New thermoelectric generator modules deliver higher power from temperature differences, offering compact energy recovery for industrial processes and other applications where otherwise wasted heat is available.
Same Sky has expanded its SPG family of thermoelectric generator (TEG) modules, adding configurations capable of producing up to 27.3 W of electrical power. The modules are designed to convert an existing temperature difference into usable electrical energy, making them suitable for systems where heat is available but would otherwise be dissipated.
The SPG thermoelectric generator modules operate by exploiting the temperature difference between their hot and cold sides. When installed across a suitable thermal gradient, the modules generate electrical power without requiring a conventional mechanical energy-conversion stage. This makes the technology relevant to waste-heat recovery, particularly in industrial equipment and processes where significant heat is continuously generated.
The key features are:
- Output power up to 27.3 W
- Package sizes from 30 × 30 mm to 80 × 80 mm
- Profiles as low as 3.5 mm
- Continuous hot-side operation up to 300°C
- Graphite pad options simplify thermal integration
The expanded range covers package dimensions from 30 × 30 mm to 80 × 80 mm, allowing designers to select a module according to available thermal interface area and power requirements. The modules also use silicone sealing, while graphite pad options are available to simplify the thermal interface between the generator and the surrounding thermal system.
Under the specified test condition of a 300°C hot side and 30°C cold side, the SPG range provides open-circuit voltages between 8 and 17.7 Vdc. Matched-load operation produces 4 to 8.8 V, with output currents ranging from 1 to 5.7 A. The modules accommodate heat flow across the module from 90 to 525 W, with heat-flow density reaching 13.2 W/cm².
For system designers, the technology can support industrial waste-heat recovery and other energy-harvesting applications, particularly where a persistent temperature gradient is available. Recovering part of this otherwise lost thermal energy can provide a local electrical source for suitable electronics or energy-management systems. The product designation provided in the source is SPG thermoelectric generator (TEG) modules; an individual model or IC number is not specified. The modules are listed with availability ranging from stock to nine weeks, with pricing starting at $49.55 per unit for 25 pieces through distribution.
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