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DIY For Audio
Mica insulators for TO-247
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<blockquote data-quote="d0dja" data-source="post: 943279" data-attributes="member: 2244"><p>I don't have any old PSUs around. But it seems that TO-247 mica pads are not a thing. Most sites I found only have TO-220.</p><p></p><p>I guess it should work -- it's 22 high by 13.2 wide, with the 3.68mm hole offset down by 5mm. A TO-220 is 15mm wide x 20mm high (all of it metal tab). A TO-247 is 20 high, 15.5 wide 20 high, with the metal part being 13mm high, hole 5.5mm down. The "cutout" on the TO-220 pad should be under the plastic part of the TO-247.</p><p></p><p>Well, let's order. I really hate RS -- even though it's in stock, it still shows as "4-6 days delivery or pickup" and then when you get to your cart it says available for delivery only.</p><p></p><p>I ordered some "2 days" relays, three days later still waiting to go pick up. </p><p></p><p>I met with the MD last year who swore up and down that they were sorting out their ridiculously customer-hostile systems. But nothings changed. </p><p></p><p> </p></blockquote><p></p>
[QUOTE="d0dja, post: 943279, member: 2244"] I don't have any old PSUs around. But it seems that TO-247 mica pads are not a thing. Most sites I found only have TO-220. I guess it should work -- it's 22 high by 13.2 wide, with the 3.68mm hole offset down by 5mm. A TO-220 is 15mm wide x 20mm high (all of it metal tab). A TO-247 is 20 high, 15.5 wide 20 high, with the metal part being 13mm high, hole 5.5mm down. The "cutout" on the TO-220 pad should be under the plastic part of the TO-247. Well, let's order. I really hate RS -- even though it's in stock, it still shows as "4-6 days delivery or pickup" and then when you get to your cart it says available for delivery only. I ordered some "2 days" relays, three days later still waiting to go pick up. I met with the MD last year who swore up and down that they were sorting out their ridiculously customer-hostile systems. But nothings changed. [/QUOTE]
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DIY & Tutorials
DIY For Audio
Mica insulators for TO-247
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