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ktkm

Mac IIci PSU: Astec replacement film caps hard to find!?

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Hello!

I having trouble finding the right film capacitor replacement for an IIci Astec PSU, especially the large 2.0 µF 250 VAC. My local supplier doesn’t have them, so I thought I use Mouser for this order or any other suggestion for that matter.

 

This is the entire capacitor list (red shows the ones I have trouble finding):

0.0033 µF Y 250 V (Film)    ⌀ 10 mm
0.0047 µF Y 250 V (Film)    ⌀ 10 mm
0.0047 µF Y 250 V (Film)    ⌀ 10 mm

0.047 µF X2 (Film)    ⌀ 15 mm
0.1 µF X2 250 V (Film)    ⌀ 20 mm

2.0 µF 250 VAC (630 VDC?) (Film)    ⌀ 27 mm
0.22 µF X2 50 V  (Film)  ⌀ 20 mm
10 µF 25 V     ⌀ 3 mm
10 µF 50 V     ⌀ 3 mm
1000 µF 16 V    ⌀ 4 mm
1000 µF 16 V    ⌀ 4 mm
2.2 µF 50 V    ⌀ 3 mm
2200 µF 10 V    ⌀ 6 mm
2200 µF 10 V    ⌀ 6 mm
2200 µF 16 V    ⌀ 4 mm
2200 µF 25 V    ⌀ 8 mm
47 µF 100 V    ⌀ 4 mm
47 µF 16 V     ⌀ 3 mm
470 µF 16 V    ⌀ 4 mm
470 µF 200 V    ⌀ 10 mm
470 µF 200 V    ⌀ 10 mm

IMG_2077.jpeg

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1 hour ago, ktkm said:

I’ll check it out, thanks!

I'll be recapping mine this week. I accidentally ran out of solder and some of the film caps I ordered aren't the best fit so I'm going to try some others. I can probably remember to update the thread if it works or not.

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On 12/3/2019 at 4:17 AM, ktkm said:

Please update, and show me how you made them fit :-) 

Finished my recapping and nothing blew up. Some of my film caps were much smaller than the old ones being replaced so what I did with those was mostly had 1 leg lined up with the hole and the other leg bent a couple times to fit the second hole. Had to make sure I ordered one with long leads. I have a video of all this but it'll take a day or two to finish it. Some Digikey part numbers I used:

 

399-13014-ND - KEMET 0.047uf

399-5876-ND - KEMET 4700pf

399-12519-ND - KEMET 0.1uf

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5 hours ago, ktkm said:

Thank you @netfreak very helpful! I’ll order the same set from Digikey. Did you keep the old 2uF cap in place?

Yeah the 2uf one is still there. I'm probably less concerned about that one compared to the RIFA ones.

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