Transistor Output Optocouplers

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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 (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Mounting Style	Package/Case	Number of Channels	Isolation Voltage	Output Type	Current Transfer Ratio	If - Forward Current	Vf - Forward Voltage	Maximum Collector Emitter Voltage	Maximum Collector Current	Maximum Collector Emitter Saturation Voltage	Rise Time	Fall Time	Vr - Reverse Voltage	Pd - Power Dissipation	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Transistor Output Optocouplers Optocoupled Isolator 4N49 Optek / TT Electronics 1: 40,42 € 154In Stock	Mfr. Part No. 4N49 Mouser Part No 828-4N49	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	154In Stock	40,42 € 39,22 € 35,49 € Quote Quote	Min.: 1 Mult.: 1		Through Hole	TO-78-6	1 Channel	1000 Vrms	NPN Phototransistor	200 %	1 mA	1.5 V	40 V	50 mA	300 mV	25 us	25 us	2 V	300 mW	- 55 C	+ 125 C		Bulk
Transistor Output Optocouplers Optocoupled Isolator 4N24A Optek / TT Electronics 1: 35,85 € 142In Stock	Mfr. Part No. 4N24A Mouser Part No 828-4N24A	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	142In Stock	35,85 € 35,84 € 35,82 € View Quote	Min.: 1 Mult.: 1		Through Hole		1 Channel	1000 Vrms	NPN Phototransistor	20 %	10 mA	1.3 V	35 V	50 mA	300 mV	20 us	20 us	2 V	300 mW	- 65 C	+ 125 C		Bulk
Transistor Output Optocouplers Optocoupled Isolator 4N23 Optek / TT Electronics 1: 30,79 € 205In Stock	Mfr. Part No. 4N23 Mouser Part No 828-4N23	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	205In Stock	30,79 € 29,83 € 29,82 € View Quote	Min.: 1 Mult.: 1		Through Hole	TO-78-6	1 Channel	1000 Vrms	NPN Phototransistor	20 %	10 mA	1.3 V	35 V	50 mA	300 mV	15 us	15 us	2 V	300 mW	- 65 C	+ 125 C		Bulk
Transistor Output Optocouplers OPTIC CPLD ISOLATOR TO-78 JANTX4N24A Optek / TT Electronics 1: 35,48 € 168In Stock	Mfr. Part No. JANTX4N24A Mouser Part No 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	35,48 €	Min.: 1 Mult.: 1		Through Hole	TO-78-6	1 Channel	1000 Vrms	NPN Phototransistor	40 %	10 mA	1.5 V	40 V	50 mA	300 mV	20 us	20 us	2 V	300 mW	- 55 C	+ 125 C
Transistor Output Optocouplers TO-78 OCI Collector Isolated JANTX4N49A Optek / TT Electronics 1: 37,45 € 200In Stock	Mfr. Part No. JANTX4N49A Mouser Part No 828-JANTX4N49A	Optek / TT Electronics	Transistor Output Optocouplers TO-78 OCI Collector Isolated Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	200In Stock	37,45 €	Min.: 1 Mult.: 1		Through Hole	TO-78-6	1 Channel	1000 Vrms	NPN Phototransistor	200 %	1 mA	1.5 V	40 V	50 mA	300 mV	20 us	20 us	2 V	300 mW	- 55 C	+ 125 C
Transistor Output Optocouplers Optocoupled Isolator 4N49U Optek / TT Electronics 1: 31,69 € 1 388In Stock	Mfr. Part No. 4N49U Mouser Part No 828-4N49U	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	1 388In Stock	31,69 €	Min.: 1 Mult.: 1		SMD/SMT	LCC-6	1 Channel	1000 Vrms	NPN Phototransistor	200 %	1 mA	1.5 V	40 V	10 mA	300 mV	20 us	20 us	2 V	300 mW	- 55 C	+ 125 C		Waffle
Transistor Output Optocouplers Optocoupled Isolator 3C92C Optek / TT Electronics 1: 17,88 € 34In Stock 100Expected 10/06/2027	Mfr. Part No. 3C92C Mouser Part No 828-3C92C	Optek / TT Electronics	Transistor Output Optocouplers Optocoupled Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	34In Stock 100Expected 10/06/2027	17,88 € 17,59 €	Min.: 1 Mult.: 1		Through Hole	TO-72-4	1 Channel	1000 Vrms	NPN Phototransistor	0.3 %	10 mA	1.5 V	30 V	30 mA	400 mV			7 V	200 mW	- 55 C	+ 125 C		Bulk
Transistor Output Optocouplers TO-78 OCI JAN4N49 Optek / TT Electronics 1: 40,17 € 2In Stock 100Expected 10/05/2027	Mfr. Part No. JAN4N49 Mouser Part No 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 10/05/2027	40,17 € 40,13 € 39,02 €	Min.: 1 Mult.: 1		Through Hole	TO-78-6	1 Channel	1000 Vrms	NPN Phototransistor	200 %	1 mA	1.5 V	40 V	50 mA	300 mV	20 us	20 us	2 V	300 mW	- 55 C	+ 125 C
Transistor Output Optocouplers 4N24A, 4 PIN HCC PKG HCC242TX Optek / TT Electronics 240: 29,90 € Non-Stocked	Mfr. Part No. HCC242TX Mouser Part No 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	29,90 € View Quote	Min.: 240 Mult.: 240				1 Channel	1000 Vrms	NPN Phototransistor		40 mA	1.5 V	30 V	50 mA	300 mV	20 us	20 us	2 V	300 mW	- 55 C	+ 125 C	HCC24	Waffle
Transistor Output Optocouplers Isolator 3N243 Optek / TT Electronics 1: 19,44 € Non-Stocked	Mfr. Part No. 3N243 Mouser Part No 828-3N243	Optek / TT Electronics	Transistor Output Optocouplers Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	Non-Stocked	19,44 € 18,33 € 18,24 € View Quote	Min.: 1 Mult.: 1	No	Through Hole	TO-72-4	1 Channel	1000 Vrms	NPN Phototransistor	0.15 %	3 mA	1.3 V	30 V	30 mA	300 mV	10 us	10 us	2 V	200 mW	- 55 C	+ 125 C		Bulk
Transistor Output Optocouplers Isolator 3N244 Optek / TT Electronics 1: 18,13 € Non-Stocked	Mfr. Part No. 3N244 Mouser Part No 828-3N244	Optek / TT Electronics	Transistor Output Optocouplers Isolator Learn More about Optek / TT Electronics optek high reliability sensors	Datasheet	Non-Stocked	18,13 €	Min.: 1 Mult.: 1	No	Through Hole	TO-72-4	1 Channel	1000 Vrms	NPN Phototransistor	0.3 %	3 mA	1.3 V	30 V	30 mA	300 mV	10 us	10 us	2 V	200 mW	- 55 C	+ 125 C		Bulk
Transistor Output Optocouplers Optocoupled Isolator 4N24U Optek / TT Electronics 1: 29,63 € Non-Stocked Lead-Time 28 Weeks	Mfr. Part No. 4N24U Mouser Part No 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	29,63 €	Min.: 1 Mult.: 1		SMD/SMT	LCC-6	1 Channel	1000 Vrms	NPN Phototransistor														Bulk
Transistor Output Optocouplers TO-78 OCI Collector Isolated JANTX4N22A Optek / TT Electronics 100: 41,79 € Non-Stocked Lead-Time 34 Weeks	Mfr. Part No. JANTX4N22A Mouser Part No 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	41,79 €	Min.: 100 Mult.: 100		Through Hole	TO-78-6	1 Channel	1000 Vrms	NPN Phototransistor	25 %	10 mA	1.3 V	35 V	50 mA	300 mV	15 us	15 us	2 V	300 mW	- 55 C	+ 125 C

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