NPN Silicon Phototransistor
OP550, OP552, OP555, OP560, OP565,
OP750, OP755 Series
• Wide receiving angle
• Four sensi vity ranges
• Side-looking package
• Ideal for space-limited applica ons
• Ideal for PCBoard moun ng
• Choice of clear, opaque or blue- nted package
OP550, OP552, OP555, OP750, OP755, OP770 and OP775 series consists of a NPN silicon phototransistor molded in an
epoxy package with a wide receiving angle that provides rela vely even recep on over a large area. The OP750, OP755,
OP770 and OP775 have addi onal circuitry to enhance the opera on of the device for stray light levels.
OP560 and OP565 series consists of a NPN silicon photodarlington transistor molded in an epoxy package with a wide
receiving angle that provides rela vely even recep on over a large area.
The side-looking package design allows easy PCBoard moun ng of slo ed op cal switches or op cal interrupt detectors.
The OP550, OP560, OP750 and OP770 devices have an external lens in a clear epoxy package.
The OP552 device has an integral lens in an opaque plas c package that is op cally transparent to infrared light but opaque
to visible wavelengths. This feature allows the device to be used under high ambient light condi ons – or anywhere
external light sources could interfere with the intended sensing applica on (visible light immunity).
The OP555, OP565, OP755 and OP775 devices have 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 op cal axis to the half-power point.
These devices are 100% producƟon tested using infrared light for close correlaƟon with OPTEK’s GaAs and GaAIAs emiƩers.
All of these sensors are mechanically and spectrally matched to the OP140, OP142, OP145, OP240 and OP245 series of
infrared emiƫng diodes.
Please refer to ApplicaƟon BulleƟns 208 and 210 for addiƟonal design informaƟon and reliability (degradaƟon) data.
For custom versions please contact your OPTEK representa ve.
• Applica ons requiring
wide receiving angle
• Applica ons requiring
PCBoard moun ng
• Space-limited applica ons
• Op cal switches
• Op cal interrupt detectors
• Op cal encoders
• Non-contact posi on
• Machine automa on
OP __ __ __ __
55 = Phototransistor
56 = Photodarlington
75 = Phototransistor with RBE
77 = Phototransistor with CCE
A = Highest sensitivity level
B = Sensitivity Level with Min. Max.
C = Middle Sensitivity Level
D = Lowest Sensitivity Level
0 = Extended Lens - Clear Package
2 = Extended Lens - Blue Tinted Package
5 = Integral Lens - Blue Tinted Package
Available Part Numbers
OP560A OP565A OP750A
OP560B OP565B OP750B
OP560C OP565C OP750C
TT Electronics reserves the right to make changes in product speciﬁcation without
notice or liability. All information is subject to TT Electronics’ own data and is
considered accurate at time of going to print.
© TT electronics plc
OPTEK Technology, Inc.
1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200
www.optekinc.com | www.ttelectronics.com
Issue A 08/2016 Page 1