Diodes SMD Type Schottky barrier (double) diodes BAT721 series SOT-23 Unit: mm +0.1 2.9-0.1 +0.1 0.4-0.1 +0.1 1.3-0.1 +0.1 2.4-0.1 Features 0.4 3 1 Low forward current 0.55 Ultra high switching speed 2 +0.1 0.95-0.1 +0.1 1.9-0.1 Guard ring protected +0.05 0.1-0.01 1.Base 2.Emitter +0.1 0.38-0.1 0-0.1 +0.1 0.97-0.1 Small plastic SMD package 3.collector Absolute Maximum Ratings Ta = 25 Parameter Symbol Continuous reverse voltage Conditions Min VR Continuous forward current IF Non-repetitive peak forward current IFSM Storage temperature Tstg Junction temperature Tj tp = 8.3 ms half sinewave;JEDEC method -65 Max Unit 40 V 200 mA 1 A +150 125 Note 1. Pulse test: tp < 300 s; ä 0.02. E le c tric a l C h a ra c te ris tic s T a = 2 5 P a ra m e te r S ym b o l C o n d itio n s VF F o rw a rd vo lta g e R e ve rs e c u rre n t IR M in M ax U n it IF = 1 0 m A 300 mV IF = 1 0 0 m A 420 mV IF = 2 0 0 m A 550 mV VR = 30 V 15 VR = 30 V; Tj = 100 D io d e c a p a c ita n c e Cd f = 1 M H z; V R = 0 V 40 A 3 mA 50 pF Marking Type BAT21 BAT21A BAT21C BAT21S Marking L7* L8* L9* L0* www.kexin.com.cn 1