does this board have a "flyback diode" or a "back emf diode" which goes from pin 2 to pin 3 (across load , between source and drain on the mosfer?

It doesn't look like it. It looks like the board only has the mosfet, 2 resistors and an LED to indicate when it's on.

Data sheet for irf520 shows vds max 100v. here it mentioned 24v, can i use this module load for 48v @ 1amp

Hi. Have not tried this but there are issues I am aware of. When you turn this thing off, the current can induce a voltage in the gate and blow this up. If you are not cool with this electronics, or if you cannot afford to waste a IRF or two, don't try it out. With the right kind of protection and all, the transistor can probably run very close to the limits, but if you misread, or misunderstand, the limits can bite you hard. Power electronics is very cool stuff, but not for the faint of heart. Seriously, hearing your transistor pop so hard it blasts a neat little hole in the top of the transistor pack has got to suck.

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0-24V Top Mosfet Button IRF520 MOS Driver Module for Arduino MCU ARM Raspberry pi

0-24V Top Mosfet Button IRF520 MOS Driver Module for Arduino MCU ARM Raspberry pi

产品编号: 422616042

细节

Colour
Red
Brand
Onyehn
Voltage
24 Volts
Material
Copper
Item weight
0.2 Kilograms

⚡0-24V adjustable output

🔄PWM stepless dimming & speed control

🛠️<5A max load current

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描述

⚡ Drive Innovation, Dim the Limits!

COMPACT YET ROBUST - Small 33.4 x 25.6mm footprint with durable copper construction
BROAD COMPATIBILITY - Works flawlessly with Arduino, MCU, ARM, and Raspberry Pi platforms
READY FOR HIGH PERFORMANCE - Handles loads up to 5A, with heat sink option for extended use
SMOOTH CONTROL AT YOUR FINGERTIPS - PWM adjustable for seamless LED dimming and motor speed regulation
POWER YOUR PROJECTS WITH PRECISION - Supports up to 24V output for versatile device control

The IRF520 MOSFET Driver Module empowers makers and professionals to control loads from 0 to 24V with up to 5A current, featuring PWM stepless dimming and speed regulation. Compatible with popular platforms like Arduino and Raspberry Pi, its compact design and reliable copper build make it an essential tool for advanced DIY electronics and prototyping.

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