National Semiconductor P/N LM140K-15P+ 15 Volt Positive Voltage Regulator. TO-3 package, capable of 1A output. Employs internal current limiting, thermal shutdown, and safe-area compensation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents. THESE ARE NEW PARTS! We will gladly combine multiple item purchases to save you money on shipping costs! THIS ITEM USUALLY SHIPS WITHIN 24 HOURS OF PAYMENT! INTERNATIONAL BUYERS WELCOME! WE SHIP WORLDWIDE! Please use the "Ask seller a question" link to ask any questions before buying.