Please help me match a component (relay) - pics included

Hi, Mike. It looks like you're headed in the right direction for finding a replacement for the Han Kuk relay (I don't think they've got distributors -- they seem to be a Korean B2B manufacturer).

There aren't any datasheets available on the web for the Han Kuk relay. Working with the picture and link you provided, the original is a 24VDC coil relay with two "Form A" contacts. That means there are two separate switches inside the relay. When the relay is energized, both switches turn on. There are no extra contacts for the switches so the common will make with another contact when the relay is off, too. That would be a "Form C" contact.

Many times, the audio engineers will start development with a standard product, and then try to wring savings out. If the board footprint of your Han Kuk is a standard 5mm, it's very possible the engineers decided to save money here. Two fewer PCB holes, and also a somewhat less expensive relay if they only needed two normally open contacts.

Now your replacement *is* a two pole Form C, which means it's got those two extra, unneded contacts. Cutting off the two extra pins will not hurt the internals of the relay in any way. Apart from making it useless for reuse, there's no problem there.

Now the relay contacts have a rating for how much current they can switch on and off. The Han Kuk is apparently rated for 5 amps, and the Finder is rated for 8. That means the Finder may have slightly heavier, more durable contacts (silver alloy), which can switch a slightly greater current. Either that, or the folks at Finder may just be defining contact life a little differently -- there's no absolute standard. Either way, there should be no problem with using the Finder as a replacement once you cut off the extra pins -- that is, assuming the PCB layout of the Han Kuk is the same.

Good luck Chris

here:

Thanks a lot Chris, I'll give it a go. I hope this one does have more durable contacts that Han Kuk! Best wishes, Mike

net/1.asp

Hello, When doing relay replacement, you can consider HONGFA's relay.

Pull your head out of your ass and stop spamming Usenet.

This is a BEGINNERS' group. The OP is obviously seeking a quantity of ONE. Sending off to Asia for that is only an option in your twisted little marketing-drone mind. . . The way you re-post 3 layers of previous text in its entirety is also stupid. Find a netiquette guide and READ IT.