Laird Thermal Systems
OptoTEC™ OTX Series OTX15-65-F2A-1312-11-W2.25
MFG Part Number: 387006847
OptoTEC™ OTX Series Thermoelectric Cooler
The OTX15-65-F2A-1312-11-W2.25 is a high-performance, miniature thermoelectric cooler. The OTX15-65-F2A-1312-11-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 6.8 Watts when ΔT = 0 and a maximum ΔT of 72.9 °C at Qc = 0.
  • Miniature footprint
  • Precise temperature control
  • Reliable solid-state operation
  • No sound or vibration
  • 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 HEATSINK 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.

Laird Thermal Systems
OptoTEC™ OTX Series OTX15-65-F2A-1312-11-W2.25
MFG Part Number: 387006847

Laird Thermal Systems
OptoTEC™ OTX Series OTX15-65-F2A-1312-11-W2.25
MFG Part Number: 387006847
Hot Side Temperature
27.0 °C
50.0 °C
80.0 °C
Qcmax (ΔT = 0)
6.8 Watts
7.3 Watts
7.9 Watts
ΔTmax (Qc = 0)
Imax (I @ ΔTmax)
1.5 Amps
1.5 Amps
1.4 Amps
Vmax (V @ ΔTmax)
7.6 Volts
8.4 Volts
9.5 Volts
Module Resistance
4.68 Ohms
5.26 Ohms
6.02 Ohms
Max Operating Temperature
120 °C
2.0 gram(s)

* Specifications reflect thermoelectric coefficients updated March 2020

Finishing Options
Flatness / Parallelism
Hot Face
Cold Face
Lead Length
2.438 ±0.127 mm
0.096 ± 0.0050 in
0.051 mm / 0.051 mm
0.002 in / 0.002 in
50.8 mm
2.00 in

Sealing Options
Temp Range
No sealing specified

  1.  Max operating temperature: 120°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 Laird 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 Laird. All specifications are subject to change without notice. Laird assumes no responsibility and disclaims all liability for losses or damages resulting from use of or reliance on this information. All Laird products are sold subject to the Laird Terms and Conditions of sale (including Laird’s limited warranty) in effect from time to time, a copy of which will be furnished upon request.

© Copyright 2019-2023 Laird Thermal Systems, Inc. All rights reserved. Laird™, the Laird Ring Logo, and Laird Thermal Systems™ are trademarks or registered trademarks of Laird Limited or its subsidiaries.

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

Revision: 00 Date: 06-01-2022

Print Date: 10-02-2023