Replacing PFF4N80 with FQPF4N80
Hello everyone, can someone tell me if I can replace the PFF4N80 with FQPF4N80? Both are built on TO-220FP packages and there are minor differences like Drain source on resistance, Drain current, Power Dissipation etc, help
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it always depends on the circuit you're replacing it in... if it's minor, chances are it will work however. usually circuits are designed with some component tolerances in mind. -
How comparable are the turn-on, and turn-off times and the input capacitance? Those may also be critical parameters.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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Just wondering if anybody has seen this issue. I'm assuming that all of the CD3217's are semi functional for the chips to request 20V from the PSU.
This unit had some soda spattered up into the side vent. I ultrasonic cleaned the board, now getting this weird sometimes requesting 20V behavior, then it goes back to 5.2V ~ 25mA The U3200 jack cycles.
I'm hoping this is just an issue with some components between the TOP Jack and U3100 and not U3100 itself.
Not seeing anything unusual on thermals just some of the power supply inductors getting warm when it's requesting...Yesterday, 01:13 PM -
Hello guys,
I have a shorted MOSFET K8A60DA with the following characteristics:
Type Designator: TK8A60DA
Marking Code: K8A60DA
Type of Transistor: MOSFET
Type of Control Channel: N -Channel
Maximum Power Dissipation (Pd): 45 W
Maximum Drain-Source Voltage |Vds|: 600 V
Maximum Gate-Source Voltage |Vgs|: 30 V
Maximum Gate-Threshold Voltage |Vgs(th)|: 4 V
Maximum Drain Current |Id|: 7.5 A
Maximum Junction Temperature (Tj): 150 °C
Total Gate Charge (Qg): 20 nC
Rise Time (tr): 25 nS
Drain-Source... -
Hi everyone, I am hoping for a little help with an HP 250 G5 with motherboard LA-D704P with a Core i7-6500U. I am new to board repair but keen to learn.
I am sorry this post is quite long but I was trying to systematically work my way through things.
I don't know the history of the board – I bought it as part of a job lot.
I have attached a number of photos of both sides of the board. I cannot seem to find a schematic or boardview online.
When plugged in to DC power the power LED lights and the battery seems to charge. It will not... -
First of all, I'd like to mention that I'm a novice when it comes to laptop repair, although I do have some experience with soldering.
One day, my laptop experienced a severe stutter, and after rebooting, it failed to boot into Windows. I decided to disassemble it and found that the PL900 component was blown. Later, I came across a post (https://www.badcaps.net/forum/troubl...error%E2%80%99) with the same problem, where...08-30-2024, 06:13 AM -
Hello good people, can someone tell me if these two (PFF4N80 and SSP4N80) are interchangeable? I have the PFF4N80 blown up an I can't find it nowhere than buying it online if I must buy it, then I will do it when it's really necessary, but first please do help me
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