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#howtotest #schottky #rectifier #STPS3045 #shorts. i explained how to test common cathode power schottky rectifier using digital multimeter.
o test a Schottky rectifier (Schottky diode) using a digital multimeter (DMM), follow these steps:

1. Set the Multimeter to Diode Mode
Turn the dial to the diode test mode (🔼 or "Diode" symbol).
If your multimeter doesn’t have a diode mode, use the resistance (Ω) mode instead.
2. Identify the Terminals
Schottky diodes have anode (+) and cathode (-) terminals.
The cathode is usually marked with a band or stripe.
3. Forward Bias Test (Anode to Cathode)
Connect the red (positive) probe to the anode (+).
Connect the black (negative) probe to the cathode (-).
A working Schottky diode should show a low voltage drop (typically 0.15V to 0.45V).
4. Reverse Bias Test (Cathode to Anode)
Reverse the probes (red to cathode, black to anode).
The multimeter should display OL (Open Loop) or no continuity, indicating a high resistance.
5. If Both Readings Show Low Resistance
The diode is shorted (bad).
6. If Both Readings Show OL (Open Circuit)
The diode is open (damaged).

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