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MF446
High-Performance PIN
DS5461
ISSUE 1
May 2001
Ordering Information
MF446 MF446 MF446 MF446 MF446 MF446 ST SMA FC SC PT 13514.11 TO-46 Package 15062.11 ST Housing 13743.11 SMA Housing 13741.11 FC Housing 15268.11 SC Housing 15050.11 Pig-Tail including 1m of 62.5/125 m multi-mode fibre
Note: The rated Responsivity applies to all options.
Description
The very high speed and low capacitance of this GaAs PIN Photodiode makes it ideal for datacom and general purpose applications. Its double-lens optical system collects power from fibers with up to 100mm without loss in responsivity and a reverse voltage of only 3.3 Volts makes interfacing to a preamplifier easy.
TO-46 Package with Lens
Optical and Electrical Characteristics - Case Temperature -40 to +85C
Parameter Responsivity (Fig. 1 & 2) (Table 1) Bandwidth Symbol R Min. 0.35 Typ. 0.45 Max. Unit A/W Test Condition VR=3.3V, 5V =850nm VR=3.3V, 5V RL=50 VR=3.3V, 5V Fiber: 62.5/ 125m Graded Index NA=0.275
c
1.5
GHz
Capacitance (Fig. 4) Dark Current
C Id
0.8 0.4
pF nA
VR=3.3V, 5V, f=1MHz
O4.7 O1.5 0.6
CATHODE
3.7
ANODE
CASE
14
2.5 5.4 BOTTOM VIEW
0.4
The diode chip is isolated from the case
All dimensions in mm
1
MF446
Absolute Maximum Ratings
Parameter Storage Temperature Operating Temperature Reverse Voltage Soldering Temperature (2mm from the case for 10 sec) Symbol Tstg Top VR Tsld Limit -55 to +125C -40 to +85C 30V 260C
Thermal Characteristics
Parameter Temp. Coefficient - Dark Current Symbol d1/dTj Min. Typ. 5 Max. Unit %/C
Typical Responsivity
Core Diameter/Cladding Diameter Numberical Aperture 10/125 m 0.11 0.45 A/W
%
100
50/125 m 0.20 0.45 A/W
%
100
62.5/125 m 0.275 0.45 A/W
80
80
60
RELATIVE RESPONSIVITY
RELATIVE RESPONSIVITY
60
40
40
r
r
20
r = opt. Oc = 62.5m z
20
z = opt. Oc = 62.5m z
0 0.5 1.0 1.5 2.0 2.5 3.0 mm
0 0 20 40 60 80 120 m
z - AXIAL DISPLACEMENT OF FIBER
r - RADIAL DISPLACEMENT OF FIBER
Figure 1
%
100
Figure 2
pF
2.0
RELATIVE RESPONSIVITY
CAPACITANCE
50
1.0
0 600 700 80 0 900 1000 nm
0 0 5 10 V
WAVELENGTH
REVERSE VOLTAGE
Figure 3
2
Figure 4
BOTTOM VIEW ( 10 : 1 )
3,8 2,54 0,6
n1,17 + 0,05 (3x) n0,45 + 0,03 (3x) -
SIDE VIEW
13,460,76
0
0,04
45
R2,7
R0,2 max (4x)
3, 6
1, 0 2 0, 3
Lens n1.50.05 R0,4 max
NOTES:1. All dimensions in mm. 2. General tol. ISO-2768-mK. 3. Coating: Case: Ni 1,5-2,5 m. Header: Ni 2-3 m / Au min 1,32 m.
n4,7
0,3 max glass overmould (2x)
(c) Zarlink Semiconductor 2002. All rights reserved.
Package code Previous package codes
Drawing type
ISSUE ACN DATE
1
JS004 076R1 A
TB
Package drawing, TO-46 with lens Title
22-MAR-03
APPRD. TD/BE
JS004076
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