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Please help ID component TFK517

 
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tux



Joined: 20 Jun 2006
Posts: 5

PostPosted: Mon Aug 02, 2010 11:00 pm    Post subject: Please help ID component TFK517 Reply with quote

Hi all

Can anyone provide more info on a semiconductor with casing T220, 3 pin (looks like a power transistor/SCR etc) and marked as TFK517.

This belongs on a power supply and motor control board for a Bernina 1080 sewing machine.

I have the service manuals but of no use as they contain no electrical schematics and all they say is "Replace Board"

Much Obliged.
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Pentode



Joined: 30 Oct 2007
Posts: 85
Location: Nr. Manchester (UK)

PostPosted: Wed Aug 04, 2010 10:44 pm    Post subject: Reply with quote

All I can say is that the TFK517 is a Telefunken device, info on it appears to be a little shy.... usually a clue can be had by studying the circuit.

Sorry I can't be of more help,.

David
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tux



Joined: 20 Jun 2006
Posts: 5

PostPosted: Sat Aug 07, 2010 7:20 am    Post subject: Reply with quote

Pentode wrote:
All I can say is that the TFK517 is a Telefunken device, info on it appears to be a little shy.... usually a clue can be had by studying the circuit.

Sorry I can't be of more help,.

David


Thanks Pentode. Been searching the net for hours on this one but no go ... strange component this one Confused I'm almost sure it's an SCR.

Cheers.
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The_AntiRAM
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PostPosted: Sun Aug 08, 2010 8:28 pm    Post subject: Reply with quote

tux wrote:
Pentode wrote:
All I can say is that the TFK517 is a Telefunken device, info on it appears to be a little shy.... usually a clue can be had by studying the circuit.

Sorry I can't be of more help,.

David


Thanks Pentode. Been searching the net for hours on this one but no go ... strange component this one Confused I'm almost sure it's an SCR.

Cheers.



OR a TRIAC.
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The_AntiRAM
Guest





PostPosted: Tue Aug 10, 2010 8:04 pm    Post subject: Reply with quote

annvin wrote:
What's TRIAC? I have no idea about it. Could you please tell me something? Sad


Is an electronic component equivalent to two silicon-controlled rectifiers SCRs/thyristors joined in inverse parallel.

It results in a bidirectional electronic switch which can conduct current in either direction when it is triggered (turned on) and thus doesn't have any polarity.

Gate trigger electrode is common to this configuration.

A common Triac is a: BTA 06-600A (ST) very frequently used in light dimmers or, with appropriately developed circuitry, as a motor speed variator / control.
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max78
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PostPosted: Wed Jan 08, 2014 10:43 pm    Post subject: try TE13005 instead of TFK517 Reply with quote

the second label on that part is more important - 130 05
It's a NPN Power Transistor - e.g. TE13005

I found it here: bg-electronics.de/shop/product_info.php/products_id/1738 ..and have used it for a Bernina 1090 sewing machine - it worked Smile

best wishes
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