View 10bq040 datasheet:

Bulletin PD-2.397 rev. D 02/02 10BQ040 SCHOTTKY RECTIFIER 1 Amp SMB Major Ratings and Characteristics Description/Features The 10BQ040 surface-mount Schottky rectifier has been de- signed for applications requiring low forward drop and very small Characteristics 10BQ040 Units foot prints on PC boards. Typical applications are in disk drives, switching power supplies, converters, free-wheeling diodes, IF(AV) Rectangular waveform 1.0 A battery charging, and reverse battery protection. Small foot print, surface mountable VRRM 40 V Low forward voltage drop High frequency operation IFSM @ tp = 5 µs sine 430 A Guard ring for enhanced ruggedness and long term reliability VF @ 1.0 Apk, TJ=125°C 0.49 V TJ range - 55 to 150 °C CATHODE ANODE Device Marking: IR1F 1 2 2.15 (.085