.S.W.R. 1.3 or less (DC to 2 GHz)
1.5 or less (2 GHz to 2.5 GHz)
■Performance
■Typical performance
1.00
1.20
1 2 2.5
1.40
1.60
0
0.2
0.4
0.6
10
15
20
40
dB
N.O.
N.O.
Isolation
Insertion loss
VSWR
N.C.
N.O.
N.C.
Frequercy GHZ
DC
Item
Requirement Test
Condition
1. Insulation resistance 1 G
ø
or more Measured at 100 V DC
2. Voltage proof No arcing or insulation breakdown 100 V AC applied for one minute
3. Contact resistance Center: 75 m
ø
or less Measured at 100 mA or less
Outside: 50 m
ø
or less
4. Vibration
5. Shock
Contact resistance Center: 100 m
ø
or less
Outside: 75 m
ø
or less
Insulation resistance 10 M
ø
or more
Contact resistance Center: 100 m
ø
or less
7. Corrosion salt spray Outside: 75 m
ø
or less Exposed in 5
%
salt water spray for 48 h, at 35
ç
No excessive corrosion
Contact resistance Center: 100 m
ø
or less 10000 Mating/Unmating cycles
Outside: 75 m
ø
or less
8. Durability
(Mating/Unmating)
115
BRecommended solder board
mounting pattern
■Receptacle dimensions
Parts No : MS-145(06)
Package condition (1,000 pieces per reel)
All dimensions in mm.
BTape and reel dimensions
(1,000 pieces per reel)
BCircuit configuration
1.4
0.9
2.4
7
6
Ø5.06
2-0.2 2-0.15
0.5
Ø3
Not mated with plug
(Normally closed)
Mated with plug
(Normally open)
2-R2
Plug MS-145
G
A
C
G
G
A
C
G
G
A
C
G
G
B
G
B
G
B
G
1
4 5.4
6.4 4.62.3
63.65
12
4
1.75
Ø13:
Center
Opening
16.42
2
Ø1.5 Unwinding direction
Unwinding direction
7.5
16
7.5
Ø380
Ø80
Ø4.15
12.7
8.64
4-Ø2.6
1/4-36UNS-2A
12.78.64
14.03
1.7
23.13
7.4
Ø4.3
1/4-36UNS-2B
Ø4.9
8HEX
19.87
11.37 7
13.7
Ø1.8
10.2
Ø4.15
1.7
Ø5.55
8.2
13.15
15.5
7
13.7
Ø1.8
Ø4.15
Ø5.55
10.2
15.5
5.95
7
13.7
Ø1.8
10.2
Ø4.15
Ø5.55
14.2
4.65
7
116
MS-145-C(LP)-1 MS-145-C(LP)-A MS-145-C(LP)-MI
Ø4.15
1/4-36UNS-2A
Ø7.3
6.7
18 5.3
6
6.3
MS-145 to SMA Male
Straight type
MS-145-HRMP-A
Panel mount type
MS-145-HRMJ
Straight type
MS-145-HRMJ-A-D
MS-145 to SMA Female
■Plug
■MS-145 to SMA adaptor
117
0.82mm
0.82mm
1.32mm
Engages up to a position (Q point) of 1.3 mm from the 5.06 mm diameter shoulder of the MS-145
Engages by pushing up to the 5.06 mm diameter shoulder (P surface)
of the MS-145
Engages by pushing up to the 5.06 mm diameter shoulder (P surface) of the MS-145
MS-145-C(LP)-1
MS-145-C(LP)-A
MS-145-C(LP)-MI
MS-145-HRMJ-A-D
MS-145-HRMP-A
MS-145-HRMJ
Part No. Engagement position Effective engagement
length (Nominal)
BUsage precautions
1. Please select plugs according to the following applications.
2. Applicable cable for plugs: 1.5D-HQEW or 1.5D-QEW (manufactured by Fujikura Ltd.).
3. No cleaning is needed after soldering or cable termination.
4. Please design avoiding holes so that force is not applied to this product from the case
when dropped in the board mounted condition.
5. When mounted as the RF interface of a Mobile Phone, please consider using a rubber
cap when the plug is not engaged to prevent dust from entering.
118
BRecommended solder temperature profile
BApplication examples
BRecommended nozzle configuration
(For receptacle board placement
with automatic equipment)
receptacle
Plug
Cable
O-ring
17
Ø1
Ø1.5
Ø3