Chilipad Ooler TEC1-16109 equivalent?

[veroniqueblade]

Max size can be 50mmx50mm, OEM is 45mmx45mm. Any suggestions appreciated! 19V9A 102W
Thank you!
I am SO lost

[Brent_2328]

Hello,

Thank you for your post.

I am not seeing a match to that request, but we do have a few options around 5A in that physical size and voltage range.

Fans, Blowers, Thermal Management | Thermal | Thermoelectric, Peltier Modules...

[David_1528]

Hi veroniqueblade,

If you’re interested in a few more options, here are some more to check out.

Out of those, the ATS-TEC45-101-171 seems to be the most similar to your part, though the data is somewhat limited, so it’s difficult to say how close it actually is.

[tangoalpha]

Funny thing is I’m looking for the exact same thing. I think both my peltiers went bad in my Ooler, but mine has the same part number on it but mine is a 50mm x 50mm. Case says it’s a 120v 140w. The peltier i believe is designed for 24v at

[anthony_14117]

Hello @tangoalpha

The link below is the 50mm x 50mm Peltier modules I found

Thermoelectric, Peltier Modules | Thermal | Electronic Components Distributor DigiKey

[veroniqueblade]

Thank you! But I guess I’m really wondering as long as it fits and is rated higher than OEM it would be OK to use? A lot of them have a lower AMP rating though as well

[tangoalpha]

I think another think to take into consideration is the fact there are two peltiers wired in series, I think total values on this unit is 140W at 110v. Maybe someone with more electcial knowledge on this can provide more input. 19V9A 102W I do not believe is correct as when I checked my unit it was pushing about 24v+ to the peltiers, I’ve been too busy to pull it apart and acutally check the amperage. Everything about this unit has been China sourced specialty parts.

[veroniqueblade]

Yours has two modules per unit? There is only one in mine

[tangoalpha]

Yes, mine has two of the same model peltiers wired in series. Does yours look like this? Mine has two measuring 50mm x 50mm x 4.3mm thick.

[David_1768]

Hello tangoalpha,

I think the one David_1528 offered, which is 684-ATS-TEC45-101-171-ND, which is 45mm X 45mm, and rated for 9A and 19.5V.
If you need one rated for 24V, you can look at 2985-TEC1-19913L-S-ND, which is 50mm X 50mm, and rated for 13A and 24.1V.

[tangoalpha]

So someone correct me if I’m wrong, but the board is pushing 24v out to two peltiers wired in series. This means the voltage is split between the two peltiers each getting roughly 12v? This seems interesting considering the OP unit has only 1 peltier. I bench tested them last night with my bench power supply, ensuring to only power it briefly, only one of mine has died.

Would one typically go with one capable of higher than 12v? If the 24v transformer was pushing 25~26v would that cause it to go bad? I think my issue was something caused the pump to stop moving the water.

[Jeff_2258]

Each peltier would ideally get approximately 12V if wired in series.

For the second question, if you’re using 2 x 12V-rated peltiers and the output voltage pushes up to 25- 26V, then that may cause the peltiers to go bad. You would have to look at the datasheet for the Peltier to verify what the max voltage is to confirm.

[rick_1976]

Greetings,

My experience is that peltier devices are one of the most commonly misunderstood in the electronics realm. It’s quite difficult to get a grip on the nuances involved without a decent footing in thermodynamics and electronics alike, and it wouldn’t surprise me in the least if the designer(s) of the product in question were a bit light on either.

A key idea is that the nameplate numbers on a peltier device usually only describe two very specific endpoint conditions, and that actual practice usually operates somewhere on a continuum between the two, or below. Operation at ~30 to 50% of nameplate ratings tends to give the most thermal bang for the electrical buck, so running two (electrically) in series rather than one at maximum capacity from a given electrical source would be likely to give a more desirable result.

The posts linked below were an attempt to explain some of the considerations involved in using the darn things effectively. From an “I’m out of warranty and I want to try fixing it” standpoint, finding something with specifications as near to original is perhaps one’s best bet, but in pursuing that avenue one assumes all the risks that attend it.

Thermoelectric Modules: Device Specifications

This post is one of a series on thermoelectric modules (TEMs, also called Peltier devices) which convert an electrical input directly to a heat pumping effect. Here, basic concepts of temperature and thermal energy are discussed, the general behavior of TEMs described, and a method for modeling device performance mathematically introduced. Subsequent pages show how this information can be used to make calculated system performance estimates, and highlight various other considerations relevant …

TEM Application Considerations

This page is part of a series on thermoelectric modules (TEMs) also known as Peltier devices. Previous pages in the series discussed the basic function of these components and techniques for modeling and predicting the behaviors of a TEM when used as part of a thermoelectric cooling system. This page covers a number of electrical considerations relevant to the operation of a TEM, and mechanical considerations regarding their installation as part of a thermal system. Electrical Drive Considera…

Modeling Thermoelectric Systems

This post is part of a series on thermoelectric modules (TEMs), also known as Peltier devices. The prior page explored the basic function of TEMs and a method of describing their behavior mathematically based on information likely to be found in product literature. This page steps through a process of developing a thermal model for a system using a TEM to create a small beverage cooler/refrigerator, showing how different portions of the physical system are modeled, how product information can …

Thermoelectric Generation

To this point in the series on thermoelectric devices (related posts here, here, and here.) the discussion has focused on their use as a cooling/heat pumping mechanism. The underlying phenomena also work in reverse; if one maintains a temperature difference across a thermoelectric module (TEM) by external means, it’s possible to extract a portion of the thermal energy required to do so in electrical form, without need of any moving parts. When used in such fashion it is common to see TEMs refe…

@tangoalpha

I think my issue was something caused the pump to stop moving the water.

A pump failure or fluid flow restriction in such a system as I understand it would seem extremely likely to result in failure of a thermoelectric device if the system design does not incorporate suitable protections.

[tangoalpha]

So my unit has two peltiers wired in series, I measured the output of the transformer on the board to the peltiers and it appears to max out about 23.36V. So two peltiers in series, 12v each. I’ve got no idea about amperage on them as the printed part number (TEC1-16109) on them do not match anything the internet shows. There is a C17AM 025A5 mounted in series with them, I believe this helps to ensure that peltiers cut off at a high temperature (~110 degrees).

The unit says 110v 140W, the water pump only pulls 0.4 A at 24v. Is there an easy way to check dc amperage of these peltiers? I have a feeling they were made specifically for this unit and I may not find an exact match.