VLRK31..

www.vishay.com

Vishay Semiconductors

Rev. 1.4, 22-May-13

2

Document Number: 81778

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Note

Notes

Note

• Luminous intensity is tested at a current pulse duration of 25 ms

and an accuracy of ± 11 %.



The above type numbers represent the order groups which

include only a few brightness groups. Only one group will be

shipped on each reel (there will be no mixing of two groups on

each reel).



In order to ensure availability, single brightness groups will not

be orderable. In a similar manner for colors where wavelength

groups are measured and binned, single wavelength groups will

be shipped in any one reel.



In order to ensure availability, single wavelength groups will not

be orderable.

VLRK31..

PARAMETER

TEST CONDITION

SYMBOL

VALUE

UNIT

5V

DC forward current

30

mA

Surge forward current

1A

Power dissipation

75

mW

Junction temperature

+ 125

°C

Operating temperature range

- 40 to + 100

°C

Storage temperature range

- 40 to + 100

°C

Thermal resistance junction/ambient

400

K/W

VLRE31.., YELLOW

PARAMETER

TEST CONDITION

PART

SYMBOL

MIN.

TYP.

MAX.

UNIT

VLRK31R1S2

112

-

285

mcd

VLRK31Q1R2

71

-

180

mcd

VLRK31R1R2

112

-

180

mcd

VLRK31Q2R1

90

-

140

mcd



d

620

630

635

nm

Peak wavelength



p

-

643

-

nm

Angle of half intensity



-± 60

-

deg

-2.1

2.3

V

Reverse voltage

5-

-

V

Junction capacitance

-15-

pF

LUMINOUS INTENSITY CLASSIFICATION

GROUP

STANDARD

OPTIONAL

MIN.

MAX.

Q

171

90

2

90

112

R

1

112

140

2

140

180

S

1

180

224

2

224

285

CROSSING TABLE

VISHAY

OSRAM

VLRK31R1S2

LST776-R1S2

VLRK31Q1R2

LST776-Q1R2

VLRK31R1R2

LST776-R1R2

VLRK31Q2R1

LST776-Q2R1