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LA-301AB
LA-301 B / L Series LED displays Single Digit LED Numeric Display LA-301 B / L Series Dimensions (Unit : mm) 7.0 10˚ (2.0) φ0.8 5.0 1.0 4.0 0.5 +0.1 0 8.0 11.0 Features 1) The height of a letter is 8mm. 2) The light don’t leak from the segment in spite of the small package. 3) The package of surface color is black. Color of segment is colored in emitting color. (Blue color is only milky white) 4) Each color has anode common and cathode common respectively. (8.0) 1.0 LA-301 B / L series is developed because of the demand for small single digit LED Numeric Display. Materials of emission are GaAsP on GaP, AlGalnP, GaP and GaN. This is the height of a letter 8mm, single digit LED Numeric Display that is packed by epoxy resin. 3.8±0.5 0.25 +0.1 0 (5.3) Tolerance are ±0.3 unless otherwise noted: Selection guide Emitting color Red Common Anode Cathode Yellow Red Orange (High brightness) (High brightness) (High brightness) LA-301VB LA-301VL LA-301AB LA-301AL Pin assignments 1 2 3 4 5 6 7 8 9 10 1 + f b 3 + 5 + + 10 a 2 + e + 9 + 8 g + 7 c + 6 d D.P Equivalent circuit (anode common) Blue LA-301MB LA-301ML LA-301XB LA-301XL Pin No. Pin No. 4 + LA-301EB LA-301EL Green LA-301BB LA-301BL Function Segment "a" Segment "f" Segment "g" Segment "e" Segment "d" D.P Cathode D.P Anode Segment "c" Common Segment "b" (cathode common) COM 9 7 COM 9 7 a b c d e f g 1 10 8 5 4 2 3 D.P 6 a b c d e f g 1 10 8 5 4 2 3 D.P 6 Rev.C 1/4 LA-301 B / L Series LED displays Electrical and optical characteristic curve 10.00 Ta=25°C LA-301BB LA-301BL LA-301XB LA-301XL LA-301EB LA-301EL LA-301AB LA-301AL LA-301MB LA-301ML LA-301VB LA-301VL 10 1 4 0.10 0.01 5 1 10 Fig.2 Relative Luminous Intensity - Forward Current 1.2 1 0.8 0.6 15 25 35 45 55 65 75 1 1 ) 100Hz 10000 10000 10 30Hz 100Hz 300Hz 30kHz 100kHz ( LA-301MB LA-301ML 300kHz 100Hz 200Hz 500Hz 2kHz 5kHz 10kHz 20kHz 50kHz 1kHz 1000 IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current ) ( IF peak Max. Ratio of Maximum Tolerance Peak IF Max. Current to Maximum Tolerance DC Current LA-301XB LA-301XL LA-301EB LA-301EL LA-301AB LA-301AL 100 1000 Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( Ι ) 10 10 100 Pulse Duration tw(µs) Fig.3 Relative Luminous Intensity - Case Temperature 1 200Hz 10 Case Temparature (°C) 1 500Hz 2kHz 5kHz 5 1kHz 5 LA-301BB LA-301BL 10kHz Relative Luminous Intensity 1.4 10 20kHz LA-301BB LA-301BL LA-301XB LA-301XL LA-301EB LA-301EL LA-301AB LA-301AL LA-301MB LA-301ML LA-301VB LA-301VL 50kHz IF=10mA ( 1.6 IF peak Max. Ratio of Maximum Tolerance Peak IF Max. Current to Maximum Tolerance DC Current ) Fig.1 Forward Current - Forward Voltage 0.4 -25 -15 -5 100 Forward Current:IF(mA) Forward Voltage:VF(V) 3kHz 3 LA-301BB LA-301BL LA-301XB LA-301XL LA-301EB LA-301EL LA-301AB LA-301AL LA-301MB LA-301ML LA-301VB LA-301VL 1.00 1kHz 2 Ta=25°C 10kHz 0.1 1 Relative Luminous Intensity Forward Current:IF(mA) 100 1 1 10 100 1000 10000 100000 Pulse Duration : Tw (µs) Pulse Duration : tw(µs) Fig.5 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( ΙΙ ) Fig.6 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( ΙΙΙ ) Rev.C 3/4
ROHM
ローム株式会社
日本
炭素皮膜抵抗の特許を元に創業した。社名のROHM（R:抵抗 Ohm:抵抗を示す単位）はそこに由来する。その後、大規模集積回路の製造を手がけ始め、現在は様々な機能を顧客の要望に応じてLSI上に集積するカスタムLSIが主力となっている。
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