Anyone know of an alternative for a R10E2662-2 DPDT relay

**Crystaleyes** · 06-30-2022, 08:47 AM

I'm having trouble finding an R10 E2662-2 telephone relay, originally made by Potter & Brumfield, and have also been unable to find a suitable replacement.

It is missing from a Fluke 8600A bench multimeter

It isn't really mentioned in the manual, yet judging by others in the series, it appears to have a 4.5v coil, but I could be wrong...

I can find the later R10 E1Y2 relay, however it has a 12v coil

Enclosing pictures of the socket and relay pin assembly

Here is the service manual;

https://assets.fluke.com/manuals/8600a___imeng0300.pdf

**Per Hansson** · 06-30-2022, 10:15 AM

I can confirm it is most likely a 4.5v relay because it sits on the +5v line and is controlled by a transistor so that will have a 0.7v drop...

**R_J** · 06-30-2022, 10:55 AM

Maybe this? R10-E2Y2-V52 (Digikey) 6v coil (operates at 4.5v) It has PCB terminals but might work?

**Per Hansson** · 06-30-2022, 11:01 AM

Looking at a photo here shows a coil resistance of 145Ω
From that same series of relays you've shown we can see there exists a version with a coil resistance of 140Ω so pretty much a perfect match:
R10-E1W2-S140 it is a 5v relay but it operates down to 3.75v
Just need to make sure it has the proper number of contacts and the configuration they are in and that it fits the socket:
https://eu.mouser.com/ProductDetail/...J6JE0CHQ%3D%3D

**sam_sam_sam** · 06-30-2022, 07:30 PM

Even if the pins are not exactly the same if you have room in the enclosure you might be able to mount it some where near the board

**CapLeaker** · 07-01-2022, 03:39 AM

As long as the coil voltage and relay configuration is the same, you can wire the new relay in and glue it in its new place. I even done this with unobtainable rf relays. Works fine as kind.

**Crystaleyes** · 07-01-2022, 06:30 PM

Fantastic info gents. Just what the doctor ordered.

With so many different relay options, searching for an obsolete equivalent isn't so easy..

Many thanks!

06-30-2022, 10:55 AM	#3
R_J Badcaps Veteran Join Date: Jun 2012 City & State: ☻ My Country: Canada I'm a: Professional Tech Posts: 8,168	Re: Anyone know of an alternative for a R10E2662-2 DPDT relay Maybe this? R10-E2Y2-V52 (Digikey) 6v coil (operates at 4.5v) It has PCB terminals but might work? Last edited by R_J; 06-30-2022 at 10:59 AM..

06-30-2022, 11:01 AM	#4
Per Hansson Super Moderator Join Date: Jul 2005 City & State: ---- My Country: Sweden Line Voltage: 230v 50Hz I'm a: Knowledge Seeker Posts: 5,232	Re: Anyone know of an alternative for a R10E2662-2 DPDT relay Looking at a photo here shows a coil resistance of 145Ω From that same series of relays you've shown we can see there exists a version with a coil resistance of 140Ω so pretty much a perfect match: R10-E1W2-S140 it is a 5v relay but it operates down to 3.75v Just need to make sure it has the proper number of contacts and the configuration they are in and that it fits the socket: https://eu.mouser.com/ProductDetail/...J6JE0CHQ%3D%3D

06-30-2022, 07:30 PM	#5
sam_sam_sam Badcaps Veteran Join Date: Jul 2011 City & State: Some times Sunny Jacksonville FL My Country: USA Line Voltage: 120 Volts 60 HZ I'm a: Knowledge Seeker Posts: 3,659	Re: Anyone know of an alternative for a R10E2662-2 DPDT relay Even if the pins are not exactly the same if you have room in the enclosure you might be able to mount it some where near the board __________________ 9 PC LCD Monitor 6 LCD Flat Screen TV 30 Desk Top Switching Power Supply 10 Battery Charger Switching Power Supply for Power Tool 6 18v Lithium Battery Power Boards for Tool Battery Packs 1 XBox 360 Switching Power Supply and M Board 25 Servo Drives 220/460 3 Phase 6 De-soldering Station Switching Power Supply 1 Power Supply 1 Dell Mother Board 15 Computer Power Supply 1 HP Printer Supply & Control Board * lighting finished it * These two repairs where found with a ESR meter...> Temp at 50F then at 90F the ESR reading more than 10% 1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later ) 2 Hem Saw Computer Stack Board All of these had CAPs POOF All of the mosfet that are taken out by bad caps

07-01-2022, 03:39 AM	#6
CapLeaker Leaking Member Join Date: Dec 2014 City & State: Atlantic Canada My Country: Canada Line Voltage: Ground, 0Hz I'm a: Hobbyist Tech Posts: 5,221	Re: Anyone know of an alternative for a R10E2662-2 DPDT relay As long as the coil voltage and relay configuration is the same, you can wire the new relay in and glue it in its new place. I even done this with unobtainable rf relays. Works fine as kind.

07-01-2022, 06:30 PM	#7
Crystaleyes Badcaps Veteran Join Date: Sep 2021 City & State: Britain My Country: Britain I'm a: Hobbyist Tech Posts: 222	Re: Anyone know of an alternative for a R10E2662-2 DPDT relay Fantastic info gents. Just what the doctor ordered. With so many different relay options, searching for an obsolete equivalent isn't so easy.. Many thanks!

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