? semiconductor components industries, llc, 2002 september, 2002 ? rev. 0 388 publication order number: MR2835Sk/d MR2835S, MR2835Sk overvoltage transient suppressor ...designed for applications requiring a diode with reverse avalanche characteristics for use as reverse power transient suppressor. developed to suppress transients in the automotive system, this device operates in reverse mode as power zener diode and will protect expensive modules such as ignition, injection and autoblocking systems from overvoltage conditions. ? high power capability ? economical mechanical characteristics ? finish: all external surfaces are corrosion resistant ? polarity: cathode to terminal ? weight: 1.78 grams (approximately) ? maximum temperature for soldering purposes: 260 c for 10 s using a belt furnace ? marking: MR2835S maximum ratings rating symbol value unit dc blocking voltage v r 23 volts peak repetitive reverse surge current (time constant = 10 ms, t c = 25 c) i rsm 62 amps non?repetitive peak surge current (halfwave, single phase, 50 hz) i fsm 400 amps storage temperature range t stg ?40 to +150 c operating junction temperature range t j ?40 to +150 c device package shipping ordering information MR2835S top can case 460 top can 500/tape & reel ## = lot number MR2835S = specific device code yy = year ww = work week marking diagram ## MR2835S yyww cathode http://onsemi.com MR2835Sk top can 500/tape & reel
MR2835S, MR2835Sk http://onsemi.com 389 thermal characteristics characteristic symbol value unit thermal resistance, junction to case r q jc 1.0 c/w electrical characteristics (t c = 25 c unless otherwise noted) characteristic symbol min max unit instantaneous forward voltage (i f = 100 a) (note 1) v f ? 1.1 volts reverse current (v r = 20 v) (note 1) i r ? 5.0 m a breakdown voltage (i z = 100 ma) (note 1) v (br) 24 32 volts breakdown voltage (i z = 80 a, t c = 85 c, pw = 80 s) v (br) ? 40 volts breakdown voltage temperature coefficient v (br)tc ? 0.09 %/ c forward voltage temperature coefficient (i f = 10 ma) v ftc ? ?2.0* mv/ c 1. pulse test: pulse width < 300 m s, duty cycle < 2%. *typical figure 1. load dump test circuit di/dt limitation 100 h MR2835S/ MR2835Sk 2.0 ohms 50 mf 0 - 150 v mechanical stress tension compression torsion shear mounting and handling compression : tension: torsion: shear: the mechanical stress limits for the top can diode are as follows: 33.7 lbs 33.7 lbs 6.3 inch lbs 56.2 lbs 150 newtons 150 newtons 0.7 newton meters 250 newtons
MR2835S, MR2835Sk http://onsemi.com 390 figure 2. load dump pulse current figure 3. maximum peak reverse current figure 4. maximum reverse energie figure 5. typical reverse current figure 6. typical forward voltage figure 7. maximum peak reverse power 0.4 0 time (second) 100 60 80 40 time constant (ms) 100 1000 1.0 10 100 1000 1.0 time constant (ms) 1000 100 10 1.0 v r , reverse voltage (v) 0 100 10 1.0 0.1 0.01 0.001 600 800 500 v f , instantaneous forward voltage (mv) 1000 100 10 1.0 time constant (ms) 10 10,000 100 700 % i w i r , reverse current ( a) 20 0 0.1 0.2 0.3 0.5 10 100 1000 10 10 20 30 , instantaneous forward current (a) i f 900 1100 1000 1.0 100 p t (37%) = time constant t (50%) = 0.7 t (37%) t (10%) = 2.3 t (37%) , peak reverse current (a) rsm , peak reverse energie (j) rsm t c = 25 c 1000 1000 , peak reverse power (w) rsm t c = 25 c t j = 25 c t j = 100 c t j = 150 c t j = 25 c t j = 100 c t j = 150 c t c = 25 c di/dt < 1.0 amp/ s t (50%) t (37%) t (10%)
MR2835S, MR2835Sk http://onsemi.com 391 figure 8. reverse power derating figure 9. typical reverse capacitance v r (v) 10 100 0.1 1.0 c 1.0 10 case temperature ( c) 50 125 2800 1000 800 400 200 25 75 100 600 peak reverse power (w) 1200 1400 1600 1800 2000 2200 2400 2600 150 (nf) t t j = 25 c time constant = 10 ms time constant = 100 ms ????????? ????????? ????????? ????????? ????????? ????????? ????????? ????????? dim mm t 24 a 330 n 100 w1 24.4 w2 28.5 w3 25 cardboard carrier bar code tape cover tape 4 16 t label bar code label (stuck on the opposite side of the carrier holes) a w1 lokreel n w3 w2 dimensions: millimeter figure 10. reel packing of MR2835S, MR2835Sk ? top can reel of 500 units ## MR2835S yyww ## MR2835S yyww ## MR2835S yyww
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