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PT28-21B-F8 Dataheets PDF



Part Number PT28-21B-F8
Manufacturers Everlight Electronics
Logo Everlight Electronics
Description 1.3mm Axial Flat Top Phototransistor
Datasheet PT28-21B-F8 DatasheetPT28-21B-F8 Datasheet (PDF)

Technical Data Sheet 1.3mm Axial Flat Top Phototransistor Features ․Flat response time ․High photo sensitivity ․Small junction capacitance ․Pb-free ․The product itself will remain within RoHS compliant version. Descriptions ․PT28-21B/F8 is a phototransistor in miniature SMD package which is molded in a black plastic with flat top view lens. The device is spectrally matched to infrared emitting diode. Applications ․Miniature switch ․Counters and sorter ․Position sensor ․Infrared applied system .

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Technical Data Sheet 1.3mm Axial Flat Top Phototransistor Features ․Flat response time ․High photo sensitivity ․Small junction capacitance ․Pb-free ․The product itself will remain within RoHS compliant version. Descriptions ․PT28-21B/F8 is a phototransistor in miniature SMD package which is molded in a black plastic with flat 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 LED Part No. Chip Material PT Silicon Resin Color Black PT28-21B/F8 Everlight Electronics Co., Ltd. Device No:SZDTT-281-002 http:\\www.everlight.com Prepared date:5-Dec-2007 Rev 1 Page: 1 of 9 Prepared by:Qilong Chen Package Dimensions PT28-21B/F8 Notes: 1.All dimensions are in millimeters 2.Tolerances unless dimensions ±0.1mm Everlight Electronics Co., Ltd. Device No:SZDTT-281-002 http:\\www.everlight.com Prepared date:5-Dec-2007 Rev 1 Page: 2 of 9 Prepared by:Qilong Chen Absolute Maximum Ratings (Ta=25℃) Parameter Symbol Collector-Emitter Voltage Emitter-Collector-Voltage Collector Current Operating Temperature Storage Temperature Power Dissipation at(or below) 25℃Free Air Temperature VCEO VECO IC Topr Tstg Pc Soldering Temperature Tsol Notes: *1:Soldering time≦5 seconds. Rating 30 5 20 -25 ~ +85 -40 ~ +100 75 PT28-21B/F8 Units V V mA ℃ ℃ mW Reflow Soldering : 260 ℃ for 10 sec. Hand Soldering : 350 ℃ for 3 sec. Electro-Optical Characteristics (Ta=25℃) Parameter Symbol Condition Rang Of Spectral Bandwidth λ0.5 --- Wavelength Of Peak Sensitivity Collector-Emitter Breakdown Voltage λP BVCEO --- IC=100μA Ee=0mW/cm2 Emitter-Collector Breakdown Voltage BVECO IE=100μA Ee=0mW/cm2 Collector-Emitter Saturation Voltage VCE(sat) IC=2mA Ee=1m W/cm2 Collector Dark Current ICEO VCE=20V Ee=0mW/cm2 Min Typ Max Unit 730 --- 1100 nm --- 940 --- nm 30 --- --- V 5 --- --- V --- --- 0.4 V --- --- 100 nA On State Collector Current IC(ON) VCE=5V Ee=1mW /cm2 0.1 0.3 ---- mA Rise Time Fall Time tr VCE=5V --- 15 --- IC=1mA μS tf RL=1000Ω --- 15 --- Everlight Electronics Co., Ltd. Device No:SZDTT-281-002 http:\\www.everlight.com Prepared date:5-Dec-2007 Rev 1 Page: 3 of 9 Prepared by:Qilong Chen PT28-21B/F8 Typical Electro-Optical Characteristics Curves Fig.1Collector Power Dissipation vs. Fig.2 Spectral Sensitivity Ambient Temperature 100 1.0 Ta=25OC 80 0.8 60 0.6 40 20 0 -25 0 25 50 75 85 100 0.4 0.2 0 600 700 800 900 1000 1100 1200 Fig.3 Relative Collector Current vs. Ambient Temperature 160 140 2 120 100 80 60 40 20 0 0 10 20 30 40 50 60 70 Fig.4 Collector Current vs. Irradiance 100 C 10 1 0.1 0.01 0.5 1 3 2 5 Everlight Electronics Co., Ltd. Device No:SZDTT-281-002 http:\\www.everlight.com Prepared date:5-Dec-2007 Rev 1 Page: 4 of 9 Prepared by:Qilong Chen PT28-21B/F8 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 10 4 2 10 0 25 50 75 100 0 0 123 4 Everlight Electronics Co., Ltd. Device No:SZDTT-281-002 http:\\www.everlight.com Prepared date:5-Dec-2007 Rev 1 Page: 5 of 9 Prepared by:Qilong Chen PT28-21B/F8 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 After opening the package: The LED's floor life is 1 year under 30℃or less and 60% RH or less. If unused LEDs remain, it should be stored in moisture proof packages. 2.4 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. Device No:SZDTT-281-002 http:\\www.everlight.com Prepared date:5-Dec-2007 Rev 1 Page: 6 of 9 Prepared by:Qilong Chen PT28-21B/F8 4.Soldering Iron Each terminal is to go to the tip of soldering iron temperature less than 350℃ 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 character.


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