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High Reliability Sensors

Optek / TT Electronics High Reliability Sensors are engineered to deliver consistent, non-contact sensing and signal isolation in demanding environments. Built on proven optical and magnetic technologies, these sensor solutions deliver reliable performance where contamination, misalignment, and electrical noise can impact system operation. Designed for flexibility and long service life, this portfolio of Optek / TT Electronics sensors supports industrial, medical, aerospace, and control applications requiring stable, repeatable detection.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS
Transistor Output Optocouplers Optocoupled Isolator 4N23 Optek / TT Electronics 1: $35.80 215In Stock	Mfr. Part # 4N23 Mouser Part # 828-4N23	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	215In Stock	$35.80 $34.63 $34.62 View Quote	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupled Isolator 4N24A Optek / TT Electronics 1: $41.69 150In Stock	Mfr. Part # 4N24A Mouser Part # 828-4N24A	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	150In Stock	$41.69 $41.67 $41.65 View Quote	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupled Isolator 4N49 Optek / TT Electronics 1: $47.00 154In Stock	Mfr. Part # 4N49 Mouser Part # 828-4N49	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	154In Stock	$47.00 $45.60 $41.27 Quote Quote	Min.: 1 Mult.: 1
Transistor Output Optocouplers OPTIC CPLD ISOLATOR TO-78 JANTX4N24A Optek / TT Electronics 1: $39.44 168In Stock	Mfr. Part # JANTX4N24A Mouser Part # 828-JANTX4N24A	Optek / TT Electronics	Transistor Output Optocouplers OPTIC CPLD ISOLATOR TO-78 Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	168In Stock	$39.44 $39.43 $38.65 View Quote	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupled Isolator 4N49U Optek / TT Electronics 1: $36.85 1,642In Stock	Mfr. Part # 4N49U Mouser Part # 828-4N49U	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	1,642In Stock	$36.85	Min.: 1 Mult.: 1
Transistor Output Optocouplers Optocoupled Isolator 3C92C Optek / TT Electronics 1: $20.79 123In Stock	Mfr. Part # 3C92C Mouser Part # 828-3C92C	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	123In Stock	$20.79 $20.45	Min.: 1 Mult.: 1
Transistor Output Optocouplers Isolator 3N244 Optek / TT Electronics 1: $21.08 3In Stock	Mfr. Part # 3N244 Mouser Part # 828-3N244	Optek / TT Electronics	Transistor Output Optocouplers Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	3In Stock	$21.08	Min.: 1 Mult.: 1
Transistor Output Optocouplers TO-78 OCI JAN4N49 Optek / TT Electronics 1: $46.67 2In Stock 100Expected 5/10/2027	Mfr. Part # JAN4N49 Mouser Part # 828-JAN4N49	Optek / TT Electronics	Transistor Output Optocouplers TO-78 OCI Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	2In Stock 100Expected 5/10/2027	$46.67 $45.37	Min.: 1 Mult.: 1
Transistor Output Optocouplers TO-78 OCI Collector Isolated JANTX4N49A Optek / TT Electronics 1: $45.79 41In Stock 159Expected 10/27/2026	Mfr. Part # JANTX4N49A Mouser Part # 828-JANTX4N49A	Optek / TT Electronics	Transistor Output Optocouplers TO-78 OCI Collector Isolated Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	41In Stock 159Expected 10/27/2026	$45.79	Min.: 1 Mult.: 1
Transistor Output Optocouplers 4N24A, 4 PIN HCC PKG HCC242TX Optek / TT Electronics 240: $34.77 Non-Stocked	Mfr. Part # HCC242TX Mouser Part # 828-HCC242TX	Optek / TT Electronics	Transistor Output Optocouplers 4N24A, 4 PIN HCC PKG Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	Non-Stocked	$34.77 View Quote	Min.: 240 Mult.: 240
Infrared Emitters 890NM 100mW 100mA OP224TXV Optek / TT Electronics 100: $33.27 Non-Stocked Lead-Time 34 Weeks	Mfr. Part # OP224TXV Mouser Part # 828-OP224TXV	Optek / TT Electronics	Infrared Emitters 890NM 100mW 100mA Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	Non-Stocked Lead-Time 34 Weeks	$33.27	Min.: 100 Mult.: 100
Transistor Output Optocouplers Isolator 3N243 Optek / TT Electronics 100: $22.60 Non-Stocked	Mfr. Part # 3N243 Mouser Part # 828-3N243	Optek / TT Electronics	Transistor Output Optocouplers Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	Non-Stocked	$22.60 $21.31 $21.21 View Quote	Min.: 100 Mult.: 100	No
Transistor Output Optocouplers Optocoupled Isolator 4N24U Optek / TT Electronics 250: $34.45 Non-Stocked Lead-Time 28 Weeks	Mfr. Part # 4N24U Mouser Part # 828-4N24U	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	Non-Stocked Lead-Time 28 Weeks	$34.45	Min.: 250 Mult.: 250
Transistor Output Optocouplers TO-78 OCI Collector Isolated JANTX4N22A Optek / TT Electronics 100: $48.59 Non-Stocked Lead-Time 34 Weeks	Mfr. Part # JANTX4N22A Mouser Part # 828-JANTX4N22A	Optek / TT Electronics	Transistor Output Optocouplers TO-78 OCI Collector Isolated Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	Non-Stocked Lead-Time 34 Weeks	$48.59	Min.: 100 Mult.: 100

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