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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 (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	Product Type	Mounting Style	Package / Case
	Phototransistors 2.5x2mm PHOTOTRANS SMD LED AM2520P3C03-P22 Kingbright 1: ¥103 1,997In 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	1,997In Stock	Cut Tape ¥103 ¥71.3 ¥51.2 ¥42.4 Reel ¥37.4 View ¥33.9 ¥31.7 ¥30.7 ¥29.4 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 1.6x0.8mm PHOTOTRANS SMD LED AP1608P1C-P22 Kingbright 1: ¥49.8 4,340In Stock 8,000Expected 10/5/2026	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	4,340In Stock 8,000Expected 10/5/2026	Cut Tape ¥49.8 ¥34.2 ¥24.1 ¥19.4 Reel ¥16.4 View ¥17.9 ¥14.8 ¥13.5 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 2x1.2mm PHOTOTRANS SMD LED AP2012P3C-P22 Kingbright 1: ¥53.2 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 ¥53.2 ¥36.9 ¥26.1 ¥21.1 Reel ¥17.8 View ¥19.3 ¥16.3 ¥14.8 ¥14.3 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Phototransistors 3.2x1.6mm PHOTOTRANS SMD LED APTD3216P3C-P22 Kingbright 1: ¥68.1 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 ¥68.1 ¥46.7 ¥33.2 ¥26.6 Reel ¥20.1 View ¥24.6 ¥18.1 ¥16.4 MouseReel Available	Min.: 1 Mult.: 1 : 2,000		Phototransistors	SMD/SMT	SMD-2
	Photodiodes 5mm PHOTODIODE WP7113PD1BT/BD-P22 Kingbright 1: ¥144.5 990In Stock	Mfr. Part # WP7113PD1BT/BD-P22 Mouser Part # 604-WP7113PD1BTBDP22	Kingbright	Photodiodes 5mm PHOTODIODE Learn More about Kingbright npn si phototransistors	Datasheet	990In Stock	¥144.5 ¥100.7 ¥69.9 ¥58.8 View ¥58 ¥52 ¥49.5 ¥46.8 ¥44.7	Min.: 1 Mult.: 1		Photodiodes	Through Hole	T-1 3/4
	Phototransistors 3mm PHOTOTRANSISTOR WP3DP3BT/BD-P22 Kingbright 1: ¥61.5 3,053In Stock	Mfr. Part # WP3DP3BT/BD-P22 Mouser Part # 604-WP3DP3BT/BD-P22	Kingbright	Phototransistors 3mm PHOTOTRANSISTOR Learn More about Kingbright npn si phototransistors	Datasheet	3,053In Stock	¥61.5 ¥41.9 ¥29.7 ¥24.3 View ¥22.3 ¥20.8 ¥19.1 ¥17.9 ¥16.8	Min.: 1 Mult.: 1		Phototransistors	Through Hole	T-1
	Phototransistors 4x4mm PHOTOTRANS RA SMD LED AA4040P3C-P22 Kingbright 1: ¥108 497In Stock 500Expected 10/21/2026	Mfr. Part # AA4040P3C-P22 Mouser Part # 604-AA4040P3C-P22	Kingbright	Phototransistors 4x4mm PHOTOTRANS RA SMD LED Learn More about Kingbright aa4040 smd leds	Datasheet	497In Stock 500Expected 10/21/2026	Cut Tape ¥108 ¥74.7 ¥53.3 Reel ¥44 ¥40 View ¥37.2 ¥35.5 ¥34.2 ¥32.9 MouseReel Available	Min.: 1 Mult.: 1 : 500		Phototransistors	SMD/SMT	SMD-2