New thermoelectric Peltier module made by Tellurex Corp model CZ1-.53-31-1.27-HT. Ideal for cooling laser diodes, crystals, detectors, and more. This module has a gold plated surfaces on both the hot and cold side BeO substrate.

Specifications:

Voltage: 3.9 VDC max.
Current: 1.1 Amps max.
Heat Pump: 2.7 Watts Q max.
Input leads: Solder tabs. The positive is the outside corner tab.
Dimensions: 13 x 9 x 4 mm, cold surface is 9 x 9 mm