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BUH150  obsolete replacement wanted -  Class AB Mosfet  Amplifier 1750W RMS
BUH150  obsolete replacement wanted -  Class AB Mosfet  Amplifier 1750W RMS
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Old 21st August 2019, 10:19 AM   #1
NMOS is offline NMOS  Germany
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Default BUH150 obsolete replacement wanted - Class AB Mosfet Amplifier 1750W RMS

Hi


Problem BUH 150 Transistor is obsolete, cant find replacement

Ecler PAM6100 Swithcing Power Mosfet PA Class AB Mosfet Amplifier

BUH150: 15 AMPERES 700 VOLTS, 150 WATTS

BUH 150 Transistor working as Buffer in PA Mosfet Amplifier to drive IRFP360 Mosfet Array

look schematic


Its N a Channel PA Mosfet Amplifier Rail 140 +/- DC

Class AB 1750W RMS Output Power 4 Ohm

I dont understand the secret why using BUH150 with MJE15031 in Buffer stage,

I dont understand why amplifier not using 2 x MJE instead of BUH150

MJE15034 / 15035 or MJE E15032/ 15033 shuld work too
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Old 21st August 2019, 10:21 AM   #2
NMOS is offline NMOS  Germany
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The Amplifier have NE5534a input op amp and Wilson current mirror
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Old 21st August 2019, 10:42 AM   #3
KatieandDad is offline KatieandDad  United Kingdom
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LittleDiode – Electronic Components for All


You can still get BUH150 from LittleDiode – Electronic Components for All
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Old 21st August 2019, 01:36 PM   #4
anti is offline anti  Slovakia
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The BUH is a "buffer", the MJE is used to speed up mosfets' gate-discharge, ok that's obvious ... perhaps the BUH part has some desirable characteristics that the MJE parts don't have ...?
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Old 21st August 2019, 02:56 PM   #5
NMOS is offline NMOS  Germany
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Quote:
Originally Posted by KatieandDad View Post
Yes thanks for Info, but price is jeavy for old stock.

Is there no replacemnet siimilar transistor for BUH150 available ?
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