MFG Part Number DA-033-12-02-00-00

# DA-033-12-02

##  Tunnel Series Thermoelectric Cooler Assembly

 The DA-033-12-02 is a thermoelectric based air conditioner designed to temperature control small chambers used in analytical and medical diagnostic instruments. The unique design offers premium fans pushing air across-high density heat sinks to minimize the number of air flow paths required to operate. The design utilizes custom thermoelectric modules to maximize cooling capacity with a high coefficient of performance. Moisture resistant insulation is used to keep condensation from penetrating the thermoelectric module cavity. The unit operates on DC and is designed for an indoor lab use environment. It has a maximum Qc of 32 Watts when ΔT = 0 and a maximum ΔT of 48 °C at Qc = 0.

![Product image](/thermal-wizard/images/tea/Tunnel%20Series/DA-033-12-02/DA-033-12-02-large.png)

### Features

- Compact design
- Precise temperature control
- Reliable solid-state operation
- DC operation
- RoHS-compliant

### Applications

- [Thermoelectric Coolers and Assemblies for Medical Applications](/resources/application-notes/thermoelectric-modules-and-assemblies-medical-applications)
- [Liquid Cooling Options for PET and SPECT Scanners](/resources/application-notes/liquid-cooling-options-pet-and-spect-scanners)
- [Peltier Cooling for Refrigerated Centrifuges](/resources/application-notes/peltier-cooling-for-refrigerated-centrifuges)
- [High-Performance Liquid Chromatography (HPLC)](/applications/liquid-chromatography)
- [Thermal Management Solutions for Beverage Cooling](/resources/application-notes/thermal-management-solutions-beverage-cooling)
- [Heating and Cooling for Liquid Chromatography Systems](/thermal-technical-library/application-notes/heating-cooling-liquid-chromatography-systems)

![Isometric drawing](/thermal-wizard/images/tea/Tunnel%20Series/DA-033-12-02/DA-033-12-02-isometric-drawing.png) ![](/thermal-wizard/images/tea/CE-ROHS.png)

### Specifications

Heat Transfer Mechanism, Cold Side

Direct - Conduction

Heat Transfer Mechanism, Hot Side

Air - Forced Convection

Operating Temperature Range

-10°C to 45°C

Supply Voltage

12.0 VDC nominal / 14.7 VDC maximum

Current Draw

3.1 A running / 3.6 A startup

Power Supply

37.2 Watts

Performance Tolerance

10%

Hi-Pot Testing

No Testing

Fan MTBF

40000 hours

Weight

0.54 kg

Panel Mounting

Flush Mount

### Mounting Hole Location

![Mounting Hole Location](/thermal-wizard/images/tea/Tunnel%20Series/DA-033-12-02/DA-033-12-02-mounting.png)

### Wiring Schematic

![Wiring Schematic](/thermal-wizard/images/tea/Tunnel%20Series/DA-033-12-02/DA-033-12-02-wiring-schematic.png)

### Electrical and Thermal Performance

**Optimum COP**  
 Cooling Power (Qc) = 5.87 Watts  
 TEM Voltage = 4.16 Volts  
 TEM Current = 0.79 Amps  
 TEM COP = 1.78  
 Power Supply = 3.3 Watts  
 Power Dissipated (Qh) = 9.18 Watts  
 Fan Voltage = 12.0 Volts  
 Fan Current = 0.5 Amps  

**Maximum Qc**  
 Cooling Power (Qc) = 25.46 Watts  
 TEM Voltage = 14.73 Volts  
 TEM Current = 3.17 Amps  
 TEM COP = 0.55  
 Power Supply = 46.6 Watts  
 Power Dissipated (Qh) = 72.1 Watts  
 Fan Voltage = 12.0 Volts  
 Fan Current = 0.5 Amps  

#### Default Calculated Operating Conditions

##### Electrical Operating Point

- TEC Voltage: 12 V
- TEC Current: 2.58 A
- Cooling Power (Qc): 22.96 W
- Power Supply: 30.98 W
- TEC COP: 0.74
- Power Dissipated (Qh): 53.94 W
- Fan Voltage: 12 V
- Fan Current: 0.5 A

##### Thermal Operating Conditions

模式: Cooling

- Ambient High Temperature: 35 °C
- Control Temperature: 20 °C
- Cooling ΔT: 15 °C

### Notes

1 For indoor use only

Any information furnished by Tark Thermal Solutions and its agents, whether in specifications, data sheets, product catalogues or otherwise, is believed to be (but is not warranted as being) accurate and reliable, is provided for information only and does not form part of any contract with Tark Thermal Solutions. All specifications are subject to change without notice. Tark Thermal Solutions assumes no responsibility and disclaims all liability for losses or damages resulting from use of or reliance on this information. All Tark products are sold subject to the Tark Thermal Solutions Terms and Conditions of sale (including Tark’s limited warranty) in effect from time to time, a copy of which will be furnished upon request.  

 © Copyright 2026 Tark Thermal Solutions, Inc. All rights reserved.

Revision: 00 Date: 06-01-2022

Print Date: 10-21-2026

**Original URL:** https://tark-solutions.com/cn/products/thermoelectric-cooler-assemblies/peltier-tunnel-series/DA-033-12-02