Fairchild Semiconductor Phototransistors 3

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Part	RoHS	Manufacturer	Optoelectronic Type	Mounting Feature	Terminal Finish	Configuration	Size	Maximum Dark Current	No. of Functions	Infrared (IR) Range	Peak Wavelength (nm)	Nominal Supply Voltage	Packing Method	Maximum Response Time	Sub-Category	Maximum Operating Temperature	Shape	Minimum Operating Temperature	Minimum Collector-emitter Breakdown Voltage	Maximum Power Dissipation	Additional Features	Nominal Light Current	JESD-609 Code	Maximum On State Current
QSD122		Fairchild Semiconductor	PHOTO TRANSISTOR	THROUGH HOLE MOUNT	Matte Tin (Sn)	SINGLE	5 mm	100 nA	1	YES	880			.000006 s	Photo Transistors	100 Cel	ROUND	-40 Cel	30 V	.1 W	HIGH SENSITIVITY, DAY LIGHT FILTER	1 mA	e3
QSE213C		Fairchild Semiconductor	PHOTO TRANSISTOR	THROUGH HOLE MOUNT		SINGLE	1.52 mm	100 nA	1	YES	880				Photo Transistors	100 Cel	ROUND	-40 Cel	30 V	.1 W	DAYLIGHT FILTER, SIDE LOOKER	.2 mA
L14G2		Fairchild Semiconductor	PHOTO TRANSISTOR	THROUGH HOLE MOUNT		SINGLE		100 nA	1	YES	940			.000005 s	Photo Transistors	125 Cel	ROUND	-65 Cel	30 V	.6 W		.5 mA		.05 A

Phototransistors

A phototransistor is an electronic component that uses light to control the flow of electrical current. It is a type of bipolar transistor that is designed to respond to the presence of light by amplifying the current flowing through it. Phototransistors are widely used in a variety of applications, including in optical communication systems, photodetectors, and motion detectors.

Phototransistors work by using light to generate a flow of electrons that controls the flow of current through the transistor. When light hits the phototransistor, it causes electrons to be released, which flow through the transistor and control the current flowing through it. The current flowing through the transistor can be amplified and used to control other components in a circuit.