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What is 1A444?

This electronic component, produced by the manufacturer "Mitel Networks Corporation", performs the same function as "VCSEL Laser Diode(Datacom/ General Purpose)".


1A444 Datasheet PDF - Mitel Networks Corporation

Part Number 1A444
Description VCSEL Laser Diode(Datacom/ General Purpose)
Manufacturers Mitel Networks Corporation 
Logo Mitel Networks Corporation Logo 


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PRODUCT INFORMATION
840nm
1A444
VCSEL Laser Diode
Datacom, General Purpose
This Vertical Cavity Surface-
Emitting Laser is designed for Fibre
Channel, Gigabit Ethernet, ATM and
general applications. It operates in
multiple transverse and single longi-
tudinal mode, ensuring stable cou-
pling of power and low noise.
Ø4.7
Ø1.5
0.6
3.7
14
0.4
CASE
ANODE
CATHODE
2.5
5.4
BOTTOM VIEW
The chip is isolated from the case.
TO-46 Package With Lens
WARNING: Laser Radiation, avoid exposure
to beam. Class 3B laser product, potential
eye hazard. Warning labels in each box.
Optical and Electrical Characteristics (25°C Case Temperature)
PARAMETER
SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION
Fiber-Coupled Power
Pfiber
1.3 mW IF =12mA (Note 1)
Optical Power
Po 0.9 1.7 3.0 mW IF =12mA
Slope Efficiency
(dPo/dIF)
200 mW/A IF =12mA
Bandwidth
(3dBel )
fc 2 GHz IF =12mA
Peak Wavelength
p 830 840 860 nm IF =12mA
Spectral Width (FWHM)
0.5 1 nm IF =12mA
Forward Voltage (Fig.5)
VF
1.9 2.2 V IF =12mA
Threshold Current Ith 3.5 6 mA
Relative Intensity Noise RIN
-130 dB/Hz IF =12mA, f=1 GHz
Note 1: Fiber: 50/125 Graded Index, NA=0.2 or 62.5/125 Graded Index, NA=0.275.
Absolute Maximum Ratings
PARAMETER
Storage Temperature
Operating Temperature (derating: Fig.4)
Electrical Power Dissipation (derating: Fig.4)
Continuous Forward Current (fр10 kHz)
Peak Forward Current (duty cycleр50%, fу1 MHz)
Reverse Voltage
Soldering Temperature (2mm from the case for 10 sec)
SYMBOL
Tstg
Top
Ptot
IF
IFRM
VR
Tsld
LIMIT
-55 to +125ЊC
0 to +70ЊC
35 mW
15 mA
25 mA
1.5 V
260ЊC
Thermal Characteristics
PARAMETER
SYMBOL MIN. TYP.
Thermal Resistance - Infinite Heat Sink
Thermal Resistance - No Heat Sink
Temp. Coefficient -Wavelength
Optical Power - Variation 0 to 70ЊC
Rthjc
Rthja
d/dTj
P
400
700
0.06
Ϯ0.7
Threshold Current - Variation 0 to 70ЊC Ith
Ϯ0.6
MAX.
UNIT
ЊC/W
ЊC/W
nm/ЊC
dB
mA
13457.11 1999-04-01
Europe: Tel (46) 8 58 02 45 00 Fax (46) 8 58 02 01 10
Tel (44) 1291 436180 Fax (44) 1291 436771
America: Tel 1-800-96MITEL Fax (613) 592-6909
Asia:
Tel (65) 293 5312 Fax (65) 293 8527

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1A444 equivalent
PRODUCT INFORMATION
ST-2A
Package
Emitter or Detector in ST® Package
Mitel emitters and detectors can be
provided in this low-profile ST®
package. The device is electrically
isolated from the ST® receptacle to
facilitate electrical connection. And
optimum fiber-coupled power or
responsivity is ensured by active
alignment against the fiber.
Absolute Maximum Ratings
PARAMETER
Operating & Storage Temperature
ST-2A (Note 1)
SYMBOL
Tstg, Top
Note 1: Temperature range can be extended to -55° to +125°C on request.
LIMIT
-40 to +85ЊC
Thermal Characteristics
PARAMETER
SYMBOL MIN. TYP. MAX.
Thermal Resistance - Infinite Heat Sink Rthcc
(Note 2)
40
Thermal Resistance - No Heat Sink
(Note 2)
Rthca
200
Thermal Resistance - On PC Board
(Note 2)
Rthca
80
Note 2: Add Rthjc for emitter or detector to estimate the total thermal resistance.
UNIT
ЊC/W
ЊC/W
ЊC/W
2-56 UNC - 2B
max.0.5
3/8"-32 UNEF
Ø2.502
+0.01
0
FIBER
END
0.006
7.6 3.9
min.12
5.4
20.1
Ø2.5
+0
-0.004
7.89
MATING FERRULE*
(not included)
All Dimensions in mm
*The fiber-coupled power/responsivity is guaranteed to meet the LED/PIN data sheet - provided a ferrule meeting this specification is used.
Mechanical Outline of Diode in ST-2A Housing
(ST is a registered trademark of AT&T)
103326 1994-09-20
Europe: Tel (46) 8 58 02 45 00 Fax (46) 8 58 02 01 10
Tel (44) 1291 436180 Fax (44) 1291 436771
America: Tel 1-800-96MITEL Fax (613) 592-6909
Asia:
Tel (65) 293 5312 Fax (65) 293 8527


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for 1A444 electronic component.


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Featured Datasheets

Part NumberDescriptionMFRS
1A440The function is VCSEL Laser Diode(Datacom/ General Purpose). Mitel Networks CorporationMitel Networks Corporation
1A444The function is VCSEL Laser Diode(Datacom/ General Purpose). Mitel Networks CorporationMitel Networks Corporation
1A448The function is VCSEL Laser Diode(Datacom). Mitel Networks CorporationMitel Networks Corporation

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