Osborne 1 Power Supply

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This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables

This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so.

Osborne 1 Power Supply

Preliminary Information
Release Year	1981
Leak Risk	Medium
Batteries	None
Mounting Technology	Through Hole
Capacitor Types	Aluminum Electrolytic, Ceramic
Destructive Entry	No

The only electrolytic capacitors in the Osborne seem to be in the power supply.

Known Issues

C18 & C19 might be the first to fail. They've been replaced on one of the two I have for reference.

Disassembly Notes

Warning: It's high voltage, unplug it.

Original Parts

AA12100

(C) 1980 Astec Components LTD

04202016708

Capacitor Specifications and Footprint Information

RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
C1,C11	2	0.1 uF	250V	Through Hole	18mm	10mm	15mm			Rifa	X
C2	1	0.1 uF	250V	Through Hole	23mm	14mm	20mm			Rifa	X
C6,C7	2	100 uF	250V	Through Hole	18mm	40mm	8mm	85 °C	Aluminum Electrolytic	Nippon Chemi-Con	SM / CE04W
C8	1	220 uF		Through Hole	10mm	17mm	5mm	85 °C	Aluminum Electrolytic	Nippon Chemi-Con	SM / CE04W
C15, C16, C17	3	1000 uF	25V	Through Hole	16mm	35mm	8mm	85 °C	Aluminum Electrolytic	Nippon Chemi-Con	SM / CE04W
C18,C19	2	330 µF	16V	Through Hole	13mm	26mm	5mm	85 °C	Aluminum Electrolytic	Nippon Chemi-Con	SM / CE04W
C20	1	470 uF	25V	Through Hole	16mm	26mm	8mm	85 °C	Aluminum Electrolytic	Nippon Chemi-Con	SM / CE04W
C21	1	2200 uF	16V	Through Hole	16mm	26mm	8mm	85 °C	Aluminum Electrolytic	Nippon Chemi-Con	SM / CE04W

Replacement Parts

AA12100

Capacitors

RefDes	Qty	Compatible Part Number	Order Links
C1, C11	2	890324025017	DigiKey Mouser
C2	1	PME271M610KR30	DigiKey Mouser
C6, C7	2	UVK2E101MHD	DigiKey Mouser
C8	1
C15, C16, C17	3	860020475018	DigiKey Mouser
C18, C19	2	860010374011	DigiKey Mouser
C20	1	860020474014	DigiKey Mouser
C21	1	16PK2200MEFC10X20	DigiKey Mouser

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search