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Old 7th March 2003, 01:26 AM   #1
Diode is offline Diode  United States
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Default 2SA1302 and 2SC3281

Where is a good supplier of these parts. Cost is an issue so I'm looking for cheap as well.

What can I use instead of these? Flatpacks please. I'm trying to steer away from TO-3's if possible.

Thanks in advance,

Chris
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Old 7th March 2003, 01:31 AM   #2
OliverD is offline OliverD  Germany
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As those parts are out of production, it is likely you will get counterfeits - especially from a cheap source. In most applications, the 2SA1943 and 2SC5200 are a direct replacement from Toshiba with very similar specs.

Toshiba power BJTs are available from digikey for reasonable prices.
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Old 7th March 2003, 01:40 AM   #3
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Default Watch for fakes...

Hi Chris,

Toshiba stopped producing these some 2 years (at least) ago. The replacements from Toshiba are the 2SA1943 and 2SC5200.

You could you equivalent MJL parts (MJL-1302 and MJL-3281) or even the MJL21193/4 parts. These are sampling at www.on-semi.com if you wish to go that route. Also, www.audiochips.net has the MJL chips in matched pairs for $12 a pair I believe.

I have been stung by fake output transistors building a P68 Sub amp of Rod Elliott design. My report of the amp is here . You should be able to click through from their for pics of my fake transistors (Go through the Electronics link).

Cheers,
Jonathan
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Old 7th March 2003, 02:39 AM   #4
sam9 is offline sam9  United States
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Default matched pairs

I believe www.sealelectronics.con still sells some matched pairs. There is a premium, but it beats buying more than you need and matching them yourself.
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Old 7th March 2003, 05:13 AM   #5
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Try at Allied

MJL1302A - $3.3500
MJL3281A - $2.9800

MJL21193 - $3.9000
MJL21194 - $3.9000
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Old 7th March 2003, 06:40 AM   #6
Dave is offline Dave  New Zealand
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Digi-key are well priced as far as I know and I'd be very very surprised if they sold fake devices.
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Old 8th March 2003, 12:45 AM   #7
Diode is offline Diode  United States
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Thank you everyone for the help!!!! It's so nice as I have been extremely frusterated trying to get these parts.

Chris
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Old 10th March 2003, 04:28 PM   #8
saurus is offline saurus  United States
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I got my MJL1302A/3281A's from Newark and they work fine.
The free samples from OnSemi are the way to go, but sometimes they are backordered and you don't get them for weeks.
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Old 10th March 2003, 04:35 PM   #9
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I am surprised that no one here pointed out that the MJL21193/ MJL21194 are not electrical equivalents of MJL3281/MJL1302 as are the upgraded versions viz., 2SC5200/2SA1943.
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Old 10th March 2003, 06:15 PM   #10
PMA is offline PMA  Europe
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Default 2SA1302/2SC3281

Use 2SA1943/2SC5200 instead of them, you will avoid the danger of clones.
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