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3.8 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.
Single Colour LEDs RED RED CLEAR LENS 2.5mm PITCH SLR-343VCT32 ROHM Semiconductor 1: HK$4.44 4,125In Stock	Mfr. Part No. SLR-343VCT32 Mouser Part No 755-SLR-343VCT32	ROHM Semiconductor	Single Colour LEDs RED RED CLEAR LENS 2.5mm PITCH Learn More about ROHM Semiconductor rohm slr 343 lamps	Datasheet	4,125In Stock	Cut Tape HK$4.44 HK$3.02 HK$2.18 HK$1.79 Reel HK$1.55 View HK$1.67 HK$1.41 HK$1.30 HK$1.27	Min.: 1 Mult.: 1 : 2,000
Single Colour LEDs LED-Red SLR-343VR3F ROHM Semiconductor 1: HK$4.69 1,076In Stock 8,000Expected 14/12/2026	Mfr. Part No. SLR-343VR3F Mouser Part No 755-SLR-343VR3F	ROHM Semiconductor	Single Colour LEDs LED-Red Learn More about ROHM Semiconductor rohm slr 343 lamps	Datasheet	1,076In Stock 8,000Expected 14/12/2026	Cut Tape HK$4.69 HK$3.27 HK$2.36 HK$1.94 Reel HK$1.62 View HK$1.80 HK$1.49 HK$1.41 HK$1.32	Min.: 1 Mult.: 1 : 2,000
Single Colour LEDs RED DIFFUSED LENS 2.5mm PITCH SLR-343VRT32 ROHM Semiconductor 1: HK$4.69 1,981In Stock 12,000On Order	Mfr. Part No. SLR-343VRT32 Mouser Part No 755-SLR-343VRT32	ROHM Semiconductor	Single Colour LEDs RED DIFFUSED LENS 2.5mm PITCH Learn More about ROHM Semiconductor rohm optoelectronics	Datasheet	1,981In Stock 12,000On Order On Order Ship Dates Mfr. No: SLR-343VRT32 Stock: 1,981 Can Dispatch Immediately On Order: 6,000 Expected 1/12/2026 6,000 Expected 24/12/2026 Factory Lead Time: 17 Weeks	Cut Tape HK$4.69 HK$3.17 HK$2.26 HK$1.87 Reel HK$1.60 View HK$1.71 HK$1.49 HK$1.38 HK$1.27	Min.: 1 Mult.: 1 : 2,000
Single Colour LEDs LED UNI-COLOR YELLOW 585NM 2PIN SLR-343YC3F ROHM Semiconductor 1: HK$4.44 1,478In Stock	Mfr. Part No. SLR-343YC3F Mouser Part No 755-SLR-343YC3F	ROHM Semiconductor	Single Colour LEDs LED UNI-COLOR YELLOW 585NM 2PIN Learn More about ROHM Semiconductor rohm slr 343 lamps	Datasheet	1,478In Stock	HK$4.44 HK$3.02 HK$2.18 HK$1.79 View HK$1.67 HK$1.55 HK$1.41 HK$1.36 HK$1.27	Min.: 1 Mult.: 1
Single Colour LEDs 3.1MM 585NM YEL TRANSP SLR-343YCT32 ROHM Semiconductor 1: HK$4.44 1,726In Stock	Mfr. Part No. SLR-343YCT32 Mouser Part No 755-SLR-343YCT32	ROHM Semiconductor	Single Colour LEDs 3.1MM 585NM YEL TRANSP Learn More about ROHM Semiconductor rohm slr 343 lamps	Datasheet	1,726In Stock	Cut Tape HK$4.44 HK$3.09 HK$2.22 HK$1.82 Reel HK$1.57 View HK$1.69 HK$1.43 HK$1.32	Min.: 1 Mult.: 1 : 2,000
Single Colour LEDs LED-Yellow SLR-343YY3F ROHM Semiconductor 1: HK$4.69 461In Stock 4,000On Order	Mfr. Part No. SLR-343YY3F Mouser Part No 755-SLR-343YY3F	ROHM Semiconductor	Single Colour LEDs LED-Yellow Learn More about ROHM Semiconductor rohm slr 343 lamps	Datasheet	461In Stock 4,000On Order On Order Ship Dates Mfr. No: SLR-343YY3F Stock: 461 Can Dispatch Immediately On Order: 2,000 Expected 15/2/2027 2,000 Expected 22/2/2027 Factory Lead Time: 17 Weeks	HK$4.69 HK$3.17 HK$2.26 HK$1.87 View HK$1.67 HK$1.55 HK$1.41 HK$1.36 HK$1.27	Min.: 1 Mult.: 1
Single Colour LEDs 3.1MM 585NM YEL DIFF SLR-343YYT32 ROHM Semiconductor 1: HK$4.69 821In Stock 8,000Expected 1/12/2026	Mfr. Part No. SLR-343YYT32 Mouser Part No 755-SLR-343YYT32	ROHM Semiconductor	Single Colour LEDs 3.1MM 585NM YEL DIFF Learn More about ROHM Semiconductor rohm slr 343 lamps	Datasheet	821In Stock 8,000Expected 1/12/2026	Cut Tape HK$4.69 HK$3.17 HK$2.26 HK$1.87 Reel HK$1.60 View HK$1.71 HK$1.49 HK$1.38 HK$1.27	Min.: 1 Mult.: 1 : 2,000
Single Colour LEDs Red Diffused LITEON LTL-1CHE LTL-1CHE LITEON 1: HK$1.64 9,313In Stock	Mfr. Part No. LTL-1CHE Mouser Part No 859-LTL-1CHE	LITEON	Single Colour LEDs Red Diffused	Datasheet	9,313In Stock	HK$1.64 HK$1.09 HK$0.74 HK$0.608 View HK$0.526 HK$0.501 HK$0.452 HK$0.419 HK$0.378	Min.: 1 Mult.: 1
Single Colour LEDs Thru-Hole Lamp 3mm Cyl Grn Diffused LITEON LTL-2231AT LTL-2231AT LITEON 1: HK$2.55 2,532In Stock	Mfr. Part No. LTL-2231AT Mouser Part No 859-LTL-2231AT	LITEON	Single Colour LEDs Thru-Hole Lamp 3mm Cyl Grn Diffused	Datasheet	2,532In Stock	HK$2.55 HK$1.77 HK$1.25 HK$1.01 View HK$0.921 HK$0.855 HK$0.74 HK$0.699 HK$0.649	Min.: 1 Mult.: 1
Single Colour LEDs Red Clear LITEON LTL1CHKEKNN LTL1CHKEKNN LITEON 1: HK$1.81 10,687In Stock	Mfr. Part No. LTL1CHKEKNN Mouser Part No 859-LTL1CHKEKNN	LITEON	Single Colour LEDs Red Clear	Datasheet	10,687In Stock	HK$1.81 HK$1.24 HK$0.871 HK$0.699 View HK$0.633 HK$0.584 HK$0.526 HK$0.427	Min.: 1 Mult.: 1
Single Colour LEDs Blue Clear 470nm LITEON LTL1CHTBK3LC LTL1CHTBK3LC LITEON 1: HK$1.89 6,537In Stock	Mfr. Part No. LTL1CHTBK3LC Mouser Part No 859-LTL1CHTBK3LC	LITEON	Single Colour LEDs Blue Clear 470nm	Datasheet	6,537In Stock	HK$1.89 HK$1.30 HK$0.912 HK$0.732 View HK$0.666 HK$0.617 HK$0.559 HK$0.51 HK$0.469	Min.: 1 Mult.: 1
UV LEDs 235nm SMD Domed Lens MTSM2350D-UV Marktech Optoelectronics 1: HK$2,343.44 5In Stock	Mfr. Part No. MTSM2350D-UV Mouser Part No 193-MTSM2350D-UV	Marktech Optoelectronics	UV LEDs 235nm SMD Domed Lens Learn More about Marktech Optoelectronics marktech mtsm2350x mtsm2550x emitters	Datasheet	5In Stock	HK$2,343.44 HK$2,067.82	Min.: 1 Mult.: 1
Infrared Emitters IR EMITTER FOR REMOTE CONTROLLER SIR-34ST3F ROHM Semiconductor 1: HK$7.48 3,642In Stock	Mfr. Part No. SIR-34ST3F Mouser Part No 755-SIR-34ST3F	ROHM Semiconductor	Infrared Emitters IR EMITTER FOR REMOTE CONTROLLER Learn More about ROHM Semiconductor rohmopticalsensors	Datasheet	3,642In Stock	HK$7.48 HK$5.20 HK$3.78 HK$3.10 View HK$2.89 HK$2.75 HK$2.56 HK$2.38 HK$2.24	Min.: 1 Mult.: 1
Single Colour LEDs 3mm/ULTRA GRN (505NM) BL-BGX3V1 American Bright LED 1: HK$3.95 12,629In Stock	Mfr. Part No. BL-BGX3V1 Mouser Part No 442-BLBGX3V1	American Bright LED	Single Colour LEDs 3mm/ULTRA GRN (505NM) Learn More about American Bright LED american bright bl bx through hole standard leds	Datasheet	12,629In Stock	HK$3.95 HK$2.68 HK$1.92 HK$1.58 View HK$1.37 HK$1.29 HK$1.22 HK$1.19 HK$1.09	Min.: 1 Mult.: 1
Single Colour LEDs Green Diffused 565nm 60deg SSL-LX305D4GD Lumex 1: HK$2.55 8,669In Stock	Mfr. Part No. SSL-LX305D4GD Mouser Part No 696-SSL-LX305D4GD	Lumex	Single Colour LEDs Green Diffused 565nm 60deg	Datasheet	8,669In Stock	HK$2.55 HK$1.72 HK$1.21 HK$0.978 View HK$0.806 HK$0.756 HK$0.699 HK$0.641 HK$0.617	Min.: 1 Mult.: 1
Single Colour LEDs Red 635nm 50mcd T-3mm Transparent SSL-LX305D4IT Lumex 1: HK$2.71 3,826In Stock	Mfr. Part No. SSL-LX305D4IT Mouser Part No 696-SSL-LX305D4IT	Lumex	Single Colour LEDs Red 635nm 50mcd T-3mm Transparent	Datasheet	3,826In Stock	HK$2.71 HK$1.82 HK$1.29 HK$1.04 View HK$0.904 HK$0.847 HK$0.773 HK$0.732 HK$0.674	Min.: 1 Mult.: 1
Single Colour LEDs LED Thru-Hole 3mm Amber 610 nm 3AC-S Bivar 1: HK$2.79 1,307In Stock	Mfr. Part No. 3AC-S Mouser Part No 749-3AC-S	Bivar	Single Colour LEDs LED Thru-Hole 3mm Amber 610 nm	Datasheet	1,307In Stock	HK$2.79 HK$1.93 HK$1.36 HK$1.10 View HK$0.945 HK$0.871 HK$0.822 HK$0.764	Min.: 1 Mult.: 1
Single Colour LEDs LED Thru-Hole 3mm Amber 610 nm 3AD-S Bivar 1: HK$4.03 1,021In Stock	Mfr. Part No. 3AD-S Mouser Part No 749-3AD-S	Bivar	Single Colour LEDs LED Thru-Hole 3mm Amber 610 nm	Datasheet	1,021In Stock	HK$4.03 HK$2.63 HK$1.75 HK$1.46 View HK$1.06 HK$0.995 HK$0.937 HK$0.855	Min.: 1 Mult.: 1
Multi-Colour LEDs Red/Green 635/568nm White Diffused 3BC-F Bivar 1: HK$5.59 1,080In Stock	Mfr. Part No. 3BC-F Mouser Part No 749-3BC-F	Bivar	Multi-Colour LEDs Red/Green 635/568nm White Diffused	Datasheet	1,080In Stock	HK$5.59 HK$3.89 HK$2.81 HK$2.33 View HK$2.04 HK$1.89 HK$1.80 HK$1.69	Min.: 1 Mult.: 1
Multi-Colour LEDs LED Thru-Hole 3mm Bi-Color Yel/Grn 3BC-Y/G-F Bivar 1: HK$6.41 127In Stock	Mfr. Part No. 3BC-Y/G-F Mouser Part No 749-3BC-Y/G-F	Bivar	Multi-Colour LEDs LED Thru-Hole 3mm Bi-Color Yel/Grn	Datasheet	127In Stock	HK$6.41 HK$4.37 HK$3.14 HK$2.59 View HK$2.27 HK$2.18 HK$2.06 HK$1.94 HK$1.79	Min.: 1 Mult.: 1
Multi-Colour LEDs LED Thru-Hole 3mm Bi-Color HE Red/Grn 3BCC-F Bivar 1: HK$5.92 993In Stock	Mfr. Part No. 3BCC-F Mouser Part No 749-3BCC-F	Bivar	Multi-Colour LEDs LED Thru-Hole 3mm Bi-Color HE Red/Grn	Datasheet	993In Stock	HK$5.92 HK$4.13 HK$3.00 HK$2.49 View HK$2.19 HK$2.15 HK$2.02 HK$1.88 HK$1.74	Min.: 1 Mult.: 1
Single Colour LEDs LED Thru-Hole 3mm Green 565 nm 3GDL-F Bivar 1: HK$3.04 337In Stock	Mfr. Part No. 3GDL-F Mouser Part No 749-3GDL-F	Bivar	Single Colour LEDs LED Thru-Hole 3mm Green 565 nm	Datasheet	337In Stock	HK$3.04 HK$2.10 HK$1.61 HK$1.16 View HK$1.04 HK$0.995 HK$0.929 HK$0.871 HK$0.756	Min.: 1 Mult.: 1
Single Colour LEDs LED Thru-Hole 3mm HE Red 635 nm 3HDL-F Bivar 1: HK$3.86 956In Stock	Mfr. Part No. 3HDL-F Mouser Part No 749-3HDL-F	Bivar	Single Colour LEDs LED Thru-Hole 3mm HE Red 635 nm	Datasheet	956In Stock	HK$3.86 HK$2.51 HK$1.67 HK$1.15 View HK$1.01 HK$0.945 HK$0.88 HK$0.814 HK$0.789	Min.: 1 Mult.: 1
Single Colour LEDs LED Thru-Hole 3mm Green 574 nm 3SUGC-F Bivar 1: HK$6.25 684In Stock	Mfr. Part No. 3SUGC-F Mouser Part No 749-3SUGC-F	Bivar	Single Colour LEDs LED Thru-Hole 3mm Green 574 nm	Datasheet	684In Stock	HK$6.25 HK$4.10 HK$2.73 HK$2.25 View HK$1.73 HK$1.61 HK$1.31 HK$1.29	Min.: 1 Mult.: 1
Single Colour LEDs LED Thru-Hole 3mm Red 660 nm 3SURC-F Bivar 1: HK$6.25 969In Stock	Mfr. Part No. 3SURC-F Mouser Part No 749-3SURC-F	Bivar	Single Colour LEDs LED Thru-Hole 3mm Red 660 nm	Datasheet	969In Stock	HK$6.25 HK$4.10 HK$2.73 HK$2.29 View HK$1.68 HK$1.56 HK$1.31	Min.: 1 Mult.: 1

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