Technical Data Sheet 1.9mm Round Subminiature Axial Phototransistor PT91-21C Features ․Fast response time ․High photo sensitivity ․Small junction capacitance ․Compatible with infrared and vapor phase reflow solder process. ․Pb free ․RoHS Compliance ․The product itself will remain within RoHS compliant version. Descriptions ․PT91-21C is a phototransistor in miniature SMD package which is molded in water clear plastic with spherical top view lens. The device is spectrally matched to infrared emitting diode. Applications ․Miniature switch ․Counters and sorter ․Position sensor ․Infrared applied system Device Selection Guide Chip LED Part No. Lens Color Material PT Silicon Water clear Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 1 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI

PT91-21C Package Dimensions Notes: 1.All dimensions are in millimeters 2.Tolerances unless dimensions ±0.1mm Absolute Maximum Ratings (Ta=25℃) Parameter Symbol Rating Units Collector-Emitter Voltage V 30 V CEO V Emitter-Collector-Voltage V 5 ECO mA Collector Current I 20 C ℃ Operating Temperature T -25 ~ +85 opr ℃ Storage Temperature T -40 ~ +85 stg ℃ Soldering Temperature T 260 sol mW Power Dissipation at(or below) P 75 c 25℃Free Air Temperature Notes: *1:Soldering time≦5 seconds. Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 2 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI

PT91-21C Electro-Optical Characteristics (Ta=25℃) Parameter Symbol Condition Min Typ Max Unit Rang Of Spectral Bandwidth λ --- 400 --- 1100 nm 0.5 Wavelength Of Peak Sensitivity λ --- --- 940 --- nm P Collector-Emitter Breakdown I =100μA B C 30 --- --- V Voltage VCEO Ee=0mW/cm2 Emitter-Collector Breakdown I =100μA B E 5 --- --- V Voltage VECO Ee=0mW/cm2 Collector-Emitter Saturation I =2mA V C --- --- 0.4 V Voltage CE(sat) Ee=1m W/cm2 V =20V Collector Dark Current I CE --- --- 100 nA CEO Ee=0mW/cm2 V =5V On State Collector Current I CE 1.0 1.5 --- mA C(ON) Ee=1mW /cm2 Rise Time tr VCE=5V --- 15 --- I =1mA μS C Fall Time tf R =1000Ω --- 15 --- L Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 3 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI

 PT91-21C Typical Electro-Optical Characteristics Curves Fig.1Collector Power Dissipation vs. Fig.2 Spectral Sensitivity Ambient Temperature 100 1.0 Ta=25 C 80 0.8 60 0.6 40 0.4 20 0.2 0 0 -25 0 25 50 75 85 100 100 300 500 700 900 1100 1300 Fig.3 Relative Collector Current vs. Fig.4 Collector Current vs. Ambient Temperature Irradiance 10 160 140 2 C 120 1 100 80 0.1 60 40 0.01 20 0 0.001 0 10 20 30 40 50 60 70 0.01 0.1 1 10 2 Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 4 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI

PT91-21C Typical Electro-Optical Characteristics Curves Fig.5 Collector Dark Current vs. Fig.6 Collector Current vs. Ambient Temperature Collector-Emitter Voltage 10 14 12 10 10 8 10 6 4 10 2 10 0 0 25 50 75 100 0 1 2 3 4 Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 5 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI

PT91-21C Precautions For Use 1. Over-current-proof Customer must apply resistors for protection , otherwise slight voltage shift will cause big current change ( Burn out will happen ). 2. Storage 2.1 Do not open moisture proof bag before the products are ready to use. 2.2 Before opening the package, the LEDs should be kept at 30℃ or less and 90%RH or less. 2.3 The LEDs should be used within a year. 2.4 After opening the package, the LEDs should be kept at 30℃ or less and 70%RH or less. 2.5 The LEDs should be used within 168 hours (7 days) after opening the package. 2.6 If the moisture absorbent material (silica gel) has faded away or the LEDs have exceeded the storage time, baking treatment should be performed using the following conditions. Baking treatment : 60±5℃ for 24 hours. 3. Soldering Condition 3.1 Pb-free solder temperature profile 3.2 Reflow soldering should not be done more than two times. 3.3 When soldering, do not put stress on the LEDs during heating. 3.4 After soldering, do not warp the circuit board. Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 6 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI

PT91-21C 4.Soldering Iron Each terminal is to go to the tip of soldering iron temperature less than 280℃ for 3 seconds within once in less than the soldering iron capacity 25W. Leave two seconds and more intervals, and do soldering of each terminal. Be careful because the damage of the product is often started at the time of the hand solder. 5.Repairing Repair should not be done after the LEDs have been soldered. When repairing is unavoidable, a double-head soldering iron should be used (as below figure). It should be confirmed beforehand whether the characteristics of the LEDs will or will not be damaged by repairing. Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 7 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI

PT91-21C Reliability Test Item And Condition The reliability of products shall be satisfied with items listed below. Confidence level：90% LTPD：10% NO. Item Test Conditions Test Hours/ Sample Failure Ac/Re Cycles Sizes Judgement Criteria 1 REFLOW Soldering TEMP.：260℃±5℃ 6Mins 22pcs 0/1 5secs 2 Temperature Cycle H : +100℃ 15mins 50Cycles 22pcs IC(ON)≦L×0.8 0/1 5mins L : -40℃ 15mins L：Lower 3 Thermal Shock H :+100℃ 5mins 50Cycles 22pcs Specification 0/1 10secs Limit L :-10℃ 5mins 4 High Temperature TEMP.：+100℃ 1000hrs 22pcs 0/1 Storage 5 Low Temperature TEMP.：-40℃ 1000hrs 22pcs 0/1 Storage 6 DC Operating Life V =5V 1000hrs 22pcs 0/1 CE 7 High Temperature/ 85℃ / 85% R.H 1000hrs 22pcs 0/1 High Humidity Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 8 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI

PT91-21C Packing Quantity Specification 1.1000PCS/1Bag，20Bags/1Box 2.10Boxes/1Carton Label Form Specification CPN: Customer’s Production Number P/N : Production Number QTY: Packing Quantity RoHS CAT: Ranks PT91-21C HUE: Peak Wavelength REF: Reference LOT No: Lot Number MADE IN TAIWAN: Production Place Notes 1. Above specification may be changed without notice. EVERLIGHT will reserve authority on material change for above specification. 2. When using this product, please observe the absolute maximum ratings and the instructions for using outlined in these specification sheets. EVERLIGHT assumes no responsibility for any damage resulting from use of the product which does not comply with the absolute maximum ratings and the instructions included in these specification sheets. 3. These specification sheets include materials protected under copyright of EVERLIGHT corporation. Please don’t reproduce or cause anyone to reproduce them without EVERLIGHT’s consent. EVERLIGHT ELECTRONICS CO., LTD. Tel: 886-2-2267-2000, 2267-9936 Office: No 25, Lane 76, Sec 3, Chung Yang Rd, Fax: 886-2267-6244, 2267-6189, 2267-6306 Tucheng, Taipei 236, Taiwan, R.O.C http:\\www.everlight.com Everlight Electronics Co., Ltd. http:\\www.everlight.com Rev 4 Page: 9 of 9 Device No：DPT-091-008 Prepared date：07-20-2005 Prepared by：JAINE TSAI