OptoTEC™ MBX Series
The MBX Series of micro thermoelectric coolers support high-temperature applications with compact geometric space constraints. MBX delivers precise temperature stabilization under changing environmental conditions.

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The MBX Series offers micro footprints as small as 1.6 x 1.6mm with thicknesses down to 0.9mm. The packing fraction for thermoelectric materials enables high heat pumping densities up to 27 W/cm2 at lower operating currents than traditional thermoelectric coolers.
The compact MBX Series is designed for use in
- Next-generation LiDAR systems for autonomous vehicles
- Pluggable optical transceivers for telecom
- Indium Phosphide VCSELs used in various high-performance applications
The applications for this product series tend to be highly customized requiring unique ceramic substrate materials and thicknesses.
Two solder constructions are available to accommodate reflow temperatures up to 230°C or 280ºC. MBX is offered in Au-plated pads or wire bondable posts.
Series (Solder Construction)
Model | Solder Type | Melt Temp |
---|---|---|
MBX | (SnSb) Tin Antimony | 232°C |
HBX | (AuSn) Gold Tin | 280°C |
Ceramic Materials
Solder Type | Thermal Conductivity | Option |
---|---|---|
(ALO) Alum Oxide | 24 W/mK | F2 |
(ALN) Alum Nitride | 170 W/mK | F2N |
Surface Finish Options
Solder Type | Melt Temp | Option |
---|---|---|
Au plating (Hot/Cold Surface) | GG | |
Non-Metallized Hot and/or Cold face | 11 | |
Pre-tinning Hot and/or Cold face with 118˚C InSn Solder | 118˚C | 22 |
Pre-tinning Hot and/or Cold face with 138˚C BiSn Solder | 138˚C | 33 |
Lead Attachment
Solder Type | Option |
---|---|
Au plated pads | W0 |
Au plated Posts | WP |
Advanced automation with high precision improves TEC assembly methods and repeatability:
- Increases performance, (Qc, ∆T)
- Extends reliability
- Improves cost structure
- Packing density increases exponentially from the standard packing fraction of bulk TEMs
DICE DENSITY VS WIDTH