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โก Keep your solar power unstoppable with Tnisesmโs high-efficiency Schottky diodes!
The Tnisesm 20SQ050 is a high-performance Schottky barrier rectifier diode rated for 20A forward current and 50V peak reverse voltage. This 20-piece axial diode kit is lead-free and RoHS compliant, featuring low forward voltage drop for minimal power loss. Ideal for solar panel protection and automotive applications, it ensures reliable, efficient circuit blocking and quick replacement readiness.














































| Customer Reviews | 4.6 out of 5 stars 486 Reviews |
ร**Z
๐ช
Bena calidad
J**.
good buy.
got what they promised .
G**E
Diode's were a little one way
Nice project assortment
T**M
Got what I needed
Received what I ordered. No issues although I am not an electrician. I only needed one part out of it and it worked fine.
N**R
High quantity low quality
Plastic storage container wonโt stay shut after opening and there isnโt much for dividers so the whole thing is just a jumbled up mess with out a closing lids kinda frustrating
A**O
Ok
Ok
H**K
Keeping them handy in case of a lighting strike.
I live off-grid in an Arched cabin that is solar powered. During the summer monsoon season, we can have some wicked lightning storms. My cabin has been hit once already. Fortunately, my solar panels were not damaged. When solar panels are hit by lightning, the most common failure is shorting of the internal Schottky blocking diodes inside the little black box on the back of the solar panel. I ordered these Tnisesm 20A, 50V Schottky diodes to keep on hand in case my panels should be damaged by a lightning strike in the future. Having spares on hand will allow me to get my solar array operational again with little down-time. I tested all 20 diodes with a transistor/diode tester. They all tested well within published tolerances.
U**O
Low forward biased voltage drop.
Tested all 20 pieces with forward conduction and reverse block, as required. Forward voltage drop was between 100 and 192 millivolts when tested with diode test function on a multimeter. Germanium / Shottky type diodes usually 200mv (0.2v) or less per design. Silicon diodes are designed for a 700mv forward voltage drop when conducting. These will be used in a a12V automotive application to block reverse voltage from auxiliary circuits from back-powering existing circuits. Lighting and signaling circuits and relay control will not exceed published ratings.
C**N
la qualitรฉ
bon
F**S
Good product
Works fine
D**E
Works as expected
Used to modify ATV headlight so that high and low beams activate at the same time. Was easy to solder, works as expected.
R**E
Super
Tres satisfait merci
C**N
All good
No real problems with the first few I implement.
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