Hi and thanks for reading this post.
I have a few blown one watt resistors i want to replace in my power amp and have been on mouser, digikey, farnell etc but cannot find sizes small enough.
I have just 8.5mm in width on the board so am thinking about using surface mount resistors as these are available in smaller packages.
Do you think this is a wise move switching from through hole to surface mount, has anyone done this and what are your experiences concerning sound quality changes.
Many thanks in advance. John.
I have a few blown one watt resistors i want to replace in my power amp and have been on mouser, digikey, farnell etc but cannot find sizes small enough.
I have just 8.5mm in width on the board so am thinking about using surface mount resistors as these are available in smaller packages.
Do you think this is a wise move switching from through hole to surface mount, has anyone done this and what are your experiences concerning sound quality changes.
Many thanks in advance. John.
Try these. The 1W resistors are 9mm long.
ERX Series - Panasonic Electronic Components - Metal Film | Dynamic Catalog | DigiKey Corporation
ERX Series - Panasonic Electronic Components - Metal Film | Dynamic Catalog | DigiKey Corporation
Hot-running resistors shouldn't be in contact with the circuit board in any case. Bend the leads under and down to fit the mounting holes.
Hi. Thanks for the replies, much appreciated.
I am really after advice concerning switching from through hole resistors to surface mount, is this possible from a sound quality point of view, has anyone done this and what were the results..
Thanks. John.
I am really after advice concerning switching from through hole resistors to surface mount, is this possible from a sound quality point of view, has anyone done this and what were the results..
Thanks. John.
A pair of 0.6W resistors give a 1.2W rating. Fit one on top side and before you trim the leads solder the second on the bottom side.
Far cheaper than keeping a stock of higher wattage resistors.
Far cheaper than keeping a stock of higher wattage resistors.
Can't see why would sound change.switching from through hole resistors to surface mount, is this possible from a sound quality point of view,
I have to secund AndrewT's suggestion. If it was 1 watt ind it blew, paralell resistors to make up a higher wattage. I would possibly not stop at 2x0.6w, but rather aim for 3 or even 4x 0.6w .
Hi. Thanks for the replies.
I've found a few surface mount resistors on mouser but cannot understand the datasheet, usually when purchasing through hole resistors i look for descriptions such as low noise or military or suitable for audio etc but there is no mention.
Does anyone understand datasheets better than me or has an opinion on the caddock mk 132 series,vishay dralorik crcw-hp, vishay wsc/wsn series.
Are these suitable for audio amps.
Thank you. John.
I've found a few surface mount resistors on mouser but cannot understand the datasheet, usually when purchasing through hole resistors i look for descriptions such as low noise or military or suitable for audio etc but there is no mention.
Does anyone understand datasheets better than me or has an opinion on the caddock mk 132 series,vishay dralorik crcw-hp, vishay wsc/wsn series.
Are these suitable for audio amps.
Thank you. John.
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