Diodes SMD Type Surface Mount Fast Switching Diode KAS21T(BAS21T) SOT-523 Features Unit: mm +0.1 1.6-0.1 +0.1 1.0-0.1 +0.05 0.2-0.05 +0.01 0.1-0.01 2 1 +0.15 1.6-0.15 For General Purpose Switching Applications 0.55 Fast Switching Speed +0.05 0.8-0.05 Ultra-Small Surface Mount Package High Conductance 0.35 3 +0.25 0.3-0.05 0.5 +0.1 -0.1 +0.1 0.8-0.1 +0.05 0.75-0.05 1. Base 2. Emitter 3. Collecter Absolute Maximum Ratings Ta = 25 Symbol Rating Peak repetitive reverse voltage Parameter VRRM 250 Working peak reverse voltage Unit V VRWM 200 DC blocking voltage VR 200 RMS reverse voltage VR(RMS) 141 V IO 200 mA IFM 400 mA Average rectified output current Forward Continuous Current Non-Repetitive Peak Forward Surge Current @ t = 1.0 s IFSM @ t = 1.0s 0.5 A IFRM 625 mA PD 150 mW RèJA 833 /W Tj,Tstg -65 to +150 Repetitive Peak Forward Surge Current Power dissipation Typical Thermal Resistance Junction to Ambient Operating and storage temperature range 2.5 Electrical Characteristics Ta = 25 Parameter Symbol Maximum Forward Voltage Maximum Peak Reverse Current VFM IRM Testconditons Min Typ Max IF = 100mA 1.0 IF = 200mA 1.25 Tj = 25 100 Unit V nA Tj = 100 15 A Junction Capacitance CJ VR = 0, f = 1.0MHz 5.0 pF Reverse Recovery Time trr IF = IR = 30mA,Irr = 0.1 X IR, RL = 100 50 ns @ Rated DC Blocking Voltage Marking Marking T3 www.kexin.com.cn 1