Product Brief. UV CA3535 series (CUD8GF1A) CUD8GF1A. Deep UV LED - 285nm. RoHS. Description. Features and Benefits. Key Applications CA CUD8GF1A

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Clifford Peters
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Deep UV LED - 285nm UV CA3535 series (CUD8GF1A) CUD8GF1A RHS Prduct Brief Descriptin CUD8GF1A is a deep ultravilet light emitting dide with peak emissin wavelengths frm 280nm t 290nm.

1 Deep UV LED - 285nm UV CA3535 series (CUD8GF1A) CUD8GF1A RHS Prduct Brief Descriptin CUD8GF1A is a deep ultravilet light emitting dide with peak emissin wavelengths frm 280nm t 290nm. The LED is encased in a ceramic package with a UV-transparent ptical windw. It incrprates state f the art SMD design and lw thermal resistance. CUD8GF1A is designed fr air and water sterilizatin, medical instrumentatin, chemical and bilgical analysis, and hrticulture. Features and Benefits Deep ultravilet LED Lw thermal resistance SMT slderable Lead-free prduct RHS cmpliant Key Applicatins Disinfectin Flurescent spectrscpy Chemical and bilgical analysis Hrticulture 1

2 Table f Cntents Index Prduct Brief Table f Cntents Perfrmance Characteristics Characteristics Graph Binning Structure Mechanical Dimensins Recmmended Slder Pad Reflw Sldering Characteristics Emitter Tape & Reel Packaging Prduct Nmenclature (Labeling Infrmatin) Precautin fr Use Cmpany Infrmatin 2

3 Perfrmance Characteristics Table 1. Electr - Optical characteristic at 20mA (T a =25, RH=30%) Parameter Symbl Value Unit Peak Wavelength [1] λ p 285 nm Optical Output Pwer [2] Φ e [3] 2 mw Frward Vltage [4] V F 6.0 V Spectrum Half Width Δ λ 11 nm View Angle 2Θ 1/2 120 deg. Thermal Resistance (J t S) [5] Rθ J-S 21.5 C/W Table 2. Abslute Maximum Rating Parameter Symbl Value Min. Typ. Max. Unit Frward Current I F ma Pwer Dissipatin P D mw Operating Temperature [7] T pr ºC Strage Temperature [7] T stg ºC Ntes : 1. Peak wavelength measurement tlerance: ± 3 nm 2. Optical Output Pwer measurement tlerance: ± 10% 3. Φ e is the Optical Output Pwer as measured with an integrated sphere 4. Frward vltage measurement tlerance: ± 3% 5. Rθ J-S is the thermal resistance between chip junctin and slder pint 6. Expsure t the abslute maximum rated cnditins may affect device reliability 7. At extreme temperatures - extra care must be taken t keep devices free frm misture 3

4 Characteristics Graph Fig 1. Spectrum, Ta=25, I F =20mA Relative Spectral Pwer (%) Wavelength (nm) Fig 2. Frward Current vs. Frward Vltage, T a = Current (ma) Vltage (V) 4

5 Characteristics Graph Fig 3. Relative Optical Output Pwer vs. Frward Current, T a = Relative Optical Output Pwer (%) Current (ma) Fig 4. Peak Wavelength vs. Frward Current, T a = Wavelength (nm) Current (ma) 5

6 Characteristics Graph Fig 5. Relative Optical Output Pwer vs. Slder Pint Temperature, I F =20mA Relative Optical Output Pwer (%) Tsp( C) Fig 6. Ambient Temperature vs. Peak Wavelength, I F =20mA Wavelength(nm) Tsp( C) 6

7 Characteristics Graph Fig 7. Frward Vltage vs Slder Pint Temperature, I F =20mA Frward Vltage Tsp( C) Fig 8. Typical Spatial Distributin, I F =20mA Angle [deg.] Relative Intensity

8 Binning Structure Table 3. Binning Structure, I F =20mA Main Ranks Y 1 Y 2 Y 3 Y 4 Y 5 Y 6 Wp [nm] Optical Output Pwer [mw] Vf [V] BIN MIN MAX BIN MIN MAX BIN MIN MAX c A a c A b A c A d A e f g h i j Table 4. Ranks : Binning Cde Descriptin Unit Y 1 Y 2 Peak Wavelength nm Y 3 Y 4 Y 5 Optical Output Pwer mw Y 6 Frward Vltage V Ntes : 1. Peak Wavelength Measurement tlerance : ±3nm 2. Optical Output Pwer Measurement tlerance : ± 10% 3. Frward Vltage Measurement tlerance : ±3% 8

9 Mechanical Dimensins Ntes : [1] All dimensins are in millimeters [2] Nt t scale [3] Undefined tlerances are ±0.2mm 9

10 Recmmended Slder Pad Ntes : [1] All dimensins are in millimeters [2] Nt t scale [3] This drawing withut tlerances is fr reference nly 10

11 Reflw Sldering Characteristics Prfile Feature Sn-Pb Eutectic Assembly Pb-Free Assembly Average ramp-up rate (Ts_max t Tp) 3 C/secnd max. 3 C/secnd max. Preheat - Temperature Min (Ts_min) - Temperature Max (Ts_max) - Time (Ts_min t Ts_max) (ts) Time maintained abve: - Temperature (TL) - Time (tl) 100 C 150 C secnds 150 C 200 C secnds 183 C secnds 217 C secnds Peak Temperature (Tp) Time within 5 C f actual Peak Temperature (t) secnds secnds Ramp-dwn Rate 6 C/secnd max. 6 C/secnd max. Time 25 C t Peak Temperature 6 minutes max. 8 minutes max. * Cautin 1. Reflw sldering shuld nt be dne mre than ne time. 2. Repairs shuld nt be dne after the LEDs have been sldered. When repair is unavidable, suitable tls must be used. 3. Die slug is t be sldered. 4. When sldering, d nt put stress n the LEDs during heating. 5. After sldering, d nt warp the circuit bard. 6. Recmmend t use a cnvectin type reflw machine with 7 ~ 8 znes. 11

12 Emitter Tape & Reel Packaging CATHODE MARK Ntes: 1.Quantity : 100pcs/Reel 2.Cumulative Tlerance : Cumulative Tlerance/10 pitches t be ±0.2mm 3.Adhesin Strength f Cver Tape : Adhesin strength t be 10-60g when the cver tape is turned ff frm the carrier tape at the angle f 10º t the carrier tape 12

13 Emitter Tape & Reel Packaging 13

14 Prduct Nmenclature Y1Y2Y3Y4Y5Y6 Y 1 Y 1 Y 2 Y 3 Y 3 Y 4 Y 5 Y 5 Y 5 Y 5 Y 5 - Y 6 Y 6 Y 6 - Y 7 Y 7 Y 7 - Y 8 Y 8 Y 8 Y 8 Y 8 Y 8 Table 5. Part Numbering System: X 1 X 2 X 3 X 4 X 5 X 6 X 7 X 8 Part Number Cde Descriptin Part Number Value X 1 Cmpany C SVC X 2 UV LED U X 3 X 4 Wavelength D8 Deep UV 285nm X 5 Package Series G CA3535 X 6 Lens type F Flat windw X 7 Chip Q ty 1 1 chip A Small Area Chip X 8 Versin B Large Area Chip C Ver2 Table 6. Lt Numbering System: Y 1 Y 1 Y 2 Y 3 Y 3 Y 4 Y 5 Y 5 Y 5 Y 5 Y 5 - Y 6 Y 6 Y 6 - Y 7 Y 7 Y 7 - Y 8 Y 8 Y 8 Y 8 Y 8 Y 8 Lt Number Cde Y 1 Y 2 Y 3 Y 4 Y 5 Y 6 Y 7 Y 8 Descriptin Year Mnth Day Prductin area Mass rder Taping number Reel number Internal management number 14

Precautin fr Use A. UV Light These devices are ultravilet LEDs. During peratin, the LED emits high intensity ultravilet (UV) light, which is harmful t skin and eyes.

15 Precautin fr Use A. UV Light These devices are ultravilet LEDs. During peratin, the LED emits high intensity ultravilet (UV) light, which is harmful t skin and eyes. D nt lk directly int the UV light and wear prtective equipment during peratin. UV light is hazardus t skin and may cause cancer. Avid expsure t UV light when LED is peratinal. Precautins must be taken t avid lking directly at the UV light withut the use f UV light prtective glasses. D nt lk directly at the frnt f the LED r at the LED s lens when LED is peratinal. Attach the fllwing warning labels n prducts/systems that use UV LEDs. B. Static Electricity Electrstatic discharge (ESD) is the defined as the release f static electricity when tw bjects cme int cntact. While mst ESD events are cnsidered harmless, it can be an expensive prblem in many industrial envirnments during prductin and strage. The damage frm ESD t an LEDs may cause the prduct t demnstrate unusual characteristics such as: - Increase in reverse leakage current lwered turn-n vltage - Abnrmal emissins frm the LED at lw current The fllwing recmmendatins are suggested t help minimize the ptential fr an ESD event. One r mre recmmended wrk area suggestins: - Inizing fan setup - ESD table/shelf mat made f cnductive materials - ESD safe strage cntainers One r mre persnnel suggestin ptins: - Antistatic wrist-strap - Antistatic material shes - Antistatic clthes Envirnmental cntrls: - Humidity cntrl (ESD gets wrse in a dry envirnment) 15

16 Precautin fr Use C. Operating Cnditins 16 In rder t ensure the crrect functining f these LEDs, cmpliance t the maximum electrical specificatins is paramunt. These LEDs are particularly sensitive t any current value that exceeds the abslute maximum rating f the prduct. Any applied current in excess f the maximum specificatin will cause damage and pssible cmplete failure f the prduct. The current flwing in a LED is an expnential functin f the vltage acrss it. A small change in vltage can prduce a very large change in current and lead t cmplete failure f the LED. The use f current regulated drive circuits are recmmended fr these prducts. Any attempt t drive these UV LEDs with a vltage surce instead f a current surce will cause damage and pssible cmplete failure f the prduct. These devices are nt designed t be used under negative bias. This device is nt t be used in any type f fluid such as water, il, rganic slvent, etc. These LEDs are susceptible t heat generatin. Use care t design end prduct with adequate thermal management t ensure that LEDs d nt exceed maximum recmmended temperatures. Operating LEDs at temperatures in excess f specificatin will result in damage and pssible cmplete failure f the prduct. When the LEDs are in peratin the maximum current shuld be decided after measuring the package temperature. The driving circuit must be designed t allw frward vltage nly when it is ON r OFF. If the reverse vltage is applied t LED, migratin can be generated resulting in LED damage. EOS (Electrical Over Stress) EOS is defined as damage that may ccur when an electrnic device is subjected t a current r vltage that is beynd the maximum specificatin limits f the device. The effects frm an EOS event can be nticed thrugh prduct perfrmance like: Changes t the perfrmance f the LED package (If the damage is arund the bnd pad area and since the package is cmpletely encapsulated the package may turn n but flicker r shw severe perfrmance degradatin.) Changes t the light utput f the luminaire frm cmpnent failure Cmpnents n the bard nt perating at determined drive pwer Failure f perfrmance frm an entire fixture due t changes in circuit vltage and current acrss ttal circuit causing trickle dwn failures. It is impssible t predict the failure mde f every LED expsed t electrical verstress as the failure mdes vary significantly, but there are sme cmmn signs that will indicate an EOS event has ccurred: Damaged may be nticed t the bnd wires (appearing similar t a blwn fuse) Damage t the bnd pads lcated n the emissin surface f the LED package (shadwing can be nticed arund the bnd pads while viewing thrugh a micrscpe) Anmalies nticed in the encapsulatin and phsphr arund the bnd wires.this damage usually appears due t the thermal stress prduced during the EOS event.

17 Precautin fr Use C. Operating Cnditins - Cntinued T help minimize the damage frm an EOS event Seul Visys recmmends utilizing: A surge prtectin circuit An apprpriately rated ver vltage prtectin device A current limiting device D. Strage T avid misture penetratin, we recmmend string UV LEDs in a dry bx with a desiccant. The recmmended temperature and relative humidity are between 5ºC and 30ºC and belw 50% respectively. LEDs must be stred prperly t maintain the device. If the LEDs are stred fr 3 mnths r mre after being shipped frm SETI, a sealed cntainer with a nitrgen atmsphere shuld be used fr strage. Replace the remained LEDs int the misture-prf bag and reseal the bag after wrk t avid thse LEDs being expsed t misture. Prlnged expsure t misture can adversely affect the perfrmance f the LEDs. If the package has been pen fr mre than 168hr r the clr f the desiccant changes, cmpnents shuld be dried fr 10-12hr at 60±5ºC. The cnditins f resealing shuld be as fllws: Temperature between 5 and 40ºC and relative humidity less than 30% E. Handling Precautins VOCs (Vlatile rganic cmpunds) emitted frm materials used in the cnstructin f fixtures can penetrate the LED packages and affect LED perfrmance and lifetime. Knwledge f the prperties f the materials selected t be used in the cnstructin f fixtures can help prevent these issues. When attaching LEDs, d nt use adhesives that utgas rganic vapr. Sldering shuld be dne as sn as pssible after pening the misture-prf bag. D nt rapidly cl device after sldering. D nt apply mechanical frce r excess vibratin during the cling prcess t nrmal temperature after sldering. Cmpnents shuld nt be munted n warped (nn cplanar) prtins f a PCB. The UV LED is prtected by a lens which requires careful handling Avid tuching glass lens parts especially with sharp tls such as tweezers Avid leaving fingerprints n glass lens parts. When ppulating bards in SMT prductin, there are basically n restrictins regarding the frm f the pick and place nzzle, except that excessive mechanical pressure n the surface must be prevented. 17

such as tweezers Avid leaving fingerprints n glass lens parts.

18 Precautin fr Use E. Handling Precautins - Cntinued The UV LED is prtected by a lens which requires careful handling Avid tuching glass lens parts especially with sharp tls such as tweezers Avid leaving fingerprints n glass lens parts. When ppulating bards in SMT prductin, there are basically n restrictins regarding the frm f the pick and place nzzle, except that excessive mechanical pressure n the surface must be prevented. D nt handle this prduct with acid r sulfur material in sealed space. F. Cleaning If cleaning is required, isprpyl alchl r water with immediate drying is recmmended. D nt use ultrasnic cleaning. 18

19 Cmpany Infrmatin Published by Seul Visys 2013 All Rights Reserved. Cmpany Infrmatin Seul Visys () manufactures light emitting dides (LEDs) with a full range f UV wavelengths frm UVC t UVA (under 400nm) fr Industrial Curing, Air/Water Purificatin, Disinfectin and Hme appliance. The cmpany is ne f the wrld leading UV LED supplier, hlding mre than 4,000 patents glbally, while ffering varius kinds f LED technlgies and applicatin-slutins in High pwer UV LED, UV sensr, UV LED Lamp and variety f UV LED surced Applicatins. The cmpany's brad prduct prtfli includes hybrid mdules fr unique applicatins such as UV disinfectin, dedrizatin, UV purificatin as well as custmized mdules fr yur Applicatin. Legal Disclaimer Infrmatin in this dcument is prvided in cnnectin with Seul Visys prducts. With respect t any examples r hints given herein, any typical values stated herein and/r any infrmatin regarding the applicatin f the device, Seul Visys hereby disclaims any and all warranties and liabilities f any kind, including withut limitatin, warranties f nn-infringement f intellectual prperty rights f any third party. The appearance and specificatins f the prduct can be changed t imprve the quality and/r perfrmance withut ntice. 19

Product Brief. UV CA3535 series (CUD7GF1A) Deep UV LED - 275nm CUD7GF1A. RoHS. Description. Features and Benefits. Key Applications CA CUD7GF1A

Product Brief. UV CA3535 series (CUD7GF1A) Deep UV LED - 275nm CUD7GF1A. RoHS. Description. Features and Benefits. Key Applications CA CUD7GF1A Deep UV LED - 275nm UV CA3535 series (CUD7GF1A) CUD7GF1A RHS Prduct Brief Descriptin CUD7GF1A is a deep ultravilet light emitting dide with peak emissin wavelengths frm 270nm t 280nm. The LED is encased