Slotted Optical Switches

Slotted optical switches (also called opto switches) are devices that provide status indications (on or off) when light beams are interrupted in various types of instruments, systems and equipment.

The switches contain phototransistors, which are illuminated by infrared light from the LEDs. The illumination causes the phototransistors to conduct. If objects are then placed into the slots between the transistors and the LEDs, the interruption of the light beams causes the transistors to switch off.

Optical slotted switches may also house rotating discs with holes around the rims. These holes spin within the light paths of the switches to create on and off pulses and direct the speed of the spinning discs.

What are slotted optical switches used for?

Slotted optical switches are used in assembly line production systems, machine automation and machine safety indicators.

The switches are standard in computer peripherals like printers, where the projection images get interrupted when they reach the end of their travel.

Types of slotted optical switches

Slotted optical switches are classified by their output mechanisms (buffers, inverters, interrupters), mounting types (through hole, panel, surface) and the number of pins located on the switches.


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Omschrijving Prijs Output Device Number of Channels Typical Rise Time Typical Fall Time Mounting Type Package Type Number of Pins Dimensions Height Length Maximum Operating Temperature Minimum Operating Temperature Slot Width Width
RS-stocknr. 708-5553
FabrikantnummerTCST2103
FabrikantVishay
€ 1,47
Each (In a Pack of 5)
Aantal stuks
Phototransistor 1 10µs 8µs Through Hole - 4 24.5 x 6.3 x 11.1mm 11.1mm 24.5mm +85°C -55°C 3.1mm 6.3mm
RS-stocknr. 919-0174
FabrikantnummerTCST2103
FabrikantVishay
€ 0,782
Each (In a Tube of 85)
Aantal stuks
Phototransistor 1 10 μ 8µs Through Hole - 4 24.5 x 6.3 x 11.1mm 11.1mm 24.5mm 85°C -55°C 3.1mm 6.3mm
RS-stocknr. 818-7537
FabrikantnummerTCUT1350X01
FabrikantVishay
€ 1,029
Each (In a Pack of 10)
Aantal stuks
Phototransistor 2 9µs 16µs Surface Mount - 6 5.5 x 4 x 4mm 4mm 5.5mm +125°C -40°C 3mm 4mm
RS-stocknr. 146-1449
FabrikantnummerTCUT1350X01
FabrikantVishay
€ 0,51
Each (On a Reel of 2000)
Aantal stuks
Phototransistor 2 9µs 16µs Surface Mount - 6 5.5 x 4 x 4mm 4mm 5.5mm +125°C -40°C 3mm 4mm
RS-stocknr. 708-5538
FabrikantnummerTCST1103
FabrikantVishay
€ 1,234
Each (In a Pack of 5)
Aantal stuks
Phototransistor 1 10µs 8µs Through Hole - 4 11.9 x 6.3 x 11.1mm 11.1mm 11.9mm +85°C -55°C 3.1mm 6.3mm
RS-stocknr. 165-6371
FabrikantnummerTCPT1350X01
FabrikantVishay
€ 0,461
Each (On a Reel of 2000)
Aantal stuks
Transistor 1 9µs 16µs Surface Mount - 6 5.5 x 4 x 4mm 4mm 5.5mm +125°C -40°C 3mm 4mm
RS-stocknr. 145-2215
FabrikantnummerTCST1202
FabrikantVishay
€ 0,892
Each (In a Tube of 85)
Aantal stuks
Phototransistor 1 10µs 8µs Through Hole - 4 11.9 x 6.3 x 11.1mm 11.1mm 11.9mm +85°C -55°C 3.1mm 6.3mm
RS-stocknr. 919-0165
FabrikantnummerTCST1103
FabrikantVishay
€ 0,836
Each (In a Tube of 85)
Aantal stuks
Phototransistor 1 10 μ 8µs Through Hole - 4 11.9 x 6.3 x 11.1mm 11.1mm 11.9mm 85°C -55°C 3.1mm 6.3mm
RS-stocknr. 818-7512
FabrikantnummerTCPT1350X01
FabrikantVishay
€ 0,951
Each (In a Pack of 10)
Aantal stuks
Transistor 1 9µs 16µs Surface Mount - 6 5.5 x 4 x 4mm 4mm 5.5mm +125°C -40°C 3mm 4mm
RS-stocknr. 708-5547
FabrikantnummerTCST1202
FabrikantVishay
€ 1,294
Each (In a Pack of 5)
Aantal stuks
Phototransistor 1 10µs 8µs Through Hole - 4 11.9 x 6.3 x 11.1mm 11.1mm 11.9mm +85°C -55°C 3.1mm 6.3mm
RS-stocknr. 136-0653
FabrikantnummerTCPT1300X01
FabrikantVishay
€ 0,461
Each (On a Reel of 2000)
Aantal stuks
Transistor 2 20µs 30µs Surface Mount - 6 5.5 x 4 x 4mm 4mm 5.5mm +105°C -40°C 3mm 4mm
RS-stocknr. 710-3816
FabrikantnummerTCPT1300X01
FabrikantVishay
€ 1,362
Each (In a Pack of 5)
Aantal stuks
Phototransistor 1 20µs 30µs Surface Mount SMD 6 4 x 5 x 4mm 4mm 4mm +85°C -40°C 3mm 5mm
RS-stocknr. 708-5544
FabrikantnummerTCST1300
FabrikantVishay
€ 0,774
Each (In a Pack of 5)
Aantal stuks
Phototransistor 1 10µs 8µs Through Hole - 4 11.9 x 6.3 x 11.1mm 11.1mm 11.9mm +85°C -55°C 3.1mm 6.3mm
RS-stocknr. 145-1801
FabrikantnummerTCST1300
FabrikantVishay
€ 0,762
Each (In a Tube of 85)
Aantal stuks
Phototransistor 1 10µs 8µs Through Hole - 4 11.9 x 6.3 x 11.1mm 11.1mm 11.9mm +85°C -55°C 3.1mm 6.3mm
RS-stocknr. 710-3825
FabrikantnummerTCUT1300X01
FabrikantVishay
€ 1,52
Each (In a Pack of 5)
Aantal stuks
Phototransistor 2 20µs 30µs Surface Mount SMD 6 4 x 5.5 x 4mm 4mm 4mm +85°C -40°C 3mm 5.5mm
RS-stocknr. 161-2139
FabrikantnummerTCPT1600X01
FabrikantVishay
€ 1,656
Each (In a Pack of 5)
Aantal stuks
Transistor 1 9µs 16µs Surface Mount SMD 6 5.5 x 4 x 5.7mm 5.7mm 5.5mm 105°C -40°C - 4mm
RS-stocknr. 161-2144
FabrikantnummerTCUT1600X01
FabrikantVishay
€ 1,608
Each (In a Pack of 5)
Aantal stuks
Transistor 2 9µs 16µs Surface Mount SMD 6 5.5 x 4 x 5.7mm 5.7mm 5.5mm 105°C -40°C - 4mm
RS-stocknr. 180-7971
FabrikantnummerTCST1030
FabrikantVishay
€ 0,719
Each (In a Pack of 10)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 145-1800
FabrikantnummerTCST1230
FabrikantVishay
€ 0,392
Each (In a Tube of 60)
Aantal stuks
Phototransistor 1 15µs 10µs Through Hole - 4 8.3 x 4.7 x 8.15mm 8.15mm 8.3mm +85°C -25°C 2.8mm 4.7mm
RS-stocknr. 161-2046
FabrikantnummerTCPT1600X01
FabrikantVishay
€ 0,576
Each (On a Reel of 1300)
Aantal stuks
Transistor 1 9µs 16µs Surface Mount SMD 6 5.5 x 4 x 5.7mm 5.7mm 5.5mm 105°C -40°C - 4mm