PHOTOCOUPLER KB357NT Features 1.Opaque type,mini-flat package. 2.Subminiature type(The volume is smaller than that of our conventional DIP type by as far as 30%). 3.Isolation voltage between input and output Viso:3750Vrms. 4.Employs double transfer mold technology. 5.Recognized by UL and CUL, file NO.E225308. 6.Package: 1000Pcs / Reel. 7.RoHS Compliant. Applications 1.Hybrid substrates that require high density mounting. 2.Programmable controllers. *PACKAGE DIMENSIONS (UNIT:mm) SMD Type UNIT : MM[INCH] TOLERANCE : ±0.5[±0.02] UNLESS OTHERWISE NOTED. SPEC NO: DSAD2841 REV NO: V.7 DATE: APR/06/2005 PAGE: 1 OF 7 APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.W.WANG ERP:1205000034 PHOTOCOUPLER KB357NT *Absolute Maximum Ratings (Ta=25°°C) Parameter Input Output Symbol Rating Unit Forward current IF 50 mA Reverse Voltage VR 6 V Power dissipation P 70 mW Collector-emitter voltage VCEO 35 V Emitter-collector voltage VECO 6 V IC 50 mA Collector current PC 150 mW Total power dissipation Collector power dissipation P tot 170 mW *1 V iso 3750 Vrms Operating temperature T opr -30 to +100 °C Storage temperature T stg -40 to +125 °C *2 T sol 260 °C Isolation voltage Soldering temperature *1 40 to 60％RH, AC for1 minute. *2 For 10 seconds. *Electro-optical Characteristics Parameter Input Symbol Conditions Min. Typ. Max. Unit Forward voltage VF IF=20mA - 1.2 1.4 V Peak forward voltage VFM IFM=0.5A - - 3.0 V IR VR=4V - - 10 uA - - 10-7 A Reverse Current Output Collector dark current ICEO Vce=20V Current transfer ratio CTR IF=5mA Vce=5V 50 - 600 ％ VCE (sat) IF=20mA IC=1mA - - 0.2 V - 4 18 uS 3 18 uS Collector-emitter saturation voltage Transfer characteristics Rise time Response time Fall time IF=0 tr tr Model No. Rank mark CTR(%) KB357NLT L 50 to 100 KB357N1T A 80 to 160 KB357N2T B 130 to 260 KB357N3T C 200 to 400 KB357N4T D 300 to 600 KB357N5T A or B 80 to 260 KB357N6T B or C 130 to 400 KB357N7T C or D 200 to 600 KB357N8T A,B or C 80 to 400 KB357N9T B,C or D 130 to 600 KB357N0T A,B,C or D 80 to 600 KB357NT L,A,B,C,D or No mark 50 to 600 Vce=2V IC=2mA RL=100Ω SPEC NO: DSAD2841 REV NO: V.7 DATE: APR/06/2005 PAGE: 2 OF 7 APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.W.WANG ERP:1205000034 PHOTOCOUPLER KB357NT Fig. 1 Current Transfer Ratio vs. Forward Current Fig. 2 Forward Current vs. Forward voltage Fig. 3 Collector Current vs. Collector-emitter Voltage Fig. 4 Relative Current Transfer Ratio vs. Ambient Temperature Fig. 5 Collector-emitter Saturation Voltage vs. Ambient Temperature Fig. 6 Response Time vs. Load Resistance SPEC NO: DSAD2841 REV NO: V.7 DATE: APR/06/2005 PAGE: 3 OF 7 APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.W.WANG ERP:1205000034 PHOTOCOUPLER KB357NT Fig. 7 Collector-emitter Saturation Voltage vs. Forward Current Fig. 8 Collector Dark Current vs. Ambient Temperature Test Circuit for Response Time SPEC NO: DSAD2841 REV NO: V.7 DATE: APR/06/2005 PAGE: 4 OF 7 APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.W.WANG ERP:1205000034 PHOTOCOUPLER KB357NT * NOTES ON HANDLING 1.Recommended soldering conditions (Dip soldering) (1) Dip soldering Temperature 260 or below (molten solder temperature) Time Less than 10 seconds. Cycle One cycle allowed to be dipped in solder including plastic nold portion. Flux Rosin flux containing small amount of chlorine (The flux with a maximum chlorine content of 0.2 Wt % is recommended.) (2) Cautions Fluxes Avoid removing the residual flux with freon-based and chlorine-based cleaning solvent. 2.Cautions regarding noise Be aware that power is suddenly into the component any surge current may cause damage happen, even if the voltage is within the absolute maximum ratings. SPEC NO: DSAD2841 REV NO: V.7 DATE: APR/06/2005 PAGE: 5 OF 7 APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.W.WANG ERP:1205000034 PHOTOCOUPLER KB357NT NOTES ON HANDLING 1.Recommended soldering conditions (1).Infrared reflow soldering Peak reflow temperature 235 ° C or below(package surface temperature) Time of temperature higher than 210 ° C Number or reflows 30 seconds or less Three Flux Rosin flux containing small amount of chlorine(The flux with a maximum chlorine content of 0.2Wt % is recommended.) Package surface Temperature T( ° C) Recommended Temperature Profile of infrared Reflow (heating) to 10 s 235° C (peak temperature) to 30 s 210° C 100 to 160 ° C 60 to 120s (preheating) CAUTION Within this device there exists GaAs (Gallium Arsenide) material which is a harmful substance if ingested. GaAs dust and fumes are toxic. Do not break, cut or pulverize the product, or use chemicals to dissolve them. RESTRICTIONS ON PRODUCT USE The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices / types available in every country. We are mention about our product quality stablity, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing KINGBRIGHT products, to observe standards of safety, and to a avoid situations in which a malfunction or failure of a KINGBRIGHT product could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that KINGBRIGHT products are used within specified operating ranges as set forth in the most recent products specifications. SPEC NO: DSAD2841 REV NO: V.7 DATE: APR/06/2005 PAGE: 6 OF 7 APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.W.WANG ERP:1205000034 PHOTOCOUPLER KB357NT Outline and Dimension(( Tape)) (Units : mm) Tape Direction Outline and Dimension(( Reel)) Packing:1000pcs/reel SPEC NO: DSAD2841 REV NO: V.7 DATE: APR/06/2005 PAGE: 7 OF 7 APPROVED: J. Lu CHECKED: Tracy Deng DRAWN: Y.W.WANG ERP:1205000034