Preliminary Product Listing

Model: PDC-25M-35M-25-SFF    

PMI Model No. PDC-25M-35M-25-SFF is a 25dB Directional Coupler having >25dB of directivity over the frequency of 25 to 35MHz.  This unit has an insertion loss of <0.4dB and is designed to handle up to 5 watts input power.  The unit is provided on a mounting plate with overall dimensions of 2.0" x 1.0" x 0.54" and is supplied with SMA female connectors.


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Product Feature



Frequency Range 25 to 35MHz
Coupling 25dB ±2dB
* The difference between the highest and lowest coupling values of any individual coupler shall not be more than 1dB.
Directivity 25dB min
*Defined as the ration of the power output at J3 to the power fed into J2 less the coupling.
Insertion Loss 0.4dB max
VSWR In/Out 1.2:1 max
Operating Input Power

5 Watts max

*Rating is for J1 port only

RF Connectors


Size 2.0" x 1.0" x 0.54"
Finish Painted Blue
Sealing Hermetic

Environmental Ratings:

Temperature:  -57ºC to +75ºC Operating
 -62ºC to +75ºC Non-Operating
 Humidity:  Up to 95% with condensation
 Moisture Resistance:  MIL-STD-202, Method 106
 Shock:  MIL-STD-202F, Method 213 Cond H
 Vibration:  MIL-STD-202F, Method 201
 Altitude:  Operating: 15K Ft, Non Operating: 40K Ft
 Salt Spray:  MIL-STD-202F, Method 101, Cond B