cross-referencing transistors - diyAudio
Go Back   Home > Forums > Design & Build > Parts
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 19th July 2007, 01:55 PM   #1
jarthel is offline jarthel  Australia
diyAudio Member
Join Date: Jan 2002
Location: somewhere in Australia
Default cross-referencing transistors

When searching mouser catalog, it also suggest supposedly equivalent parts.

For example: I was searching for "IRF9Z34" and I got "SFP9Z34" which is a Fairchild equivalent part. This is probably right by looking at the part number. there are very similar.

Fairchild's website has an equivalent part search. When I put in "IRF9Z34", the results gave me "FQP17P06" as a "drop-in" replacement.

My question is: Who do I trust? Is there an authoritative website?

for tubes, Frank and TDSL can suggest equivalent and near-equivalent tubes. Is there something similar for semiconductors specifically transistors?

Thank you very much
  Reply With Quote
Old 19th July 2007, 02:11 PM   #2
diyAudio Member
Join Date: Mar 2007
Location: Canandaigua, NY USA
Trust no one, the truth is *not* out there. Always get a datasheet for both parts and compare relevant specs and pinouts. Semiconductor substitution depends on the application, so any factory lists are just a guess, except for the cases where a part is a true "second source", carries a similar part number, and the specs are basically identical. Even "improved" parts can cause problems if the BW has been increased or the Hfe is way better, since a given design might no longer be stable.
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Marantz 4270 output transistors. Best cross The Donk! Solid State 4 25th February 2008 10:06 PM
Referencing DC heaters to cathode cbutterworth Tubes / Valves 31 3rd October 2007 10:16 PM
referencing DC heater to B+ jarthel Tubes / Valves 4 28th March 2007 02:43 AM
referencing heater supply ground to B+ jarthel Tubes / Valves 2 14th March 2007 07:39 PM
Cross referencing Toshiba transistors Stuey Parts 11 18th February 2007 01:01 PM

New To Site? Need Help?

All times are GMT. The time now is 12:47 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2