TEC1-12704 Semiconductor thermoelectric cooler 

Part number: TEC1-12704

Dimension: 40 * 40 * 4.0 mm components logarithmic
Wire specifications: 300 + / - 5 mm long RV lead wire single head 5 mm tin plating
Internal resistance value: 3.0 ~ 3.3 Ω (23 + / - 1 ℃, environment temperature 1 KHZ Ac test)
The largest temperature difference: delta Tmax (Qc = 0) more than 63 ℃.
Working current: Imax = 4 a (rated voltage startup)
Rated voltage: DC12V (Vmax: 15.5 V)
Cooling power: Qcmax 36 w
The assembly pressure: 85 n/cm2
Working conditions: temperature range and 55 ℃ ~ 83 ℃ (high environmental temperature will directly affect the cooling efficiency)
Encapsulation process: standard around 704 silicone rubber seal
Packing: bubble box packing, storing conditions - 10 ℃ to 40 ℃ ambient temperature
Storage conditions: - 40 ~ 60 ℃

Side with words is the cooling surface
No words on side is the radiating surface

12 v power supply requirements: a single voltage, current work more than 15 a power supply (can use series-parallel)

Device features: red line is anode, the black is cathode

Device features: red line is anode, the black is cathode