- 422 - LL4933G thru ll4937g 1.0 amp surface mount glass passivated silicon rectifiers voltage range 50 to 600 volts current 1.0 ampere features plastic package has carries underwriters laboratory flammability classification 94v-0. surge overload rating to 30 amperes peak ideal for printed circuit board reliable low cost construction utilizin g molded plastic technique results in inexpensive product high temperature soldering guaranteed: 260 o c / 10 seconds at terminals. mechanical data solderability per mil-std-750, method 208 at terminals. mounting position: any weight: 0.12 gram melf dimensions in inches and (millimeters) maximum ratings and electrical characteristics rating at 25 ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20% type number symbol ll 4933g ll 4934g ll 4935g ll 4936g ll 4937g units m aximum recurrent p eak r everse v oltage v rrm 50 100 200 400 600 v maximum rms voltage v rms 35 70 140 280 420 v maximum dc blocking voltage v dc 50 100 200 400 600 v maximum average forward rectified current @t a = 75 i (av) 1.0 a peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method ) i fsm 30 a maximum instantaneous forward voltage @1.0a v f 1.2 v maximum dc reverse current @ t a =25 at rated dc blocking voltage @ t a =100 i r 5 100 ua ua maximum reverse recovery time(note 3) trr 150 ns typical junction capacitance ( note 1 ) cj 15 pf typical thermal resistance (note 2) r jc 60 /w operating and storage temperature range t j ,t stg - 65 to + 150 notes: 1. measured at 1 mhz and applied reverse voltage of 4.0 volts d.c. 2. thermal resistance from junction to ambient. mount on 0.2? x 0.2? cu-pad on p.c.b. 3. reverse recovery test conditions: if=0.5a, ir=1.0a, irr=0.25a
- 423 - fig.1- reverse recovery time characteristic and test circuit diagram 50 noninductive non inductive oscilloscope (note 1) pulse generator (note 2) dut (+) 50vdc (approx) (-) notes: 1. rise time=7ns max. input impedance= 1 megohm 22pf 2. rise time=10ns max. sourse impedance= 50 ohms (-) (+) 10 noninductive -1.0a -0.25a 0 +0.5a trr 1cm set time base for 5/ 10ns/ cm ratings and characteristic curves (LL4933G thru ll4937g) fig.5- typical forward characteristics instantaneous for ward current . (a) 1.6 1.8 2.0 0.6 0.8 1.0 1.2 1.4 .03 0.1 0.3 1.0 10 20 3.0 .01 forward voltage. (v) tj=25 c pulse width=300 s 1% duty cycle o fig.4- typical junction capacitance junction cap acitance.(pf) 1 10 100 20 10 1 reverse voltage. (v) tj=25 c 0 f=1 mhz vsig=50mvp-p fig.6- typical reverse characteristics instantaneous reverse current . (ma) 0 20 40 60 80 100 120 140 .10 1.0 10 100 percent of rated peak reverse voltage. (%) ta=25 c 0 ta=100 c 0 fig.2- maximum forward current derating curve average for ward rectified current amperes 25 0 50 75 100 125 150 175 .4 0 .2 .6 .8 1.0 ambient temperature. ( c) o fig.3- maximum non-repetitive forward surge current peak for ward surge current amperes 1 2 4 10 20 60 80 6 8 40 100 20 10 0 30 number of cycles at 60hz 8.3ms single half sine wave jedec method p.c.b. monted on 0.2x0.2" (5.0x5.0mm)copper areas pads ta=75 c 0 1.0 cycle
|
