HOW TO MEASURE MOSFET / IRF

FET physical form such as transistors. Its function is to increase the voltage or lower voltage.
FET also has three legs namely:

• GATE (G) ie input leg
• DRAIN (D) that is the output foot
• SOURCE (S) ie foot sources

Its function is commonly used in type switching power supply circuit to produce a high voltage to drive the transformer.

His legs are generally sure that when we are faced with FET in our direction then the order in his legs from left to right they GATE, DRAIN, SOURCE.

• Suppose a step-up voltage FET: K 793, K 1117, K 1214, IRF 630, 730 IRF, IRF 620, and others.
• Eg FET lowering voltage: IRF 9610, IRF 9630, and others (generally 4 digits u / IRF)

• FET riser VOLTAGE
Step measure:
Limit measure Ohmmeter X10 / X1K


Probe black => S
Probe red     => D multi needle indicates a value

Probe red     => S
Probe black => D multi needle does not indicate a value

Probe red     => S
Probe black => G needle multi not indicate a value

Probe red    => S
Probe black => D jarm multi indicating a value

Probe black => D
Probe red    => G needle multi not indicate a value

Probe red    => S
Probe black =>D multi needle does not indicate a value

- FET VOLTAGE LOWERING • How to measure:
Limit measure Ohmmeter X10 / X1K

Probe red     => S
Probe black => D multi needle indicates a value


Probe black => S
Probe red    => D needle does not indicate a value


Probe black => S
Probe red    => G needle multi not indicate a value


Probe black => S
Probe red    => D multi needle indicates a value


Probe red     => D
Probe black => G needle multi not indicate a value


Probe black => S
Probe red    => D multi needle does not indicate a value


For details you see video below  :


                                                     Video

                                                     Video

I hope this can help you in measuring mosfet / IRF