2SC458 DATASHEET PDF

2SC datasheet, 2SC circuit, 2SC data sheet: HITACHI – Silicon NPN Epitaxial,alldatasheet, datasheet, Datasheet search site for Electronic. 2SC Datasheet, 2SC NPN Low Frequency Transistor, buy 2SC Transistor. ST 2SC NPN Silicon Epitaxial Planar Transistor. Low frequency amplifier applications. The transistor is subdivided into three group, B, C and. D according to.

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It looks like a direct drop in.

2sc458, 2sc2240 Clarification please

A few years ago, “new generation” 2SC’s began appearing. Now I’m just waiting for my caps to arrive so I can breath more solder fumes. Sorry it’s hard to describe, but in a way, they do go in backwards sort of. Yankee DogMar 16, You must log in or sign datasueet to reply here. I assume that as long as I pay attention to E C B, it will keep me out of trouble like when installing the 2sc when I install the 2sc The original 2SC was made by Hitachi, and installed in a funny-looking rectangular package with a little “roof” on the top that slopes down from front to back.

Is that what you mean by “Some new-production 2SC’s have the same basing as the 2SC, but those new devices are not installed in vintage gear”? Your name or email address: These were based BCE reading left to right. Datashdet are working and sounding fine.

What about the data sheets I have posted? They simply aren’t to be trusted.

The post was made by someone who is well respected and very experienced in this forum, so this is my reasoning for questioning what I have found in the data sheets. I replace them wherever I find them. Valley of Heart’s Delight. EchoWarsMar 2ec458, The 2sc’s arrived today and they are installed. I found a few in my X John. I read a thread on this forum that stated something to the effect that the 2sc has “opposite basing” than the 2sc I would never stick it in a low-noise 2xc458.

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I chose it because in datasjeet spec manual it was called out as a low-noice small-signal device with a bandwidth not dissimilar to the 2SC, and because the 2SC was used in many machines I encountered — and the device never seemed to fail. In transistor selection, like many other aspects of electronics, the devil is in the details. I understand now why I was confused on how to place the transistors. I’m trying to buy some 2SC transistors from Digikey or Mouser, but am not having any success at all with this part number to replace my 2SCs can anyone recommend an alternate, or, better still the correct Digikey part?

HyperionMar 17, I used BC as 2c458 replacement in my X – they work just fine. No, create an account now. I did pay attention to the circuit board with the location of E C B and put the legs of the 2sc in the apropriate holes, and unit is working fine, but, it looks like I’ll be pulling them. Try the 2SCs you have.

2sc, 2sc Clarification please | Audiokarma Home Audio Stereo Discussion Forums

Luckily the board was labelled E C B so I just installed them keeping track of that. Trannys are in 2sc and it sounds a little sharper, and clearer if that means anything.

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I consider many of these “new 2SC’s” to be counterfeits, i. AndymanJan 4, On the other side the trannys are basically a mirror of the first side preamp board. Yankee DogMar 17, The issue here is not so much the noise level of the transistor, but the fact they need to be matched to each other in this situation.

Yankee DogMar 14, At the time of manufacture, these were considered an excellent choice for a low-noise, small-signal datasyeet — and were used widely.

Log in or Sign up. Fred, thanks for the detailed information. Yankee DogMar 15, To me it looks like they are the same. Hyperion 2sf458, Mar 18, So, should 2SC’s of any age be replaced anywhere they are found?

Thank you for the update – I found 2 – they looked so odd I checked up on them – particularly here on AK, and found them pretty much regarded as the spawn of the devil himself. Am I hearing more separation or is just 2s4c58 of less noise?

2SC458 Datasheet, Equivalent, Cross Reference Search

It has a kind of a flat taper on both sides, and printing on both sides, thanks YD. Unfortunately, they began to leak and generate noise and operating-point errors. OK, so I am going to replace the leaky 2sc 6 of them in my when the new trannys arrive next.