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For complete documentation, view the LTC4257-1 page

Part Number* Description Package Pins Price (1-99) Price (100+) QTY
LTC4257CDD-1#PBF IEEE802.3af PD Interface Controller DFN 8 $2.59 $2.13
LTC4257CDD-1#TRPBF IEEE802.3af PD Interface Controller DFN 8
LTC4257CS8-1#PBF IEEE802.3af PD Interface Controller SO 8 $2.50 $2.06
LTC4257CS8-1#TRPBF IEEE802.3af PD Interface Controller SO 8
LTC4257IDD-1#PBF IEEE802.3af PD Interface Controller DFN 8 $2.95 $2.43
LTC4257IDD-1#TRPBF IEEE802.3af PD Interface Controller DFN 8
LTC4257IS8-1#PBF IEEE802.3af PD Interface Controller SO 8 $2.86 $2.35
LTC4257IS8-1#TRPBF IEEE802.3af PD Interface Controller SO 8

Demo Boards

Part Number* Description Price (1-99) QTY
DC671A LTC4257CS8-1 | Power-Over-Ethernet Interface Controller, Vsig = 48V, Vout = 3.3V $75.00 1

* When ordering part numbers ending in #TR or #TRM for quantities less than (or not an even multiple of) a full reel, parts will be shipped in bulk or cut tape