smd type diodes 8 www.kexin.com.cn 2.108 2.348 1 2 4.699 4.064 5.588 5.080 3.937 3.302 2.108 1.905 4.12 3.92 2.65 2.45 5.59 5.39 2.10 2.30 1.270 0.762 0.203 0.051 0.305 0.152 recommended land pattern do-214aa(smb) unit: mm surface mount schottky barrier rectifier B240 features the plastic package carries underwriters laboratory flammability classification 94v-0 for surface mounted applications metal silicon junction,majority carrier conduction low power loss,high efficiency built-in strain relief,ideal for automated placement high forward surge current capability absolute maximum ratings and electrical characteristics ta = 25 parameter symbol rating unit maximum repetitive peak reverse voltage v rrm 40 v maximum rms voltage v rms 28 v maximum dc blocking voltage v dc 40 v maximum average forward rectified current at t l i (av) 2a peak forward surge current 8.3ms single half sine-wave superimposed on rated load(jedec method) maximum instantaneous forward voltage at 2.0a v f 0.55 v maximum dcreverse current t a =25 0.5 at rated dc blocking voltage t a =100 10 typical junction capacitance * c j 220 pf typical thermal resistance *2 r ja 75 /w operating junction temperature range t j -65 to 125 storage temperature range t stg -65to150 *1 measured at 1mhz and applied reverse voltage of 4.0v d.c *2 p.c.b mounted with 0.2x0.2'' (5.0x5.0mm) copper pad areas i fsm i r 50 a ma marking marking s 24 s
smd type diodes 9 typlacl characteristics www.kexin.com.cn B240 2.0 1.6 1.2 0.8 0.4 0 0 25 50 75 100 125 150 175 50 40 30 20 10 0 0.1 1.0 10 100 0.01 0.1 1 10 100 100 10 1 0.1 reverse voltage,volts t,pulse duration,sec. fig. 5-typical junction capacitance fig. 6-typical transient thermal impedance number of cycles at 60 hz fig. 2-maximum non-repetitive peak forward surge current fig. 1- forward current derating curve average forward rectified current, amperes junction capacitance, pf peak forward surge current, amperes 1 10 100 8.3ms single half sine-wave (jedec method) 10 100 1000 2000 0 20 40 60 80 100 100 10 1 0.1 0.01 0.001 tj=75 c tj=25 c tj=100 c percent of peak reverse voltage,% fig. 4-typical reverse characteristics instantaneous reverse current, milliamperes transient thermal impedance, c/w ambient temperature, c single phase half wave 60hz resistive or inductive load 50 10.0 1 0.1 0.01 fig. 3-typical instantaneous forward characteristics instantaneous forward current,amperes instantaneous forward voltage, volts t j =25 c 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 t j =25 c
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