HAMAMATSU L3989-02, L3989-01, L3989 Datasheet

LED

Infrared LED

L3989 series

High power infrared LED

Features

l

High reliability

l

High radiant output power

l

High-speed response

Absolute maximum ratings (Ta=25 °C)

■

Parameter Symbol

Forward current I
Reverse voltage V

Pulse forward current I

Operating temperature Topr -30 to +85
Storage temperature Tstg -40 to +100 *
* L3989 is guaranteed to resist temperature cycle test of up to 5 cycles.

F

R

FP

Condition

Pulse width=10 µs
Duty ratio=1 %

Applications

l

Optical fiber communication

l

Spatial light transmission

l

Optical switch

Value Unit

80 mA

3 V

0.8 A

C

°

C

°

Electrical and optical characteristics (Ta=25 °C)

■

Parameter Symbol Condition

Peak emission wavelength

Spectral half width
Forward voltage VFIF=50 mA - 1.45 1.60 - 1.45 1.60 - 1.45 1.60 V
Pulse forward voltage V
Reverse current I
Radiant flux
Radiant illuminance PEIF=50 mA - 0.9 - - 2.2 - - 0.9 - mW/cm
Cut-off frequency fc IF=50 mA + 1 mAp-p 15 30 - 15 30 - 15 30 - MHz

IF=50 mA 800 830 860 800 830 860 800 830 860 nm

p

λ

IF=50 mA - 40 - - 40 - - 40 - nm

∆λ

FPIF

=0.8 A - 2.3 2.9 - 2.3 2.9 - 2.3 2.9 V

R

VR=3 V - - 10 - - 10 - - 10 µA
IF=50 mA 6.0 8.0 - 2.5 3.6 - 4.0 5.8 - mW

e

φ

L3989 L3989-01 L3989-02

Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.

Unit

2

Infrared LED

5.4 ± 0.2

4.7 ± 0.1

GLASS WINDOW

4.0 ± 0.1

2.7 ± 0.2

13.5

2.54 ± 0.2

COMMON TO CASE

0.45
LEAD

FORWARD VOLTAGE (V)

(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)

FORWARD CURRENT (mA)

1.51.0

10

1000

100

2.0 2.5

-40 -20 0 20

(Typ.)

40 60 80 100

0

40

60

80

100

AMBIENT TEMPERATURE (˚C)

RELATIVE ALLOWABLE FORWARD CURRENT (%)

20

L3989 series

■ Emission spectrum ■ Radiant flux vs. forward current

100

80

60

40

20

RELATIVE RADIANT OUTPUT (%)

0

800700

WAVELENGTH (nm)

■ Directivity

20˚ 10˚ 0˚ 10˚ 20˚

30˚

40˚

50˚

60˚

70˚

80˚

90˚

L3989-02

RELATIVE RADIANT OUTPUT (%)

(Typ. Ta=25 ˚C, IF=50 mA)

(Typ. Ta=25 ˚C)

100

%

80 %

L3989

60 %

40

L3989-01

%

20
%

900 1000

30˚

40˚

50˚

60˚

70˚

80˚

90˚

1000

100

10

RADIANT FLUX (mW)

1

KLEDB0212EA

■ Radiant output vs. ambient

temperature

+3

+2

+1

0

-1

-2

-3

-4

RELATIVE RADIANT OUTPUT (dB)

-5

KLEDB0215EA

(Typ. Ta=25 ˚C, tw=100 µs, 0.1 %)

L3989

L3989-02

L3989-01

101

100 1000

FORWARD CURRENT (mA)

(Typ. IF=50 mA)

0-20-40

20 40 60 80 100

AMBIENT TEMPERATURE (˚C)

■ Forward current vs. forward voltage

KLEDB0213EA

■ Allowable forward current vs.

ambient temperature

KLEDB0216EA

KLEDB0214EA

KLEDB0027EB

■ Dimensional outlines (unit: mm)
➂ L3989-02➁ L3989-01➀ L3989

0.45
LEAD

5.4 ± 0.2

4.65 ± 0.1

2.54 ± 0.2

6.65 ± 0.213.5

4.5 ± 0.2

KLEDA0064EB KLEDA0068EA

5.4 ± 0.1

CLEAR EPOXY RESIN

4.2 ± 0.1

2.3 ± 0.3

0.45
LEAD

13.5

1.12 ± 0.1

2.54 ± 0.2

COMMON TO CASE

HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, 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.: 8, 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]

COMMON TO CASE

KLEDA0067EA

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.

Cat. No. KLED1032E01
Apr. 2001 DN