L1939_15 Datasheet, PDF (2/2 Pages) Hamamatsu Corporation – Infrared LED

s Emission spectrum
(Typ. Ta=25 ˚C, IF=50 mA)
100
Infrared LED L1939 series
s Radiant flux vs. forward current
1000
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
s Forward current vs. forward voltage
10000
(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)
80
100
L1939
1000
60
40
10
L1939-04
100
20
0
700
800
900
WAVELENGTH (nm)
1000
KLEDB0201EA
1
1
10
100
1000
10000
FORWARD CURRENT (mA)
KLEDB0146EA
10
1.0
1.5
2.0
2.5
FORWARD VOLTAGE (V)
3.0
KLEDB0147EA
s Directivity
20˚ ^10˚
0˚
10˚
(Typ. Ta=25 ˚C)
20˚
30˚
30˚
40˚
40˚
50˚
L1939
50˚
60˚
70˚
60˚
L1939-04 _70˚
80˚
80˚
90˚
90˚
100 80 60 40 20 0 20 40 60 80 100
RELATIVE RADIANT OUTPUT (%)
s Radiant output vs. ambient
temperature
(Typ. IF=50 mA)
+3
+2
+1
0
-1
-2
-3
-4
s Allowable forward current vs.
ambient temperature
(Typ.)
100
80
60
40
20
Except for reflection ingredient of the base.
-5
-40 -20 0 20 40 60 80 100
0
-40 -20
0
20 40 60 80 100
KLEDB0148EA
AMBIENT TEMPERATURE (˚C)
KLEDB0145EA
AMBIENT TEMPERATURE (˚C)
KLEDB0027EB
s Allowable forward current
vs. duty ratio
(Typ. Ta=25 ˚C)
10
PULSE WIDTH=1 µs
1
PULSE WIDTH=10 µs
PULSE WIDTH=100 µs
s Dimensional outlines (unit: mm)
➀ L1939
5.4 ± 0.1
CLEAR EPOXY RESIN 4.2 ± 0.1
➁ L1939-04
5.4 ± 0.2
4.7 ± 0.1
GLASS WINDOW
3.0 ± 0.1
0.1
0.45
LEAD
0.01
0.01
0.1
1
10
DUTY RATIO (%)
100
KLEDB0149EA
2.54 ± 0.2
0.45
LEAD
2.54 ± 0.2
COMMON TO CASE
KLEDA0009ED
COMMON TO CASE
KLEDA0053EB
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2001 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: [phone], Fax: [phone], http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: [phone], Fax: [phone]
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone]
France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone]
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: [phone], Fax: [phone]
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: [phone], Fax: [phone]
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone]
Cat. No. KLED1023E01
Apr. 2001 DN