÷÷4.6

M

R

4

3

0

W

•Light Emitting Diodes LED43-PR are designed for emitting at a spectral

range around 4300 nm. Heterostructures (HS) are grown on InAs

substrates. The output emission can be modulated by current flowing in

a forward direction.

•Light Emitting Diodes LED43-PR are developed for using in optical gas

sensors and medical diagnostics. They have stable output power and

lifetime more then 10000 hours.

•Related products: our standard LED Driver

provides power supply of

LED43-PR in two recommended here regimes (Quasi-CW and Pulsed).

Parameters

Min

Typ

Max

Wavelength,

µm

4.10

4.20

4.30

FWHM,

µm

0.75

0.90

1.05

Optical Power,

µW

Quasi-CW @ 200 mA

Pulsed@1A

8

180

10

200

12

220

Switching Time, ns

10

30

50

Operating Temperature

Range,

-240

÷+50

Emitting Area,

µm

300x300

Soldering temperature

260

Package

TO-18 with Parabolic Reflector

LED43 - typical Power vs. current

characteristic

0

2

4

6

8

10

0

50

100

150

200

Current, mA

LED43 - typical Current - Voltage

characteristic

-40

-30

-20

-10

0

10

20

30

40

-2

-1

0

1

2

Voltage,V

Far field pattern

with and without reflector

0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

1

LED43 (without reflector)

LED43-PR (with reflector)

Recommended regimes of operation

Quasi-CW

200 mA

250

µs

250

µs

1

µs

2 A

500

µs

f=2 kHz

f=2 kHz

Pulse

Package TO-18 with Reflector

LED43 - typical spectra

at different temperatures

0,0

0,5

1,0

1,5

2,0

2,5

3,0

3,5

2800 3000 3200 3400 3600 3800 4000 4200 4400 4600 4800 5000 5200

Wavelength, nm

T=3 C

T=21 C

T=47 C