Tdk lambda ls series enclosed power supply chassis mount tdk lambda ls150 5 the tdk lambda ls150 5 belongs to the manufacturers ls150 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 ls150 5 suitable for installation in indooroutdoor enclosures at temperatures above 50degc the psu offers a lower derate with up to 70