Pro-Range TES1-7104 Thermoelectric Cooler Peltier Module - 23x23mm, 8.4V 4A, 18W Cooling

The module is rated for a maximum input power of approximately 33.6 Watts (8.4V * 4A). It is crucial to use a DC power supply or driver capable of delivering at least 8.4V and 4A continuously for optimal cooling performance. Exceeding these ratings may damage the semiconductor elements.

The TES1-7104 must be sandwiched between two heatsinks. The cold side (where heat is absorbed) requires a heatsink to dissipate the target heat load. The hot side (where heat is rejected) requires a more substantial heatsink, often with a fan, to dissipate both the absorbed heat and the electrical power consumed by the module. Use thermal paste and apply even pressure to ensure good thermal contact with both ceramic faces.

Yes. Cooling power is proportional to the input current. You can use a PWM-controlled DC driver or a variable voltage supply to modulate the current and fine-tune the cooling effect. Furthermore, by reversing the polarity of the DC power connections, the module will pump heat in the opposite direction, effectively turning it into a heater, which is useful for bidirectional temperature control systems.

The ΔTmax of 65°C indicates the maximum temperature difference the module can achieve between its hot and cold sides when the hot side is held at a specific temperature (typically 27°C) and no heat load is applied to the cold side (Qc = 0). Under real-world conditions with an applied heat load, the achievable ΔT will be lower. This parameter defines the module's peak thermodynamic performance.