Tark Thermal Solutions
HiTemp ET Series ET19-35-F1N-0612-21-EP-W2.25
MFG Part Number: 430437-506
Legacy Product
HiTemp ET Series Thermoelectric Cooler
Note: This product is not recommended for new designs.
The recommended replacement is:
      MFG Part Number: 387006901
      Description: OTX19-35-F1N-0612-21-EP-W2.25
The ET19-35-F1N-0612-21-EP-W2.25 high temperature thermoelectric cooler uses Laird Thermal Systems' enhanced Thermoelectric Module construction preventing performance degrading diffusion, which is common in standard grade thermoelectric coolers operating in high temperature environments exceeding 80 °C. It has a maximum Qc of 4.7 Watts when ΔT = 0 and a maximum ΔT of 77.9 °C at Qc = 0.
Features
  • High-temperature operation
  • Reliable solid-state
  • No sound or vibration
  • Environmentally-friendly
  • 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)0.001.002.003.004.005.006.00Qc (Watts)Heat Pumped at Cold SideThot = 85 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.001.002.003.004.005.006.00Operating Voltage (Volts)0.001.002.003.004.005.006.00Qc (Watts)Heat Pumped at Cold SideThot = 85 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.000.501.001.502.002.50Operating Current (Amps)0.001.002.003.004.005.006.00Operating Voltage (Volts)Current vs Voltage (I vs V)Thot = 85 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C

Tark Thermal Solutions
HiTemp ET Series ET19-35-F1N-0612-21-EP-W2.25
MFG Part Number: 430437-506
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 = 85 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.001.002.003.004.005.006.00Operating Voltage (Volts)0.001.002.003.004.005.006.00COPCoefficient of Performance (COP = Qc/Pin)Thot = 85 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.000.501.001.502.002.50Operating Current (Amps)0.002.004.006.008.0010.0012.0014.0016.0018.00Qh (Watts)Total Heat Dissipated at Hot Side (Qh=Qc+Pin)Thot = 85 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.001.002.003.004.005.006.00Operating Voltage (Volts)0.002.004.006.008.0010.0012.0014.0016.0018.00Qh (Watts)Total Heat Dissipated at Hot Side (Qh=Qc+Pin)Thot = 85 °CΔT=0°CΔT=10°CΔT=20°CΔT=30°CΔT=40°CΔT=50°CΔT=60°C
0.010.020.030.040.050.060.070.080.090.0ΔT (°C)0.001.002.003.004.005.006.00Qc (Watts)Heat Pumped at Cold Side (Qc)Thot = 85 °C | Ioperating = 1.6 Amps
0.010.020.030.040.050.060.070.080.090.0ΔT (°C)0.000.501.001.502.00COPCoefficient of Performance (COP = Qc/Pin)Thot = 85 °C | Ioperating = 1.6 Amps

Tark Thermal Solutions
HiTemp ET Series ET19-35-F1N-0612-21-EP-W2.25
MFG Part Number: 430437-506
Legacy Product
Specifications
Hot Side Temperature
50.0 °C
85.0 °C
110.0 °C
Qcmax (ΔT = 0)
4.7 Watts
5.2 Watts
5.4 Watts
ΔTmax (Qc = 0)
77.9°C
89.3°C
96.2°C
Imax (I @ ΔTmax)
1.9 Amps
1.8 Amps
1.8 Amps
Vmax (V @ ΔTmax)
4.2 Volts
4.8 Volts
5.3 Volts
Module Resistance
2.05 Ohms
2.39 Ohms
2.61 Ohms
Max Operating Temperature
150 °C
 
 
Weight
1.0 gram(s)
 
 

Finishing Options
Suffix
Thickness
Flatness / Parallelism
Hot Face
Cold Face
Lead Length
 11
1.651 ±0.051 mm
0.065 ± 0.0020 in
0.051 mm / 0.051 mm
0.002 in / 0.002 in
Lapped
Lapped
50.8 mm
2.00 in

Sealing Options
Suffix
Sealant
Color
Temp Range
Description
 EP
Epoxy
Black
-55 to 150°C
Low density syntactic foam epoxy encapsulant

Notes
  1.  Max operating temperature: 150°C
  2.  Do not exceed Imax or Vmax when operating module
  3.  Reference assembly guidelines for recommended installation

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 2025 Tark Thermal Solutions, Inc. All rights reserved.

Revision: 00 Date: 06-01-2022

Print Date: 05-14-2025