What is diode M7?

What is diode M7?

The M7(1N4007) Diode is a M7 Surface Mount General Rectifier and has a Plastic Passivation Junction Reverse Voltage of 50 to 1000 Volts with Forward Current of 1.0 Ampere.

What do the numbers on a diode mean?

Thus 1 designates a diode; 2 designates a transistor (which may be considered as made up of two diodes); and 3 designates a tetrode (a four-element transistor). The letter “N” following the first number indicates a semiconductor. The 2- or 3-digit number following the letter “N” is a serialized identification number.

How do you decode a diode?

The “1” identifies the component as a diode. The “N” shows the material in the device is a semiconductor. Decode the model code. The number after the diode and material-designation codes is the model or part number.

What is a MELF diode?

Metal electrode leadless face (MELF) is a type of leadless cylindrical electronic surface mount device that is metallized at its ends. MELF devices are usually diodes and resistors.

How do you read a diode value?

Diode Mode Testing Procedure Connect the red probe of the multimeter to the anode and black probe to the cathode. This means the diode is forward-biased. Observe the reading on multimeter’s display. If the displayed voltage value is in between 0.6 to 0.7 (for a Silicon Diode), then the diode is healthy and perfect.

How do you read a diode?

Look for the marking – a colored stripe – on the diode or resistor that indicates which way the current flows. The power flows from the end without the stripe to the end with the stripe. Hold the resistor or diode with the stripes to the left. Read the first three stripes to find the capacity (ohms).

What does Melf stand for?


Acronym Definition
MELF Middle East Land Forces
MELF Machinery and Equipment Loan Fund (Pennsylvania Department of Community and Economic Development)
MELF Metal Electrode Leadless Face (electronics)
MELF Micro-Enterprise Loan Fund (various locations)

When would you use a MELF resistor?

MELF, Metal Electrode Leadless Face resistors are used where higher reliability and performance than that provided by normal SMT resistors are needed.

How do you identify a diode marking?

Diode Polarity The polarity of both diodes is indicated with a stripe on one end of the body. The stripe corresponds to the line in the schematic symbol, indicating the cathode. The other end (no stripe) is the anode, indicated by the triangle in the schematic symbol.