40x40mm Thermoelectric Cooling Module

This thermoelectric cooler has external dimensions of 40 mm × 40 mm × 3.8 mm and is constructed using semiconductor thermoelectric materials. Full perimeter sealing is achieved via standard 704 silicone rubber, providing environmental protection and mechanical integrity. Electrical rating: 12 V DC (absolute maximum 15.5 V); draws up to 5 A when powered at rated voltage. Measured internal resistance: 2.4–2.7 Ω (at 23 ±1°C, 1 kHz AC). Peak cooling output (Qcmax): 45 W. Maximum achievable temperature differential (ΔTmax) exceeds 61°C under no-load conditions. To maintain performance and prevent delamination, apply consistent mounting pressure of 85 N/cm². Usable across ambient temperatures from -55°C to +83°C — although net cooling effect reduces notably as ambient exceeds 30°C, in line with thermoelectric physics. Leads: 100 ±5 mm length, RV-standard single-core, tin-plated for durability and solder compatibility. Includes one TEC1-12705 module only — no ancillaries provided.