RLD78MRA1

www.DataSheet4U.com RLD78MRA1 Laser Diodes 780nm Low Power Lasers RLD78MRA1 A long-run product with market-proved high reliability. Matching to various needs. zApplications CD-ROM CD player etc. zDimensions (Unit : mm) Equivalent circuit diagram 4.9 2 1 0.4 φ5.6 zFeatures 1) Optical power output : CW 4.5mW 2) Low noise 3) High precision φ5.6 metal stem 0.82 1.5 0.62 0.4 5.0 3.2 Optical distance 1.6 1.5 0.7 0.22 (3) LD (1) (2) PD 1.35±0.1 3-0.55max 3-0.4 (2) (3) (1) 1.6 1.6 zAbsolute maximum ratings (Tc=25°C) Parameter Output Reverse voltage Laser Photodiode Operating temperature Storage temperature Symbol PO VR VR(PIN) Topr Tstg Limits 4.5 2 30 −10 to +70 −40 to +85 Unit mW V V °C °C zElectrical and optical characteristics (Tc=25°C) Parameter Threshold curret Operating current Operating voltage Differential efficiency Monitor current Parallel diveragence angle Perpendicular divergence angle Parallel deviation angle Perpendicular deviation angle Emission point accuracy Peak emission wavelength Signal-to-Noise ratio Symbol Ith Iop Vop η Im θ // θ⊥ ∆θ // ∆θ ⊥ Min. − − − 0.1 0.05 8 20 −3 −3.6 Typ. 35 45 1.9 0.25 0.15 11 37 0 0 0 785 − Max. 60 70 2.3 0.6 0.48 15 45 3 3.6 100 810 − Unit mA mA V PO=3mW PO=3mW PO=3mW, VR(PIN)=15V Conditions − mW/mA 2mW/ (I (3mW)− I (1mW)) mA deg deg deg deg µm nm dB PO=3mW f=720kHz, ∆f=10kHz, PO=3mW − PO=3mW ∆X,∆Y,∆Z −100 λ S/N 770 60 5 1/2 www.DataSheet4U.com RLD78MRA1 Laser Diodes zElectrical and optical characteristics cu...