LED Circuit Board Indicators

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 34

Applied Filters:

Illumination Color

LED Size

Wavelength

Luminous Intensity

Mounting Type

Viewing Angle

Lens Color/Style

If - Forward Current

Vf - Forward Voltage

Series

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

LED Circuit Board Indicators CBI 3MM BLUE

551-0807F
Dialight
1: S/15.30
2,700In Stock

Mfr. Part #
551-0807F

Mouser Part #
645-551-0807F

Dialight

LED Circuit Board Indicators CBI 3MM BLUE

Learn More

Datasheet

2,700In Stock

S/15.30

S/10.08

S/7.36

S/6.85

Min.: 1
Mult.: 1

Blue

3 mm

428 nm

12 mcd

Through Hole

70 deg

Colorless, Diffused

10 mA

3.5 V

551

Bulk

LED Circuit Board Indicators RED/GREEN DIFFUSED 3 LEAD

550-3509F
Dialight
1: S/11.44
1,246In Stock
1,100Expected 10/28/2026

Mfr. Part #
550-3509F

Mouser Part #
645-550-3509F

Dialight

LED Circuit Board Indicators RED/GREEN DIFFUSED 3 LEAD

Learn More

Datasheet

1,246In Stock

1,100Expected 10/28/2026

S/11.44

S/8.29

S/6.38

S/5.57

View

Min.: 1
Mult.: 1

Red, Green

5 mm

5 mcd, 8 mcd

Through Hole

65 deg

Tinted, Diffused

10 mA

550

Bulk

LED Circuit Board Indicators YELLOW DIFFUSED LOW CURRENT

551-1207F
Dialight
1: S/6.03
4,105In Stock

Mfr. Part #
551-1207F

Mouser Part #
645-551-1207F

Dialight

LED Circuit Board Indicators YELLOW DIFFUSED LOW CURRENT

Learn More

Datasheet

4,105In Stock

S/6.03

S/4.28

S/2.98

S/2.64

View

Min.: 1
Mult.: 1

Yellow

1.6 mcd

Through Hole

60 deg

Tinted

2 mA

1.8 V

551

Bulk

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLT

555-3303F
Dialight
1: S/10.98
3,800In Stock
1,600On Order

Mfr. Part #
555-3303F

Mouser Part #
645-555-3303F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLT

Learn More

Datasheet

3,800In Stock

1,600On Order

S/10.98

S/7.86

S/5.99

S/5.10

S/4.67

Min.: 1
Mult.: 1

Green

2 mm

565 nm

2.5 mcd

Through Hole

40 deg

Tinted

20 mA

555

Bulk

LED Circuit Board Indicators GREEN DIFFUSED

550-0205F
Dialight
1: S/4.87
1,010In Stock

Mfr. Part #
550-0205F

Mouser Part #
645-550-0205F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED

Learn More

Datasheet

1,010In Stock

S/4.87

S/3.19

S/2.26

S/2.13

View

Min.: 1
Mult.: 1

Green

565 nm

12.3 mcd

Through Hole

60 deg

Tinted

20 mA

2.1 V

550

Bulk

LED Circuit Board Indicators GREEN DIFFUSED

550-0207F
Dialight
1: S/4.79
137In Stock
6,600On Order

Mfr. Part #
550-0207F

Mouser Part #
645-550-0207F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED

Learn More

Datasheet

137In Stock

6,600On Order

S/4.79

S/3.36

S/2.50

S/2.22

View

Min.: 1
Mult.: 1

Green

565 nm

12.3 mcd

Through Hole

60 deg

Tinted

20 mA

2.1 V

550

Bulk

LED Circuit Board Indicators YELLOW DIFFUSED

550-0307F
Dialight
1: S/3.78
1,791In Stock

Mfr. Part #
550-0307F

Mouser Part #
645-550-0307F

Dialight

LED Circuit Board Indicators YELLOW DIFFUSED

Learn More

Datasheet

1,791In Stock

S/3.78

S/2.67

S/1.63

S/1.55

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

LED Circuit Board Indicators RED DIFFUSED

550-0404F
Dialight
1: S/5.68
533In Stock
1,400Expected 11/23/2026

Mfr. Part #
550-0404F

Mouser Part #
645-550-0404F

Dialight

LED Circuit Board Indicators RED DIFFUSED

Learn More

Datasheet

533In Stock

1,400Expected 11/23/2026

S/5.68

S/4.05

S/2.55

S/2.38

View

Min.: 1
Mult.: 1

Red

635 nm

12.3 mcd

Through Hole

60 deg

Tinted

20 mA

2 V

550

Bulk

LED Circuit Board Indicators RED DIFFUSED

550-0405F
Dialight
1: S/4.16
349In Stock
1,700Expected 11/24/2026

Mfr. Part #
550-0405F

Mouser Part #
645-550-0405F

Dialight

LED Circuit Board Indicators RED DIFFUSED

Learn More

Datasheet

349In Stock

1,700Expected 11/24/2026

S/4.16

S/3.12

S/2.50

S/2.18

View

Min.: 1
Mult.: 1

Red

635 nm

12.3 mcd

Through Hole

60 deg

Tinted

20 mA

2 V

550

Bulk

LED Circuit Board Indicators CBI 5MM RGB W 4 LEADS

550-4013F
Dialight
1: S/8.21
451In Stock
1,800Expected 9/16/2026

Mfr. Part #
550-4013F

Mouser Part #
645-550-4013F

Dialight

LED Circuit Board Indicators CBI 5MM RGB W 4 LEADS

Learn More

Datasheet

451In Stock

1,800Expected 9/16/2026

S/8.21

S/4.87

S/4.48

S/3.81

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

LED Circuit Board Indicators HI EFF GREEN DIFF

551-0209F
Dialight
1: S/5.53
2,575In Stock
4,700Expected 11/16/2026

Mfr. Part #
551-0209F

Mouser Part #
645-551-0209F

Dialight

LED Circuit Board Indicators HI EFF GREEN DIFF

Learn More

Datasheet

2,575In Stock

4,700Expected 11/16/2026

S/5.53

S/3.56

S/1.83

S/1.78

S/1.75

Min.: 1
Mult.: 1

Green

563 nm

16 mcd

Through Hole

45 deg

Tinted

10 mA

2.1 V

551

Bulk

LED Circuit Board Indicators HI EFF RED DIFFUSED

551-0409F
Dialight
1: S/5.64
766In Stock
1,500Expected 10/28/2026

Mfr. Part #
551-0409F

Mouser Part #
645-551-0409F

Dialight

LED Circuit Board Indicators HI EFF RED DIFFUSED

Learn More

Datasheet

766In Stock

1,500Expected 10/28/2026

S/5.64

S/4.01

S/3.00

S/2.55

View

Min.: 1
Mult.: 1

Red

650 nm

10 mcd

Through Hole

45 deg

Tinted

10 mA

2 V

551

Bulk

LED Circuit Board Indicators RED DIFFUSED LOW CURRENT

551-1107F
Dialight
1: S/6.03
2,500In Stock
3,400Expected 12/9/2026

Mfr. Part #
551-1107F

Mouser Part #
645-551-1107F

Dialight

LED Circuit Board Indicators RED DIFFUSED LOW CURRENT

Learn More

Datasheet

2,500In Stock

3,400Expected 12/9/2026

S/6.03

S/4.24

S/2.67

S/2.44

View

Min.: 1
Mult.: 1

Red

635 nm

1.6 mcd

Through Hole

60 deg

Tinted

2 mA

1.7 V

551

Bulk

LED Circuit Board Indicators RED/GREEN DIFFUSED

551-3009F
Dialight
1: S/9.19
6,379On Order

Mfr. Part #
551-3009F

Mouser Part #
645-551-3009F

Dialight

LED Circuit Board Indicators RED/GREEN DIFFUSED

Learn More

Datasheet

6,379On Order

S/9.19

S/6.15

S/4.48

S/3.83

View

Min.: 1
Mult.: 1

Red, Green

4.7 mcd, 10 mcd

Through Hole

50 deg

Tinted

10 mA

2 V

551

Bulk

LED Circuit Board Indicators YELLOW/GREEN DIFF

551-3107F
Dialight
1: S/7.08
198In Stock
2,800On Order

Mfr. Part #
551-3107F

Mouser Part #
645-551-3107F

Dialight

LED Circuit Board Indicators YELLOW/GREEN DIFF

Learn More

Datasheet

198In Stock

2,800On Order

S/7.08

S/4.71

S/3.36

S/2.97

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

LED Circuit Board Indicators CBI 3MM RG W 3 LEADS

551-3513F
Dialight
1: S/5.25
91In Stock

Mfr. Part #
551-3513F

Mouser Part #
645-551-3513F

Dialight

LED Circuit Board Indicators CBI 3MM RG W 3 LEADS

Learn More

Datasheet

91In Stock

S/5.25

S/3.71

S/2.49

S/2.28

View

Min.: 1
Mult.: 1

Green, Red

3 mm

630 nm, 565 nm

75 deg

30 mA

2.6 V

Bulk

LED Circuit Board Indicators YELLOW DIFFUSED

555-2401F
Dialight
1: S/7.98
698In Stock

Mfr. Part #
555-2401F

Mouser Part #
645-555-2401F

Dialight

LED Circuit Board Indicators YELLOW DIFFUSED

Learn More

Datasheet

698In Stock

S/7.98

S/5.68

S/4.28

S/3.71

View

Min.: 1
Mult.: 1

Yellow

2 mm

583 nm

2 mcd

Through Hole

40 deg

Tinted

20 mA

2.2 V

555

Bulk

LED Circuit Board Indicators YELLOW DIFFUSED 5 VOLT

555-2403F
Dialight
1: S/5.96
128In Stock
2,200On Order

Mfr. Part #
555-2403F

Mouser Part #
645-555-2403F

Dialight

LED Circuit Board Indicators YELLOW DIFFUSED 5 VOLT

Learn More

Datasheet

128In Stock

2,200On Order

S/5.96

S/5.80

S/4.40

S/3.78

View

Min.: 1
Mult.: 1

Yellow

2 mm

583 nm

2.1 mcd

Through Hole

40 deg

Tinted

20 mA

5 V

555

Bulk

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

555-3007F
Dialight
1: S/9.46
772In Stock

Mfr. Part #
555-3007F

Mouser Part #
645-555-3007F

Dialight

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

Learn More

Datasheet

772In Stock

S/9.46

S/6.27

S/4.71

S/4.36

View

Min.: 1
Mult.: 1

Red

2 mm

650 nm

0.9 mcd

Through Hole

40 deg

Tinted

20 mA

555

Bulk

LED Circuit Board Indicators RED DIFFUSED 24 VOLTS

555-3008F
Dialight
1: S/8.95
1,125In Stock

Mfr. Part #
555-3008F

Mouser Part #
645-555-3008F

Dialight

LED Circuit Board Indicators RED DIFFUSED 24 VOLTS

Learn More

Datasheet

1,125In Stock

S/8.95

S/6.42

S/4.24

S/4.09

View

Min.: 1
Mult.: 1

Red

2 mm

650 nm

0.9 mcd

Through Hole

40 deg

Tinted

20 mA

555

Bulk

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

555-4003F
Dialight
1: S/21.99
237In Stock

Mfr. Part #
555-4003F

Mouser Part #
645-555-4003F

Dialight

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

Learn More

Datasheet

237In Stock

S/21.99

S/16.43

S/11.83

S/11.13

View

Min.: 1
Mult.: 1

Red

650 nm

1.9 mcd

Through Hole

40 deg

Tinted

6 mA

5 V

555

Bulk

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

555-4007F
Dialight
1: S/17.44
9In Stock
300Expected 9/16/2026

Mfr. Part #
555-4007F

Mouser Part #
645-555-4007F

Dialight

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

Learn More

Datasheet

9In Stock

300Expected 9/16/2026

S/17.44

S/14.83

S/11.76

S/10.63

View

Min.: 1
Mult.: 1

Red

650 nm

0.9 mcd

Through Hole

40 deg

Tinted

3 mA

5 V

555

Bulk

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLT

555-4303F
Dialight
1: S/20.90
28In Stock
1,600Expected 7/29/2026

Mfr. Part #
555-4303F

Mouser Part #
645-555-4303F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLT

Learn More

Datasheet

28In Stock

1,600Expected 7/29/2026

S/20.90

S/14.79

S/12.49

S/11.76

View

Min.: 1
Mult.: 1

Green

2 mm

583 nm

2.5 mcd

Through Hole

40 deg

Tinted

4.7 mA

5 V

555

Bulk

LED Circuit Board Indicators HI EFF YELLOW DIFF

550-2307F
Dialight
1: S/4.16
10,014On Order

Mfr. Part #
550-2307F

Mouser Part #
645-550-2307F

Dialight

LED Circuit Board Indicators HI EFF YELLOW DIFF

Learn More

Datasheet

10,014On Order

S/4.16

S/2.97

S/2.28

S/2.18

View

Min.: 1
Mult.: 1

Yellow

585 nm

Through Hole

50 deg

Tinted

10 mA

2.1 V

550

Bulk

LED Circuit Board Indicators RED/GREEN DIFFUSED

550-3007F
Dialight
1: S/8.87
79In Stock
4,300On Order

Mfr. Part #
550-3007F

Mouser Part #
645-550-3007F

Dialight

LED Circuit Board Indicators RED/GREEN DIFFUSED

Learn More

Datasheet

79In Stock

4,300On Order

S/8.87

S/5.92

S/4.48

S/4.05

View

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

550/551/555 Series LED Circuit Board Indicators

Customer Service Office

Company

Resources

Support