Silicon Phototransistor
SD2440
DESCRIPTION
FEATURES
Miniature, hermetically sealed, pill style, metal
can package
•
48¡ acceptance angle
•
Wide operating temperature range
(-55¡C to +125¡C)
•
Ideal for direct mounting to printed circuit boards
•
Wide sensitivity ranges
•
Mechanically and spectrally matched to SE2460
and SE2470 infrared emitting diodes
•
The SD2440 is an NPN silicon phototransistor mounted
in a hermetically sealed glass lensed metal can
package. This package directly mounts in a double
sided PC board.
DIM_013.cdr
INFRA--1.TIF
OUTLINE DIMENSIONS
in inches (mm)
3 plc decimals
±0.005(0.12)
Tolerance
2 plc decimals
±0.020(0.51)
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
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Silicon Phototransistor
SD2440
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
125 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
1.19 mW/¡C.
SCHEMATIC
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
105
Silicon Phototransistor
SD2440
SWITCHING TIME TEST CIRCUIT
cir_015.cdr
SWITCHING WAVEFORM
cir_004.cdr
Responsivity vs
Angular Displacement
gra_037.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
-60 -45 -30 -15 0 +15 +30 +45 +60
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
106
Silicon Phototransistor
SD2440
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 SE2460
gra_015.ds4
Lens-to-lens separation - inches
Normalized light
current
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2
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
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