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4 pin sop phototransistor photocoupler everlight electronics co., ltd. 1 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 el357-g series features: ? halogens free ? current transfer ratio (ctr: 50~600% at i f =5ma, v ce =5v) ? high isolation voltage between input and output (viso=3750 v rms ) ? compact small outline package ? pb free and rohs compliant. ? ul approved (no. e214129) ? vde approved (no. 132249) ? semko approved (no. 7161608) schematic ? nemko approved (no. p06206474) ? demko approved (no. 313924) ? fimko approved (no. fi 22807) ? csa approved (no. 1969127) description pin configuration 1. anode 2. cathode 3. emitter 4. collector the el357 series contains an infrared emitting diode, optically coupled to a phototransistor encapsulated with green compound. the devices in a 4-pin small outline smd package. applications ? programmable controllers ? system appliances, measuring instruments ? telecommunication equipments ? home appliances, such as fan heaters, etc. ? signal transmission between circuits of different potentials and impedances
4 pin sop phototransistor photocoupler everlight electronics co., ltd. 2 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 el357-g series absolute maximum ratings (t a =25c) parameter symbol rating unit forward current i f 50 ma peak forward current (1us, pulse) i fp 1 a reverse voltage v r 6 v input power dissipation no derating required up to t a = 100c p d 70 mw 150 mw power dissipation derating factor (above t a = 8 0c) p c 3.7 mw/ c collector current i c 80 ma collector-emitter voltage v ceo 80 v output emitter-collector voltage v eco 7 v total power dissipation p tot 200 mw isolation voltage *1 v iso 3750 v rms operating temperature t opr -55 ~ +110 c storage temperature t stg -55 ~ +125 c soldering temperature *2 t sol 260 c notes *1 ac for 1 minute, r.h.= 40 ~ 60% r.h. in this te st, pins 1 & 2 are shorted together, and pins 3 & 4 are shorted together. *2 for 10 seconds.
4 pin sop phototransistor photocoupler everlight electronics co., ltd. 3 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 el357-g series electrical characteristics (t a =25c unless specified otherwise) input parameter symbol min. typ.* max. unit condition forward voltage v f - 1.2 1.4 v i f = 20ma reverse current i r - - 10 a v r = 4v input capacitance c in - 30 250 pf v = 0, f = 1khz output parameter symbol min. typ.* max. unit condition collector-emitter dark current i ceo - - 100 na v ce = 20v, i f = 0ma collector-emitter breakdown voltage bv ceo 80 - - v i c = 0.1ma emitter-collector breakdown voltage bv eco 7 - - v i e = 0.1ma transfer characteristics (t a =25c unless specified otherwise) parameter symbol min. typ.* max. unit condition el357 50 - 600 el357a 80 - 160 el357b 130 - 260 el357c 200 - 400 current transfer ratio el357d ctr 300 - 600 % i f = 5ma ,v ce = 5v collector-emitter saturation voltage v ce(sat) - 0.1 0.2 v i f = 1ma ,i c = 20ma isolation resistance r io 510 10 - - v io = 500vdc, 40~60% r.h. floating capacitance c io - 0.6 1.0 pf v io = 0, f = 1mhz cut-off frequency fc - 80 - khz v ce = 5v, i c = 2ma r l = 100 , -3db rise time t r - 6 18 s fall time t f - 8 18 s v ce = 2v, i c = 2ma, r l = 100 * typical values at t a = 25c
pin sop 4 photocoupler everlight electronics co., ltd. 4 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 phototransistor el357-g series typical performance curves
pin sop 4 photocoupler everlight electronics co., ltd. 5 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 phototransistor el357-g series v cc figure 10. switching time test circuit & waveforms i f i c r l r in output input pulse 10% input output pulse 90% t t r f t on t of f
4 pin sop phototransistor photocoupler everlight electronics co., ltd. 6 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 el357-g series order information part number el357(x)(y)-vg note x = ctr rank (a, b, c, d or none) y = tape and reel option (ta, tb or none). v = vde option g = halogen free option description packing quantity none standard smd option 100 units per tube -v standard smd option + vde 100 units per tube (ta) ta tape & reel option 3000 units per reel (tb) tb tape & reel option 3000 units per reel (ta)-v ta tape & reel option + vde 3000 units per reel (tb)-v tb tape & reel option + vde 3000 units per reel
4 pin sop phototransistor everlight electronics co., ltd. 7 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 el357-g series photocoupler package drawing (dimensions in mm) recommended pad layout for surface mount leadform
4 pin sop photocoupler everlight electronics co., ltd. 8 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 phototransistor el357-g series device marking el g 357 rywwv notes el denotes everlight 357 denotes part number r denotes ctr rank (a, b, c, d or none) y denotes 1 digit year code ww denotes 2 digit week code v denotes vde (optional) g denotes halogens free
4 pin sop phototransistor photocoupler everlight electronics co., ltd. 9 http:\\www.everlight.com document no pds-elst-357g rev. 0 april 25, 2008 el357-g series tape & reel packing specifications option ta option tb direction of feed from reel direction of feed from reel tape dimensions dimension no. a b do d1 e f dimension (mm) 4.4 0.1 7.4 0.1 1.5 + 0.1/-0 1.5 0.1 1. 7 5 0.1 7.5 0.1 dimension no. po p1 p2 t w k dimension (mm) 4.0 0.15 8.0 0.1 2. 0 0.1 0.25 0.03 16.0 0.2 2.4 0.1
4 pin sop phototransistor photocoupler everlight electronics co., ltd. 10 http:\\www.everlight.co m document no pds-elst-357g rev. 0 april 25, 2008 el357-g series solder reflow temperature profile 260 c (p eak ) 1 50 c 1- 3 c/s ec max 7 0 ? 17 0 s ec 2 00 c 217 c >2 55 c (30 s min ) 1- 3 c/sec m a x 60 ? 140 sec time (s)
4 pin sop phototransistor photocoupler everlight electronics co., ltd. 11 http:\\www.everlight.co m document no pds-elst-357g rev. 0 april 25, 2008 el357-g series disclaimer 1. the specifications in this datasheet may be changed without notice. everlight reserves the authority on material change for above specification. 2. when using this product, please observe the absolute maximum ratings and the instructions for use as outlined in this datasheet. everlight assumes no res ponsibility for any damage resulting from use of the product which does not comply with the absolute ma ximum ratings and the instructions included in this datasheet. 3. these specification sheets include materials prot ected under copyright of ever light. reproduction in any form is prohibited without t he specific consent of everlight.

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