The TechForum Cross Reference category is for parts that Digi-Key does not sell or parts that have gone obsolete. Our Engineers and Techs have reviewed the specifications for these parts and made a recommendation for a replacement. Please review the suggested part to ensure it will work for your application.
HI, I’m trying to locate substitute parts for these obsolete components from a golf cart controller. I can purchase more if required. I’ve included pics if that helps. any help is greatly appreciated.
Hello mef601.sas - welcome to the Forum community.
We do have stock on TIP41C-BP-ND from Micro Commercial. LM339N/NOPB from Texas Instruments IRF540PBF-ND from Vishay Siliconix
I wasn’t able to find a substitute to offer for DR4180R H.
You will want to compare datasheets to verify that these substitutes are suitable for your application.
The button diode form factor is both wildly common and not; they’re used in automotive alternators and similar applications by the millions, but since there are very few actual manufacturers in those markets they’re not common as a general-market item. The problem one would likely run into in finding a substitute in a standard plastic TO220 package is that the latter has a lot more inactive “filler” material by volume, leaving less space available for silicon and current-carrying lead members.
A 40A/80V rating loosely guesstimated from the part number would seem pretty close to the ratings of the adjacent transistors, though finding a datasheet to confirm would be desirable. Some reverse-engineering failing that might lead to some insights also, and I’d guess there’s a fair chance a person might be able to disassemble the two lead frame elements and solder in a standard button should the existing ones prove faulty.
Based on the last post, I suspect it would be worth your time to purchase and then evaluate a TSR2402R diode for your application. I haven’t found a DigiKey substitution, but am readily able to locate this Schottky diode from multiple other source.