I ordered an assortment of 1/4-watt metal film resistors via Amazon maybe a couple of years ago. They measure (value-wise) and are labelled appropriately.
The only thing is, the leads are awfully thin. Approx. .3mm. I'm accustomed to slightly thicker leads, typically around .45mm.
It hasn't been a problem until now, I'm modifying a cheap phono preamp so I can change the loading resistors. I purchased some inexpensive sockets on Amazon that work great with everything but these resistors, the leads are just too small for the sockets to grip.
So I figured I'd just order a small assortment of resistors via Digikey, but was wondering if I'd run into the same issue. Is this something others are seeing, should I increase the wattage to 1/2-watt?
Or do I just have some cheap, non-conforming resistors, and others ordered via Digikey will be safe?
Any stand-out brands @ Digikey which may have a more hefty lead?
Thanks in advance for any help.
The only thing is, the leads are awfully thin. Approx. .3mm. I'm accustomed to slightly thicker leads, typically around .45mm.
It hasn't been a problem until now, I'm modifying a cheap phono preamp so I can change the loading resistors. I purchased some inexpensive sockets on Amazon that work great with everything but these resistors, the leads are just too small for the sockets to grip.
So I figured I'd just order a small assortment of resistors via Digikey, but was wondering if I'd run into the same issue. Is this something others are seeing, should I increase the wattage to 1/2-watt?
Or do I just have some cheap, non-conforming resistors, and others ordered via Digikey will be safe?
Any stand-out brands @ Digikey which may have a more hefty lead?
Thanks in advance for any help.
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Digi-Key usually provides a link to the manufacturer of a component, so you might look there to see if the lead diameter is in spec. Manufacturers' sheets usually give physical as well as electrical specs for components.
Got it thank you guys, I ordered some Yageo MFR-25's in values that will work.
Really appreciate the help!
Really appreciate the help!
That's because they are cheap Chinese resistors with thin steel leads that can't conduct much heat away, and so are likely less than the 0.25W you think they are...Properly rated resistors with copper leads tend to have more like 0.55 to 0.6mm to help heat conduction to the pcb.