? semiconductor components industries, llc, 2005 january, 2005 ? rev. 5 1 publication order number: mr2535l/d mr2535l overvoltage transient suppressors medium current designed for applications requiring a low voltage rectifier with reverse avalanche characteristics for use as reverse power transient suppressors. developed to suppress transients in the automotive system, these devices operate in the forward mode as standard rectifiers or reverse mode as power avalanche rectifier and will protect electronic equipment from overvoltage conditions. ? avalanche voltage 24 to 32 volts ? high power capability ? economical ? increased capacity by parallel operation mechanical characteristics ? case: epoxy, molded ? weight: 2.5 grams (approximately) ? finish: all external surfaces corrosion resistant and terminal leads are readily solderable ? maximum lead temperature for soldering purposes: 350 c 3/8 from case for 10 seconds at 5 lbs. tension ? polarity: indicated by diode symbol or cathode band ? marking: mr2535l maximum ratings (t j = 25 c unless otherwise noted) rating symbol value unit dc peak repetitive reverse voltage working peak reverse voltage dc blocking voltage v rrm v rwm v r 20 volts repetitive peak reverse surge current (time constant = 10 ms, duty cycle 1%, t c = 25 c) i rsm 62 amps average rectified forward current (single phase, resistive load, 60 hz, t c = 125 c) (figure 4) i o 6.0 amps non?repetitive peak surge current surge supplied at rated load conditions halfwave, single phase i fsm 600 amps operating and storage junction temperature range t j , t stg ?65 to +175 c maximum ratings are those values beyond which device damage can occur. maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. if these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. device package shipping ordering information axial lead button case 194 style 1 mr2535l axial lead button 1000/box MR2535LRL axial lead button 800/reel marking diagram mr2535l ayyww mr2535l = device code a = location code yy = year ww = work week http://onsemi.com
mr2535l http://onsemi.com 2 thermal characteristics characteristic lead length symbol max unit thermal resistance, junction?to?lead @ both leads to heatsink, equal length 1/4 3/8 1/2 r q jl 7.5 10 13 c/w thermal resistance junction?to?case r q jc 0.8 (note 1) c/w electrical characteristics (t j = 25 c unless otherwise noted) characteristic symbol min max unit instantaneous forward voltage (note 2) (i f = 100 amps, t c = 25 c) v f ? 1.1 volts reverse current (v r = 20 vdc, t c = 25 c) i r ? 200 nadc breakdown voltage (note 2) (i r = 100 madc, t c = 25 c) v (br) 24 32 volts breakdown voltage (note 2) (i r = 90 amp, t c = 150 c, pw = 80 m s) v (br) ? 40 volts breakdown voltage temperature coefficient v (br)tc ? 0.096 (note 1) %/ c forward voltage temperature coefficient @ i f = 10 ma v ftc ? 2 (note 1) mv/ c 1. typical. 2. pulse test: pulse width 300 m s, duty cycle 2%.
mr2535l http://onsemi.com 3 75 c figure 1. typical forward voltage figure 2. typical reverse current versus junction temperature v f , instantaneous forward voltage (mv) t j , junction temperature ( c) i 1000 900 800 700 600 1 10 100 1000 i 150 125 100 75 50 25 0.01 0.1 1 10 100 1000 figure 3. typical capacitance figure 4. maximum current ratings v r , dc blocking voltage (v) t l , lead temperature ( c) c, capacitance (pf) 25 20 15 10 5 0 1000 1500 2000 2500 3000 3500 4000 i 180 140 120 100 80 60 40 20 0 5 10 15 20 25 figure 5. thermal response figure 6. steady state thermal resistance t, time (s) lead length (mm) r(t), transient thermal 100 10 1 0.01 0.001 0.01 0.1 1 r 25 20 15 10 5 0 0 5 10 15 20 25 30 45 f , instantaneous forward current (a) , reverse current (na) r , average forward current (a) f(avg) 160 0.1 resistance (normalized) 35 40 , thermal resistance junction to lead ( c/w) jl t j = 125 c 25 c v r = 20 v t j = 25 c l = 6.25 mm 10 mm 15 mm both leads to heatsink with equal length i f(peak) /i f(avg) = l = 6.25 mm, both leads to heatsink (equal length) maximum maximum typical typical both leads to heatsink (equal length) single to heatsink
mr2535l http://onsemi.com 4 figure 7. maximum peak reverse current figure 8. maximum peak reverse power t, time constant (ms) t, time constant (ms) i 1000 100 10 1 10 100 p 1000 100 10 1 100 1000 10000 figure 9. maximum reverse energy figure 10. reverse power derating t, time constant (ms) t l , lead temperature ( c) w 1000 100 10 1 1 10 100 1000 150 100 75 50 25 0 400 800 1200 1600 2400 figure 11. typical clamping factor i rsm , repetitive peak reverse surge current (a) v 120 70 60 30 10 1.00 1.10 1.20 rsm , peak reverse current (a) , peak reverse power (w) rsm peak reverse power (w) 125 50 , peak reverse energy (j) rsm 2000 20 40 90 110 80 100 1.02 1.04 1.06 1.08 1.18 1.12 1.14 1.16 t j = 25 c t j = 25 c t j = 25 c time constant = 100 ms time constant = 10 ms /v z(irsm) z(100 ma) pw = 80 s, t l = 25 c
mr2535l http://onsemi.com 5 figure 12. load dump test circuit figure 13. load dump pulse current t, time (s) 0.5 0.3 0.2 0.1 0 0 20 40 60 80 100 (%) 0.4 dl/dt < 1 a/ s 2 ohms dl/dt limitation 100 h mr2535l 50 mf 0 ? 150 v t (50%) t (10%) t (37%) t (37%) = time constant t (50%) = 0.7 t (37%) t (10%) = 2.3 t (37%)
mr2535l http://onsemi.com 6 package dimensions axial lead button case 194?04 issue h notes: 1. cathode symbol on package. 2. 194?01 obsolete, 194?04 new standard. style 1: pin 1. cathode 2. anode a k b k 2 1 d dim min max min max inches millimeters a 8.43 8.69 0.332 0.342 b 5.94 6.25 0.234 0.246 d 1.27 1.35 0.050 0.053 k 25.15 25.65 0.990 1.010 on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. atypicalo parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information n. american technical support : 800?282?9855 toll free usa/canada japan : on semiconductor, japan customer focus center 2?9?1 kamimeguro, meguro?ku, tokyo, japan 153?0051 phone : 81?3?5773?3850 mr2535l/d literature fulfillment : literature distribution center for on semiconductor p.o. box 61312, phoenix, arizona 85082?1312 usa phone : 480?829?7710 or 800?344?3860 toll free usa/canada fax : 480?829?7709 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : http://onsemi.com order literature : http://www.onsemi.com/litorder for additional information, please contact your local sales representative.
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