Multimeter Tutorial: How to Test a Diode

Here are the steps for testing diode : How to Test a Diode

Step 1: Understanding Diode

Diode has two terminals Anode (+) and Cathode (-). Terminals can be identified by the shaded portion at the end of the diode. Terminal near the shaded portion is Cathode (-) and other one is anode (+).

Diode can be tested with the help of Diode function of the multimeter

[tie_slideshow]

[tie_slide] Multimeter Tutorial: How to Test LED [/tie_slide]

[tie_slide] Multimeter Tutorial: How to Test a Transistor [/tie_slide]

[tie_slide] Multimeter Tutorial: How to Test and Measure Resistance [/tie_slide]

[/tie_slideshow]

Step 2: DMM Connection

• Power ON the multimeter
• Turn the knob towards the “Diode Function”
• The Digital Meter will show no reading as there are no terminals connected.

Step 3:Testing Leads Connection        

• Connect the leads in forward biasing i.e. Positive to the Anode and Negative to the Cathode.
• Connections should be tight and neat
• After connecting note down the reading

[ads1]

How to Test a Diode using Multimeter

The multimeter will show theforward voltage drop between the two testing leads.