Optical Switches, Transmissive, Phototransistor Output

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OPB380/390-Z Series Photointerrupters

Optek / TT Electronics OPB380/390-Z Series Photointerrupters integrate an infrared LED emitter and a phototransistor (or photodiode) detector in a single molded package. These compact transmissive photointerrupters offer the flexibility of a custom sensor from a standard product line, allowing users to specify aperture widths, mounting tab locations, and electrical interface options, including PCB leads or 26AWG wires. The slotted optical switch body is constructed from opaque plastic to minimize sensitivity to external light sources, providing stable, non-contact detection of motion and position. Optek / TT Electronics OPB380/390-Z Photointerrupters operate over an extended temperature range from -40°C to +85°C, suitable for industrial and automation environments. With a standard 0.125" (3.18mm) slot width and 0.050" or 0.010" apertures, these switches offer high-resolution sensing for diverse mechanical configurations.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) Filter the results in the table by unit price based on your quantity.	Qty.	Sensing Distance	Sensing Method	Slot Width	Aperture Width	Collector- Emitter Voltage VCEO Max	Maximum Collector Current	If - Forward Current	Mounting Style	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390T55Z Optek / TT Electronics 1: HK$40.69 690In Stock	Mfr. Part No. OPB390T55Z Mouser Part No 828-OPB390T55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	690In Stock	HK$40.69 HK$38.47 HK$38.39 HK$38.14 HK$36.17	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	1.27 mm	30 V	14 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390P11Z Optek / TT Electronics 1: HK$42.66 1,202In Stock	Mfr. Part No. OPB390P11Z Mouser Part No 828-OPB390P11Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	1,202In Stock	HK$42.66 HK$37.89 HK$37.65 HK$37.48 View HK$37.40 HK$36.83	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	5 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390P55Z Optek / TT Electronics 1: HK$46.61 75In Stock	Mfr. Part No. OPB390P55Z Mouser Part No 828-OPB390P55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	75In Stock	HK$46.61 HK$42.09 HK$41.84 HK$41.35 View HK$41.18 Quote	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	1.27 mm	30 V	14 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380L51Z Optek / TT Electronics 1: HK$42.09 3,313In Stock 56On Order	Mfr. Part No. OPB380L51Z Mouser Part No 828-OPB380L51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	3,313In Stock 56On Order	HK$42.09 HK$39.78	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	10 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380T51Z Optek / TT Electronics 1: HK$41.76 3,911In Stock	Mfr. Part No. OPB380T51Z Mouser Part No 828-OPB380T51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	3,911In Stock	HK$41.76 HK$39.87 HK$39.78	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	10 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380T11Z Optek / TT Electronics 1: HK$42.50 317In Stock	Mfr. Part No. OPB380T11Z Mouser Part No 828-OPB380T11Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	317In Stock	HK$42.50 HK$41.92 HK$40.36	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	5 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390L51Z Optek / TT Electronics 1: HK$41.18 541In Stock	Mfr. Part No. OPB390L51Z Mouser Part No 828-OPB390L51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	541In Stock	HK$41.18 HK$39.46	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	10 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390P51Z Optek / TT Electronics 1: HK$42.09 292In Stock	Mfr. Part No. OPB390P51Z Mouser Part No 828-OPB390P51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	292In Stock	HK$42.09 HK$39.46	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	10 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380P51Z Optek / TT Electronics 1: HK$41.92 93In Stock	Mfr. Part No. OPB380P51Z Mouser Part No 828-OPB380P51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	93In Stock	HK$41.92 HK$39.78	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	10 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380P55Z Optek / TT Electronics 1: HK$40.85 140In Stock	Mfr. Part No. OPB380P55Z Mouser Part No 828-OPB380P55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	140In Stock	HK$40.85 HK$39.78	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	1.27 mm	30 V	14 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380T55Z Optek / TT Electronics 1: HK$38.55 285In Stock	Mfr. Part No. OPB380T55Z Mouser Part No 828-OPB380T55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	285In Stock	HK$38.55 HK$35.26 HK$34.28	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	1.27 mm	30 V	14 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390L55Z Optek / TT Electronics 1: HK$41.92 98In Stock	Mfr. Part No. OPB390L55Z Mouser Part No 828-OPB390L55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	98In Stock	HK$41.92 HK$39.78	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	1.27 mm	30 V	14 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390T51Z Optek / TT Electronics 1: HK$42.58 550On Order	Mfr. Part No. OPB390T51Z Mouser Part No 828-OPB390T51Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	550On Order On Order Ship Dates Mfr. No: OPB390T51Z Stock: 0 On Order: 150 Expected 4/1/2027 400 Expected 18/2/2027 Factory Lead Time: 16 Weeks	HK$42.58 HK$39.78	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	10 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB380L55Z Optek / TT Electronics 1: HK$48.42 Non-Stocked	Mfr. Part No. OPB380L55Z Mouser Part No 828-OPB380L55Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	Non-Stocked	HK$48.42 HK$40.28	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	1.27 mm	30 V	14 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output SLOTTED OPTIC SWITCH OPB380N11Z Optek / TT Electronics 1: HK$56.80 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. OPB380N11Z Mouser Part No 828-OPB380N11Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output SLOTTED OPTIC SWITCH Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	Non-Stocked Lead-Time 16 Weeks	HK$56.80 HK$39.29	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	5 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390L11Z Optek / TT Electronics 1: HK$42.66 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. OPB390L11Z Mouser Part No 828-OPB390L11Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	Non-Stocked Lead-Time 16 Weeks	HK$42.66 HK$40.61	Min.: 1 Mult.: 1	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	5 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk
Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch OPB390T11Z Optek / TT Electronics 200: HK$43.48 Non-Stocked	Mfr. Part No. OPB390T11Z Mouser Part No 828-OPB390T11Z	Optek / TT Electronics	Optical Switches, Transmissive, Phototransistor Output Slotted Opt Switch Learn More about Optek / TT Electronics optek tt opb380 90z switches	Datasheet	Non-Stocked	HK$43.48 HK$42.74 HK$42.00	Min.: 200 Mult.: 200	3.18 mm	Transmissive, Slotted	3.18 mm	0.25 mm	30 V	5 mA	20 mA	Wire Leads	- 40 C	+ 85 C	OPB380/90-Z	Bulk

OPB380/390-Z Series Photointerrupters

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OPB380/390-Z Series Photointerrupters

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