1

Infrared LED

Small emission spot LED using current con-

ned chip

L10596 series

www.hamamatsu.com

The L10596 is infrared LED with a microball lens cemented to the current con nement chip surface. This combination ensures

narrow directivity and uniform emission. In particular, the L10596-02 uses a lens cap that delivers even narrower directivity. As a

variant type not using a microball lens, the L10596-03 is also available with the LED chip potted with resin, which gives a small

emission spot of φ160 m. The L10569 series has a light-re ecting layer inserted between the emission section and the GaAs

substrate, which increases the light output by 1.5 times (L10596-03: 1.3 times) that of conventional products.

Absolute maximum ratings (Ta=25 °C)

Electrical and optical characteristics (Ta=25 °C)

Parameter

Symbol

Condition

Value

Unit

Forward current

80

mA

Reverse voltage

3V

Pulse forward current

Pulse width=10 s

Duty ratio=1%

0.45

A

Operating temperature

Topr

-30 to +85

°C

Storage temperature

Tstg

-40 to +100

°C

*

1: The L10596-03 is guaranteed to resist temperature cycle test of up to 5 cycles.

Features

Applications

Automatic control systems

High radiant output power:

L10596/-02: 3.0 mW (IF=50 mA typ.)

Optical switches

Uniform emission

Small emission spot:

L10596: φ400 m

L10596-03: φ160 m

Narrow directivity (L10596/-02)

Parameter

Symbol

Condition

L10596

L10596-02

L10596-03

Unit

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

Peak emission wavelength

λp

850

870

890

850

870

890

850

870

890

nm

Spectral half width

Δλ

-

35

50

-

35

50

-

35

50

nm

Forward voltage

-

1.6

1.8

-

1.6

1.8

-

1.6

1.8

V

Pulse forward voltage

-

3.3

4.1

-

3.3

4.1

-

3.3

4.1

V

Reverse current

-

-

10

-

-

10

-

-

10

A

Radiant ux

φe

2.1

3.0

-

2.1

3.0

-

5.0

6.5

-

mW

fc

10

15

-

10

15

-

10

15

-

MHz

*

2: Frequency at which the radiant output drops by 3 dB relative to the output at 100 kHz