1N4007 diode has a cathode (-) and anode (+). In the schematic symbol, the tip of the triangle with the line on top of it is the cathode. The cathode is marked on the body of a diode by a band as shown below.

Diode polarity Current can flow from the anode to the cathode only and never from the cathode to the anode – 1N4007 diode is like a one way valve.

SPECIFICATION :
- Maximum Recurrent Peak Reverse Voltage – 1000 V
- Maximum Average Forward Output Current – 1 A
- Maximum Forward Voltage Drop per element at 1.0A DC – 1.1 V
- Typical Junction Capacitance – 15 pF
- Package – DO-41
- Weight – 0.33 grams
- Operating and Storage Temperature Range – (– 65 to +175 °C)
1N4007 is a general purpose rectifier diode that can be used in a variety of applications. It has a maximum current rating of 1 amp and a maximum reverse voltage rating of 1000 volts. If you are looking for a reliable and inexpensive general-purpose rectifier diode, the 1N4007 is a great option.
ZOHAIB SALEEM (verified owner) –