Diodes SMD Type Schottky Barrier Diodes KB491D(RB491D) SOT-23 Unit: mm +0.1 2.9-0.1 +0.1 0.4-0.1 1 Low reverse current and low forward voltage. 0.55 Small surface mounting type. +0.1 1.3-0.1 +0.1 2.4-0.1 Features 0.4 3 2 +0.1 0.95-0.1 +0.1 1.9-0.1 +0.05 0.1-0.01 0-0.1 +0.1 0.38-0.1 +0.1 0.97-0.1 High reliability. 1.Base 2.Emitter 3.collector Absolute Maximum Ratings Ta = 25 Parameter Symbol Rating Unit Peak reverse voltage VRM 25 V DC reverse voltage VR 20 V Mean rectifying current IF 1 A A Peak forward surge current IFSM 3 Junction temperature Tj 125 Storage temperature Tstg -40 to +125 Electrical Characteristics Ta = 25 Max Unit Forward voltage Parameter Symbol VF IF=1A Testconditons Min Typ 0.45 V Reverse current IR VR=20V 200 ìA Marking Marking D2E www.kexin.com.cn 1 Diodes SMD Type KB491D(RB491D) Typical Characteristics 2 www.kexin.com.cn