There are different thermoelectric coolers available for Cooled TOSA applications. All are from special MD TEC Series, developed by RMT with high density pellets placement.
TOSA Header
Thermoelectric Cooler
A.Header Material
Base -Kovar, CuW
B.Header Surface Finish
Gold Plating
C.TEC Mounting
1. Soldering
a.Solder 138, Sn-Bi, Tmelt=138ºC
b.Solder 199, Sn-Zn, Tmelt=199ºC
3. Epoxy Gluing
D.TEC Leads Connections
Soldering Sn-Sb, Tmelt=230ºC
E.TEC Cold Side Finish
1.Blank Ceramics
2.Metallized Ceramics
a.Ni/Sn plating
b.Au plating
3.Metallized and Pre-tinned
a.Solder 117, In-Sn, Tmelt=117ºC
b.Solder 138, Sn-Bi, Tmelt=138ºC
F.Thermistor (Optional)
RMT’s TB type NTC thermistor
1.10kOhm@20C, 5%
2.2.2kOhm@20C, 5%
Individual calibration available
Mounting by Epoxy Gluing
TOSA 9pin 2.5Gb
with Sapphire Window
TEC to Header
Mounting (Soldering)
TEC WB Solution
Available with or without WB Posts
TOSA 9pin 2.5Gb
with ball Lense
TOSA 8pin 10Gb
with ball Lense
Dimensions are in millimeters
Click here to explore all available sub-mounts with detailed datasheets
© TEC Microsystems GmbH 2010
‣Low form factor packages meet the high performance requirements for 2.5Gb/s & 10Gb/s Transmitter Optical Sub-Assembly (TOSA).
‣Ultra compact design compliant with XMD MSA standard package definition.
‣Solutions with miniature single-stage TE COOLERS are possible.
‣The sub-mount base thermal resistance is relatively small
‣The mounting methods are soldering or gluing.