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4 mm Opto-electronics

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) Filter the results in the table by unit price based on your quantity.	Qty.
LED Lighting Driver ICs 3 channel RGB/White LED driver with inte A 926-LP5521YQ/NOPB LP5521YQX/NOPB Texas Instruments 1: HK$15.54 5,250In Stock	Mfr. Part No. LP5521YQX/NOPB Mouser Part No 926-LP5521YQX/NOPB	Texas Instruments	LED Lighting Driver ICs 3 channel RGB/White LED driver with inte A 926-LP5521YQ/NOPB	Datasheet	5,250In Stock	Cut Tape HK$15.54 HK$11.51 HK$10.44 HK$9.29 View Reel HK$7.87 HK$8.80 HK$8.47 HK$7.87 HK$7.87 MouseReel Available	Min.: 1 Mult.: 1 : 4,500
Single Colour LEDs Green 570nm Water Clear 70mcd AA4040CGCK Kingbright 1: HK$4.27 1,113In Stock 5,000Expected 23/11/2026	Mfr. Part No. AA4040CGCK Mouser Part No 604-AA4040CGCK	Kingbright	Single Colour LEDs Green 570nm Water Clear 70mcd Learn More about Kingbright aa4040 smd leds	Datasheet	1,113In Stock 5,000Expected 23/11/2026	Cut Tape HK$4.27 HK$2.95 HK$2.15 Reel HK$1.74 HK$1.61 View HK$1.54 HK$1.47 HK$1.44 HK$1.36 MouseReel Available	Min.: 1 Mult.: 1 : 500
Single Colour LEDs Grn 570nm 120mcd 120deg Water Clr AA4040MGS Kingbright 1: HK$6.41 2,715In Stock	Mfr. Part No. AA4040MGS Mouser Part No 604-AA4040MGS	Kingbright	Single Colour LEDs Grn 570nm 120mcd 120deg Water Clr	Datasheet	2,715In Stock	Cut Tape HK$6.41 HK$4.44 HK$3.22 Reel HK$2.64 HK$2.46 View HK$2.34 HK$2.23 HK$2.06 HK$1.94 MouseReel Available	Min.: 1 Mult.: 1 : 500
Single Colour LEDs Blue Water Clear 470nm 150mcd AA4040QBS/D Kingbright 1: HK$4.11 5,238In Stock	Mfr. Part No. AA4040QBS/D Mouser Part No 604-AA4040QBS/D	Kingbright	Single Colour LEDs Blue Water Clear 470nm 150mcd Learn More about Kingbright aa4040 smd leds	Datasheet	5,238In Stock	Cut Tape HK$4.11 HK$2.83 HK$2.03 Reel HK$1.68 HK$1.57 View HK$1.45 HK$1.41 HK$1.40 HK$1.39 MouseReel Available	Min.: 1 Mult.: 1 : 500
Single Colour LEDs Blue Water Clear 465nm 300mcd AA4040QBS/G Kingbright 1: HK$9.04 3,832In Stock	Mfr. Part No. AA4040QBS/G Mouser Part No 604-AA4040QBS/G	Kingbright	Single Colour LEDs Blue Water Clear 465nm 300mcd Learn More about Kingbright aa4040 smd leds	Datasheet	3,832In Stock	Cut Tape HK$9.04 HK$5.76 HK$4.64 Reel HK$3.82 HK$3.59 View HK$3.37 HK$3.11 HK$3.00 HK$2.93 MouseReel Available	Min.: 1 Mult.: 1 : 500
Single Colour LEDs Green Water Clear 568nm 30mcd AA4040SGS Kingbright 1: HK$6.41 1,147In Stock 10,000Expected 2/11/2026	Mfr. Part No. AA4040SGS Mouser Part No 604-AA4040SGS	Kingbright	Single Colour LEDs Green Water Clear 568nm 30mcd	Datasheet	1,147In Stock 10,000Expected 2/11/2026	Cut Tape HK$6.41 HK$4.23 HK$2.83 Reel HK$1.70 HK$1.61 View HK$1.55 HK$1.46 HK$1.33 MouseReel Available	Min.: 1 Mult.: 1 : 500
Single Colour LEDs Red 630nm Water Clear 250mcd AA4040SURCK Kingbright 1: HK$5.10 4,240In Stock	Mfr. Part No. AA4040SURCK Mouser Part No 604-AA4040SURCK	Kingbright	Single Colour LEDs Red 630nm Water Clear 250mcd	Datasheet	4,240In Stock	Cut Tape HK$5.10 HK$3.53 HK$2.53 Reel HK$2.09 HK$1.89 View HK$1.76 HK$1.68 HK$1.61 HK$1.55	Min.: 1 Mult.: 1 : 500
Single Colour LEDs Yellow Water Clear 588nm 15mcd AA4040YS Kingbright 1: HK$3.86 1,864In Stock	Mfr. Part No. AA4040YS Mouser Part No 604-AA4040YS	Kingbright	Single Colour LEDs Yellow Water Clear 588nm 15mcd	Datasheet	1,864In Stock	Cut Tape HK$3.86 HK$2.65 HK$1.90 Reel HK$1.55 HK$1.38 View HK$1.28 HK$1.24 MouseReel Available	Min.: 1 Mult.: 1 : 500
Single Colour LEDs Green Water Clear 525nm 800mcd AA4040ZGS Kingbright 1: HK$5.75 5,447In Stock	Mfr. Part No. AA4040ZGS Mouser Part No 604-AA4040ZGS	Kingbright	Single Colour LEDs Green Water Clear 525nm 800mcd Learn More about Kingbright aa4040 smd leds	Datasheet	5,447In Stock	Cut Tape HK$5.75 HK$3.99 HK$2.90 Reel HK$2.43 HK$2.27 View HK$2.14 HK$2.09 HK$2.08 HK$2.02 MouseReel Available	Min.: 1 Mult.: 1 : 500
Single Colour LEDs Grn Diffused 568nm 25mcd 60deg angle WP115A10GD Kingbright 1: HK$2.14 8,134In Stock	Mfr. Part No. WP115A10GD Mouser Part No 604-WP115A10GD	Kingbright	Single Colour LEDs Grn Diffused 568nm 25mcd 60deg angle	Datasheet	8,134In Stock	HK$2.14 HK$1.48 HK$1.04 HK$0.838 View HK$0.764 HK$0.707 HK$0.649 HK$0.608 HK$0.567	Min.: 1 Mult.: 1
Single Colour LEDs Grn Trnsparent 568nm 50mcd 50deg angle WP115A10GT Kingbright 1: HK$2.14 1,313In Stock	Mfr. Part No. WP115A10GT Mouser Part No 604-WP115A10GT	Kingbright	Single Colour LEDs Grn Trnsparent 568nm 50mcd 50deg angle	Datasheet	1,313In Stock	HK$2.14 HK$1.48 HK$1.04 HK$0.838 View HK$0.806 HK$0.707 HK$0.649 HK$0.608 HK$0.567	Min.: 1 Mult.: 1
Multi-Colour LEDs Grn Yellow 568 588nm Diffused 30 15mcd WP115VGYW Kingbright 1: HK$4.93 2,074In Stock	Mfr. Part No. WP115VGYW Mouser Part No 604-WP115VGYW	Kingbright	Multi-Colour LEDs Grn Yellow 568 588nm Diffused 30 15mcd	Datasheet	2,074In Stock	HK$4.93 HK$3.38 HK$2.41 HK$1.98 View HK$1.78 HK$1.66 HK$1.54 HK$1.50 HK$1.41	Min.: 1 Mult.: 1
Multi-Colour LEDs RED/GRN WHT DIFF WP115WEGW Kingbright 1: HK$4.11 8,868In Stock	Mfr. Part No. WP115WEGW Mouser Part No 604-WP115WEGW	Kingbright	Multi-Colour LEDs RED/GRN WHT DIFF	Datasheet	8,868In Stock	HK$4.11 HK$2.85 HK$1.93 HK$1.53 View HK$1.41 HK$1.36 HK$1.27 HK$1.22 HK$1.15	Min.: 1 Mult.: 1
Multi-Colour LEDs Red Yellow 625 588nm Diffused 40 20mcd WP115WEYW Kingbright 1: HK$3.04 4,049In Stock 20,000Expected 30/10/2026	Mfr. Part No. WP115WEYW Mouser Part No 604-WP115WEYW	Kingbright	Multi-Colour LEDs Red Yellow 625 588nm Diffused 40 20mcd	Datasheet	4,049In Stock 20,000Expected 30/10/2026	HK$3.04 HK$2.07 HK$1.47 HK$1.19 View HK$1.03 HK$0.945 HK$0.847 HK$0.806	Min.: 1 Mult.: 1
Single Colour LEDs Grn 30mcd 568nm 60 deg Diffused WP3A10GD Kingbright 1: HK$2.14 22,537In Stock	Mfr. Part No. WP3A10GD Mouser Part No 604-WP3A10GD	Kingbright	Single Colour LEDs Grn 30mcd 568nm 60 deg Diffused	Datasheet	22,537In Stock	HK$2.14 HK$1.45 HK$0.962 HK$0.74 View HK$0.666 HK$0.625 HK$0.567 HK$0.526	Min.: 1 Mult.: 1
Single Colour LEDs Red 30mcd 625nm 60 deg Diffused WP3A10ID Kingbright 1: HK$2.14 5,847In Stock	Mfr. Part No. WP3A10ID Mouser Part No 604-WP3A10ID	Kingbright	Single Colour LEDs Red 30mcd 625nm 60 deg Diffused	Datasheet	5,847In Stock	HK$2.14 HK$1.45 HK$1.02 HK$0.822 View HK$0.666 HK$0.641 HK$0.575 HK$0.559 HK$0.518	Min.: 1 Mult.: 1
Single Colour LEDs Yel 15mcd 588mcd 60 deg Diffused WP3A10YD Kingbright 1: HK$2.14 1,129In Stock	Mfr. Part No. WP3A10YD Mouser Part No 604-WP3A10YD	Kingbright	Single Colour LEDs Yel 15mcd 588mcd 60 deg Diffused	Datasheet	1,129In Stock	HK$2.14 HK$1.45 HK$1.02 HK$0.822 View HK$0.748 HK$0.69 HK$0.625 HK$0.592 HK$0.551	Min.: 1 Mult.: 1
Single Colour LEDs Green 568nm Diffused 20mcd WP3A8GD Kingbright 1: HK$1.89 19,591In Stock	Mfr. Part No. WP3A8GD Mouser Part No 604-WP3A8GD	Kingbright	Single Colour LEDs Green 568nm Diffused 20mcd	Datasheet	19,591In Stock	HK$1.89 HK$1.27 HK$0.888 HK$0.707 View HK$0.617 HK$0.592 HK$0.543 HK$0.501 HK$0.469	Min.: 1 Mult.: 1
Single Colour LEDs Yellow 588nm Diffused 15mcd WP3A8YD Kingbright 1: HK$2.30 1,828In Stock	Mfr. Part No. WP3A8YD Mouser Part No 604-WP3A8YD	Kingbright	Single Colour LEDs Yellow 588nm Diffused 15mcd	Datasheet	1,828In Stock	HK$2.30 HK$1.57 HK$1.10 HK$0.888 View HK$0.806 HK$0.74 HK$0.682 HK$0.641 HK$0.575	Min.: 1 Mult.: 1
Multi-Colour LEDs Red/Green Diffused 625/568nm 40/35mcd WP3VEGW Kingbright 1: HK$4.11 10,138In Stock 21,500Expected 16/11/2026	Mfr. Part No. WP3VEGW Mouser Part No 604-WP3VEGW	Kingbright	Multi-Colour LEDs Red/Green Diffused 625/568nm 40/35mcd	Datasheet	10,138In Stock 21,500Expected 16/11/2026	HK$4.11 HK$2.80 HK$2.01 HK$1.50 View HK$1.39 HK$1.35 HK$1.27 HK$1.18 HK$1.13	Min.: 1 Mult.: 1
Multi-Colour LEDs Grn/Yellow Diffused 568/588nm 35/15mcd WP3VGYW Kingbright 1: HK$4.77 750In Stock	Mfr. Part No. WP3VGYW Mouser Part No 604-WP3VGYW	Kingbright	Multi-Colour LEDs Grn/Yellow Diffused 568/588nm 35/15mcd	Datasheet	750In Stock	HK$4.77 HK$3.49 HK$2.52 HK$2.18 View HK$2.00 HK$1.76 HK$1.64 HK$1.56 HK$1.46	Min.: 1 Mult.: 1
LED Lighting Driver ICs Traic Dimm LED Offline Driver 120Hz AL9901FDF-13 Diodes Incorporated 1: HK$14.63 42In Stock 6,000Expected 26/5/2027	Mfr. Part No. AL9901FDF-13 Mouser Part No 621-AL9901FDF-13	Diodes Incorporated	LED Lighting Driver ICs Traic Dimm LED Offline Driver 120Hz Learn More about Diodes Incorporated diodes al9901 drivers	Datasheet	42In Stock 6,000Expected 26/5/2027	Cut Tape HK$14.63 HK$10.69 HK$9.45 HK$8.63 Reel HK$7.18 View HK$8.38 HK$8.15 HK$8.10 HK$7.17 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Solid State Relays - SSRs Solid State Relay G3NA-205B-UTU AC100-240 Omron Automation and Safety 1: HK$478.16 4In Stock	Mfr. Part No. G3NA-205B-UTU AC100-240 Mouser Part No 653-G3NA205BUTAC1240	Omron Automation and Safety	Solid State Relays - SSRs Solid State Relay	Datasheet	4In Stock	HK$478.16 HK$461.88 HK$454.48 HK$446.76 View HK$440.10 Quote	Min.: 1 Mult.: 1
Solid State Relays - SSRs Solid State Relay G3NA-220B-UTU AC100-240 Omron Automation and Safety 1: HK$547.12 14In Stock	Mfr. Part No. G3NA-220B-UTU AC100-240 Mouser Part No 653-G3NA220BUTAC1240	Omron Automation and Safety	Solid State Relays - SSRs Solid State Relay	Datasheet	14In Stock	HK$547.12 HK$531.34 HK$486.05 HK$472.65 View HK$460.73 Quote	Min.: 1 Mult.: 1
Solid State Relays - SSRs Solid State Relay G3NA-225B-UTU AC100-240 Omron Automation and Safety 1: HK$547.12 21In Stock	Mfr. Part No. G3NA-225B-UTU AC100-240 Mouser Part No 653-G3NA225BUTAC1240	Omron Automation and Safety	Solid State Relays - SSRs Solid State Relay	Datasheet	21In Stock	HK$547.12 HK$516.96 HK$497.39 HK$480.21 View HK$463.69 Quote	Min.: 1 Mult.: 1