component identification

[Jimmy]

Hi,

I've got a number of 3-port devices labeled SMC CHK-705S and others
labeled SMC CHK-703S. I suspect they are mixers, but does anyone know
specs or who the manufacturer is? Presumably SMC, but I don't know what
that is.

Also in question, I have 3-port (3'rd terminated) Ditom DF5846 (prob
isolator)
and CTT's APM/080-2419.

I also have what appears to be a mini-circuits image reject mixer
that's labeled Pulsar IR-F2-412 0122

Or a 3-port TRAK circulator 50A3001?
any info and specs would be greatly appreciated.
Thx,
Jimmy

 

[jimmie_perez]

Here are the specs for the Trak 50A3001 circulator
Freq: 2.0 - 4.0 GHz
Isolation: 18dB min
Insertion Loss: 0.5dB max
VSWR: 1.30:1 max
Power Handling: 0.6kW peak, 125 W avg
Temp: 0 - 70 C

You can download the drawing from my website as long as it stays
active.

http://www.et.byu.edu/~jjp43/50A3001rB.pdf