Description
Here is the organized product description for the TEC2-19003 / TES2-19003 Double-Stage Mini Square Thermoelectric Peltier Cooler Module.
(Note: In thermoelectric nomenclature, part numbers starting with 190 or referencing “double” explicitly indicate a TEC2/TES2 multi-stage cascade architecture, which stacks two layers of Peltier couples to reach much lower freezing temperatures than a standard single-stage chip).
Product Overview
The TEC2-19003 is a specialized double-stage (two-tier cascade) thermoelectric Peltier module. Unlike standard single-stage modules that layer a single row of semiconductors between two ceramic plates, a double-stage module stacks a smaller Peltier matrix on top of a larger one.
This multi-layer architecture allows the heat rejected by the top stage to be immediately absorbed and pumped away by the bottom stage. The result is a massive temperature difference ($\Delta T_{max} \ge 80^\circ\text{C}$), enabling specialized sub-zero freezing and ultra-precise thermal management inside a compact 30mm x 30mm (3x3cm) footprint.
Technical Specifications
| Parameter | Specification |
| Model | TEC2-19003 / TES2-19003 |
| Architecture | Double-Stage (2-Tier Cascade) |
| Dimensions | $30\text{mm} \times 30\text{mm} \times 6.3\text{mm}$ to $7.0\text{mm}$ (Notably thicker than single-stage chips due to the stacked design) |
| Couples (P-N Junctions) | 190 |
| Max Current ($I_{max}$) | 3.0A |
| Max Voltage ($V_{max}$) | ~16.0V DC (Runs optimally on a regulated 12V DC power supply) |
| Max Cooling Power ($Q_{max}$) | ~15W |
| Max Temperature Difference ($\Delta T_{max}$) | $\ge 80^\circ\text{C}$ (Can achieve substantially deeper sub-zero freezes compared to standard modules) |
| Internal Resistance | ~3.30Ω to 3.70Ω |
Key Features
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Deep Freezing Cascade Capability: By utilizing a double-stage layout, this module breaks through the standard thermal barriers of single-stage units, pushing the cold side into strict sub-zero temperatures even with modest ambient conditions.
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Low Current Draw (3A): Designed to function at a maximum of 3 Amps, making it highly compatible with precise laboratory instruments, micro-controllers, and tightly regulated laboratory power benches.
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Compact 3x3cm Footprint: Maximizes depth of cooling in tight spaces, allowing it to seamlessly fit into compact analytical device enclosures or miniature cooling chambers.
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Solid-State Reliability: Silent, completely vibration-free operation with zero moving parts, eliminating the risks of mechanical failure or signal distortion in sensitive sensors.
Common Applications
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High-Sensitivity Imaging Devices: Cools scientific-grade CCD/CMOS camera sensors and deep-space astrophotography gear to drastically eliminate thermal noise and grain.
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Infrared (IR) & Laser Target Detectors: Cools military and laboratory infrared detectors and laser optical alignment systems to maintain calibrated wave performance.
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Medical & Laboratory Cold Storage: Perfect for precise biological sample freezing, microfluidic cell chilling blocks, and PCR thermal testing setups requiring extreme cold.
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Precision Gas Analyzers: Keeps precision condensation mirrors or sensor matrices cold to accurately analyze gas moisture levels.
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