3MDC Sub-Series 3-stage thermoelectric coolers have high density pellets placement and specially expanded cold ceramics area. TE coolers have the same dimensions for top and bottom ceramics.
MDC Series consists of two sub-series - MDC04 and MDC06. The MDC04 sub-series has pellets of 0.4x0.4 mm2 cross-section; MDC06 - more powered sub-series - 0.6x0.6 mm2.