LED Circuit Board Indicators

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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.

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Part #

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLT

555-3303F
Dialight
1: S/10.98
3,488In Stock
1,600Expected 11/17/2026

Mfr. Part #
555-3303F

Mouser Part #
645-555-3303F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLT

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Datasheet

3,488In Stock

1,600Expected 11/17/2026

S/10.98

S/5.25

S/4.28

S/4.05

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 RED DIFFUSED 24 VOLTS

555-3008F
Dialight
1: S/7.24
1,125In Stock

Mfr. Part #
555-3008F

Mouser Part #
645-555-3008F

Dialight

LED Circuit Board Indicators RED DIFFUSED 24 VOLTS

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Datasheet

1,125In Stock

S/7.24

S/5.45

S/4.32

S/4.01

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 HI EFF YELLOW DIFF

551-0309F
Dialight
1: S/5.53
3,968In Stock

Mfr. Part #
551-0309F

Mouser Part #
645-551-0309F

Dialight

LED Circuit Board Indicators HI EFF YELLOW DIFF

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Datasheet

3,968In Stock

S/5.53

S/3.01

S/2.93

S/2.49

View

Min.: 1
Mult.: 1

Yellow

6.3 mcd

Through Hole

45 deg

Tinted

10 mA

2.1 V

551

Bulk

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLTS

551-0607F
Dialight
1: S/6.81
4,099In Stock
3,100Expected 1/20/2027

Mfr. Part #
551-0607F

Mouser Part #
645-551-0607F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLTS

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Datasheet

4,099In Stock

3,100Expected 1/20/2027

S/6.81

S/4.87

S/3.66

S/3.15

View

Min.: 1
Mult.: 1

Green

565 nm

19 mcd

Through Hole

60 deg

Tinted

10 mA

5 V

551

Bulk

LED Circuit Board Indicators CBI 3MM BLUE

551-0807F
Dialight
1: S/15.49
1,864In Stock

Mfr. Part #
551-0807F

Mouser Part #
645-551-0807F

Dialight

LED Circuit Board Indicators CBI 3MM BLUE

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Datasheet

1,864In Stock

S/15.49

S/11.33

S/8.84

S/7.79

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

LED Circuit Board Indicators YELLOW DIFFUSED LOW CURRENT

551-1207F
Dialight
1: S/6.03
4,099In Stock

Mfr. Part #
551-1207F

Mouser Part #
645-551-1207F

Dialight

LED Circuit Board Indicators YELLOW DIFFUSED LOW CURRENT

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Datasheet

4,099In Stock

S/6.03

S/4.28

S/3.20

S/2.74

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

555-4303F
Dialight
1: S/21.99
650In Stock

Mfr. Part #
555-4303F

Mouser Part #
645-555-4303F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED 5 VOLT

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Datasheet

650In Stock

S/21.99

S/16.82

S/13.43

S/12.26

S/11.13

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 GREEN DIFFUSED

550-0204F
Dialight
1: S/5.68
399In Stock
1,500Expected 1/20/2027

Mfr. Part #
550-0204F

Mouser Part #
645-550-0204F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED

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Datasheet

399In Stock

1,500Expected 1/20/2027

S/5.68

S/4.05

S/2.40

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 GREEN DIFFUSED

550-0205F
Dialight
1: S/4.75
895In Stock

Mfr. Part #
550-0205F

Mouser Part #
645-550-0205F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED

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Datasheet

895In Stock

S/4.75

S/3.36

S/2.56

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/4.87
132In Stock
6,470On Order

Mfr. Part #
550-0207F

Mouser Part #
645-550-0207F

Dialight

LED Circuit Board Indicators GREEN DIFFUSED

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Datasheet

132In Stock

6,470On Order

S/4.87

S/3.36

S/2.85

S/2.25

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/4.09
1,767In Stock

Mfr. Part #
550-0307F

Mouser Part #
645-550-0307F

Dialight

LED Circuit Board Indicators YELLOW DIFFUSED

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Datasheet

1,767In Stock

S/4.09

S/2.56

S/1.79

S/1.61

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
429In Stock
1,400Expected 1/20/2027

Mfr. Part #
550-0404F

Mouser Part #
645-550-0404F

Dialight

LED Circuit Board Indicators RED DIFFUSED

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Datasheet

429In Stock

1,400Expected 1/20/2027

S/5.68

S/4.05

S/2.71

S/2.42

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/3.97
44In Stock
1,700Expected 1/20/2027

Mfr. Part #
550-0405F

Mouser Part #
645-550-0405F

Dialight

LED Circuit Board Indicators RED DIFFUSED

Learn More

Datasheet

44In Stock

1,700Expected 1/20/2027

S/3.97

S/3.11

S/2.56

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 HI EFF GREEN DIFF

551-0209F
Dialight
1: S/5.53
674In Stock
4,700Expected 12/9/2026

Mfr. Part #
551-0209F

Mouser Part #
645-551-0209F

Dialight

LED Circuit Board Indicators HI EFF GREEN DIFF

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Datasheet

674In Stock

4,700Expected 12/9/2026

S/5.53

S/3.75

S/2.11

S/1.96

View

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 RED DIFFUSED LOW CURRENT

551-1107F
Dialight
1: S/6.03
1,736In Stock
3,400Expected 1/20/2027

Mfr. Part #
551-1107F

Mouser Part #
645-551-1107F

Dialight

LED Circuit Board Indicators RED DIFFUSED LOW CURRENT

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Datasheet

1,736In Stock

3,400Expected 1/20/2027

S/6.03

S/4.24

S/2.89

S/2.67

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
396In Stock
4,900Expected 10/21/2026

Mfr. Part #
551-3009F

Mouser Part #
645-551-3009F

Dialight

LED Circuit Board Indicators RED/GREEN DIFFUSED

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Datasheet

396In Stock

4,900Expected 10/21/2026

S/9.19

S/6.66

S/5.10

S/4.44

S/3.70

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 CBI 3MM RG W 3 LEADS

551-3513F
Dialight
1: S/5.25
34In Stock

Mfr. Part #
551-3513F

Mouser Part #
645-551-3513F

Dialight

LED Circuit Board Indicators CBI 3MM RG W 3 LEADS

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Datasheet

34In 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
463In Stock
1,000Expected 1/20/2027

Mfr. Part #
555-2401F

Mouser Part #
645-555-2401F

Dialight

LED Circuit Board Indicators YELLOW DIFFUSED

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Datasheet

463In Stock

1,000Expected 1/20/2027

S/7.98

S/5.68

S/3.97

S/3.58

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/7.40
1,328In Stock

Mfr. Part #
555-2403F

Mouser Part #
645-555-2403F

Dialight

LED Circuit Board Indicators YELLOW DIFFUSED 5 VOLT

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Datasheet

1,328In Stock

S/7.40

S/5.80

S/4.40

S/3.77

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/9.61
772In Stock

Mfr. Part #
555-3007F

Mouser Part #
645-555-3007F

Dialight

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

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Datasheet

772In Stock

S/9.61

S/6.89

S/4.98

S/4.52

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

555-4001F
Dialight
1: S/20.16
300In Stock

Mfr. Part #
555-4001F

Mouser Part #
645-555-4001F

Dialight

LED Circuit Board Indicators RED DIFFUSED

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Datasheet

300In Stock

S/20.16

S/14.79

S/11.72

S/10.39

View

Min.: 1
Mult.: 1

Red

650 nm

1.2 mcd

Through Hole

40 deg

Tinted

20 mA

555

Bulk

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

555-4007F
Dialight
1: S/18.49
5In Stock
300Expected 9/16/2026

Mfr. Part #
555-4007F

Mouser Part #
645-555-4007F

Dialight

LED Circuit Board Indicators RED DIFFUSED 5 VOLT

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Datasheet

5In Stock

300Expected 9/16/2026

S/18.49

S/15.57

S/11.95

S/10.82

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 HI EFF YELLOW DIFF

550-2307F
Dialight
1: S/4.75
9,959On Order

Mfr. Part #
550-2307F

Mouser Part #
645-550-2307F

Dialight

LED Circuit Board Indicators HI EFF YELLOW DIFF

Learn More

Datasheet

9,959On Order

S/4.75

S/3.45

S/2.46

S/2.30

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/8.80
8,983On Order

Mfr. Part #
550-3007F

Mouser Part #
645-550-3007F

Dialight

LED Circuit Board Indicators RED/GREEN DIFFUSED

Learn More

Datasheet

8,983On Order

S/8.80

S/6.11

S/4.71

S/4.05

S/3.85

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

LED Circuit Board Indicators 5 MMCBI

550-3505F
Dialight
1: S/11.44
3,386On Order

Mfr. Part #
550-3505F

Mouser Part #
645-550-3505F

Dialight

LED Circuit Board Indicators 5 MMCBI

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Datasheet

3,386On Order

S/11.44

S/8.10

S/6.34

S/5.57

S/5.14

Min.: 1
Mult.: 1

Red, Green

5 mm

635 nm, 565 nm

5 mcd, 8 mcd

Through Hole

65 deg

Clear

10 mA

2.1 V, 2.3 V

Bulk

550/551/555 Series LED Circuit Board Indicators

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