cosmo electronics corp. document no. 69p00009.3 - 1 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler z description the kt101w series consist of an infrared emitting diode, optically coupled to a phototransistor detector, and is incorporated in a 4 pin lsop wide body package. it features a high current transfer ratio, low coupling capacitance and high isolation voltage. z schematic 1. anode 2. cathode 3. emitter 4. collector z features 1. halogen free 2. pb free and rohs compliant 3. temperature range -55 to 115 4. high isolation voltage 5000vrms 5. opaque type, smd low profile 4 lead package 6. current transfer ratio (ctr : min.50% at i f =0.5ma v ce =5v) 7. 8mm outer creepage distance 8. low coupling capacitance 9. msl class 1 10. agency approvals: ? ul approved (no. e169586): ul1577 ? c-ul approved (no. e169586) ? vde approved (no. 40031267): din en60747-5-5 ? fimko approved: en60065, en60950, en60335, en60601 ? cqc approved: gb8898-2011, gb4943.1-2011 z applications ? industrial controls ? programmable controllers ?.switch mode power supplies ? battery equipment ? office machine 2 1 3 4
cosmo electronics corp. document no. 69p00009.3 - 2 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler z outside dimension unit : mm tolerance : 0.2mm z device marking notes: cosmo 101w : ctr rank yww y: year code / ww: week code cosmo 101w yww
cosmo electronics corp. document no. 69p00009.3 - 3 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler z absolute maximum ratings (ta=25 ) parameter symbol rating unit input forward current i f 50 ma peak forward current i fp 1 a reverse voltage v r 6 v power dissipation p d 100 mw output collector-emitter voltage v ceo 80 v emitter-collector voltage v eco 7 v collector current i c 50 ma collector power dissipation p c 150 mw total power dissipation ptot 250 mw isolation voltage 1 minute viso 5000 vrms operating temperature topr -55 to +115 storage temperature tstg -55 to +125 soldering temperature 10 seconds tsol 260 z electro-optical characteristics (ta=25 ) parameter symbol conditions min. typ. max. unit input forward voltage v f i f =20ma C 1.2 1.8 v reverse current i r v r =4v C C 10 ua terminal capacitance ct v=0, f=1kh z C 30 250 pf output collector dark current i ceo v ce =20v, i f =0 C C 0.1 ua collector-emitter breakdown voltage bv ceo ic=0.1ma, i f =0 80 - - v emitter-collector breakdown voltage bv eco i e =100ua, i f =0 7 - - v transfer charac- teristics current transfer ratio ctr i f =0.5ma, v ce =5v 50 C 600 % collector-emitter saturation volta g e v ce (sat) i f =10ma, ic=1ma C 0.1 0.3 v isolation resistance riso dc500v, 40 to 60%rh 5x10 10 10 11 C floating capacitance cf v=0, f=1mh z C 0.6 1.0 pf response time (rise) tr vcc=2v,ic=2ma,r l =100 C 11 C us response time (fall) tf C 11 C us
cosmo electronics corp. document no. 69p00009.3 - 4 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler classification table of current transfer ratio is shown below. ctr rank. ctr ( % ) kt101wa 63 to 125 kt101wb 100 to 200 fig.1 current transfer ratio vs. forward current current transfer ratio ctr ( % ) 1 / 6 2 3 2 1 1 2 1 1 3 1 1 4 1 1 5 1 1 6 1 1 7 1 1 8 1 1 9 1 1 1 / 2 6 3 1 ta=25 v =5v ce forward current i f (ma) fig.2 collector power dissipation vs. ambient temperature fig.3 collector dark current vs. ambient temperature collector power dissipation p c ( mw ) 50 100 0 -55 0 150 200 25 55 75 100 125 collector dark current i ceo ( a ) 115 10 10 -55 -11 -10 10 10 10 -9 -8 -7 50 25 075100 -6 -5 c e v = 2 0 v 10 10 -25 ambient temperature ta ( ) ambient temperature ta ( ) fig.4 forward current vs. ambient temperature fig.5 forward current vs. forward voltage forward current i f ( ma ) 60 10 -55 0 20 025 30 40 50 50 75 115 125 forward current i f ( ma ) 20 1.0 0.5 0 1 2 5 10 3.0 2.5 2.0 1.5 500 100 50 200 ta=75 50 25 0 -25 ambient temperature ta ( ) forward voltage v f (v)
cosmo electronics corp. document no. 69p00009.3 - 5 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler fig.6 collector current vs. collector-emitter voltage fig.7 relative current transfer ratio vs. ambient temperature collector current i c (ma) 0 01 1 2 234 6 57 0.5ma 9 8 5ma i =10ma 4 3 5 6 ta=25 1ma c 0.1ma f relative current transfer ratio ( % ) -5 5 0 0 50 25 50 115 75 i = 0 .5 m a v =5v 150 100 f ce collector-emitter voltage v ce (v) ambient temperature ta ( ) fig.8 collector-emitter saturation voltage vs. ambient temperature fig.9 collector-emitter saturation voltage vs. forward current collector-emitter saturation voltage v ce ( v ) 0 -55 0 50 25 75 115 ic=1ma 0.02 0.04 0.06 0.10 0.08 0.12 0.16 0.14 i =10ma f collector-emitter saturation voltage v ce ( v ) ambient temperature ta ( ) forward current i f (ma) fig.10 response time (rise) vs. load resistance fig.11 response time (fall) vs. load resistance response rise time ( us ) 10 1 0.1 tr 0.5 0.2 0.1 1 2 5 10 20 100 50 ic= 2m a v =2v ta=25c ce response fall time ( us ) 10 0.1 1 0.1 0.2 1 0.5 5 2 20 10 ta=25 ic= 2 m a v = 2 v 100 50 c tf ce load resistance r l (k ) load resistance r l (k ) 0 4 0 8 1 2 3 5 4 6 7 c ta=25 ic=7ma ic=5ma ic=3ma ic=1ma ic=0.5ma 26 10
cosmo electronics corp. document no. 69p00009.3 - 6 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler z test circuit for response time v c e t r t f 9 0 % 1 0 % 2 1 3 4 r v c c v c e i f i f l
cosmo electronics corp. document no. 69p00009.3 - 7 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler z recommended soldering conditions (a) infrared reflow soldering ? peak reflow soldering ? time of peak reflow temperature ? time of temperature higher than 230 ? time to preheat temperature from 180~190 ? time(s) of reflow ? flux 260 or below (package surface temperature) 10 sec 30-60 sec 60-120 sec two rosin flux containing small amount of chlorine (the flux with a maximum chlorine content of 0.2 wt% is recommended.) recommended temperature prof ile of infrared reflow 180 190 230 260 60-120 sec 30-60 sec t (s) temperature 10 sec max. (b) wave soldering ? temperature ? time ? preheating conditions ? time(s) of reflow ? flux 260 or below (molten solder temperature) 10 seconds or less 120 or below (package surface temperature) one rosin flux containing small amount of chlorine (the flux with a maximum chlorine content of 0.2 wt% is recommended.) (c) cautions ? fluxes avoid removing the residual flux with freon-based and chlorine-based cleaning solvent. ? avoid shorting between portion of frame and leads.
cosmo electronics corp. document no. 69p00009.3 - 8 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler z numbering system kt101w y (z) notes: kt101w = part no. y = ctr rank option (a ~ b) z = tape and reel option (tld tru) option description packing quantity tld tld tape & reel option 3000 units per reel tru tru tape & reel option 3000 units per reel z recommended pad layout for surface mount lead form unit mm
cosmo electronics corp. document no. 69p00009.3 - 9 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler z 4-pin lsop carrier tape & reel tolerance 0.2mm
cosmo electronics corp. document no. 69p00009.3 - 10 - http://www.cosmo-ic.com cosmo kt101w series 4pin lsop low input current photocoupler z application notice the content of datasheet is the guidance for product use only. cosmo takes no responsibility to the accuracy of the information provi ded here. for continuously improving all of products, including quality, reliability, function...etc., cosmo reserves the right to change the specification, characteri stics, data, materials, and structure of products without notic e. please contact with cosmo to obtain the latest specification. it would be required to comply with the absolute maximu m ratings listed in the specification. cosmo has no liability and responsibility to the damage caused by improper use of the products. cosmo products are intended to be designed for use in general electronics application list below: a. personal computer b. oa machine c. audio / video d. instrumentation e. electrical application f. measurement equipment g. consumer electronics h. telecommunication cosmo devices shall not be used or related with equi pment requiring higher level of quality / reliability, or malfunction, or failure which may cause loss of hum an life, bodily injury, includes, without limitation: a. medical and other life supporting equipments b. space application c. telecommunication equipment (trunk lines) d. nuclear power control e. equipment used for automotive vehicles, trains, ships...etc. this publication is the property of cosmo. no part of th is publication may be reproduced or copied in any form or any means electronically or mechanica lly for any purpose, in whole or in part without any written permission expressed from cosmo.
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