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NPN Si Phototransistors

Kingbright NPN Si Phototransistors are made with NPN silicon phototransistor chips. These phototransistors are mechanically and spectrally matched to infrared-emitting LED lamps. The NPN Si phototransistors operate at a temperature range from -40°C to +85°C. These phototransistors feature a maximum collector-to-emitter voltage of 30V and an emitter-to-collector voltage of 5V. Typical applications include infrared applied systems, optoelectronic switches, and photodetector control circuits.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (KRW) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Product Type	Mounting Style	Package / Case
	Phototransistors 4x4mm PHOTOTRANS RA SMD LED AA4040P3C-P22 Kingbright 1: ₩1,014 997In Stock	Mfr. Part # AA4040P3C-P22 Mouser Part # 604-AA4040P3C-P22	Kingbright	Phototransistors 4x4mm PHOTOTRANS RA SMD LED Learn More about Kingbright aa4040 smd leds	Datasheet	997In Stock	Cut Tape ₩1,014 ₩702 ₩500.8 Reel ₩413.4 ₩376 View ₩349.4 ₩333.8 ₩321.4 ₩308.9 MouseReel Available	Min.: 1 Mult.: 1 : 500		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 2.5x2mm PHOTOTRANS SMD LED AM2520P3C03-P22 Kingbright 1: ₩967.2 1,977In Stock	Mfr. Part # AM2520P3C03-P22 Mouser Part # 604-AM2520P3C03-P22	Kingbright	Phototransistors 2.5x2mm PHOTOTRANS SMD LED Learn More about Kingbright npn si phototransistors	Datasheet	1,977In Stock	Cut Tape ₩967.2 ₩669.2 ₩480.5 ₩397.8 Reel ₩351 View ₩318.2 ₩298 ₩288.6 ₩276.1 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 1.6x0.8mm PHOTOTRANS SMD LED AP1608P1C-P22 Kingbright 1: ₩468 4,320In Stock 8,000On Order	Mfr. Part # AP1608P1C-P22 Mouser Part # 604-AP1608P1C-P22	Kingbright	Phototransistors 1.6x0.8mm PHOTOTRANS SMD LED Learn More about Kingbright npn si phototransistors	Datasheet	4,320In Stock 8,000On Order	Cut Tape ₩468 ₩321.4 ₩226.2 ₩182.5 Reel ₩154.4 View ₩168.5 ₩138.8 ₩126.4 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 2x1.2mm PHOTOTRANS SMD LED AP2012P3C-P22 Kingbright 1: ₩499.2 3,955In Stock	Mfr. Part # AP2012P3C-P22 Mouser Part # 604-AP2012P3C-P22	Kingbright	Phototransistors 2x1.2mm PHOTOTRANS SMD LED Learn More about Kingbright npn si phototransistors	Datasheet	3,955In Stock	Cut Tape ₩499.2 ₩346.3 ₩244.9 ₩198.1 Reel ₩166.9 View ₩181 ₩152.9 ₩138.8 ₩134.2 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 3.2x1.6mm PHOTOTRANS SMD LED APTD3216P3C-P22 Kingbright 1: ₩639.6 3,126In Stock 4,000Expected 10/8/2026	Mfr. Part # APTD3216P3C-P22 Mouser Part # 604-APTD3216P3C-P22	Kingbright	Phototransistors 3.2x1.6mm PHOTOTRANS SMD LED Learn More about Kingbright ir dome lens smd leds	Datasheet	3,126In Stock 4,000Expected 10/8/2026	Cut Tape ₩639.6 ₩438.4 ₩312 ₩249.6 Reel ₩188.8 View ₩230.9 ₩170 ₩154.4 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Photodiodes 5mm PHOTODIODE WP7113PD1BT/BD-P22 Kingbright 1: ₩1,357.2 986In Stock	Mfr. Part # WP7113PD1BT/BD-P22 Mouser Part # 604-WP7113PD1BTBDP22	Kingbright	Photodiodes 5mm PHOTODIODE Learn More about Kingbright npn si phototransistors	Datasheet	986In Stock	₩1,357.2 ₩945.4 ₩656.8 ₩552.2 View ₩544.4 ₩488.3 ₩464.9 ₩439.9 ₩419.6	Min.: 1 Mult.: 1		Photodiodes	Through Hole	T-1 3/4
	Phototransistors 3mm PHOTOTRANSISTOR WP3DP3BT/BD-P22 Kingbright 1: ₩577.2 3,033In Stock	Mfr. Part # WP3DP3BT/BD-P22 Mouser Part # 604-WP3DP3BT/BD-P22	Kingbright	Phototransistors 3mm PHOTOTRANSISTOR Learn More about Kingbright npn si phototransistors	Datasheet	3,033In Stock	₩577.2 ₩393.1 ₩279.2 ₩227.8 View ₩209 ₩195 ₩179.4 ₩168.5 ₩157.6	Min.: 1 Mult.: 1		Phototransistors	Through Hole	T-1