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  ral1a ... ral1m ral1a ... ral1m fast switching surface mount controlled avalanche rectifiers schnelle smd-gleichrichter mit kontrolliertem durchbruchsverhalten version 2010-01-14 dimensions - ma?e [mm] nominal current C nennstrom 1 a repetitive peak reverse voltage periodische spitzensperrspannung 50...1000 v plastic case minimelf kunststoffgeh?use minimelf do-213aa weight approx. C gewicht ca. 0.04 g plastic material has ul classification 94v-0 geh?usematerial ul94v-0 klassifiziert standard packaging taped and reeled standard lieferform gegurtet auf rolle marking: 1. red ring denotes cathode and fast switching rectifier family 2. colored ring denotes repetitive peak reverse voltage (see below) kennzeichnung: 1. roter ring kennzeichnet kathode und schnelle gleichrichter 2. farbiger ring kennzeichnet periodische spitzensperrspannung (siehe unten) maximum ratings grenzwerte type typ repetitive peak reverse voltage periodische spitzensperrspannung v rrm [v] reverse avalanche breakdown voltage sperrspannung im durchbruch v rsm [v] 1 ) 2. cathode ring 2. kathodenring ral1a 50 > 75 grey / grau ral1b 100 > 150 red / rot ral1d 200 > 250 orange / orange ral1g 400 > 450 yellow / gelb RAL1J 600 > 650 green / grn ral1k 800 > 850 blue / blau ral1m 1000 > 1100 violet / violett max. average forward rectified current, r-load dauergrenzstrom in einwegschaltung mit r-last t a = 75c i fav 1 a 2 ) peak forward surge current, 50/60 hz half sine-wave sto?strom fr eine 50/60 hz sinus-halbwelle t a = 25c i fsm 22/25 a rating for fusing, t < 10 ms grenzlastintegral, t < 10 ms t a = 25c i 2 t 2.5 a 2 s non-repetitive peak reverse avalanche energy einmalige impulsenergie in sperr-richtung i rsm = 1 ma t a = 25c e rsm 20 mj junction temperature C sperrschichttemperatur storage temperature C lagerungstemperatur t j t s -50...+175c -50...+175c 1 i rsm = 1 ma, t a = 25c 2 mounted on p.c. board with 25 mm 2 copper pads at each terminal montage auf leiterplatte mit 25 mm 2 kupferbelag (l?tpad) an jedem anschluss ? diotec semiconductor ag http://www.diotec.com/ 1 0 . 4 0 . 4 1 . 6 3 . 5
ral1a ... ral1m characteristics kennwerte forward voltage durchlass-spannung t j = 25c i f = 1 a v f < 1.3 v leakage current sperrstrom t j = 25c t j = 125c v r = v rrm v r = v rrm i r i r < 3 a < 50 a reverse recovery time sperrverzugszeit i f = 0.5 a through/ber i r = 1 a to i r = 0.25 a ral1a...g RAL1J ral1k...m t rr t rr t rr < 150 ns < 250 ns < 500 ns thermal resistance junction to ambient air w?rme widerstand sperrschicht C umgebende luft r tha < 75 k/w 1 ) thermal resistance junction to terminal w?rmewiderstand sperrschicht ? anschluss r tht < 40 k/w 1 mounted on p.c. board with 25 mm 2 copper pads at each terminal montage auf leiterplatte mit 25 mm 2 kupferbelag (l?tpad) an jedem anschluss 2 http://www.diotec.com/ ? diotec semiconductor ag 120 100 80 60 40 20 0 [%] i fav rated forward current versus ambient temperature ) zul. richtstrom in abh. von der umgebungstemp. ) 1 1 [c] t a 150 100 50 0 10 1 10 10 10 -1 -2 -3 [a] i f forward characteristics (typical values) durchlasskennlinien (typische werte) 0.4 v f 0.8 1.0 1.2 1.4 [v] 1.8 t = 25c j t = 125c j 10a-(0.5a-1.2v)


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