Help please

cla6665 · 23rd January 2009, 06:36 PM

Hi there, I am looking in to replacing the power transistor on a vintage Marantz receiver(4270). I can't find the original ones ( they are Hitachi 2SC897B). Does anybody know where I can find them or what would be a good replacement.
Thank you very much

lineup · 23rd January 2009, 08:18 PM

Quote:

2SC897
Si NPN Power BJT

V(BR)CEO (V)=90
V(BR)CBO (V)=150
I(C) Abs.(A) Collector Current=7.0
Absolute Max. Power Diss. (W)=60
I(CBO) Max. (A)=1.0m
h(FE) Min. Static Current Gain=25
h(FE) Max. Current gain.=200
@I(C) (A) (Test Condition)=1.0
@V(CE) (V) (Test Condition)=5.0
f(T) Min. (Hz) Transition Freq=15M
Package=TO-3

According to Transistor Substitution Data Book 1993
drop in replacements can be: 2SD427 or 2SD895

This is where I did my search: http://www.datasheetarchive.com
using this link
http://www.datasheetarchive.com/2sc8...datasheet.html

23rd January 2009, 06:36 PM	#1
cla6665 diyAudio Member Join Date: Jan 2009	Help please Hi there, I am looking in to replacing the power transistor on a vintage Marantz receiver(4270). I can't find the original ones ( they are Hitachi 2SC897B). Does anybody know where I can find them or what would be a good replacement. Thank you very much

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