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Mini 12VDC Peltier Cooling Assembly Used

Mini 12VDC Peltier Cooling Assembly Used

34526-large.jpg  34526PMConnA.jpg  360-3D.jpg    California Proposition 65 Warning
Stock No: 34526 PM
 Review Average:  
 Number of Reviews: 4
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 Detailed Description
USED, Peltier Effect cooling assembly with TEC module, Heatsink, fan & 2 thermocouples. Contains a 127 pair module mounted to a hot side heatsink assembly with a Mini fan, a cold side aluminum transfer bar with the thermocouples.
TEC Module: similar to a TEC1-12703
Volts: 12V Nominal /16V max,
Amps: ~3.3A @ 12VDC.
Qc: ~36Watts @ DT=0deg. Ta=25deg "C"
Fan: 40mm sq.
Volts:12VDC @ .15A
CFM: ~9.5
Noise: ~33db noise.
Thermocouples: 2 epoxied into top of Cold Bar
~ 10K ohm @ 25 "C"
L: 2-3/4" OA W: 2-1/4" OA H: 3" WT: .6

California Proposition 65 Warning WARNING: This product can expose you to chemicals including Chromium which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

 Product ReviewsClick here to review this item
This Peltier cooling assembly gets 5-stars since MPJ now includes a connector diagram. The Peltier assembly works very well. Data from initial 5-minute run follows. With a 67 degrees Fahrenheit F ambient temperature, the thermal transfer bar cold finger temperature dropped to 23 degrees F. The cold finger was insulated with packing foam and I attached an external K-type thermocouple to it with tape. Electrical data: potential was 12.0 to 12.4VDC from a regulated power supply. Maximum current ranged from 3.08 to 3.11 amperes A. The resistance of the thermistors embedded in the cold finger was ~12k-ohms at 67F. At 23 degrees, the resistance had increased to ~47.2k-ohms. The temperature difference dT was then 44F. I kept the cooler running for a few more minutes; the cold finger temperature dropped to 20F. That value appeared to be the maximum temperature drop under these conditions.
- TIM Bald Engineer Guy, VA
Temperature sensors are themistors not thermocouples
Works great. The two temperature sensors are 10K ohm thermistors not thermocouples. Resistance goes up as temperature decreases. Three minute operation at 2.9 Amps- the thermistor went from 9.3K ohms to 22.5K ohms.
- Bob, NC
Great with a wiring diagram
Threaten to return item because of no wiring diagram tadah! They sent a wiring diagram not complete but at least this works! They did not say what the Yellow and Green wire pairs were for. it is 70° in my room and the device is sweating profusely I do not have thermometer to check temp. I wonder if I could make a water cooler I would gang them up as I need to cool a CO2 laser. It draws 2.82 amps so needs a solid power supply. The air from fan feels only slightly above ambient. I would give 5 stars if I knew what the yellow and green wires were for.
- Ralph Hulslander, NY
Nice BUT!!
Need a wiring diagram! Ill have to take it apart to see where the wires go. I assume the 2 red and black power the fan. But what are the green and yellow pairs for and with the red and black what is the white for?
- Ralph Hulslander, NY

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