NPN Silicon Phototransistor
OP505, OP505W, OP506, OP506W
OP535
Obsolete (OP505D, OP506C, OP705A)
OP505, OP535
OP506
Features:
• T-1 package style
OP505W
OP506W
• Variety of sensiꢁvity ranges
• Choice of narrow or wide receiving angle
• Small package size ideal for space-limited applicaꢁons
• 0.050” [1.27 mm] or 0.100” [2.54 mm] Lead spacing
Description:
Each OP505 and OP506 devices consist of an NPN silicon phototransistor, the OP535 device consist of an NPN silicon
photodarlington transistor. All of the devices are molded in a blue-ꢁnted T-1 (3 mm) epoxy package.
The OP505 and OP535 devices have a narrow receiving angle that provides excellent on-axis coupling while the OP506
device has a wider receiving angle for those applicaꢁons where a narrow receiving angle of the OP505 and OP535 is not
required. The OP505W and OP506W device have the widest receiving angle and provides relaꢁvely even recepꢁon over a
large area.
Devices are 100% producꢁon tested, using infrared light for close correlaꢁon with Optek’s GaAs and GaAIAs emiꢀers.
Please refer to Applicaꢀon Bulleꢀns 208 and 210 for addiꢀonal design informaꢀon and reliability (degradaꢀon) data.
Please see your OPTEK representaꢁve for custom versions of these devices.
Applications:
• Space-limited applicaꢁons
Ordering Informaꢀon
• Interrupꢁve applicaꢁons to detect media which is semi-
transparent to infrared light
Part
Number
Viewing
Angle
Lead
Spacing
Lead
Length
Sensor
OP505A
OP505B
OP505C
20°
0.050”
[1.27 mm]
OP505D
(Obsolete)
OP505W
OP506A
OP506B
Transistor
90°
20°
90°
20°
0.50"
[12.7 mm]
0.100”
[2.54 mm]
OP506C
(Obsolete)
OP506W
OP535A
OP535B
Darlington
0.050”
[1.27 mm]
OP705A
RBE
(Obsolete)
Transistor
RoHS
General Note
TT Electronics | OPTEK Technology
2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200
TT Electronics reserves the right to make changes in product specificaꢁon without
noꢁce or liability. All informaꢁon is subject to TT Electronics’ own data and is
considered accurate at ꢁme of going to print.
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Rev C 05/2022 Page 1
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