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Sx-450 recap alternative components?

Tomodan

New Member
Hi all, it’s been a while since I did my last project and thought it was about time I gave my little 450 some love….

I’m going to do a full recap on the SX-450 and found the BOM in this thread: https://audiokarma.org/forums/index.php?threads/pioneer-sx-450-recap-need-parts-list.399302/

like last time I did a project I have found a few of the components are either no longer available or wildly long lead time on Mouser here in the UK

I’m not confident in selecting suitable alternatives as I’m not experienced in the details of the components so….

would anyone be able to help me out and perhaps point me in the right direction of a BOM that has suitable available parts from the UK mouser site?

many thanks in advance!
 
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All of the electrolytics can be "general purpose" rated. They don't need to be "audio grade" or specifically low ESR.

For the obsolete poly film caps, to replace the 1µF/50V devices you can use ESC105M050AC3AA with success. For the obsolete 0.1µF/50V devices you can use MMK5104K50J01L16.5TA18 safely. For the obsolete 0.33µF/50V devices you can use MMK5334M50J01L4BULK (and NOT the MMK5333J50J01L16.5TA18 previously noted), and for the 0.47µF/50V try MMK5474K50J01L4BULK or something similar.

For the main filter caps, UFW1J472MRD should fit the spacing and perform adequately.
 
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Thanks both, I must admit I assumed that was a typo so went and found an equivalent to the one listed in the original BOM of .33uF.

I have worked my way through the Mouser site to get round the bits from the BOM here that are either unavailable or long lead time and have come up with the following:


667-ECQ-V1H474JL 6
647-UPW1A221MED 2 UPW1A221MED 647-UPW1A221MED Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 10volts 220uF AEC-Q200
647-UPW1H221MPD 3 UPW1H221MPD6TD 647-UPW1H221MPD6TD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 220uF 50 Volts 20% AEC-Q200
647-UPW1H101MPD 1 UPW1H101MPD 647-UPW1H101MPD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 50volts 100uF AEC-Q200
667-ECQ-V1H334JL 2
647-UPW1V470MED 7
647-UPW1H100MDD 1 UPW1H100MDD 647-UPW1H100MDD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 50volts 10uF AEC-Q200
647-UPW1H220MDD 1 UPW1H220MDD 647-UPW1H220MDD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 50volts 22uF AEC-Q200
647-UKL1H010KDDANA 3
647-UPW1V101MPD 4 UPW1V101MPD1TA 647-UPW1V101MPD1TA Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 100uF 35 Volts 20% AEC-Q200
647-UKL1H4R7KDDANA 2
647-UPW1E100MDD6 1
647-UPW1C101MED 2 UPW1C101MED1TD 647-UPW1C101MED1TD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 100uF 16 Volts 20% AEC-Q200
667-ECQ-V1H104JL 1
512-KSA992FBU 6 KSA992FBU 512-KSA992FBU onsemi Bipolar Transistors - BJT Bipolar Transistors - BJT PNP Epitaxial Sil
80-MMK5474K50J01L4 6 MMK5474K50J01L4BULK 80-MMK5474K50J01L4 KEMET Film Capacitors Film Capacitors 50volts 0.47uF 10% LS 5mm
505-MKS2B033301A00JF 2 MKS2B033301A00JF00 505-MKS2B033301A00JF WIMA Film Capacitors Film Capacitors 0.33 uF 50 VDC 5%
80-ESC105M050AC3AA 3 ESC105M050AC3AA 80-ESC105M050AC3AA KEMET Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 50V 1uF 105C 2k Hour Radial
80-MMK5104K50J01TA18 1 MMK5104K50J01L16.5TA18 80-MMK5104K50J01TA18 KEMET Film Capacitors Film Capacitors 50volts 0.1uF 10% LS 5mm
80-ESY476M035AE3AA 7 ESY476M035AE3AA 80-ESY476M035AE3AA KEMET Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 35V 47uF 105C 2k Hour Radial
667-EEU-FM1E471LJ 1 EEU-FM1E471LJ 667-EEU-FM1E471LJ Panasonic Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded Al Lytic CapLow ESR Radial FM Series
667-EEA-GA1E100H 1 EEA-GA1E100H 667-EEA-GA1E100H Panasonic Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded Al Lytic Cap 105C Radial GA Series
647-LKG1V472MESAAK 2 LKG1V472MESAAK 647-LKG1V472MESAAK Nichicon Aluminum Electrolytic Capacitors - Snap In Aluminum Electrolytic Capacitors - Snap In 4700uF 35 Volts 20% Tol.

Would anyone be able to cast an eye over the list and let me know if I have missed the mark on any of these before I hit order?

Much appreciated!

Cheers

T
 
Are you positive with the number for the "obsolete 0.33µF/50V devices you can use MMK5333J50J01L16.5TA18"?
The description says, “Film Capacitors 50volts 0.033uF 5% LS 5mm”

No. Apparently I cannot distinguish a 33nF from a 33,000µF. My phat phingers will just hack that out sometimes. Good catch! I changed the original reply to avoid confusing anyone else in the future.
 
Thanks both, I must admit I assumed that was a typo so went and found an equivalent to the one listed in the original BOM of .33uF.

I have worked my way through the Mouser site to get round the bits from the BOM here that are either unavailable or long lead time and have come up with the following:


667-ECQ-V1H474JL 6
647-UPW1A221MED 2 UPW1A221MED 647-UPW1A221MED Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 10volts 220uF AEC-Q200
647-UPW1H221MPD 3 UPW1H221MPD6TD 647-UPW1H221MPD6TD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 220uF 50 Volts 20% AEC-Q200
647-UPW1H101MPD 1 UPW1H101MPD 647-UPW1H101MPD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 50volts 100uF AEC-Q200
667-ECQ-V1H334JL 2
647-UPW1V470MED 7
647-UPW1H100MDD 1 UPW1H100MDD 647-UPW1H100MDD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 50volts 10uF AEC-Q200
647-UPW1H220MDD 1 UPW1H220MDD 647-UPW1H220MDD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 50volts 22uF AEC-Q200
647-UKL1H010KDDANA 3
647-UPW1V101MPD 4 UPW1V101MPD1TA 647-UPW1V101MPD1TA Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 100uF 35 Volts 20% AEC-Q200
647-UKL1H4R7KDDANA 2
647-UPW1E100MDD6 1
647-UPW1C101MED 2 UPW1C101MED1TD 647-UPW1C101MED1TD Nichicon Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 100uF 16 Volts 20% AEC-Q200
667-ECQ-V1H104JL 1
512-KSA992FBU 6 KSA992FBU 512-KSA992FBU onsemi Bipolar Transistors - BJT Bipolar Transistors - BJT PNP Epitaxial Sil
80-MMK5474K50J01L4 6 MMK5474K50J01L4BULK 80-MMK5474K50J01L4 KEMET Film Capacitors Film Capacitors 50volts 0.47uF 10% LS 5mm
505-MKS2B033301A00JF 2 MKS2B033301A00JF00 505-MKS2B033301A00JF WIMA Film Capacitors Film Capacitors 0.33 uF 50 VDC 5%
80-ESC105M050AC3AA 3 ESC105M050AC3AA 80-ESC105M050AC3AA KEMET Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 50V 1uF 105C 2k Hour Radial
80-MMK5104K50J01TA18 1 MMK5104K50J01L16.5TA18 80-MMK5104K50J01TA18 KEMET Film Capacitors Film Capacitors 50volts 0.1uF 10% LS 5mm
80-ESY476M035AE3AA 7 ESY476M035AE3AA 80-ESY476M035AE3AA KEMET Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded 35V 47uF 105C 2k Hour Radial
667-EEU-FM1E471LJ 1 EEU-FM1E471LJ 667-EEU-FM1E471LJ Panasonic Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded Al Lytic CapLow ESR Radial FM Series
667-EEA-GA1E100H 1 EEA-GA1E100H 667-EEA-GA1E100H Panasonic Aluminum Electrolytic Capacitors - Radial Leaded Aluminum Electrolytic Capacitors - Radial Leaded Al Lytic Cap 105C Radial GA Series
647-LKG1V472MESAAK 2 LKG1V472MESAAK 647-LKG1V472MESAAK Nichicon Aluminum Electrolytic Capacitors - Snap In Aluminum Electrolytic Capacitors - Snap In 4700uF 35 Volts 20% Tol.

Would anyone be able to cast an eye over the list and let me know if I have missed the mark on any of these before I hit order?

Much appreciated!

Cheers

T

Hi all, just a last check before I hit the button and order the alternative parts in the BOM above - if anyone does spot a howler I have made please do let me know....... Thanks!
 
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