SP3T PIN Diode Switches
0.5 to 18.0GHz
Non-Reflective
Features:
•
•
•
•
•
Removable SMA Connectors
Integral TTL Compatible Drivers
Internally Terminated
Miniature Outline
Very Fast Switching
Low Loss and
High Isolation
•
Description:
The SMS-331-00DT range of SP3T PIN diode
switches are packaged in miniature, silver
plated housings with SMA connectors. The
SMA connectors can be removed to allow direct integration into microstrip circuits if required and all units
contain TTL compatible drivers. Ports J2, J3 and J4 are internally terminated to maintain VSWR when the
switch is isolating. Optional surface finish is available, see note below for options.
Specifications:
Frequency
Range (GHz)
0.5 – 2.0
0.5 – 6.0
6.0 – 12.0
12.0 – 18.0
6.0 – 18.0
0.5 – 18.0
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
(indicated values @ +25° C)
Max
Insertion
Loss (dB)
1.6
2.1
2.8
3.4
3.4
3.4
Max
VSWR
(Ratio)
1.5:1
1.6:1
1.7:1
1.9:1
1.9:1
1.9:1
Min
Isolation
(dB)
50
50
60
55
55
55
Max
Switching
Speed (ns)
30
30
30
30
30
30
Max Power
Peak/CW
(mW)
100
100
100
100
100
100
Part Number
SMS-331-01DT
SMS-331-02DT
SMS-331-03DT
SMS-331-04DT
SMS-331-05DT
SMS-331-06DT
Power supplies: +5V @ 100mA max, -5V @ 50mA max.
Total switching time is defined as 50% TTL to 10/90% detected RF.
3 Individual TTL compatible control lines are provided. TTL ‘0’ = low loss, TTL’1’ = isolation.
TTL Control Voltage should be = or < positive supply voltage at all times.
Operating temperature range –40° to +85° C. Storage temperature range –55° to +125° C.
Third angle projection, all dimensions in mm.
Port J1 = RF common , Port J2 = RF input/output, Port J3 = RF input/output, Port J4 = RF input/output.
Options:
Add the following identifiers as suffixes to the part numbers above, i.e. SMS -331-01DTP.
P = Finish Matt black paint to DTD5555A.
The switch is available without integral drivers to allow users to externally optimise bias levels. Please consult the factory for detail
information.
Please contact the factory for any custom requirements or applications assistance.
Cranfield Innovation Centre, University Way, Cranfield Technology Park, Cranfield, Bedfordshire, MK43 0BT, United Kingdom
Telephone: #44 (0)1234 756034
Fax: #44 (0) 1234 756035
July 00/2
e-mail: enquiries@smslimited.co.uk
Web page: www.smslimited.co.uk
All specifications subject to change without notice
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