smr1a - smr1m glass passivated junction fast recovery rectifier prv : 50 - 1000 volts io : 1.0 am pere features : * glass passivated junction chip * high current capability * high reliability * low reverse current * low forward voltage drop * pb free / rohs compliant mechanical data : * case: jedec sod-123fl, molded plastic over passivated chip * terminals: solder plated, solderable per mil-std-750, method 2026 * polarity: color band denotes cathode end * mounting position : any * weight: 0.02 gram (approximate) maximum ratings and electrical characteristics rating at 25 c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20%. symbol smr1a smr1b smr1d SMR1G smr1j smr1k smr1m unit ra rb rd rg rj rk rm maximum recurrent peak reverse voltage v rrm 50 100 200 400 600 800 1000 v maximum rms voltage v rms 35 70 140 280 420 560 700 v maximum dc blocking voltage v dc 50 100 200 400 600 800 1000 v maximum average forward current ta = 55 c i f(av) 1.0 a peak forward surge current, 8.3ms single half sine wave superimposed on rated load (jedec method) maximum peak forward voltage at i f = 1.0 a v f 1.3 v maximum dc reverse current ta = 25 c i r 5 a at rated dc blocking voltage ta = 100 c i r(h) 50 a maximum reverse recovery time (note 1) trr 150 250 500 ns typical junction capacitance (note 2) c j 50 pf junction temperature range t j - 65 to + 150 c storage temperature range t stg - 65 to + 150 c notes : ( 1 ) reverse recovery test conditions : i f = 0.5 a, i r = 1.0 a, irr = 0.25 a. ( 2 ) measured at 1.0 mhz and applied reverse voltage of 4.0 v dc page 1 of 2 rev. 01 : january 12, 2009 rating i fsm 35 a marking dimensions in millimeters sod-123fl 1.55(0.061) 1.95(0.077) 0.6(0.024) 1.0(0.039) 2.5(0.098) 2.9(0.114) 0.8(0.031) 1.2(0.047) 0.05(0.002) 0.25(0.010) 3.5(0.138) 3.9(0.154) 0.5(0.020) 1.1(0.043) max0.1(0.004) iatf 0060636 sgs th07/1033 tw00/17276em th97/10561qm
fig.1 - reverse recovery time characteristic and test circuit diagram + notes : 1. rise time = 7 ns max., input impedance = 1 megaohm, 22 pf. 2. rise time = 10 ns max., source impedance = 50 ohms. 3. all resistors = non-inductive types. fig.2 - derating curve current fig.3 - maximum non-repetitive peak forward surge current 0 25 50 75 100 125 150 175 1 2 4 6 10 20 40 60 100 ambient temperature, ( c) number of cycles at 60hz fig.4 - typical forward characteristics fig.5 - typical reverse characteristics 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 forward voltage, (v) page 2 of 2 rev. 01 : january 12, 2009 rating and characteristic curves ( smr1a - smr1m ) 60hz resistive or inductive 0.8 0.6 0.4 0.2 1.0 100 10 1.0 28 0 35 0 21 14 7 0.1 10 80 0.0 1 0.01 1.0 0.1 100 140 0 20 40 60 120 percent of rated reverse voltage, (%) peak forward surge current, (a) average forward current, (a) forward current, (a) reverse current, (a) t j = 25 c t j = 100 c t j = 25 c pulse width = 300 s 2% duty cycle 8.3 ms single half sine wave ta = 50 c set time base for 50-100 ns/cm trr + 0.5 0 - 0.25 - 1.0 a 1 cm oscilloscope ( note 1 ) 1 50 10 d.u.t. 50 vdc (approx.) pulse generator ( note 2 ) iatf 0060636 sgs th07/1033 tw00/17276em th97/10561qm
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