550/551/555 Series LED Circuit Board Indicators

Dialight 550, 551, and 555 Series Single Level Circuit Board Indicators (CBI) are offered in 2mm, 3mm, and 5mm package sizes, and in a wide variety of colors. The 550 Series includes 5mm LEDs in green, red, yellow, and bi-color red/green, in top view, square back, and sloped back housing. Multiple 550 Series CBIs form horizontal LED arrays on 6.35mm, 7.24mm, or 7.62mm center-lines. The 551 Series includes 3mm LEDs in green, yellow, red, blue, bi-color red/green, and yellow/green. Multiple 551 Series CBIs form horizontal LED arrays on 4.2mm or 4.45mm center-lines. The 555 Series includes 2mm LEDs in yellow, red, and green, in single, top view, and quad packaging. Multiple 555 Series CBIs form horizontal LED arrays on 2.54mm center-lines. All of the Dialight 550/551/555 Series Single Level Circuit Board Indicators come in high contrast, UL 94 V-0 rated, black housing with housing stand-offs to facilitate PCB cleaning.

Results: 34
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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Illumination Color
LED Size
Wavelength
Luminous Intensity
Mounting Style
Viewing Angle
Lens Color/Style
If - Forward Current
Vf - Forward Voltage
Series
Packaging
Dialight LED Circuit Board Indicators GREEN DIFFUSED 5 VOLT
Datasheet
3,488In Stock
1,600Expected 2027-01-20
$4.06
$2.30
$1.81
$1.73
Min.: 1
Mult.: 1
Green 2 mm 565 nm 2.5 mcd Through Hole 40 deg Tinted 20 mA 555 Bulk
Dialight LED Circuit Board Indicators GREEN DIFFUSED 5 VOLTS
Datasheet
4,394In Stock
3,100Expected 2026-12-16
$2.52
$1.80
$1.30
$1.17
View
Min.: 1
Mult.: 1
Green 565 nm 19 mcd Through Hole 60 deg Tinted 10 mA 5 V 551 Bulk
Dialight LED Circuit Board Indicators CBI 3MM BLUE
Datasheet
1,561In Stock
$5.66
$4.18
$2.88
$2.78
View
Min.: 1
Mult.: 1
Blue 3 mm 428 nm 12 mcd Through Hole 70 deg Colorless, Diffused 10 mA 3.5 V 551 Bulk
Dialight LED Circuit Board Indicators YELLOW DIFFUSED LOW CURRENT
Datasheet
3,503In Stock
$2.23
$1.58
$1.19
$1.02
View
Min.: 1
Mult.: 1
Yellow 1.6 mcd Through Hole 60 deg Tinted 2 mA 1.8 V 551 Bulk
Dialight LED Circuit Board Indicators GREEN DIFFUSED
Datasheet
80In Stock
1,500Expected 2027-01-20
$2.22
$1.58
$1.12
$0.933
View
Min.: 1
Mult.: 1
Green 565 nm 12.3 mcd Through Hole 60 deg Tinted 20 mA 2.1 V 550 Bulk
Dialight LED Circuit Board Indicators GREEN DIFFUSED
Datasheet
514In Stock
1,700Expected 2027-05-05
$1.80
$1.27
$0.946
$0.828
View
Min.: 1
Mult.: 1
Green 565 nm 12.3 mcd Through Hole 60 deg Tinted 20 mA 2.1 V 550 Bulk
Dialight LED Circuit Board Indicators YELLOW DIFFUSED
Datasheet
34In Stock
2,100Expected 2027-04-14
$1.60
$1.06
$0.701
$0.619
View
Min.: 1
Mult.: 1
Yellow 5 mm 585 nm 12.3 mcd Through Hole 60 deg Tinted 20 mA 2.1 V 550 Bulk
Dialight LED Circuit Board Indicators RED DIFFUSED
Datasheet
76In Stock
1,700Expected 2027-01-20
$1.80
$1.38
$0.963
$0.816
View
Min.: 1
Mult.: 1
Red 635 nm 12.3 mcd Through Hole 60 deg Tinted 20 mA 2 V 550 Bulk
Dialight LED Circuit Board Indicators HI EFF YELLOW DIFF
Datasheet
26In Stock
11,700On Order
$2.04
$1.45
$1.02
$0.878
View
Min.: 1
Mult.: 1
Yellow 585 nm Through Hole 50 deg Tinted 10 mA 2.1 V 550 Bulk
Dialight LED Circuit Board Indicators CBI 5MM RGB W 4 LEADS
Datasheet
813In Stock
$3.04
$1.80
$1.66
$1.44
View
Min.: 1
Mult.: 1
Blue, Green, Red 3 mm 470 nm, 525 nm, 634 nm 2500 mcd, 3200 mcd, 6000 mcd 30 mA 2.7 V Bulk
Dialight LED Circuit Board Indicators HI EFF GREEN DIFF
Datasheet
7,072On Order
$2.15
$1.47
$1.09
$0.78
View
Min.: 1
Mult.: 1
Green 563 nm 16 mcd Through Hole 45 deg Tinted 10 mA 2.1 V 551 Bulk
Dialight LED Circuit Board Indicators HI EFF RED DIFFUSED
Datasheet
1,408In Stock
4,600Expected 2026-12-16
$2.04
$1.45
$1.05
$0.924
View
Min.: 1
Mult.: 1
Red 650 nm 10 mcd Through Hole 45 deg Tinted 10 mA 2 V 551 Bulk
Dialight LED Circuit Board Indicators RED DIFFUSED LOW CURRENT
Datasheet
160In Stock
7,000On Order
$2.33
$1.63
$1.19
$1.04
View
Min.: 1
Mult.: 1
Red 635 nm 1.6 mcd Through Hole 60 deg Tinted 2 mA 1.7 V 551 Bulk
Dialight LED Circuit Board Indicators GREEN DIFFUSED LOW CURRENT
Datasheet
33In Stock
1,500Expected 2026-11-04
$2.46
$1.74
$1.20
$1.07
View
Min.: 1
Mult.: 1
Green 565 nm 1.6 mcd Through Hole 60 deg 2 mA 1.9 V 551 Bulk
Dialight LED Circuit Board Indicators RED/GREEN DIFFUSED
Datasheet
485In Stock
5,300Expected 2026-12-16
$3.23
$2.30
$1.74
$1.50
View
Min.: 1
Mult.: 1
Red, Green 3 mm 635 nm, 565 nm 4.7 mcd, 10 mcd Through Hole 50 deg Tinted 10 mA 2 V, 2.1 V 551 Bulk
Dialight LED Circuit Board Indicators YELLOW/GREEN DIFF
Datasheet
58In Stock
4,400On Order
$2.75
$1.87
$1.42
$1.22
View
Min.: 1
Mult.: 1
Green, Yellow 3 mm 585 nm, 565 nm 4.3 mcd, 6.3 mcd Through Hole 80 deg Tinted 10 mA 2.1 V, 2.1 V 551 Bulk
Dialight LED Circuit Board Indicators CBI 3MM RG W 3 LEADS
Datasheet
29In Stock
$2.03
$1.43
$0.976
$0.877
$0.785
Min.: 1
Mult.: 1
Green, Red 3 mm 630 nm, 565 nm 75 deg 30 mA 2.6 V Bulk
Dialight LED Circuit Board Indicators YELLOW DIFFUSED
Datasheet
17In Stock
1,000Expected 2027-01-20
$3.07
$2.19
$1.61
$1.39
View
Min.: 1
Mult.: 1
Yellow 2 mm 583 nm 2 mcd Through Hole 40 deg Tinted 20 mA 2.2 V 555 Bulk
Dialight LED Circuit Board Indicators YELLOW DIFFUSED 5 VOLT
Datasheet
305In Stock
1,000Expected 2027-04-14
$2.98
$2.19
$1.64
$1.41
$1.27
Min.: 1
Mult.: 1
Yellow 2 mm 583 nm 2.1 mcd Through Hole 40 deg Tinted 20 mA 5 V 555 Bulk
Dialight LED Circuit Board Indicators RED DIFFUSED 5 VOLT
Datasheet
752In Stock
$3.56
$2.58
$1.83
$1.74
View
Min.: 1
Mult.: 1
Red 2 mm 650 nm 0.9 mcd Through Hole 40 deg Tinted 20 mA 555 Bulk
Dialight LED Circuit Board Indicators RED DIFFUSED 24 VOLTS
Datasheet
1,025In Stock
$3.31
$2.58
$1.81
$1.61
View
Min.: 1
Mult.: 1
Red 2 mm 650 nm 0.9 mcd Through Hole 40 deg Tinted 20 mA 555 Bulk
Dialight LED Circuit Board Indicators RED DIFFUSED
Datasheet
135In Stock
400Expected 2027-05-19
$7.98
$5.64
$4.46
$3.89
View
Min.: 1
Mult.: 1
Red 650 nm 1.2 mcd Through Hole 40 deg Tinted 20 mA 555 Bulk
Dialight LED Circuit Board Indicators RED DIFFUSED 5 VOLT
Datasheet
309In Stock
$7.04
$5.92
$4.55
$4.10
View
Min.: 1
Mult.: 1
Red 650 nm 0.9 mcd Through Hole 40 deg Tinted 3 mA 5 V 555 Bulk
Dialight LED Circuit Board Indicators GREEN DIFFUSED
Datasheet
2In Stock
4,500Expected 2027-01-20
$1.80
$1.27
$0.906
$0.804
View
Min.: 1
Mult.: 1
Green 565 nm 12.3 mcd Through Hole 60 deg Tinted 20 mA 2.1 V 550 Bulk
Dialight LED Circuit Board Indicators RED/GREEN DIFFUSED
Datasheet
9,094On Order
$3.34
$2.38
$1.83
$1.58
$1.51
Min.: 1
Mult.: 1
Red, Green 5 mm 660 nm, 565 nm 90 mcd, 40 mcd Through Hole 60 deg Tinted 20 mA 1.8 V, 2.1 V 550 Bulk