Tdk lambda ls series enclosed power supply chassis mount tdk lambda ls200 7 the tdk lambda ls200 7 belongs to the manufacturers ls200 series of single output ac dc power supplies the tdk lambda is offered with a 3 year manufacturer warranty with a mtbf of 700000 hrs it offers superior reliability and its broad operating temperature range makes the ls200 7 suitable for installation in indooroutdoor enclosures at temperatures above 50degc the psu offers a lower derate with up to 70