Silicon Phototransistor
SD1440
DESCRIPTION
FEATURES
Compact, metal can coaxial package
•
24¡ (nominal) acceptance angle
•
Wide sensitivity ranges
•
Wide operating temperature range
(-55¡C to +125¡C)
•
Mechanically and spectrally matched to SE1450
and SE1470 infrared emitting diodes
•
The SD1440 is an NPN silicon phototransistor mounted
in a glass lensed metal can coaxial package. The
package may have a tab or second lead welded to the
can as an optional feature (SD1440-XXXL). Both leads
are flexible and may be formed to fit various mounting
configurations.
INFRA-63.TIF
OUTLINE DIMENSIONS
in inches (mm)
Tolerance
.106(2.69)
DIA
.076(1.93)
COLLECTOR
EMITTER
MIN
.095(2.41) DIA
.020(0.51) DIA
.091(2.26)
.079(2.01)
.062(1.57) DIA
1.000(25.40)
.122(3.10)
.010(0.25)
~
~
DIM_12a.ds4
SD1440-XXX
.106(2.69)
DIA
.076(1.93)
COLLECTOR
EMITTER
.095(2.41) DIA
.020
(0.51) DIA
.091(2.26)
.079(2.01)
.062(1.57) DIA
.122(3.10)
.010(0.25)
~
~
.020
(0.51) DIA
~
~
~
~
TYPICAL MIN
1.000(25.40)
DIM_12b.ds4
SD1440-XXXL
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
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Silicon Phototransistor
SD1440
ELECTRICAL CHARACTERISTICS
UNITS
TEST CONDITIONS
MIN
PARAMETER
SYMBOL
TYP
MAX
ABSOLUTE MAXIMUM RATINGS
(25¡C Free-Air Temperature unless otherwise noted)
Collector-Emitter Voltage
30 V
Emitter-Collector Voltage
5 V
Power Dissipation
75 mW [À]
Operating Temperature Range
-55¡C to 125¡C
Storage Temperature Range
-65¡C to 150¡C
Soldering Temperature (10 sec)
260¡C
Notes
1. Derate linearly from 25¡C free-air temperature at the rate of
0.71 mW/¡C.
SCHEMATIC
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
101
Silicon Phototransistor
SD1440
SWITCHING TIME TEST CIRCUIT
cir_015.cdr
SWITCHING WAVEFORM
cir_004.cdr
Responsivity vs
Angular Displacement
gra_051.ds4
Angular displacement - degrees
Relative response
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
-40 -30 -20 -10 0 +10 +20 +30 +40
Fig. 1 Collector Current vs
Ambient Temperature
gra_039.ds4
Ambient temperature - °C
Normalized collector
current
0.0
0.4
0.8
1.2
1.6
2.0
0 10 20 30 40 50 60 70 80
Fig. 2
Dark Current vs
Temperature
gra_303.cdr
Fig. 3 Non-Saturated Switching Time vs
Load Resistance
gra_041.ds4
Load resistance - Ohms
Response time - µs
1
10
100
10 100 1000 10000
Fig. 4
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
102
Silicon Phototransistor
SD1440
Spectral Responsivity
gra_036.ds4
Wavelength - nm
Relative response
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
400 600 800 1000 1200
Fig. 5 Coupling Characteristics
with SE1450
gra_006.ds4
Lens-to-lens separation - inches
Normalized light
current
0.0
0.2
0.4
0.6
0.8
1.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Fig. 6
All Performance Curves Show Typical Values
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
103