RPPSMT – Reverse Polarity Protection SMD Version


Worried one day you will hook  up your radio backwards and watch the magic smoke?  Stop worrying by adding this low loss reverse polarity protection board to your next QRP rig. Details on how it works can be found in the Reverse Polarity Protection article.

15 in stock

SKU: RPP-SMT-A Category:


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Want to try your hand at surface mount soldering but don’t want to spend big bucks to try it? The RPP-SMT version was designed using larger surface mount parts. Afraid of loosing the really small parts? No worries! We will include 2 resistors, capacitors, and diodes in each kit!

 Downloadable manual available on our Manuals page.



RPP-SMT Installed

RPP-SMT Specifications

Supply voltage input: Minimum 4V (Vgsth) Maximum 50V (Vdss)
Current Load: 4.25A Continous 7A Peak
Typical Voltage Drop across RPP @ 13.4VDC 1mV@60mA 130mV@820mA
340mV@1.3A 900mV@5.4A for 60seconds

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Additional information

Weight 2 oz
Dimensions 4 × 4 × 2 in

Kit, Assembled


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