Marking SMD, SMD Codes 210, 2131.

Datasheets KTY82/210, TA2131FL.
SMD CodePackageDevice NameManufacturerDataDatasheet
210SOT23KTY82/210NXP Semiconductors Silicon temperature sensorDownload datasheet
2131QON24-PTA2131FLTOSHIBALow Current Consumption Headphone AmplifierDownload datasheet