Roithner LED34H-R Mid-ir led sery Datasheet

rev 2.0, 03.11.2017
LED34H series
Description
LED34H series are fabricated from narrow band-gap InAs/InAsSbP heterostructures lattice matched to
InAs substrate. This Mid-IR LEDs provide a typical peak wavelength of 3.40 µm, an optical power of typ.
50 µW QCW. There are different options of packaging available, as you can choose between TO-can, with
parabolic reflector (R), window (W), and containing thermoelectric cooler and thermoresistor (T).
Maximum Ratings
Parameter
Values
Symbol
Min.
IQCW max
IPULSE max
ISTR
TCASE
TSLD
Operating Current, QCW mode
Operating Current, pulsed mode
Storage Temperature *
Operating Temperature *
Lead Solder Temperature *²
Unit
Max.
250
2000
+90
+90
+180
-60
-60
mA
mA
°C
°C
°C
* Temperature range may vary for different packaging types
*² must be completed within 5 seconds
Photodiode Characteristics
(TCASE=25°C)
Parameter
Symbol
Conditions
Peak Wavelength
Half Width (FWHM)
Optical Output Power, QCW *
Optical Output Power, pulsed *²
Operating Voltage
Switching Time
λP
∆λ
PO
PO
VOP
ts
IF=150mA QCW
IF=150mA QCW
QCW mode *
Pulse mode *²
IF=200mA QCW
Min.
3.30
250
45
350
0.2
Values
Typ.
Max.
3.44
600
50
370
0.8
Unit
µm
nm
µW
µW
V
ns
* Repetition rate: 0.5 kHz, pulse duration: 1 ms, duty cycle: 50%, current: 200 mA
*² Repetition rate: 0.5 kHz, pulse duration: 20 µs, duty cycle: 1%, current: 1 A
Packages
Part Number
LED34H
LED34H-R
LED34H-RW
LED34H-TW
LED34H-TRW
Package
TO-18 with cap without glass window
TO-18 with parabolic reflector without glass window
TO-18 with parabolic reflector with glass window
TO-5 with built-in thermocooler and thermoresistor, covered by cap with glass window
TO-5 with built-in thermocooler and thermoresistor, covered by parabolic reflector with glass window
All parameters refer to LEDs in TO18 package with a cavity and operation at ambient temperature 25°C unless otherwise
stated.
www.roithner-laser.com
1
Performance Characteristics
Spectra At Different Temperatures (QCW)
Intensity [a.u.]
Intensity [a.u.]
Typ. Spectra At Different Currents (QCW)
Wavelength [nm]
Typ. Optical Power Characteristics (QCW)
Typ. Current – Voltage Characteristics (QCW)
Current [mA]
Output Power [µW]
Wavelength [nm]
Forward Current [mA]
Voltage [mV]
Radiant Characteristics (Far-Field Pattern)
www.roithner-laser.com
TO-18 package with Parabolic Reflector
Relative Radiant Intensity
Relative Radiant Intensity
TO-18 Package With Cap
2
Outline Dimensions
LED34H
TO-18, with cap, without window
Lead
Description
PIN 1
LED Cathode
PIN 2
LED Anode (red dot)
All Dimensions in mm
LED34H-R
www.roithner-laser.com
TO-18, with parabolic reflector, without window
Lead
Description
PIN 1
LED Cathode
PIN 2
LED Anode (red dot)
All Dimensions in mm
3
LED34H-RW
LED34H-TW
TO-18, with parabolic reflector and window
Lead
Description
PIN 1
LED Cathode
PIN 2
LED Anode (red dot)
All Dimensions in mm
TO-5, thermocooler and thermoresistor, cap and window
Lead Description
PIN 1 TEC +
PIN 2 LED Anode (red dot)
PIN 3 LED Cathode
PIN 4 Thermistor
PIN 5 Thermistor
PIN 6 TEC -
All Dimensions in mm
LED34H-TRW
TO-5, thermocooler and thermoresistor, cap and window
Lead Description
PIN 1 TEC +
PIN 2 LED Anode (red dot)
PIN 3 LED Cathode
PIN 4 Thermistor
PIN 5 Thermistor
PIN 6 TEC -
All Dimensions in mm
www.roithner-laser.com
4
Operating Regime
LED Basic Circuit Connection
LED With Thermoelectric Module
We recommend to use Quasi Continuous Wave (QCW) mode with duty cycle 50% or 25% to obtain maximum
average optical power and Pulse mode to obtain maximum peak power. Hard CW (continuous wave) mode is
NOT recommended.
Quasi Continuous Wave (QCW) mode
www.roithner-laser.com
Pulse Mode
5
Precautions
Cautions:
 Check your connection circuits before turning on the LED.
 Mind the LED polarity: LED anode is marked with a RED dot.
Reverse voltage applying is FORBIDDEN!
 DO NOT connect the LED to the multimeter.
 Control the current applied to the LED in order not to exceed the maximum allowable values.
Soldering:





Do avoid overheating of the LED
Do avoid electrostatic discharge (ESD)
Do avoid mechanical stress, shock, and vibration
Do only use non-corrosive flux
Do not apply current to the LED until it has cooled down to room temperature after soldering
Static Electricity:
LEDs are sensitive to electrostatic discharge (ESD). Precautions against ESD must be taken when handling
or operating these LEDs. Surge voltage or electrostatic discharge can result in complete failure of the device.
Operation:
Do only operate LEDs with a current source.
Running these LEDs from a voltage source will result in complete failure of the device.
Current of a LED is an exponential function of the voltage across it. Usage of current regulated drive circuits is
mandatory.
© All Rights Reserved
The above specifications are for reference purpose only and subjected to change without prior notice
www.roithner-laser.com
6
Similar pages