RMT Ltd. Thermoelectric Sub-mount Datasheet Performance parameters Mounted TEC Type DTmax, Qmax, Imax, Umax, 2MX04-043-1005 K W A V Rt, K/W H, mm 90 1.42 1.0 3.50 0.06 3.2 Perfomance data are given for Thot=300K vacuum Technical Drawing Ordering Options A. Header material Kovar B. Header nish 1. Gold plating 2. Ni plating C. TEC Mounting 1. Soldering 1.1 Solder 117 (InSn, Tmelt=117°C) 1.2 Solder 138 (SnBi, Tmelt=138°C) 1.3 Solder 183 (PbSn, Tmelt=183°C) 1.4 Solder 199 (SnZn, Tmelt=199°C) 2. Epoxy gluing D. TEC Leads Connection E. TEC Ceramics 1. Pure Al2O3 (100%) - standard 2. Alumina (Al2O3 - 96%) - optional 3. Aluminum Nitride (AlN) - optional F. TEC Cold Side Finish 1. Clear ceramics 2. Metallized 2.1 Ni / Sn(Bi) 2.2 Gold plating 3. Metallized and Pre-tinned 3.1 Solder 94 (PbSnBi,Tmelt=94°C) 3.2 Solder 117 (InSn,Tmelt=117°C) 3.3 Solder 138 (SnBi,Tmelt=138°C) 3.4 Solder 183 (PbSn,Tmelt=183°C) 3.5 Solder 199 (SnZn, Tmelt=199°C) G. Thermistor (optional) NTC thermistor type TB Resistance nominal 1. 2.2 kOhm@20C 2 10.0 kOhm@20C Individual calibration is avaiable in -65..+85°C H. Thermistor Mounting Epoxy Gluing I. Thermistor Leads Connect Solder 230 (SnSb, Tmelt=230°C) J. Pinout conguration Can be specied by customer Solder 230 (SnSb, Tmelt=230°C) Copyright 2007. RMT Ltd. The design and specications of products can be changed by RMT Ltd. without notice. 186 RMT Ltd. Thermoelectric Sub-mount Datasheet TO812.2MX040431005 Standard Performance Plots Color Legend: Imax, 0.8 Imax, 0.6 Imax, 0.4 Imax Applications Tips Cautions 1. Do not heat TE module more than 200oC (TEC assembled 3. Connect TE sub-mount to a DC power supply in at 230oC) or 160oC (TEC assembled at 183oC). acccordance to polarity. 2. Do not use TE module without attached heat sink at hot 4. Do not apply DC current higher than Imax. (bottom) side. Installation Object to be cooled 1. Soldering of object to be cooled. Method suitable for a TE module with the metallized cold side (Ordering Options. Item F). Soldering requires careful procedures: A. Never overheat TEC (Cautions. Item 1). B. Use solder with melting point less than TEC mounting solder (Ordering Options. Item C). Mounting 2. Gluing of object to be cooled. Method available by glues with good thermoconductive properties. Not recommended for high vacuum aplications and long operations TEC at high temperature. Header Denitions Value DTmax Qmax Imax Umax Rt -xx Thot H Description Maximum temperature difference at I=Imax Maximum heat pumping capacity at I=Imax Maximum current Maximum voltage drop Header thermal resistance Thermoelectric pellet length code TEC hot side temperature Total TEC height Notes rated at Qmax=0, at other Q it should be estimated as DT=DTmax(1-Q/Qmax) rated at DT=0, at other DT it should be estimated as Q=Qmax(1-DT/DTmax) Electric parameters resulting in greatest DTmax Pellet length is "-xx" x 10 (in mm) Performance data shown in specications are given for Thot=300 K, vacuum All dimensions are given in mm Copyright 2007. RMT Ltd. The design and specications of products can be changed by RMT Ltd. without notice. 187