Tark Thermal Solutions
OptoTEC™ OT Series OT20-32-F0-0808-22-W2.25
MFG Part Number: 430278-503
Legacy Product
OptoTEC™ OT Series Thermoelectric Cooler
Note: This product is not recommended for new designs.
The recommended replacement is:
      MFG Part Number: 387006924
      Description: OTX20-32-F0-0808-22-W2.25
The OT20-32-F0-0808-22-W2.25 is a miniature thermoelectric cooler. The OT20-32-F0-0808-22-W2.25 is primarily used in applications to stabilize the temperature of sensitive optical components in the telecom and photonics industries. It has a maximum Qc of 4 Watts when ΔT = 0 and a maximum ΔT of 68 °C at Qc = 0.
Features
  • Miniature geometric sizes
  • Precise temperature control
  • Reliable solid-state operation
  • No sound or vibration
  • DC operation
  • RoHS-compliant

Electrical and Thermal Performance

For maximum performance, be sure to orient the CONTROL side of the TEC against the application to be managed and the AMBIENT side against the heat sink or other heat rejection method. The CONTROL side is always opposite the side with lead attachments. Lead attachment is a passive heat loss and less impactful if located on the side that attaches to the heat exchanger.

0.000.501.001.502.002.50Operating Current (Amps)0.000.501.001.502.002.503.003.504.004.50Qc (Watts)Heat Pumped at Cold SideThot = 27 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.000.501.001.502.002.503.003.504.00Operating Voltage (Volts)0.000.501.001.502.002.503.003.504.004.50Qc (Watts)Heat Pumped at Cold SideThot = 27 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.000.501.001.502.002.50Operating Current (Amps)0.000.501.001.502.002.503.003.504.00Operating Voltage (Volts)Current vs Voltage (I vs V)Thot = 27 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C

Tark Thermal Solutions
OptoTEC™ OT Series OT20-32-F0-0808-22-W2.25
MFG Part Number: 430278-503
Legacy Product
0.000.501.001.502.002.50Operating Current (Amps)0.001.002.003.004.005.006.00COPCoefficient of Performance (COP = Qc/Pin)Thot = 27 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.000.501.001.502.002.503.003.504.00Operating Voltage (Volts)0.001.002.003.004.005.006.00COPCoefficient of Performance (COP = Qc/Pin)Thot = 27 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.000.501.001.502.002.50Operating Current (Amps)0.002.004.006.008.0010.0012.0014.00Qh (Watts)Total Heat Dissipated at Hot Side (Qh=Qc+Pin)Thot = 27 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.000.501.001.502.002.503.003.504.00Operating Voltage (Volts)0.002.004.006.008.0010.0012.0014.00Qh (Watts)Total Heat Dissipated at Hot Side (Qh=Qc+Pin)Thot = 27 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.010.020.030.040.050.060.070.080.0ΔT (°C)0.000.501.001.502.002.503.003.504.004.50Qc (Watts)Heat Pumped at Cold Side (Qc)Thot = 35 °C | Ioperating = 1.7 Amps
0.010.020.030.040.050.060.070.080.0ΔT (°C)0.000.501.001.502.00COPCoefficient of Performance (COP = Qc/Pin)Thot = 35 °C | Ioperating = 1.7 Amps

Tark Thermal Solutions
OptoTEC™ OT Series OT20-32-F0-0808-22-W2.25
MFG Part Number: 430278-503
Legacy Product
Specifications
Hot Side Temperature
27.0 °C
35.0 °C
50.0 °C
Qcmax (ΔT = 0)
4.0 Watts
4.1 Watts
4.3 Watts
ΔTmax (Qc = 0)
68.0°C
70.9°C
76.0°C
Imax (I @ ΔTmax)
2.0 Amps
2.0 Amps
1.9 Amps
Vmax (V @ ΔTmax)
3.4 Volts
3.5 Volts
3.8 Volts
Module Resistance
1.61 Ohms
1.68 Ohms
1.80 Ohms
Max Operating Temperature
80 °C
 
 
Weight
1.0 gram(s)
 
 

Finishing Options
Suffix
Thickness
Flatness / Parallelism
Hot Face
Cold Face
Lead Length
 22
2.515 ±0.127 mm
0.099 ± 0.0050 in
N/A / N/A
Pre-tinned
Pre-tinned
50.8 mm
2.00 in

Sealing Options
Suffix
Sealant
Color
Temp Range
Description
 
None
No sealing specified

Notes
  1.  Max operating temperature: 80°C
  2.  Do not exceed Imax or Vmax when operating module
  3.  Reference assembly guidelines for recommended installation
  4.  Solder tinning also available on metallized ceramics

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.

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OptoTEC™ is a trademark of Tark Thermal Solutions, Inc. All other marks are owned by their respective owners.

Revision: 00 Date: 06-01-2022

Print Date: 05-14-2025