1

L10596 series

Small emission spot LED using current confined

chip

Infrared LED

www.hamamatsu.com

Absolute maximum ratings (Ta=25 °C)

Parameter

Symbol

Condition

Value

Unit

Forward current

80

mA

Reverse voltage

3V

Pulse forward current

Pulse width=10 μs

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.

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.

Applications

Automatic control systems

Optical switches

Features

High radiant output power:

Uniform emission

Small emission spot:

L10596: ϕ400 μm

L10596-03: ϕ160 μm

Narrow directivity (L10596/-02)

Electrical and optical characteristics (Ta=25 °C)

Parameter

Symbol

Condition

L10596

L10596-02

L10596-03

Unit

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

Peak emission wavelength

850

870

890

850

870

890

850

870

890

nm

Spectral half width

∆λ

-

3550

-

3550

-

3550

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

μA

Radiant flux

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

The L10596 is infrared LED with a microball lens cemented to the current confinement 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 ɸ160 μm. The L10569 series has a light-reflecting 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.