Diodes SMD Type LOW VOLTAGE HIGH SPEED SWITCHING 1SS321 SOT-23 Unit: mm +0.1 2.9-0.1 +0.1 0.4-0.1 VF = 0.42 V(Typ) Low reverse current: IR =500 nA(Max) 1 0.55 Low forward voltage: +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 Small packag : SC-59(SOT-23MOD) 1.Base 2.Emitter 3.collector Absolute M axim um R atings Ta = 25 Param eter M axim um (Peak) reverse voltage Sym bol R ating U nit VRM 12 V R everse voltage VR M axim um (Peak) forward current I FM 150 (N ote 1) mA Average forward current IO 50 (N ote 1) mA Surge current (t = 10 m s) I FSM 1000 (N ote 1) mA P 150 mW Power dissipation Junction tem perature Storage tem perature range 10 Tj 125 T stg -55 to +125 V N ote U nit R ating.Total rating = U nit R ating 1.5 Electrical Characteristics Ta = 25 Parameter Symbol Forward voltage VF Conditions Min Typ IF = 1 mA 0.32 IF = 10 mA 0.42 IF = 50 mA 0.63 Reverse current IR V R =10 V Total capacitance CT V R =0 V,f=1 MHz Max V 1.0 500 0.32 Unit 4.5 A pF Note Difference between 2 Devices in 1 package Marking Marking F9 www.kexin.com.cn 1