Linear Technology LTC4257IS8-1#TR Applications: IP Phones, Power over LAN, Network Routers and Switches Current Limit: 350mA Internal Switch(s): Yes Lead Free Status / Rohs Status: Not Compliant Linear Misc Type: Negative Voltage Mounting: Surface Mount Mounting Type: Surface Mount Operating Supply Voltage (max): -57V Operating Temperature: -40?°C ~ 85?°C Operating Temperature (max): 85C Operating Temperature (min): -40C Operating Temperature Classification: Industrial Package / Case: 8-SOIC (0.154", 3.90mm Width) Package Type: SOIC N Pin Count: 8 Product Depth (mm): 3.99mm Product Height (mm): 1.5mm Product Length (mm): 5mm Type: Power over Ethernet Switch (PoE)