Elite
CT-38
Normally Open
Multi-Throw Internal Terminations DC-22GHz
The CT-38 Switch is an internally terminated, broadband, multi-throw, electromechanical
coaxial switch designed to switch a microwave signal from a common input to any of 3, 4, 5,
or 6 outputs. The characteristic impedance is 50 Ohms. Internal terminations provide an
impedance match for the unselected ports. The switches are small using the popular
connector spacing on a 1.062" dia. circle. Each position has an individual actuator mechanism
allowing random position selection. This also minimizes switching time.
Specifications
RF Contacts:
Actuator
Break before make
Voltage (VDC) 20
O
C
Current (mA)
Switching Time:
Terminations:
Connectors:
Weight:
15 msec max
50 Ohm 2 Watts CW max
SMA (f)
6 oz. max
12
15
28
The CT-38 comes with a normally open actuator. For the
normally open actuator, all ports are terminated in 50 Ohms,
except the common input port which is open when the switch
is de-energized.
170 136 180
Temperature Range:
-55
O
C to +85
O
C (Operating)
Shock:
Vibration:
Humidity:
Typical Contact Life:
MIL-STD-202 Method 213, Condition D (500G Non Operating)
MIL-STD-202 Method 214, Condition D (10G RMS Non Operating)
Moisture Seal Available
5 Million Cycles
Insertion Loss Repeatability (1 Million Cycles):
DC to 6 GHz: 0.05 dB
DC to 20 GHz: 0.1 dB
RF Power Handling (Non-Terminated)
Typical Performance
3000
800
400
Sta
Power CW (Watts)
nda
rd S
15
MA
C
onn
e
cto
rs
200
25
80
40
Return Loss
0.01
Frequency GHz
22.0
10
0.1
0.0
1.0
4.0
Frequency GHz
10
18 22
0.4
IL dB
Specifications
VSWR (max)
Insertion Loss (min)
Isolation (max)
DC-6 GHz 6-12 GHz 12-18 GHz 18-22 GHz
1.25:1
0.20 dB
70.0 dB
1.40:1
0.40 dB
60.0 dB
1.50:1
0.50 dB
60.0 dB
1.80:1
0.80 dB
50.0 dB
60
70
80
90
0.01
Frequency GHz
22.0
Specifications subject to change without notice.
www.teledynecoax.com
email: coax@teledyne.com
Tel: (800) 351-7368
10/2007
Isolation dB
Multi-Throw Internal Terminations DC-22GHz
Elite
CT-38
Normally Open
Analog
Indicators
SP3T
TTL
SP5T
SP6T
H = 1.85 STD Model
H = 2.50 TTL Model
SP4T
Part Numbering System for CT-38 (Normally Open)
CT-38 S 1 5 O - T
Series
Connectors
Actuator Voltage
Connector
S: SMA Female
Actuator Voltage
1: 28Vdc Normally Open
2: 15Vdc Normally Open
3: 12Vdc Normally Open
Number of
Positions
3: SP3T
4: SP4T
5: SP5T
6: SP6T
Options
Actuator Type
Number of Switch Positions
Actuator Type
O: No Indicator Contacts
C: Indicator Contacts
Options
T: TTL Drivers with Diodes
R: Positive + Common
TD: TTL Driver with Decoder
For other options contact Factory
Specifications subject to change without notice.
www.teledynecoax.com
email: coax@teledyne.com
Tel: (800) 351-7368
10/2007
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