IRF640 | Amplifier Circuit, Pinout, Equivalent, Transistor

IRF640 transistor, Utsource

IRF640 Pinout Equivalent

irf640 pinout Picture

The IRF640 is an N-channel power MOSFET (fifth generation HEXFET power MOSFET) produced by International Rectifier Corporation, which is widely used by electronic engineers in the design of switching power supplies, protection circuits and power amplification circuits. Its main advantages are high voltage resistance, low on-resistance and good switching characteristics, and IRF640 is very popular in power electronics design. In some cases, we may need to look for an alternative model. Therefore, this article will introduce the pin function of IRF640 and give some alternative selection.
Important parameters:
Maximum withstand voltage: 200V;
Can withstand continuous current: 18A;
The on-resistance is 0.18
On-voltage: 2~4V;
Package as: TO-220;

IRF640 Pin Menu:

Alternative product model list:

Picture	Name	Type	Vdss	Vgs(th)	Id	Pd	Package
	IRF640N	N-MOSFET	200V	4V	18A	150W	TO-220
	SVD640T	N-MOSFET	200V	2V	18A	150W	TO-220
	NCE0224K	N-MOSFET	200V	4V	24A	150W	TO-252-2
	IRFP240PBF	N-MOSFET	200V	2V	20A	150W	TO-247AC
	IRF640NPBF	N-MOSFET	200V	2V	18A	150W	TO-220AB

Vicarious considerations

When choosing an alternative model, there are two things to note:
1 Pin compatibility: Ensure that the selected model is exactly the same as the IRF640 (different is also OK, but to redesign the PCB);
2 Limit voltage value and current size: to choose the appropriate voltage and current value, to avoid insufficient damage to the circuit;