1

Infrared LED

L9337 series

High power LED for optical switches

www.hamamatsu.com

The L9337 series is an infrared LED developed for optical switches. Because a high-power LED chip is mounted, the L9337

series provides higher radiant output power than previous devices, moreover it is available at a low cost due to the improved

manufacturing process. The L9337-01/-02 use a high reliability package making them suitable for automobile applications.

High radiant output power

Automobiles

High reliability

Optical switches

Low price

Features

Applications

Absolute maximum ratings (Ta=25 °C, unless otherwise noted)

Parameter

Symbol

Condition

Value

Unit

Reverse voltage

5V

Forward current

80

mA

Forward current decrease rate

-

Ta > 25 °C

1.1

mA/°C

Pulse forward current

Pulse width=10 μs

Duty ratio=1%

1.0

A

Pulse forward current

decrease rate

-

Ta > 25 °C

13

mA/°C

Power dissipation

P

150

mW

Operating temperature

Topr

-30 to +85

°C

Storage temperature

Tstg

°C

*

1: The L9337 is guaranteed to resist temperature cycle test of up to 5 cycles.

Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the

product within the absolute maximum ratings.

Electrical and optical characteristics (Ta=25 °C)

Parameter

Symbol

Condition

L9337

L9337-01

L9337-02

Unit

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

Peak emission wavelength

λp

840 870 900 840 870 900 840 870 900

nm

Spectral half width

Δλ

-45-

-45-

-45-

nm

Forward voltage

-

1.42 1.5

-

1.42 1.5

-

1.42 1.5

V

Pulse forward voltage

-

2.7

3.4

-

2.7

3.4

-

2.7

3.4

V

Reverse current

-

-5-

-5-

-5

μA

Radiant flux

φe

18

23-10

13-

7.5

10-

mW

fc

25

40-25

40-25

40-

MHz

*

2: Frequency at which the optical output drops by -3 dB from that at 100 kHz.