This is a 
TFPT0805L4701FV PTC Thermistor , 4.7 kohm, SMD, 40 VDC, -1% to +1%, TFPT Series product from VISHAY with the model number TFPT0805L4701FV
Other details
| Brand | VISHAY | 
| Part Number | TFPT0805L4701FV | 
| Quantity | Each (Supplied on Cut Tape) | 
| Technical Data Sheet EN |  | 
| One Page Summary EN |  | 
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