This part is a kind of semiconductor called BAT20JFILM.
Function of this product has HIGH EFFICIENCY SWITCHING AND ULTRA LOW LEAKAGE CURRENT SCHOTTKY DIODE.
Manufacturers : STMicroelectronics
Image and pinout :
Some of the text within the PDF file :
® BAT20J HIGH EFFICIENCY SWITCHING AND ULTRA LOW LEAKAGE CURRENT SCHOTTKY DIODE MAIN PRODUCT CHARACTERISTICS IF(AV) VRRM IR 25°C(max) @ 15V Tj (max) 1A 23 V 12 µA 150 °C A K FEATURES AND BENEFITS Low conduction losses Very low reverse current Negligible switching losses Low capacitance diode Low forward and reverse recovery times Extremely fast switching Surface mount device ■ ■ ■ ■ ■ ■ ■ SOD-323 DESCRIPTION The BAT20J is using 23V schottky barrier diode encapsulated on a SOD-323 package. This is specially suited for switching mode in mobile phone and PDA power management applications or LED driver circuits (step up converters). ABSOLUTE RATINGS (limiting values) Symbol VRRM IF(RMS) IF(AV) IFSM Tstg Tj TL * : Parameter Repetitive peak reverse voltage Repetitive pe [ ... ]