Author Topic: Differences with AliExpress irfp460  (Read 478 times)

Offline oneKone

  • High Voltage Engineer
  • ****
  • Posts: 282
  • Karma: +7/-0
    • View Profile
Differences with AliExpress irfp460
« on: April 30, 2019, 08:16:20 AM »
In my absence form drsstc I've been getting into standard sstc and flyback drivers. This lead me to try different vendors on AliExpress for MOSFETs.  So far I've tried 3 different vendors with mixed results. All tests are 20v at the gate.
Type 1: tested upto 1.7kw (dual h-bridge), 1kw dual half bridge
Type 2: failed at 1kw dual half bride. Smaller die size is the suspect
Type 3: completely useless, appears to have smaller package in silicon.

Pictures are in order type 1-3





(ATM this post may seem fragmented, will update tonight)
« Last Edit: May 03, 2019, 05:33:40 AM by oneKone »

Online Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1179
  • Karma: +17/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: Differences with AliExpress irfp460
« Reply #1 on: May 02, 2019, 10:01:14 PM »
How did the packages, writing on them, etc. compare to the official specifications of this from the original manufacturers? If you checked that of-cause :)

Is it possible to get your money back from aliexpress when you discover something like this, where it obviously is fakes?

Was it from 3 different sellers? Or can you also risk getting both good and bad ones from same sellers?
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics

Offline oneKone

  • High Voltage Engineer
  • ****
  • Posts: 282
  • Karma: +7/-0
    • View Profile
Re: Differences with AliExpress irfp460
« Reply #2 on: May 03, 2019, 01:32:18 AM »
The external markings are different from one another but I am unsure how they compare to an original 460, I'll upload some pictures tonight.

It is possible to get money back, if you supply sufficient evidence, but they were so cheap it's not worth my time emailing back and forward.

The 3 samples have been from 3 different sellers, I can post the sellers correspondence to the samples I have.
« Last Edit: May 03, 2019, 05:36:23 AM by oneKone »

High Voltage Forum

Re: Differences with AliExpress irfp460
« Reply #2 on: May 03, 2019, 01:32:18 AM »

 


* Recent Topics and Posts

post Re: Duty cycle when driving a CRT TV flyback transformer
[Transformer (ferrite core)]
John123
Today at 03:35:40 PM
post Re: Why did 4HV die??
[General chatting]
John123
Today at 03:21:07 PM
post Re: Duty cycle when driving a CRT TV flyback transformer
[Transformer (ferrite core)]
Mads Barnkob
Today at 03:04:28 PM
post Re: Duty cycle when driving a CRT TV flyback transformer
[Transformer (ferrite core)]
John123
Today at 02:57:45 PM
post Re: Possible use for large inductor (laminated core)
[Transformer (iron core)]
kamelryttarn
Today at 11:23:48 AM
post Re: SGTC MK1 - An Accomplishment in Progress
[Spark gap Tesla coils]
Mads Barnkob
Today at 10:27:54 AM
post Re: Worlds Weirdest Microwave Oven, From A Weapons Factory - The Husqvarna Cupol
[Transformer (iron core)]
Mads Barnkob
Today at 10:20:17 AM
post Re: Possible use for large inductor (laminated core)
[Transformer (iron core)]
Mads Barnkob
Today at 10:16:32 AM
post Re: SGTC MK1 - An Accomplishment in Progress
[Spark gap Tesla coils]
davekni
Today at 06:04:28 AM
post Re: Duty cycle when driving a CRT TV flyback transformer
[Transformer (ferrite core)]
davekni
Today at 05:28:54 AM
post Re: Possible use for large inductor (laminated core)
[Transformer (iron core)]
davekni
Today at 04:12:29 AM
post Duty cycle when driving a CRT TV flyback transformer
[Transformer (ferrite core)]
John123
December 09, 2019, 10:52:59 PM
post Replacement guide for Windows Media Center
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
MRMILSTAR
December 09, 2019, 08:29:16 PM
post Re: Sense coil fabrication?
[Induction launchers, coil guns and rails guns]
Uspring
December 09, 2019, 04:23:33 PM
post Re: Possible use for large inductor (laminated core)
[Transformer (iron core)]
MRMILSTAR
December 09, 2019, 03:59:02 PM
post Re: SGTC MK1 - An Accomplishment in Progress
[Spark gap Tesla coils]
jturnerkc
December 09, 2019, 03:41:42 PM
post Possible use for large inductor (laminated core)
[Transformer (iron core)]
kamelryttarn
December 09, 2019, 09:43:11 AM
post Re: SGTC MK1 - An Accomplishment in Progress
[Spark gap Tesla coils]
davekni
December 09, 2019, 12:53:57 AM
post Re: CW multiplier resistor string suggestions
[Voltage Multipliers]
davekni
December 08, 2019, 09:57:51 PM
post Re: CW multiplier resistor string suggestions
[Voltage Multipliers]
MRMILSTAR
December 08, 2019, 05:28:09 PM
post Aethra CCD Webcam Teardown - From Back When Streaming Was Expensive!
[Electronic circuits]
Mads Barnkob
December 08, 2019, 01:33:30 PM
post Platter resistance & inductance
[Induction launchers, coil guns and rails guns]
klugesmith
December 08, 2019, 11:41:00 AM
post Re: CW multiplier resistor string suggestions
[Voltage Multipliers]
davekni
December 08, 2019, 06:50:11 AM
post Re: CW multiplier resistor string suggestions
[Voltage Multipliers]
plasma
December 08, 2019, 12:00:00 AM
post CW multiplier resistor string suggestions
[Voltage Multipliers]
MRMILSTAR
December 07, 2019, 11:32:49 PM
post Re: Sense coil fabrication?
[Induction launchers, coil guns and rails guns]
klugesmith
December 07, 2019, 09:54:31 PM
post Re: SGTC MK1 - An Accomplishment in Progress
[Spark gap Tesla coils]
jturnerkc
December 07, 2019, 09:48:21 PM
post Re: Sense coil fabrication?
[Induction launchers, coil guns and rails guns]
klugesmith
December 07, 2019, 08:59:57 PM
post Re: Cost reduction in consumer electrics
[Electronic circuits]
MRMILSTAR
December 06, 2019, 08:35:29 PM
post Re: Full bridge showing half the voltage
[Beginners]
plasma
December 06, 2019, 05:19:26 AM
post Re: Cost reduction in consumer electrics
[Electronic circuits]
davekni
December 06, 2019, 03:48:34 AM
post Re: Cost reduction in consumer electrics
[Electronic circuits]
the_anomaly
December 06, 2019, 03:35:39 AM
post Re: Welcome new members, come say hello and tell a little about yourself :)
[General chatting]
AstRii
December 06, 2019, 01:27:03 AM
post Re: Full bridge showing half the voltage
[Beginners]
plasma
December 05, 2019, 11:38:59 PM
post Re: Cost reduction in consumer electrics
[Electronic circuits]
Mads Barnkob
December 05, 2019, 07:33:01 PM
post Re: Cost reduction in consumer electrics
[Electronic circuits]
sjsimmo
December 05, 2019, 11:09:20 AM
post Cost reduction in consumer electrics
[Electronic circuits]
klugesmith
December 05, 2019, 07:25:20 AM
post Re: HV resistor in oil
[Voltage Multipliers]
MRMILSTAR
December 05, 2019, 05:52:11 AM
post Re: HV resistor in oil
[Voltage Multipliers]
davekni
December 05, 2019, 05:21:07 AM
post Re: HV resistor in oil
[Voltage Multipliers]
MRMILSTAR
December 04, 2019, 06:05:11 PM
post Re: Full bridge showing half the voltage
[Beginners]
shrad
December 04, 2019, 02:57:02 PM
post Re: Sense coil fabrication?
[Induction launchers, coil guns and rails guns]
Uspring
December 04, 2019, 12:40:51 PM
post Re: Full bridge showing half the voltage
[Beginners]
plasma
December 04, 2019, 11:20:25 AM
post Re: Sense coil fabrication?
[Induction launchers, coil guns and rails guns]
klugesmith
December 04, 2019, 08:28:15 AM
post Re: Full bridge showing half the voltage
[Beginners]
klugesmith
December 04, 2019, 07:41:21 AM
post Re: Sense coil fabrication?
[Induction launchers, coil guns and rails guns]
MRMILSTAR
December 04, 2019, 05:15:49 AM
post Re: HV resistor in oil
[Voltage Multipliers]
MRMILSTAR
December 04, 2019, 05:06:39 AM
post Re: HV resistor in oil
[Voltage Multipliers]
davekni
December 04, 2019, 04:31:16 AM
post Re: Full bridge showing half the voltage
[Beginners]
davekni
December 04, 2019, 04:26:38 AM
post Re: Sense coil fabrication?
[Induction launchers, coil guns and rails guns]
klugesmith
December 04, 2019, 04:10:16 AM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30