September 2012
QSD122, QSD123, QSD124
Plastic Silicon Infrared Phototransistor
Features
■ NPN Silicon Phototransistor
■ Package Type: T-1 3/4
■ Matched Emitter: QED12X/QED22X/QED23X
■ Narrow Reception Angle: 24°C
■ Daylight Filter
■ Package Material and Color: Black Epoxy
■ High Sensitivity
Description
The QSD122/123/124 is a phototransistor encapsulated
in an infrared transparent, black T-1 3/4 package.
Package Dimensions
0.195 (4.95)
REFERENCE
SURFACE
0.305 (7.75)
0.800 (20.3)
MIN
EMITTER
0.500 (1.25)
0.040 (1.02)
NOM
COLLECTOR
0.100 (2.54) NOM
Schematic
COLLECTOR
0.020 (0.51)
SQ. (2X)
0.240 (6.10)
0.215 (5.45)
Notes:
1. Dimensions for all drawings are in inches (mm).
2. Tolerance of ±0.010 (0.25) on all non-nominal dimensions unless otherwise specified.
EMITTER
©2012 Fairchild Semiconductor Corporation
QSD122, QSD123, QSD124 Rev. 1.0.0
www.fairchildsemi.com