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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 (CAD) 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: $0.936 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 $0.936 $0.648 $0.462 Reel $0.382 $0.347 View $0.323 $0.308 $0.297 $0.285 MouseReel Available	Min.: 1 Mult.: 1 : 500		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 2.5x2mm PHOTOTRANS SMD LED AM2520P3C03-P22 Kingbright 1: $0.85 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 $0.85 $0.586 $0.423 $0.35 Reel $0.324 View $0.294 $0.275 $0.266 $0.255 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 1.6x0.8mm PHOTOTRANS SMD LED AP1608P1C-P22 Kingbright 1: $0.432 12,320In Stock	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	12,320In Stock	Cut Tape $0.432 $0.297 $0.209 $0.168 Reel $0.143 View $0.156 $0.128 $0.117 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 2x1.2mm PHOTOTRANS SMD LED AP2012P3C-P22 Kingbright 1: $0.461 2,555In 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	2,555In Stock	Cut Tape $0.461 $0.32 $0.226 $0.183 Reel $0.154 View $0.167 $0.141 $0.128 $0.124 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 3.2x1.6mm PHOTOTRANS SMD LED APTD3216P3C-P22 Kingbright 1: $0.59 2,026In Stock 4,000Expected 2026-11-04	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	2,026In Stock 4,000Expected 2026-11-04	Cut Tape $0.59 $0.405 $0.288 $0.23 Reel $0.174 View $0.213 $0.157 $0.143 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Photodiodes 5mm PHOTODIODE WP7113PD1BT/BD-P22 Kingbright 1: $1.25 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	$1.25 $0.873 $0.606 $0.51 View $0.503 $0.451 $0.429 $0.406 $0.387	Min.: 1 Mult.: 1		Photodiodes	Through Hole	T-1 3/4
	Phototransistors 3mm PHOTOTRANSISTOR WP3DP3BT/BD-P22 Kingbright 1: $0.533 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	$0.533 $0.363 $0.258 $0.21 View $0.193 $0.18 $0.166 $0.156 $0.145	Min.: 1 Mult.: 1		Phototransistors	Through Hole	T-1