str-3-d rlc sp3t sma dc-18ghz 28v  单刀双掷射频微波同轴转换开关
官网资料 /9-switches/65-terminated_multi-position,_str-3,_-4,_-5,_-6_series
terminated multi-position coaxial switches (3 to 6 position)
rlc electronics' terminated multi-position coaxial switch line provides proven reliability, long life and outstanding electrical performance and features extremely low insertion loss and vswr over the entire dc-18 ghz range, with an option to 26 and 40 ghz while maintaining high isolation.
specifications
st1-2-3-4-5-6-7-8
rf positions
3
4
5
6
all
all
frequency range:(ghz)
dc-18
dc-18
dc-18
dc-18
18-26.5
26.5-40
insertion loss (db max)
   dc-4 ghz
   4.0-12.4 ghz
   12.4-18.0 ghz
   18-26.5 ghz
   26-5-40 ghz
0.20
0.30
0.50
0.20
0.30
0.50
0.20
0.30
0.50
0.20
0.30
0.50
0.20
0.30
0.50
1.00
0.20
0.30
0.50
0.75
0.90
vswr (max)
   dc-4.0 ghz
   4.0-12.4 ghz
   12.4-18.0 ghz
   18-26.5 ghz
   26.5-40 ghz
1.25:1
1.40:1
1.50:1
1.25:1
1.40:1
1.50:1
1.25:1
1.40:1
1.50:1
1.25:1
1.40:1
1.50:1
1.25:1
1.40:1
1.50:1
1.80:1
1.25:1
1.40:1
1.50:1
1.70:1
2.0:1
isolation (db min)
   dc-4.0 ghz
   4.0-12.4 ghz
   12.4-18 ghz
   18-26.5 ghz
   26.5-40 ghz
60
60
60
40
60
60
60
40
60
60
60
40
60
60
60
40
60
60
60
40
60
60
60
55
50
power rating, rf cold switching: 2 watts average
impedance: 50 ohms
operating power 25c: 
   (failsafe): 12vdc at 600 ma nom. 28vdc at 260 ma nom. 115vac at 40 ma nom.
   (latching): 12 vdc at 480ma nom. 28vdc at 240ma nom.  115 vac at 225 ma nom. cutthroat circuitry (standard),  recovery time 100ms nom.
connectors, rf: sma female (40 ghz-2.92 mm)
life: 1,000,000 operations.
switching time: 25 ms max. failsafe 125 ms latching
weight: 20oz.
environmental conditions: mil-dtl-3928
operating mode: failsafe, manual or latching
switching sequence: break before make.
to designate the switch desired use:
1: "m" for manual, "r" for remote.
2: "3", "4", "5" or "6" throw operation
3: "a" for 115 vac, "d" for 28 vdc or "h" for 12 vdc
4: "i" for indicators if desired.
5: "l" for latching cutthroat if desired
6: "tl" for ttl driver if desired
7: "26" for 26.5 ghz options.
8: "40" for 40 ghz option
example: str-3-d is a sp-3t, 28 vdc, without indicators, failsafe switch

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