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Part: 1A255
Category:
Analog & Mixed-Signal Processing
-> Amplifiers
-> High Speed/Video Amplifiers
Description: High-performance Led ( Baseband Video )
Company: Mitel Networks Corporation
Datasheet: Download 1A255 datasheet File size : 55 kB
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PRODUCT INFORMATION
860nm
1A255
High-Performance LED
Baseband Video
The low thermal droop of this device allows baseband video transmission with minimum distortion. The double-lens optical system provides for optimum coupling of power into the fiber.
Optical and Electrical Characteristics
PARAMETER SYMBOL MIN. TYP . MAX. UNIT
(25° C Case Temperature) TEST CONDITION
Fiber-Coupled Power
(Fig. 1, 2,& 3) (Table 1)
Pfiber tr, tf fc l Pl
p
80
120 6 55 8
W ns MHz
IF =80 mA
(Note 1) Fiber: 62.5/125 m Graded
Rise and Fall Time
(10-90%)
IF =80 mA
(no bias)
Bandwidth
(3 dBel)
IF =80 mA IF =80 mA IF =80 mA IF =80 mA IF =80 mA VR=1V
Index NA= 0.275
Thermal Droop
(nonlinearity) (Note 2)
2 840 860 50 880
% nm nm 2.2 20 V A pF
Peak Wavelength Spectral Width (FWHM) Forward Voltage (Fig.5) Reverse Current Capacitance
VF IR C
1.8
250
VR= 0V, f=1 MHz
Note 1: Measured at the exit of 100 meters of fiber. Note 2: Transient decline in optical power due to self-heating.
Ø 4.7 Ø 1.5 0.6
Absolute Maximum Ratings
PARAMETER SYMBOL LIMIT
3.7
Storage Temperature
14
Tstg Top Ptot IF IFRM VR Tsld
-55 to +125 C -55 to +125 C 250 mW 110 mA 180 mA 1.5 V 260 C
Operating Temperature (derating: Fig.4) Electrical Power Dissipation (derating: Fig.4) Continuous Forward Current (f 10 kHz)
0.4
CASE
CATHODE
ANODE
All dimensions in mm
Peak Forward Current (duty cycle 50%, f 1 MHz) Reverse Voltage Soldering Temperature (2mm from the case for 10 sec)
2.5 5.4 BOTTOM VIEW
The anode is in electrical contact with the case.
TO-46 Package With Lens
Thermal Characteristics
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
Thermal Resistance - Infinite Heat Sink Thermal Resistance - No Heat Sink
Rthjc Rthja - 0.5 0.3 d /dTj
100 400
C/W C/W %/ C nm/ C
Temperature Coefficient - Optical Power dP/dTj Temperature Coefficient -W velength a
12090.11 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
High-Performance LED
1A255
860nm
Typical Fiber-Coupled Power
Core Diameter/Cladding Diameter Numerical Aperture
RELATIVE FIBER-COUPLED POWER
%
100
FIGURE 1
%
100
FIGURE 2
r z = opt. Øc = 62.5ʵm
RELATIVE FIBER-COUPLED POWER
50/125 m 0.20
62.5/125 m 0.275
100/140 m 0.29
200/230 m 0.37
80
80
z
60 W
Table 1
120 W
250 W
400 W
60
60
40
40
r
20
r = opt. Øc = 62.5ʵm z
20
0 0.5 1.0 1.5 2.0 2.5 3.0 mm
0 0 20 40 60 80 100 µm
z - AXIAL DISPLACEMENT OF FIBER
r - RADIAL DISPLACEMENT OF FIBER
%
100
FIGURE 3
MAX. ELECTRICAL POWER DISSIPATION
mW
300
FIGURE 4
SHORT WAVELENGTH LED
150¡C
RELATIVE FIBER-COUPLED POWER
80
50% DUTY CYCLE
200
60
DC
INFINITE HEAT SINK
NO HEAT SINK
40
100
20
HEAT SINKED
0 0 40 80 120 160 200 mA
0 0 50 100
FORWARD CURRENT
OPERATING TEMPERATURE
mA
200
FIGURE 5
FORWARD CURRENT
100
0 0 1 2 3V
FORWARD VOLTAGE
Clip for SC-2A
R 1.00 3.3000
5.6000 80,000 20.8200
0.5000
10,2500
10.3000
4.9500
0.5000 4.5000
5.0800
3.6450
Clip for Pigtail-3A
10.70 0.50
10.25
10.30
4.95
0.50 4.50 0.85 5.08
3.65
PRODUCT INFORMATION ST 2A Package
Emitter or Detector in ST ® Package
Mitel emitters and detectors can be p r o v i d e d in this low-profile ST ® package. The device is electrically isolated from the ST ® receptacle to facilitate electrical connection. And o p t i m u m fiber-coupled power or r e s p o n s i v i t y is ensured by active alignment against the fiber.
Absolute Maximum Ratings
PARAMETER SYMBOL LIMIT
Operating & Storage Temperature
ST-2A (Note 1)
Tstg , Top
- 40 to +85 C
Note 1: Temperature range can be extended to -55° to +125°C on request.
Thermal Characteristics
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
Thermal Resistance - Infinite Heat Sink
(Note 2)
Rthcc Rthca Rthca 80
40 200
C/W C/W C/W
Thermal Resistance - No Heat Sink
(Note 2)
Thermal Resistance - On PC Board
(Note 2)
Note 2: Add Rthjc for emitter or detector to estimate the total thermal resistance.
2-56 UNC - 2B max.0.5 3/8"-32 UNEF FIBER END
MARKING SIDE SLOT SIDE
0.006
Ø2.502 +0.01 0
12.7
9.5
Ø2.5 +0 -0.004
7.89
7.6 min.12
3.9 5.4 20.1 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
Others parts begin by 1a
1A-1 1A-2
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