What is a multi-stage thermoelectric module?
EVERREDtronics manufactures multi-stage Peltier modules for applications that need a significantly larger temperature differential than a single-stage module can reach. We offer 2 stages, 3 stages, up to a maximum of 6 stages, with a maximum ΔT of up to 107°C. These multi-stage TECs are suitable for low-temperature applications where a moderate cooling capacity is required. Typical applications include IR detectors, CCD arrays, and electro-optics.
You need a multi-stage module when one stage cannot reach the temperature differential you need. A single-stage module reaches roughly 63–71°C ΔTmax at zero heat load; multi-stage modules stack stages to go colder, up to 107°C ΔTmax in this range.
All our products are RoHS compliant. Parameters in the table are measured at Thot = 30°C.
Terms: Imax — maximum input current in amperes at Qc = 0 and ΔTmax; Vmax — maximum DC input voltage in volts at Qc = 0 and Imax; ΔTmax — maximum temperature differential in °C at Qc = 0 and Imax; Qcmax — maximum heat pumping capacity in watts at Imax and ΔT = 0; Thot — temperature of the TEC hot side during operation.
What multi-stage solves
Multi-stage modules solve low-temperature cooling where a moderate cooling capacity is required and a single-stage module cannot reach the temperature differential. Typical applications are:
- IR detectors
- CCD arrays
- Electro-optics
How to choose
A single-stage module reaches roughly 63–71°C ΔTmax at zero heat load. When the application needs a larger differential, stages are stacked: each stage pumps the heat rejected by the stage above it, so each stage grows toward the hot side. Tell us the target cold-side temperature, the heat load, and the hot-side temperature you can hold, and we will confirm the stage count and footprint for your duty point.
At a glance:
- Single-stage: roughly 63–71°C ΔTmax at zero heat load.
- Multi-stage: 2 to 6 stages, with a maximum ΔT of up to 107°C.
What to send us for a quote
To confirm the stage count and footprint for your duty point, send us:
- Target cold-side temperature
- Heat load
- Hot-side temperature you can hold
- Footprint
Specifications are confirmed per project. Contact us for datasheets.
Product table
Use the table below to compare Imax, ΔTmax, Vmax, Qcmax, AC resistance, stage footprints and height for each model. Parameters are measured at Thot = 30°C.
| Item | Part number | Imax (A) | ΔTmax (°C) | Vmax (V) | Qcmax (W) | AC resistance (Ω) | Stage | Dimensions W×L (mm) | H (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | TEC2-04804 | 4.0 | ≥70 | 4.0 | 5.8 | 0.65–0.85 | 1 / 2 | 15×15 / 20×20 | 7.0 |
| 2 | TEC2-15804 | 4.0 | ≥70 | 13.3 | 28.0 | 2.20–2.60 | 1 / 2 | 20×20 / 40×40 | 6.9 |
| 3 | TEC2-15806 | 6.0 | ≥70 | 13.3 | 41.0 | 1.75–1.85 | 1 & 2 | 40×40 | 7.8 |
| 4 | TEC2-15808 | 8.0 | ≥70 | 13.3 | 54.0 | 1.50–1.70 | 1 & 2 | 40×40 | 7.6 |
| 4 | TEC2-16504 | 4.0 | ≥75 | 12.0 | 28.0 | 2.30–2.70 | 1 & 2 | 40×40 | 6.8 |
| 5 | TEC2-19003 | 3.0 | ≥80 | 16.0 | 15.0 | 3.30–3.70 | 1 & 2 | 40×40 | 7.0 |
| 5 | TES2-19003 | 3.0 | ≥80 | 16.0 | 15.0 | 3.30–3.70 | 1 & 2 | 30×30 | 6.3 |
| 6 | TEC2-10204 | 4.0 | ≥85 | 8.6 | 12.7 | 1.60–1.90 | 1 / 2 | 20×20 / 30×30 | 6.9 |
| 7 | TEC2-19004 | 4.0 | ≥80 | 16.0 | 24.0 | 2.90–3.20 | 1 & 2 | 40×40 | 7.0 |
| 8 | TEC2-19006 | 6.0 | ≥80 | 16.0 | 36.0 | 2.00–2.40 | 1 & 2 | 40×40 | 6.4 |
| 9 | TEC2-19008 | 8.0 | ≥80 | 16.0 | 45.0 | 1.70–2.00 | 1 & 2 | 40×40 | 6.0 |
| 10 | TEC2-19709 | 9.0 | ≥75 | 16.0 | 55.0 | 1.30–1.50 | 1 & 2 | 62×62 | 8.8 |
| 11 | TEC2-19804 | 4.0 | ≥80 | 16.0 | 22.4 | 2.80–3.20 | 1 & 2 | 40×40 | 7.6 |
| 12 | TEC2-19806 | 6.0 | ≥80 | 16.0 | 32.4 | 2.10–2.50 | 1 & 2 | 40×40 | 6.9 |
| 13 | TEC2-19808 | 8.0 | ≥80 | 16.0 | 42.9 | 1.55–1.90 | 1 & 2 | 40×40 | 6.4 |
| 14 | TEC3-11904 | 3.6 | ≥85 | 7.8 | 6.5 | 1.90–2.10 | 1 / 2 / 3 | 15×15 / 20×20 / 30×30 | 10.4 |
| 15 | TEC3-11906 | 6.0 | ≥85 | 7.8 | 10.0 | 1.20–1.50 | 1 / 2 / 3 | 15×15 / 20×20 / 30×30 | 9.0 |
| 16 | TEC3-22903 | 3.0 | ≥90 | 16.0 | 11.1 | 4.30–4.60 | 1 / 2 / 3 | 20×20 / 30×30 / 40×40 | 10.8 |
| 17 | TEC3-22904 | 4.0 | ≥90 | 16.0 | 13.0 | 2.40–2.70 | 1 / 2 / 3 | 25×25 / 38×38 / 50×50 | 12.4 |
| 18 | TEC3-22908 | 8.0 | ≥90 | 16.0 | 26.4 | 1.45–1.80 | 1 / 2 / 3 | 25×25 / 38×38 / 50×50 | 10.5 |
| 19 | TEC4-24603 | 3.0 | ≥107 | 14.6 | 6.8 | 3.90–4.30 | 1 / 2 / 3 / 4 | 15×15 / 20×20 / 30×30 / 40×40 | 13.6 |
| 20 | TEC4-24606 | 6.0 | ≥107 | 14.6 | 13.5 | 2.70–3.00 | 1 / 2 / 3 / 4 | 15×15 / 20×20 / 30×30 / 40×40 | 11.8 |
| 21 | TEC4-24608 | 8.0 | ≥107 | 14.6 | 17.0 | 1.90–2.20 | 1 / 2 / 3 / 4 | 20×20 / 30×30 / 40×40 / 50×50 | 13.7 |
| 22 | TEC6-60506 | 6.0 | ≥100 | 30.0 | 10.0 | 4.50–5.50 | 1 / 2 / 3 / 4 / 5 / 6 | 20×20 / 30×30 / 40×40 / 50×50 / 55×55 / 62×62 | 23.0 |
Common specifications
All multi-stage modules in this range share the following common specifications:
- Operating temperature range: -50 to 100°C
- Flatness: ±0.05 mm
- Height tolerance: ±0.2 mm
- Maximum compressive load: 1 MPa
- Lead wire: 150 mm as default
- Sealing: silicone gel seal; please specify if no sealing is requested.
Frequently asked questions
Answers to common questions about multi-stage TEC modules:
When one stage cannot reach the temperature differential you need. A single-stage module reaches roughly 63–71°C ΔTmax at zero heat load; multi-stage modules stack stages to go colder, up to 107°C ΔTmax in this range.
2, 3, 4, up to 6 stages. The stage count, stage areas and couple counts are chosen for your cold plate, heat load and supply.
The target cold-side temperature, the heat load, and the hot-side temperature you can hold. Specifications are confirmed per project.
Contact us for datasheets.
Questions about a duty point? Contact us — tell us the target cold-side temperature, the heat load, and the hot-side temperature you can hold, and we will confirm the stage count and footprint for your duty point.