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PHOTOTRANSISTOR & PHOTODARLINGTON INTRODUCTION
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A Phototransistor is a Photodiode with a transistor connected to its rear stage. A Photodiode with two transistors connected to it is called a Photodarlington. Compared to Photodiodes, the output is higher, but linearity and response speed are lost, so these are mainly used in switching applications, such as in Photointerrupters and Photoreflectors. These provide one order of magnitude greater output than Phototransistors.
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| Model Name |
C-E Voltage VCEO(V) |
Collector Power Dissipation (㎽) |
Dark Current(㎂) at VR=10V |
Light Current (㎃) |
Spectral Sensitivity(㎚) |
Peak Wavelength(㎚) |
Half Angle( ˚) |
Operating Temp.(℃) |
ADT-1KA
/1KB |
40 |
150 |
0.2 max. |
2.0 typ. |
500~1,050 |
880 |
±50 |
-30~+100 |
ADT-1KL3A
/1KL3B |
40 |
150 |
0.2 max. |
5.0 typ. |
500~1,050 |
880 |
±6 |
-30~+100 |
ADT-1MLA
/1MLB |
40 |
100 |
0.2 max. |
2.0 typ. |
500~1,050 |
880 |
±70 |
-25~+90 |
ADT-1MLAR2
/1MLABR2 |
40 |
100 |
0.2 max. |
1.2 typ. |
720~1,050 |
940 |
±70 |
-25~+90 |
| APD-1KLB |
30 |
150 |
1.0 max. |
5.0 min. |
480~1,000 |
800 |
±15 |
-30~+100 |
APD-1MLA
/1MLB |
25 |
100 |
1.0 max. |
5.0 min. |
480~1,000 |
800 |
±70 |
-25~+90 |
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