Datasheet

Series CCRT-33S/CRT-33S
COAX SWITCHES
Internal 50Ω Termination DC–18 GHz/DC-22 GHz
Latching SPDT Coaxial Switch
PART NUMBER
DESCRIPTION
CCRT-33S
Commercial Latching SPDT, DC-18GHz, Internal 50Ω Termination
CRT-33S
Elite Latching SPDT, DC-22GHz, Internal 50Ω Termination
The CCRT-33S/CRT-33S 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-33S
Elite Model, CRT-33S
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-33S
CRT-33S
DC–18 GHz
DC–22 GHz
Shock (MIL-STD-202 Method 213,
Condition D, non-operating)
500 g’s
Characteristic Impedance
50 Ohms
Standard Actuator Life
Actuator Life w/ Additional Features
5,000,000 cycles
1,000,000 cycles
Connector Type
SMA
Humidity (Moisture Seal)
Available
Weight
2.65 oz. (75.13g) (max.)
Terminations
50Ω, 2 Watts CW max.
Operate Time
10 ms (max.)
Release Time
10 ms (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
0.2
0.3
0.4
0.5
Insertion Loss, dB,
max.
Isolation, dB, min.
VSWR , max.
80
75
70
70
1.1:1
1.2:1
1.3:1
1.5:1
PART NUMBERING SYSTEM
CCRT-33
S
6
C
-
T **
Options
Series
Connectors
Actuator Type
Actuator Voltage
Connector
S: SMA Female
Actuator Voltage
6: 28 Vdc Latching
7: 15 Vdc Latching
8: 12 Vdc Latching
9: 24 Vdc Latching
Actuator Type
0: Standard Contacts
C: Indicator Contacts
D: Self Cutoff Only
E: Indicators and Self Cutoff
**SEE PARTS LIST ON PAGE 8
Options
T: TTL Drivers with Diodes
D: Transient Suppression
Diodes
R: Positive + Common
M: Moisture Seal
S: 9 Pin D-Sub Connector
For other options, contact factory.
© 2013 TELEDYNE RELAYS
(800) 284-7007 • www.teledynecoax.com
CCRT-33S/CRT-33S Page 1
CCRT-33S\CRT-33S\082013\Q3
Series CCRT-33S/CRT-33S
COAX SWITCHES
Internal 50Ω Termination DC–18 GHz/DC-22 GHz
Latching 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
Analog
TTL
1
6
“-S OPTION” 9-PIN D-SUB CONNECTOR (EXAMPLE:
9 PIN D-SUB PINOUT FOR LATCHING SPDT
CCRT-33S60-S)
TRUTH TABLE (with TTL option)
OPTIONS
Pin
No.
1
2
3
4
5
6
7
8
9
Basic
Indicators
1
2
C
1
2
C
CCRT-33S/CRT-33S Page 2
A
B
C
TTL
Common
1
2
Vsw
Indicators &
TTL
Common
1
2
Vsw
A
B
C
Logic Input
RF Path
1
2
0
0
No Change
1
0
On
0
1
Terminated
1
1
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
IN
to 1
IN
to 2
Indicator
(if applicable)
A
B
Terminated
C
0
On
0
C
Forbidden
© 2013 TELEDYNE COAX SWITCHES
CCRT-33S\CRT-33S\082013\Q3
Series CCRT-33S/CRT-33S
COAX SWITCHES
Internal 50Ω Termination DC–18 GHz/DC-22 GHz
Latching 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
Frequency (GHz)
19
20
21
22
Frequency (GHz)
ELITE MODEL ONLY
RF NOTES
© 2013 TELEDYNE RELAYS
(800) 284-7007 • www.teledynecoax.com
CCRT-33S/CRT-33S Page 3
CCRT-33S\CRT-33S\082013\Q3
Series CCRT-33S/CRT-33S
COAX SWITCHES
Internal 50Ω Termination DC–18 GHz/DC-22 GHz
Latching 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
Frequency (GHz)
19.5
20
20.5
21
21.5
22
Frequency (GHz)
ELITE MODEL ONLY
RF NOTES
CCRT-33S/CRT-33S Page 4
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2013 TELEDYNE COAX SWITCHES
CCRT-33S\CRT-33S\082013\Q3
Series CCRT-33S/CRT-33S
COAX SWITCHES
Internal 50Ω Termination DC–18 GHz/DC-22 GHz
Latching 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
Frequency (GHz)
19
19.5
20
20.5
21
21.5
22
Frequency (GHz)
ELITE MODEL ONLY
RF NOTES
© 2013 TELEDYNE RELAYS
(800) 284-7007 • www.teledynecoax.com
CCRT-33S/CRT-33S Page 5
CCRT-33S\CRT-33S\082013\Q3
Series CCRT-33S/CRT-33S
COAX SWITCHES
Internal 50Ω Termination DC–18 GHz/DC-22 GHz
Latching SPDT Coaxial Switch
TYPICAL POWER PERFORMANCE CURVE
Power Handling vs. Frequency
3000
2000
Power (W)
1000
800
600
400 STAN
DAR
DS
300
MA
200
SW
ITC
HES
100
80
60
40
30
20
10
.1
.2
.3 .4 .6 .8 1
2
4
6 8 10
18
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-33S/CRT-33S Page 6
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2013 TELEDYNE COAX SWITCHES
CCRT-33S\CRT-33S\082013\Q3
Series CCRT-33S/CRT-33S
COAX SWITCHES
Internal 50Ω Termination DC–18 GHz/DC-22 GHz
Latching SPDT Coaxial Switch
GLOSSARY
Actuator
An actuator is the electromechanical mechanism that transfers
the RF contacts from one position to another upon DC
command.
and ending with the completion of the switch transfer, 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 de-energizes
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 MIL-STD-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.
Latching
A latching switch remains in the selected position whether
or not voltage is maintained. This can be accomplished with
either a magnetic or mechanical latching mechanism.
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.
Self-Cutoff
The self-cutoff option disables the actuator current on
completion of actuation. Either a series contact (linked to the
actuator) or an IC driver circuit provides the current cutoff. This
option results in minimum power consumption by the RF switch.
Cutthroat is another name used in the industry for this option.
Pulse latching is a term used to describe a switch without this
feature.
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:
IT =
IA
[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
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.
PIM 5th
Order Frequency
870 MHz
893 MHz
847 MHz
824 MHz
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
SPDT
© 2013 TELEDYNE RELAYS
(800) 284-7007 • www.teledynecoax.com
3rd Order
Intermodulation
5th Order
Intermodulation
–91 dBm
–110 dBm
–134 dBc
–153 dBc
CCRT-33S/CRT-33S Page 7
CCRT-33S\CRT-33S\082013\Q3
Series CCRT-33S/CRT-33S
COAX SWITCHES
Internal 50Ω Termination DC–18 GHz/DC-22 GHz
Latching SPDT Coaxial Switch
LATCHING CCRT-33S/CRT-33S PART NUMBER LIST
PART NO.
*
1
CCRT-33SXC
2
CCRT-33SXC-D
3
CCRT-33SXC-DM
4
CCRT-33SXC-DMS
5
6
PART NO.
43
PART NO.
CCRT-33SX0
85
CRT-33SXD-MS
44
CCRT-33SX0-D
86
CRT-33SXD-R
45
CCRT-33SX0-DM
87
CRT-33SXD-RM
46
CCRT-33SX0-DMS
88
CRT-33SXD-RMS
CCRT-33SXC-DR
47
CCRT-33SX0-DR
89
CRT-33SXD-RS
CCRT-33SXC-DRM
48
CCRT-33SX0-DRM
90
CRT-33SXD-S
7
CCRT-33SXC-DRMS
49
CCRT-33SX0-DRMS
91
CRT-33SXD-T
8
CCRT-33SXC-DRS
50
CCRT-33SX0-DRS
92
CRT-33SXD-TM
9
CCRT-33SXC-DS
51
CCRT-33SX0-DS
93
CRT-33SXD-TMS
10
CCRT-33SXC-M
52
CCRT-33SX0-M
94
CRT-33SXE
11
CCRT-33SXC-MS
53
CCRT-33SX0-MS
95
CRT-33SXE-M
12
CCRT-33SXC-R
54
CCRT-33SX0-R
96
CRT-33SXE-MS
13
CCRT-33SXC-RM
55
CCRT-33SX0-RM
97
CRT-33SXE-R
14
CCRT-33SXC-RMS
56
CCRT-33SX0-RMS
98
CRT-33SXE-RM
15
CCRT-33SXC-RS
57
CCRT-33SX0-RS
99
CRT-33SXE-RMS
16
CCRT-33SXC-S
58
CCRT-33SX0-S
100
CRT-33SXE-RS
17
CCRT-33SXC-T
59
CCRT-33SX0-T
101
CRT-33SXE-S
18
CCRT-33SXC-TM
60
CCRT-33SX0-TM
102
CRT-33SXE-T
19
CCRT-33SXC-TMS
61
CCRT-33SX0-TMS
103
CRT-33SXE-TM
20
CCRT-33SXC-TS
62
CCRT-33SX0-TS
104
CRT-33SXE-TMS
21
CCRT-33SXD
63
CRT-33SXC
105
CRT-33SX0
22
CCRT-33SXD-M
64
CRT-33SXC-D
106
CRT-33SX0-D
23
CCRT-33SXD-MS
65
CRT-33SXC-DM
107
CRT-33SX0-DM
24
CCRT-33SXD-R
66
CRT-33SXC-DMS
108
CRT-33SX0-DMS
25
CCRT-33SXD-RM
67
CRT-33SXC-DR
109
CRT-33SX0-DR
26
CCRT-33SXD-RMS
68
CRT-33SXC-DRM
110
CRT-33SX0-DRM
27
CCRT-33SXD-RS
69
CRT-33SXC-DRMS
111
CRT-33SX0-DRMS
28
CCRT-33SXD-S
70
CRT-33SXC-DRS
112
CRT-33SX0-DRS
29
CCRT-33SXD-T
71
CRT-33SXC-DS
113
CRT-33SX0-DS
30
CCRT-33SXD-TM
72
CRT-33SXC-M
114
CRT-33SX0-M
31
CCRT-33SXD-TMS
73
CRT-33SXC-MS
115
CRT-33SX0-MS
32
CCRT-33SXE
74
CRT-33SXC-R
116
CRT-33SX0-R
33
CCRT-33SXE-M
75
CRT-33SXC-RM
117
CRT-33SX0-RM
34
CCRT-33SXE-MS
76
CRT-33SXC-RMS
118
CRT-33SX0-RMS
35
CCRT-33SXE-R
77
CRT-33SXC-RS
119
CRT-33SX0-RS
36
CCRT-33SXE-RM
78
CRT-33SXC-S
120
CRT-33SX0-S
37
CCRT-33SXE-RMS
79
CRT-33SXC-T
121
CRT-33SX0-T
38
CCRT-33SXE-RS
80
CRT-33SXC-TM
122
CRT-33SX0-TM
39
CCRT-33SXE-S
81
CRT-33SXC-TMS
123
CRT-33SX0-TMS
40
CCRT-33SXE-T
82
CRT-33SXC-TS
124
CRT-33SX0-TS
41
CCRT-33SXE-TM
83
CRT-33SXD
42
CCRT-33SXE-TMS
84
CRT-33SXD-M
X = 6 (28Vdc), 7 (15Vdc), 8 (12Vdc) and 9 (24Vdc)
CCRT-33S/CRT-33S Page 8
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2013 TELEDYNE COAX SWITCHES
CCRT-33S\CRT-33S\082013\Q3
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