NPN Silicon Phototransistor
OP550, OP552, OP555, OP560, OP750 Series
OP552
Features:
OP550
OP560
OP750
OP555
• Wide receiving angle
• Four sensiꢁvity ranges
• Side-looking package
• Ideal for space-limited applicaꢁons
• Ideal for PCBoard mounꢁng
• Choice of clear, opaque or blue-ꢁnted package
Description:
OP550, OP552, OP555 and OP750 series consists of a NPN silicon phototransistor molded in an epoxy package with a wide
receiving angle that provides relaꢁvely even recepꢁon over a large area. The OP750 series have addiꢁonal circuitry to
enhance the operaꢁon of the device for stray light levels.
The OP560 series consists of a NPN silicon photodarlington transistor molded in an epoxy package with a wide receiving
angle that provides relaꢁvely even recepꢁon over a large area.
The side-looking package design allows easy PCBoard mounꢁng of sloꢀed opꢁcal switches or opꢁcal interrupt detectors.
The OP550, OP560 and OP750 devices have an external lens in a clear epoxy package.
The OP552 device has an integral lens in an opaque plasꢁc package that is opꢁcally transparent to infrared light but opaque
to visible wavelengths. This feature allows the device to be used under high ambient light condiꢁons – or anywhere external
light sources could interfere with the intended sensing applicaꢁon (visible light immunity).
The OP555 device has an internal lens in a blue-ꢁnted package. The lensing effect of this package allows an acceptance half-
angle of 28° when measured from the opꢁcal axis to the half-power point.
These devices are 100% producꢀon tested using infrared light for close correlaꢀon with OPTEK’s GaAs and GaAIAs emiꢁers.
All of these sensors are mechanically and spectrally matched to the OP140, OP142, OP145, OP240 and OP245 series of
infrared emiꢂng diodes.
Please refer to Applicaꢀon Bulleꢀns 208 and 210 for addiꢀonal design informaꢀon and reliability (degradaꢀon) data.
For custom versions please contact your OPTEK representaꢁve.
OP __ __ __ __
Applications:
• Applicaꢁons requiring wide
55 = Phototransistor
56 = Photodarlington
75 = Phototransistor with RBE
A = Highest sensitivity level
B = Sensitivity Level with Min. Max.
C = Middle Sensitivity Level
receiving angle
• Applicaꢁons requiring
PCBoard mounꢁng
• Space-limited applicaꢁons
• Opꢁcal switches
• Opꢁcal interrupt detectors
• Opꢁcal encoders
• Non-contact posiꢁon
sensing
D = Lowest Sensitivity Level
77 = Phototransistor with CCE
0 = Extended Lens - Clear Package
2 = Extended Lens - Blue Tinted Package
5 = Integral Lens - Blue Tinted Package
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OP550A OP552A OP555A OP560A OP565A OP750A OP755A OP770A OP775A
• Machine automaꢁon
OP550A OP552D OP560A OP750A
OP550B OP552B OP555B OP560B OP565B OP750B OP755B OP770B OP775B
OP550B OP555A OP560C OP750B
OP550C OP552C OP555C OP560C OP565C OP750C OP755C OP770C OP775C
OP565 te D (Obs le
OP550DOP55 552D OP555D OP555B 75(O0Dbsole 755D
OP550D (Obsolete) OP555C (Obsolete) OP770A (Obsolete)
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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.
www.ꢀelectronics.com | sensors@ꢀelectronics.com
Rev C 05/2022 Page 1
© TT electronics plc
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