BRIGHT LED ELECTRONICS CORP. BL-B51V1T SINCE 1981 ● Features: ● Package dimensions 1. Chip material: GaP/GaP 3.55(.140) 2. Emitted color : Bright Red 2.90(.114) 3. Lens Appearance : Red Trans 4. Low power consumption. 5.20(.205) 1.0(.039) 5. High efficiency. 6. Versatile mounting on P.C. Board or panel. 7. Low current requirement. 1.5(.059) MAX. 25.4(1.0) MIN. 9. This product don’t contained restriction CATHODE 8. 2.9mm diameter package. 0.5(.02) SQ. TYP. substance, compliance ROHS standard. 3.86(.152) 1.0(.04) MIN. 2.54(.10) NOM. ● Applications: Notes: 1. TV set 1. All dimensions are in millimeters (inches). 2. Monitor 2. Tolerance is ±0.25mm (0.01”) unless otherwise specified. 3. Lead spacing is measured where the leads emerge from the package. 4. Specifications are subject to change without notice. 3. Telephone 4. Computer 5. Circuit board ● Absolute Maximum Ratings(Ta=25℃) Parameter Symbol Rating Unit Power Dissipation Pd 40 mW Forward Current IF 15 mA Peak Forward Current*1 IFP 50 mA Reverse Voltage VR 5 V Operating Temperature Topr -40℃~80℃ Storage Temperature Tstg -40℃~85℃ Soldering Temperature Tsol 260℃(for 5 seconds) 1 * Condition for IFP is pulse of 1/10 duty and 0.1msec width. Ver.1.0 Page: 1 of 2 BRIGHT LED ELECTRONICS CORP. BL-B51V1T SINCE 1981 ● Electrical and optical characteristics(Ta=25℃) Parameter Symbol Condition Min. Typ. Max. Unit Forward Voltage VF IF=20mA - 2.2 2.6 V Luminous Intensity Iv IF=20mA - 6.0 - mcd Reverse Current IR VR=5V - - 100 µA Peak Wave Length λp IF=20mA - 700 - nm Dominant Wave Length λd IF=20mA - 650 - nm Spectral Line Half-width ∆λ IF=20mA - 100 - nm Viewing Angle 2θ1/2 IF=20mA - 35 - deg ● Typical electro-optical characteristics curves Fig.1 Relative intensity vs. Wavelength Fig.2 Forward current derating curve vs. Ambient temperature 1.0 60 Forward current(mA) Relative radiant intensity 50 0.5 40 30 20 10 0 600 700 0 800 20 Wavelength λ(nm) Fig.3 Forward current vs. Forward voltage Relative luminous intensity Forward current(mA) 80 100 3.0 40 30 20 10 1 2 3 4 2.5 2.0 1.5 1.0 0.5 0 -40 5 Forward voltage(V) -20 0 40 20 60 Ambient temperature Ta(℃) Fig.5 Relative luminous intensity vs. Forward current Fig.6 Radiation diagram 0 2.0 10 20 30 Relative radiant intensity Relative luminous intensity(@20mA) 60 Fig.4 Relative luminous intensity vs. Ambient temperature 50 0 40 Ambient temperature Ta(℃) 1.5 1.0 0.5 1.0 40 0.9 50 0.8 60 70 0.7 80 90 0 10 20 30 40 50 0.5 0.3 0.1 0.2 0.4 0.6 Forward current (mA) Ver.1.0 Page: 2 of 2