3N245

Optoisolators are components designed to perform electrical isolation between their input and output circuits, such that when the input circuit is activated, the current will not be able to flow from the input to the output circuit. This is especially useful in applications such as isolating various pieces of equipment or circuits from one another, thus preventing electrical interference or power-line surges from affecting them. One variety of optoisolator is the 3N245 optoisolator, a type of optoisolator-transistor, photovoltaic output device.

The 3N245 is a three-terminal optoisolator, consisting of an infrared LED (light-emitting diode) light source encased in an epoxy-encapsulated package. Its name is derived from the device’s ‘3N’ type (the object’s surface has a black finish) and its model number, which is ‘245’. The 3N245 optoisolator was designed to perform electrical isolation between its input and output circuits at up to 500Vrms, typically. Its peak output current is determined by the ambient temperature and the maximum temperature rise of the device, and can reach up to 10 milliamps.

The 3N245 optoisolator has a range of application fields. It is often used in motor control applications as a control system interface, due to its high electrical isolation levels. It is also employed in other types of control applications, such as in the automotive, industrial, telecoms, and domestic markets. Additionally, the device is also used in lighting control systems, medical equipment, information appliances, and various other equipment.

When it comes to its working principle, the 3N245 optoisolator works by relying on photoelectric amplification to transfer a signal from its input to its output. The device is comprised of an infrared LED encased in an epoxy-encapsulated package, which acts as the fed-in light source. This generates an infrared signal, which is then amplified using an additional photovoltaic amplifier to produce a stronger signal. Its output stage then takes this amplified signal and passes it through a transistor, transforming it into an electric signal, free of any interference or power surge. The electric signal is then output from the 3N245 optoisolator, complete with its high-level of electrical isolation.

In conclusion, the 3N245 optoisolator is a transistor-photovoltaic output device designed for applications requiring electrical isolation between input and output circuits. This optoisolator makes use of photoelectric amplification to transfer a signal from its input to its output stage, which then passes it through a transistor before outputting a signal with a high-level of electrical isolation. The device is incredibly versatile, with applications ranging from motor control to lighting control, and can perform up to 500Vrms of electrical isolation.

WL12-3N2431	SICK, Inc.	141.26 $	1000	NPN RED M12
3N247	ON Semicondu...	0.0 $	1000	RECTIFIER BRIDGE 100V 1.5...
WL12-3N2451	SICK, Inc.	141.26 $	1000	NPN RED M12 FOCUS
3N244	TT Electroni...	10.75 $	1000	OPTOISOLATOR 1KV TRANS TO...
WTB12-3N2413	SICK, Inc.	167.65 $	1000	NPN IR M12 TEACH
WL9-3N2430	SICK, Inc.	110.89 $	1000	NPN LO/DO M12 4PIN NO ADJ
WL9G-3N2432	SICK, Inc.	151.35 $	1000	NPN LO/DO M12 4PIN W/CTA
WTB12-3N2411	SICK, Inc.	167.65 $	1000	NPN IR M12 POT
3N244TX	TT Electroni...	0.0 $	1000	OPTOISOLATOR 1KV TRANS TO...
WL9-3N2432	SICK, Inc.	119.62 $	1000	NPN LO/DO M12 4PIN TEACH
3N248	ON Semicondu...	0.0 $	1000	RECTIFIER BRIDGE 200V 1.5...
3N247-E4/51	Vishay Semic...	0.0 $	1000	DIODE BRIDGE 1.5A 100V KB...
WL9L-3N2432	SICK, Inc.	165.33 $	1000	NPN M12 4 PIN
3N248-E4/45	Vishay Semic...	0.0 $	1000	DIODE BRIDGE 1.5A 200V KB...
3N246-M4/51	Vishay Semic...	0.0 $	1000	BRIDGE RECT 1.5A 50V KBPM...
3N245	TT Electroni...	11.24 $	1000	OPTOISOLATOR 1KV TRANS TO...
3N249-M4/51	Vishay Semic...	0.0 $	1000	BRIDGE RECT 1.5A 400V KBP...
3N246-E4/72	Vishay Semic...	0.0 $	1000	BRIDGE RECT 1PHASE 50V 1....
3N249	ON Semicondu...	0.0 $	1000	RECTIFIER BRIDGE 400V 1.5...
WL12-3N2441	SICK, Inc.	141.26 $	1000	NPN RED M12 NON POLAR
WL12-3N2461	SICK, Inc.	141.26 $	1000	NPN RED M12 FOCUS NO POL
WTF12-3N2441	SICK, Inc.	167.65 $	1000	NPN RED M12 POT LONG
WTF12-3N2433	SICK, Inc.	167.65 $	1000	NPN RED M12 TEACH
WLG4S-3N2432V	SICK, Inc.	245.27 $	1000	SEN PHT NPN LO/DO M12 4PI...
WTB12-3N2431	SICK, Inc.	167.65 $	1000	NPN RED M12 POT
WSE12-3N2431	SICK, Inc.	180.07 $	1000	NPN M12 4 PIN LO/DO
3N246	ON Semicondu...	0.0 $	1000	RECTIFIER BRIDGE 50V 1.5A...
3N248-E4/72	Vishay Semic...	0.0 $	1000	BRIDGE RECT 1P 200V 1.5A ...
WTB9M4-3N2411	SICK, Inc.	151.35 $	1000	NPN IR LED M12 4PIN
WTB12-3N2433	SICK, Inc.	167.65 $	1000	NPN RED M12 TEACH
WSE9-3N2430	SICK, Inc.	147.47 $	1000	NPN LO/DO M12 4PIN NO ADJ
3N248-M4/51	Vishay Semic...	0.0 $	1000	BRIDGE RECT 1.5A 200V KBP...
3N247-E4/45	Vishay Semic...	0.0 $	1000	DIODE BRIDGE 1.5A 100V KB...
WTB27-3N2413	SICK, Inc.	231.3 $	1000	NPN IR M12 TEACH
WTB4SL-3N2462V	SICK, Inc.	284.88 $	1000	SEN PHT NPN LO/DO M12 4-P...
3N243TX	TT Electroni...	14.92 $	1000	OPTOISOLATOR 1KV TRANS TO...
3N249-E4/45	Vishay Semic...	0.0 $	1000	DIODE BRIDGE 1.5A 400V KB...
WTF12-3N2431	SICK, Inc.	167.65 $	1000	NPN RED M12 POT
3N247-E4/72	Vishay Semic...	0.0 $	1000	BRIDGE RECT 1P 100V 1.5A ...
WTB4S-3N2432V	SICK, Inc.	245.27 $	1000	SEN PHT NPN LO/DO M12 4PI...