need transistor equivalent book ....

[A square]

hello

i need transistor equivalent books pls help me ......

 

[Mooly]

The web has made these kind of obsolete in a way, although they are still available.
Free data sheets here,
Datasheet catalog for integrated circuits, diodes, triacs, and other semiconductors, view

Are you looking for a specific item to replace ?

International Transistor Selector: Update 5: Amazon.co.uk: T.D. Towers, Anthony Cawkwell: Books

which I see is out of stock... no one uses them anymore 🙂

 

[A square]

hi

hello sir
in my amp i use 2sa1943&2sc5200 .i want to make my amp more powerful so i am founding any replace for them.....

 

[Mooly]

Hi,
We would need a lot more info than that. The power of an amp is determined primarily by it's power supply, and the load impedance it works into. The heatsinking arrangements are of vital importance too.

Just replacing transistors won't in itself make the amp more powerful unless the above are also altered... there's a lot more to it than that.

What's the amp in question anyway ?

 

[goodknight10]

Hi, looks like no one has a transistor replacement guide that can be viewed or purchased. I too need to find a replacement for a transistor in my Marantz SR4000. The transistors are: 2SC2634 or 2SC945. I have tried at Mouser and Digikey without success. These transistors are in the speaker protection relay circuit. Would really appreciate any help.

 

[cicero32]

Transistors equivalences

Hi, looks like no one has a transistor replacement guide that can be viewed or purchased. I too need to find a replacement for a transistor in my Marantz SR4000. The transistors are: 2SC2634 or 2SC945. I have tried at Mouser and Digikey without success. These transistors are in the speaker protection relay circuit. Would really appreciate any help.

Replacemente for 2SC945 = BF181 (PHILIPS) - (BFX59) (SIEMENS) BC182L (EURO) 2N5209 (USA) PARAMETERS = Vcb 50V; Vce 40v; Veb 5V ; Ic 100mA; PTot 250mW (All param. are Max Values). Hfe 75 min. @ 1Ma

for 2SC2634 sorry not equivalent param. are Vcb 60V; Vce 50V; Veb 7v; Ic 100mA ; PTot. 400 mW ; (All param. are Max Values) Hfe 180 min @ 2mA Both are NPN Transistors in TO92 case.
Ciao🙂

 

[DF96]

Is this the best forum area for a thread about transistor replacements?

 

[Mooly]

Is this the best forum area for a thread about transistor replacements?

Nope 🙂

'tis an old thread. Now in parts.

 

[cicero32]

Pardon me

Is this the best forum area for a thread about transistor replacements?

I'm sorry, it's my fault! I only tried to help a friend in need!🙁

 

[Mooly]

I'm sorry, it's my fault! I only tried to help a friend in need!🙁

Your fault ? How so 🙂 The thread was already here so you did nothing wrong by replying to a question.

 

[Refugee1]

Here in the UK we use this site for all kinds of transistor data and substitutes.
All Transistors Datasheet. Parameters and Characteristics. Transistor Database.

 

[nigelwright7557]

If I want to replace a transistor I use RS Components | Electronic and Electrical Components
or Farnell element14 UK - Electronic Components Distributor
I put in the specs for the transistors I want and see what it comes up with.

 

[DF96]

I'm sorry, it's my fault!

Not at all! It was the Mods back in 2010 who somehow forgot to move it then.