Legacy Products

Thermoelectric coolers for legacy designs

Several thermoelectric cooler product series have been superseded by improved thermoelectric cooler offerings. Listed below are our legacy products that are not recommended for new designs. Click Legacy Stock to view available stock from our authorized distributors. Click Buy Replacement to find product replacements, or Contact Sales for assistance when no standard replacement is available.

OT Series

	Legacy MFG Part Number Click MFG Part # for Product Page	Legacy Part Description Click Description for PDF Datasheet	Product Status		Qc Max ΔT=0 °C	Replacement MFG Part Number Click MFG Part # for Product Page	Replacement Description Click Description for PDF Datasheet
			Not Recommended for New Designs		0.2 W
			Not Recommended for New Designs		0.2 W
			Not Recommended for New Designs		0.4 W
			Not Recommended for New Designs		0.4 W
			Not Recommended for New Designs		0.5 W
			End of Life		0.5 W
			Not Recommended for New Designs		0.5 W
			Not Recommended for New Designs		0.9 W
			Not Recommended for New Designs		0.9 W
			Not Recommended for New Designs		0.9 W
			End of Life		0.9 W
			Not Recommended for New Designs		0.9 W
			End of Life		1.3 W
			Not Recommended for New Designs		1.3 W
			Not Recommended for New Designs		1.3 W
			Not Recommended for New Designs		1.3 W
			Not Recommended for New Designs		1.3 W
			End of Life		1.5 W
			End of Life		1.5 W
			Not Recommended for New Designs		1.5 W
			Not Recommended for New Designs		1.6 W
			Not Recommended for New Designs		1.6 W
			Not Recommended for New Designs		2.8 W
			End of Life		2.8 W
			Not Recommended for New Designs		2.8 W
			Not Recommended for New Designs		3.3 W
			Not Recommended for New Designs		3.3 W
			Not Recommended for New Designs		3.3 W
			Not Recommended for New Designs		3.7 W
			End of Life		3.7 W
			Not Recommended for New Designs		3.7 W
			Not Recommended for New Designs		3.9 W
			Not Recommended for New Designs		3.9 W
			Not Recommended for New Designs		4 W
			Not Recommended for New Designs		4 W
			Not Recommended for New Designs		4 W
			Not Recommended for New Designs		4 W
			Not Recommended for New Designs		4.6 W
			Not Recommended for New Designs		4.6 W
			Not Recommended for New Designs		4.9 W
			Not Recommended for New Designs		4.9 W
			Not Recommended for New Designs		4.9 W
			End of Life		4.9 W
			Not Recommended for New Designs		6.2 W
			End of Life		6.2 W
			Not Recommended for New Designs		8.2 W
			Not Recommended for New Designs		8.2 W
			Not Recommended for New Designs		8.2 W

ET Series

	Legacy MFG Part Number Click MFG Part # for Product Page	Legacy Part Description Click Description for PDF Datasheet	Product Status		Qc Max ΔT=0 °C	Replacement MFG Part Number Click MFG Part # for Product Page	Replacement Description Click Description for PDF Datasheet
			Not Recommended for New Designs		1.4 W
			Not Recommended for New Designs		1.7 W
			Not Recommended for New Designs		2.5 W
			Not Recommended for New Designs		2.9 W
			End of Life		2.9 W
			Not Recommended for New Designs		2.9 W
			Not Recommended for New Designs		2.9 W
			Not Recommended for New Designs		3.1 W
			Not Recommended for New Designs		3.1 W
			Not Recommended for New Designs		3.1 W
			Not Recommended for New Designs		3.1 W
			Not Recommended for New Designs		3.1 W
			Not Recommended for New Designs		3.4 W
			Not Recommended for New Designs		3.9 W
			Not Recommended for New Designs		3.9 W
			Not Recommended for New Designs		4 W
			Not Recommended for New Designs		4 W
			Not Recommended for New Designs		4 W
			Not Recommended for New Designs		4.3 W
			Not Recommended for New Designs		4.3 W
			Not Recommended for New Designs		4.3 W
			Not Recommended for New Designs		4.3 W
			Not Recommended for New Designs		4.3 W
			Not Recommended for New Designs		4.3 W
			Not Recommended for New Designs		5 W
			Not Recommended for New Designs		5 W
			Not Recommended for New Designs		5 W
			Not Recommended for New Designs		6.3 W
			Not Recommended for New Designs		7.3 W
			Not Recommended for New Designs		7.7 W
			Not Recommended for New Designs		7.9 W
			Not Recommended for New Designs		8.4 W
			Not Recommended for New Designs		8.8 W
			Not Recommended for New Designs		8.8 W
			Not Recommended for New Designs		8.8 W
			Not Recommended for New Designs		10.6 W
			Not Recommended for New Designs		11.8 W
			Not Recommended for New Designs		15.5 W
			Not Recommended for New Designs		17.1 W
			Not Recommended for New Designs		17.4 W
			Not Recommended for New Designs		18.1 W
			Not Recommended for New Designs		18.9 W
			Not Recommended for New Designs		19.7 W
			Not Recommended for New Designs		20.1 W
			Not Recommended for New Designs		21 W
			Not Recommended for New Designs		23.4 W
			Not Recommended for New Designs		27.8 W
			Not Recommended for New Designs		28.2 W
			Not Recommended for New Designs		28.2 W
			Not Recommended for New Designs		31.2 W
			Not Recommended for New Designs		32.4 W
			Not Recommended for New Designs		32.4 W
			Not Recommended for New Designs		39.2 W
			Not Recommended for New Designs		48.4 W
			Not Recommended for New Designs		49.6 W
			Not Recommended for New Designs		65 W
			Not Recommended for New Designs		70 W
			Not Recommended for New Designs		74.9 W
			Not Recommended for New Designs		75.8 W
			Not Recommended for New Designs		90.3 W
			Not Recommended for New Designs		115.7 W
			Not Recommended for New Designs		119.3 W
			Not Recommended for New Designs		159.1 W
			Not Recommended for New Designs		238.4 W
			Not Recommended for New Designs		283.7 W

PC/PCX Series

	Legacy MFG Part Number Click MFG Part # for Product Page	Legacy Part Description Click Description for PDF Datasheet	Product Status		Qc Max ΔT=0 °C	Replacement MFG Part Number Click MFG Part # for Product Page	Replacement Description Click Description for PDF Datasheet
			Not Recommended for New Designs		32.2 W
			Not Recommended for New Designs		32.2 W
			Not Recommended for New Designs		50.6 W
			Not Recommended for New Designs		50.6 W
			Not Recommended for New Designs		50.8 W
			Not Recommended for New Designs		50.8 W
			Not Recommended for New Designs		71 W
			Not Recommended for New Designs		71 W
			Not Recommended for New Designs		73.6 W
			Not Recommended for New Designs		73.6 W
			Not Recommended for New Designs		112 W
			Not Recommended for New Designs		112 W
			End of Life		136.9 W
			Not Recommended for New Designs		157.8 W
			Not Recommended for New Designs		198.3 W
			End of Life		221.4 W

UT Series

	Legacy MFG Part Number Click MFG Part # for Product Page	Legacy Part Description Click Description for PDF Datasheet	Product Status		Qc Max ΔT=0 °C	Replacement MFG Part Number Click MFG Part # for Product Page	Replacement Description Click Description for PDF Datasheet
			Not Recommended for New Designs		49.1 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		63.8 W
			Not Recommended for New Designs		77 W
			Not Recommended for New Designs		77 W
			Not Recommended for New Designs		77 W
			Not Recommended for New Designs		88.7 W
			Not Recommended for New Designs		88.7 W
			Not Recommended for New Designs		88.7 W
			Not Recommended for New Designs		88.7 W
			Not Recommended for New Designs		88.7 W
			Not Recommended for New Designs		93.2 W
			Not Recommended for New Designs		93.2 W
			Not Recommended for New Designs		93.2 W
			Not Recommended for New Designs		108.4 W
			Not Recommended for New Designs		117.1 W
			Not Recommended for New Designs		117.1 W
			Not Recommended for New Designs		117.1 W
			Not Recommended for New Designs		117.1 W
			Not Recommended for New Designs		117.1 W
			Not Recommended for New Designs		130.7 W
			Not Recommended for New Designs		156.1 W
			Not Recommended for New Designs		182.6 W
			Not Recommended for New Designs		182.6 W
			Not Recommended for New Designs		193.4 W
			Not Recommended for New Designs		193.4 W
			Not Recommended for New Designs		193.4 W
			Not Recommended for New Designs		193.4 W
			Not Recommended for New Designs		234 W
			Not Recommended for New Designs		234 W
			Not Recommended for New Designs		234 W
			Not Recommended for New Designs		234 W
			Not Recommended for New Designs		278.5 W
			Not Recommended for New Designs		278.5 W
			Not Recommended for New Designs		278.5 W

ZT Series

	Legacy MFG Part Number Click MFG Part # for Product Page	Legacy Part Description Click Description for PDF Datasheet	Product Status		Qc Max ΔT=0 °C	Replacement MFG Part Number Click MFG Part # for Product Page	Replacement Description Click Description for PDF Datasheet
			Not Recommended for New Designs		18.6 W
			Not Recommended for New Designs		18.6 W
			Not Recommended for New Designs		18.6 W
			Not Recommended for New Designs		18.6 W
			Not Recommended for New Designs		29 W
			Not Recommended for New Designs		29 W
			Not Recommended for New Designs		33.3 W
			Not Recommended for New Designs		33.3 W
			Not Recommended for New Designs		33.3 W
			Not Recommended for New Designs		33.3 W
			Not Recommended for New Designs		51.9 W
			Not Recommended for New Designs		51.9 W
			Not Recommended for New Designs		51.9 W
			Not Recommended for New Designs		55.3 W
			Not Recommended for New Designs		55.3 W
			Not Recommended for New Designs		72.6 W
			Not Recommended for New Designs		72.6 W
			Not Recommended for New Designs		72.6 W
			Not Recommended for New Designs		72.9 W
			Not Recommended for New Designs		72.9 W
			Not Recommended for New Designs		72.9 W

ThermaTEC™ Series

Legacy MFG Part Number Click Part # for PDF Datasheet	Legacy Part Description Click Description for PDF Datasheet	Product Status	Qc Max ΔT=0 °C
430138-513	HT2-12-F2-3030-TA-W6	Not Recommended for New Designs	18.9 W
430139-513	HT3-12-F2-3030-TA-W6	Not Recommended for New Designs	23.4 W
430141-512	HT4-12-F2-4040-TA-W6	Not Recommended for New Designs	31.2 W
430028-509	HT4-6-F2-2143-TA-W6	Not Recommended for New Designs	15.6 W
430820-501	HT4-7-F2-3030-TA-W6	Not Recommended for New Designs	17.4 W
430285-506	HT6-12-F2-4040-TA-W6	Not Recommended for New Designs	48.4 W
430144-512	HT6-7-F2-3030-TA-W6	Not Recommended for New Designs	27.8 W
430160-502	HT8-12-F2-4040-TA-W6	Not Recommended for New Designs	70 W
430362-508	HT8-7-F2-3030-TA-W6	Not Recommended for New Designs	39.2 W
430134-516	HT9-3-F2-2525-TA-W6	Not Recommended for New Designs	19.7 W

OptoTEC™ HOT Series

Legacy MFG Part Number Click Part # for PDF Datasheet	Legacy Part Description Click Description for PDF Datasheet	Product Status	Qc Max ΔT=0 °C
430037-501	HOT12-18-F2A-0606-11-W2.25	Not Recommended for New Designs	1.5 W
430104-501	HOT12-65-F2A-1312-11-W2.25	Not Recommended for New Designs	5.8 W
430039-501	HOT20-31-F2A-0909-11-W2.25	Not Recommended for New Designs	4.2 W
430040-501	HOT20-65-F2A-1312-11-W2.25	Not Recommended for New Designs	9.7 W

* Any information furnished by Laird Thermal Systems and its agents is believed to be accurate and reliable. All specifications are subject to change without notice.