Datasheet

Series CCRT-53S/CRT-53S
COAX SWITCHES
Internal 50Ω Termination DC-26.5 GHz
Failsafe SPDT Coaxial Switch
PART NUMBER
DESCRIPTION
CCRT-53S
Commercial Failsafe SPDT, DC-26.5GHz, Internal 50Ω Termination
CRT-53S
Elite Failsafe SPDT, DC-26.5GHz, Internal 50Ω Termination
The CCRT-53S/CRT-53S is an internally terminated, broadband, SPDT, electromechanical coaxial switch
designed to switch a microwave signal from a common input to either of two outputs. The characteristic
impedance is 50 Ohms. Internal terminations provide an impedance match for the unselected port. The
switches are small with the minimum spacing that is compatible with SMA connectors.
ENVIRONMENTAL AND PHYSICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
Operating Temperature
Commercial Model, CCRT-53S
Elite Model, CRT-53S
Form Factor
–40°C to 65°C
–55°C to 85°C
SPDT,
break before make
Vibration (MIL-STD-202 Method 214,
Condition D, non-operating)
10 g’s RMS
Frequency Range
CCRT-53S
CRT-53S
DC–26.5 GHz
DC–26.5 GHz
Shock (MIL-STD-202 Method 213,
Condition D, non-operating)
500 g’s
Characteristic Impedance
50 Ohms
Terminations
50Ω, 2 Watts CW max.
Standard Actuator Life
Actuator Life w/ Additional Features
5,000,000 cycles
1,000,000 cycles
Operate Time
10 ms (max.)
Connector Type
SMA
Release Time
10 ms (max.)
Humidity (Moisture Seal)
Available
Weight
2.65 oz. (75.13g) (max.)
Actuation Voltage Available
12
Actuation Current, max. @ ambient
420 350 280 200 mA
15
24
28 V
PERFORMANCE CHARACTERISTICS
Frequency
DC–6 GHz
6–12 GHz
12–18 GHz
18–22 GHz
22–26.5 GHz
0.2
0.3
0.4
0.5
0.6
Insertion Loss, dB,
max.
Isolation, dB, min.
VSWR , max.
80
75
70
70
55
1.1:1
1.2:1
1.3:1
1.5:1
1.6:1
PART NUMBERING SYSTEM
CCRT-53
S
1
C
-
T **
Options
Series
Connectors
Actuator Type
Actuator Voltage
Connector
S: SMA Female
Actuator Voltage
1: 28 Vdc Failsafe
2: 15 Vdc Failsafe
3: 12 Vdc Failsafe
4: 24 Vdc Failsafe
Actuator Type
0: Standard Contacts
C: Indicator Contacts
**SEE PARTS LIST ON PAGE 8
Options
T: TTL Drivers with Diodes
D: Transient Suppression
Diodes
M: Moisture Seal
S: 9 Pin D-Sub Connector
For other options, contact factory.
© 2013 TELEDYNE RELAYS
(800) 284-7007 • www.teledynecoax.com
CCRT-53S/CRT-53S Page 1
CCRT-53S\CRT-53S\082013\Q3
Series CCRT-53S/CRT-53S
COAX SWITCHES
Internal 50Ω Termination DC-26.5 GHz
Failsafe SPDT Coaxial Switch
SCHEMATICS AND MECHANICAL OUTLINE
H = 1.75 MAX. STD & Indicator Model
H = 1.90 MAX. TTL Model
H = 2.05 MAX. 9-Pin D-Sub Model
Indicators
TTL
Analog
1
6
“-S OPTION” 9-PIN D-SUB CONNECTOR (EXAMPLE:
9 PIN D-SUB PINOUT FOR FAILSAFE SPDT
TRUTH TABLE (with TTL option)
OPTIONS
Pin
No.
1
2
3
4
5
6
7
8
9
Basic
Indicators
+
-
+
-
CCRT-53S/CRT-53S Page 2
A
B
C
TTL
CCRT-53S10-S)
Indicators &
TTL
Common
1
Common
1
Vsw
Vsw
A
B
C
Logic
Input
1
Indicator
RF Path
(if applicable)
IN
to 1
IN
to 2
A
0
On
Terminated
C
0
1
Terminated
On
0
C
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
B
© 2013 TELEDYNE COAX SWITCHES
CCRT-53S\CRT-53S\082013\Q3
Series CCRT-53S/CRT-53S
COAX SWITCHES
Internal 50Ω Termination DC-26.5 GHz
Failsafe SPDT Coaxial Switch
TYPICAL NARROWBAND RF INSERTION LOSS PERFORMANCE CURVES
Insertion Loss ( 6-12 GHz )
0.0
0.0
-0.1
-0.1
-0.2
-0.2
Insertion Loss (dB)
Insertion Loss (dB)
Insertion Loss ( DC-6 GHz )
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1.0
-1.0
0
1
2
3
4
5
6
6
7
8
Frequency (GHz)
Insertion Loss ( 12-18 GHz )
10
11
12
Insertion Loss ( 18-22 GHz )
0.0
0.0
-0.1
-0.1
-0.2
-0.2
Insertion Loss (dB)
Insertion Loss (dB)
9
Frequency (GHz)
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1.0
-1.0
12
13
14
15
16
17
18
18
19
Frequency (GHz)
20
21
22
Frequency (GHz)
Insertion Loss ( 22-26.5 GHz )
0.0
Insertion Loss (dB)
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1.0
22
23
24
25
26
Frequency (GHz)
RF NOTES
© 2013 TELEDYNE RELAYS
(800) 284-7007 • www.teledynecoax.com
CCRT-53S/CRT-53S Page 3
CCRT-53S\CRT-53S\082013\Q3
Series CCRT-53S/CRT-53S
COAX SWITCHES
Internal 50Ω Termination DC-26.5 GHz
Failsafe SPDT Coaxial Switch
TYPICAL NARROWBAND RF ISOLATION PERFORMANCE CURVES
Isolation ( 6-12 GHz )
0
-20
-20
-40
-40
Isolation (dB)
Isolation (dB)
Isolation ( DC-6 GHz )
0
-60
-80
-60
-80
-100
-100
-120
-120
-140
-140
0
1
2
3
4
5
6
6
7
8
Frequency (GHz)
Isolation ( 12-18 GHz )
10
11
12
Isolation ( 18-22 GHz )
0
0
-20
-20
-40
-40
Isolation (dB)
Isolation (dB)
9
Frequency (GHz)
-60
-80
-60
-80
-100
-100
-120
-120
-140
-140
12
13
14
15
16
17
18
18
18.5
19
19.5
Frequency (GHz)
20
20.5
21
21.5
22
Frequency (GHz)
Isolation ( 22-26.5 GHz )
0
-20
Isolation (dB)
-40
-60
-80
-100
-120
-140
22
22.5
23
23.5
24
24.5
25
25.5
26
26.5
Frequency (GHz)
RF NOTES
CCRT-53S/CRT-53S Page 4
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2013 TELEDYNE COAX SWITCHES
CCRT-53S\CRT-53S\082013\Q3
Series CCRT-53S/CRT-53S
COAX SWITCHES
Internal 50Ω Termination DC-26.5 GHz
Failsafe SPDT Coaxial Switch
TYPICAL NARROWBAND RF VSWR PERFORMANCE CURVES
VSWR ( 6-12 GHz )
2.0
1.9
1.9
1.8
1.8
1.7
1.7
1.6
1.6
VSWR
VSWR
VSWR ( DC-6 GHz )
2.0
1.5
1.4
1.5
1.4
1.3
1.3
1.2
1.2
1.1
1.1
1.0
1.0
0
1
2
3
4
5
6
6
7
8
Frequency (GHz)
VSWR ( 12-18 GHz )
10
11
12
VSWR ( 18-22 GHz )
2.0
2.0
1.9
1.9
1.8
1.8
1.7
1.7
1.6
1.6
VSWR
VSWR
9
Frequency (GHz)
1.5
1.4
1.5
1.4
1.3
1.3
1.2
1.2
1.1
1.1
1.0
1.0
12
13
14
15
16
17
18
18
18.5
19
Frequency (GHz)
19.5
20
20.5
21
21.5
22
Frequency (GHz)
VSWR ( 22-26.5 GHz )
2.0
1.9
1.8
VSWR
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
22
22.5
23
23.5
24
24.5
25
25.5
26
26.5
Frequency (GHz)
RF NOTES
© 2013 TELEDYNE RELAYS
(800) 284-7007 • www.teledynecoax.com
CCRT-53S/CRT-53S Page 5
CCRT-53S\CRT-53S\082013\Q3
Series CCRT-53S/CRT-53S
COAX SWITCHES
Internal 50Ω Termination DC-26.5 GHz
Failsafe SPDT Coaxial Switch
TYPICAL POWER PERFORMANCE CURVE
Power Handling vs. Frequency
3000
2000
1000
800
600
ST
AN
DA
RD
SM
AS
WI
TC
HE
S
Power (W)
400
300
200
100
80
60
40
30
20
10
.1
.2
.3 .4 .6 .8 1
2
4
6 8 10
18 26.5
Frequency GHz
Estimates based on the following reference conditions:
• Ambient temperature of 40°C or less
• Sea level operation
• Load VSWR of 1.20:1 maximum
• No high-power (hot) switching
Please contact Teledyne Coax Switches for derating factors when applications do not meet the foregoing reference conditions.
CCRT-53S/CRT-53S Page 6
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2013 TELEDYNE COAX SWITCHES
CCRT-53S\CRT-53S\082013\Q3
Series CCRT-53S/CRT-53S
COAX SWITCHES
Internal 50Ω Termination DC-26.5 GHz
Failsafe SPDT Coaxial Switch
GLOSSARY
Actuator
An actuator is the electromechanical mechanism that
transfers the RF contacts from one position to another upon
DC command.
including contact bounce. It consists of three parts: (1)
inductive delay in the coil, (2) transfer time of the physical
movement of the contacts, and (3) the bounce time of the
RF contacts.
Arc Suppression Diode
A diode is connected in parallel with the coil. This diode
limits the “reverse EMF spike” generated when the coil deenergizes to 0.7 volts. The diode cathode is connected to
the positive side of the coil and the anode is connected to
the negative side.
TTL Switch Driver Option
As a special option, switch drivers can be provided for both
failsafe and latching switches, which are compatible with
industry-standard low-power Schottky TTL circuits.
Date Code
All switches are marked with either a unique serial number
or a date code. Date codes are in accordance with MILSTD-1285 Paragraph 5.2.5 and consist of four digits.
The first two digits define the year and the last two digits
define the week of the year (YYWW). Thus, 1032 identifies
switches that passed through final inspection during the
32nd week of 2010.
Failsafe
A failsafe switch reverts to the default or failsafe position
when actuating voltage is removed. This is realized by a
return spring within the drive mechanism. This type of switch
requires the continuous application of operating voltage to
select and hold any position. (Multi-position switches are
normally open with no voltage applied).
Indicator
Indicators tell the system which position the switch is in.
Other names for indicators are telemetry contacts or tellback
circuit. Indicators are usually a set of internally mounted DC
contacts linked to the actuator. They can be wired to digital
input lines, status lights, or interlocks. Unless otherwise
specified, the maximum indicator contact rating is 30 Vdc,
50 mA, or 1.5 Watts into a resistive load.
Internal Termination
Unselected ports are internally terminated to a matched
load. The load is 50Ω resistive device. The max RF power
rating is 2 Watts CW. Without the internal termination option,
the unselected ports are open circuits.
Isolation
Isolation is the measure of the power level at the output
connector of an unconnected RF channel as referenced to
the power at the input connector. It is specified in dB below
the input power level.
SPDT Switch
A single-pole double-throw, bi-directional switch that can
be used as having one input and two outputs or two inputs
and one output.
Switching Time
Switching time is the total interval beginning with the arrival
of the leading edge of the command pulse at the switch DC
input and ending with the completion of the switch transfer,
© 2013 TELEDYNE RELAYS
Performance Parameters vs Frequency
Generally speaking, the RF performance of coaxial switches
is frequency dependent. With increasing frequency, VSWR
and insertion loss increase while isolation decreases. All
data sheets specify these three parameters as “worst case”
at the highest operating frequency. If the switch is to be
used over a narrow frequency band, better performance
can be achieved.
Actuator Current vs Temperature
The resistance of the actuator coil varies as a function of
temperature. There is an inverse relationship between the
operating temperature of the switch and the actuator drive
current. For switches operating at 28 VDC, the approximate
actuator drive current at temperature, T, can be calculated
using the equation:
I
IT =
A
[1 + .00385 (T-20)]
Where:
IT = Actuator current at temperature, T
IA = Room temperature actuator current –
see data sheet
T = Temperature of interest in °C
Magnetic Sensitivity
An electro-mechanical switch can be sensitive to ferrous
materials and external magnetic fields. Neighboring ferrous
materials should be permitted no closer than 0.5 inches and
adjacent external magnetic fields should be limited to a flux
density of less than 5 Gauss.
SPECIAL FEATURE
Switching High-Power or Highly Sensitive Signals
Ensure the most linear response with the best galvanically
matched contact system in the industry. Extremely low
passive intermodulation is standard on all of our switches.
Carrier
Frequency 1
Carrier
Frequency 2
PIM 3rd Order
Frequency
PIM 5th
Order Frequency
870 MHz
893 MHz
847 MHz
824 MHz
SPDT
(800) 284-7007 • www.teledynecoax.com
3rd Order
Intermodulation
5th Order
Intermodulation
–91 dBm
–110 dBm
–134 dBc
–153 dBc
CCRT-53S/CRT-53S Page 7
CCRT-53S\CRT-53S\082013\Q3
Series CCRT-53S/CRT-53S
COAX SWITCHES
Internal 50Ω Termination DC-26.5 GHz
Failsafe SPDT Coaxial Switch
FAILSAFE CCRT-53S/CRT-53S PART NUMBER LIST
PART NO.
*
PART NO.
PART NO.
1
CCRT-53SXC
43
CCRT-53SX0
85
CRT-53SXD-MS
2
CCRT-53SXC-D
44
CCRT-53SX0-D
86
CRT-53SXD-R
3
CCRT-53SXC-DM
45
CCRT-53SX0-DM
87
CRT-53SXD-RM
4
CCRT-53SXC-DMS
46
CCRT-53SX0-DMS
88
CRT-53SXD-RMS
5
CCRT-53SXC-DR
47
CCRT-53SX0-DR
89
CRT-53SXD-RS
6
CCRT-53SXC-DRM
48
CCRT-53SX0-DRM
90
CRT-53SXD-S
7
CCRT-53SXC-DRMS
49
CCRT-53SX0-DRMS
91
CRT-53SXD-T
8
CCRT-53SXC-DRS
50
CCRT-53SX0-DRS
92
CRT-53SXD-TM
9
CCRT-53SXC-DS
51
CCRT-53SX0-DS
93
CRT-53SXD-TMS
10
CCRT-53SXC-M
52
CCRT-53SX0-M
94
CRT-53SXE
11
CCRT-53SXC-MS
53
CCRT-53SX0-MS
95
CRT-53SXE-M
12
CCRT-53SXC-R
54
CCRT-53SX0-R
96
CRT-53SXE-MS
13
CCRT-53SXC-RM
55
CCRT-53SX0-RM
97
CRT-53SXE-R
14
CCRT-53SXC-RMS
56
CCRT-53SX0-RMS
98
CRT-53SXE-RM
15
CCRT-53SXC-RS
57
CCRT-53SX0-RS
99
CRT-53SXE-RMS
16
CCRT-53SXC-S
58
CCRT-53SX0-S
100
CRT-53SXE-RS
17
CCRT-53SXC-T
59
CCRT-53SX0-T
101
CRT-53SXE-S
18
CCRT-53SXC-TM
60
CCRT-53SX0-TM
102
CRT-53SXE-T
19
CCRT-53SXC-TMS
61
CCRT-53SX0-TMS
103
CRT-53SXE-TM
20
CCRT-53SXC-TS
62
CCRT-53SX0-TS
104
CRT-53SXE-TMS
21
CCRT-53SXD
63
CRT-53SXC
105
CRT-53SX0
22
CCRT-53SXD-M
64
CRT-53SXC-D
106
CRT-53SX0-D
23
CCRT-53SXD-MS
65
CRT-53SXC-DM
107
CRT-53SX0-DM
24
CCRT-53SXD-R
66
CRT-53SXC-DMS
108
CRT-53SX0-DMS
25
CCRT-53SXD-RM
67
CRT-53SXC-DR
109
CRT-53SX0-DR
26
CCRT-53SXD-RMS
68
CRT-53SXC-DRM
110
CRT-53SX0-DRM
27
CCRT-53SXD-RS
69
CRT-53SXC-DRMS
111
CRT-53SX0-DRMS
28
CCRT-53SXD-S
70
CRT-53SXC-DRS
112
CRT-53SX0-DRS
29
CCRT-53SXD-T
71
CRT-53SXC-DS
113
CRT-53SX0-DS
30
CCRT-53SXD-TM
72
CRT-53SXC-M
114
CRT-53SX0-M
31
CCRT-53SXD-TMS
73
CRT-53SXC-MS
115
CRT-53SX0-MS
32
CCRT-53SXE
74
CRT-53SXC-R
116
CRT-53SX0-R
33
CCRT-53SXE-M
75
CRT-53SXC-RM
117
CRT-53SX0-RM
34
CCRT-53SXE-MS
76
CRT-53SXC-RMS
118
CRT-53SX0-RMS
35
CCRT-53SXE-R
77
CRT-53SXC-RS
119
CRT-53SX0-RS
36
CCRT-53SXE-RM
78
CRT-53SXC-S
120
CRT-53SX0-S
37
CCRT-53SXE-RMS
79
CRT-53SXC-T
121
CRT-53SX0-T
38
CCRT-53SXE-RS
80
CRT-53SXC-TM
122
CRT-53SX0-TM
39
CCRT-53SXE-S
81
CRT-53SXC-TMS
123
CRT-53SX0-TMS
40
CCRT-53SXE-T
82
CRT-53SXC-TS
124
CRT-53SX0-TS
41
CCRT-53SXE-TM
83
CRT-53SXD
42
CCRT-53SXE-TMS
84
CRT-53SXD-M
X = 1 (28Vdc), 2 (15Vdc), 3 (12Vdc) and 4 (24Vdc)
CCRT-53S/CRT-53S Page 8
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2013 TELEDYNE COAX SWITCHES
CCRT-53S\CRT-53S\082013\Q3