Waitrony
Photo Transistor
2-03-02-12
Module No.: WPT-431A
1. General Description:
Dimensions
The WPT-431A is a high
sensitivity NPN silicon phototransistor
mounted in a clear epoxy side looking
package. It is compact, low profile and
easy to mount.
2. Features
Compact
Wide beam angle (
30)
Side looking package
Capable of pulse operation
Low profile
Low cost
3. Applications
Optical counters
Optical detectors
Flywheel counters
4. Absolute Maximum Ratings
(
Ta=25
C)
Parameter
Symbol
Ratings
Unit
Collector-Emitter Voltage
V
CEO
30
V
Emitter-Collector Voltage
V
ECO
6
V
Collector Current
I
C
40
mA
Collector Power Dissipation
P
D
100
mW
Operating Temperature
T
opr
-20 ~ +100
C
Storage Temperature
T
stg
-30 ~ +100
C
Soldering Temperature *1
T
sol
260
C
*1 At the position of 2mm from the bottom of the package within 5 seconds.
5. Electro-optical Characteristics
(Ta=25
C)
Parameter
Symbol
Testing Conditions
Min. Typ. Max. Unit
Collector Light Current
Ic
V
CE
=5V, Ev=1000Lux,
(Ee=5mW/cm
2
) *2
0.5 4.0
20 mA
Collector Dark Current
I
CEO
V
CE
=10V, Ee=0 *2
1
100 nA
Collector-Emitter
Saturation Voltage
V
CE(sat)
Ic=0.5mA, Ev=2000Lux
Ee=10mW/cm
2
*2
0.2 0.4
V
Peak Sensitivity Wavelength
p
880
nm
Spectral Sensitivity
500 ~ 1050
nm
Angular Response
30
deg.
Rising Response Time
t
r
3.2
s
Falling Response Time
t
f
Vcc=10V, I
C
=5mA,
R
L
=100
4.8
s
*2 Ev, Ee are illuminance irradiant by CIE standard light source A (tungsten lamp) at 2856K
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