VLRK31R1S2 datasheet(2/8 Pages) TO-GRACE

2 / 8 page

VLRK31R1S2, VLRK31Q1R2

www.vishay.com

Vishay Semiconductors

Rev. 1.5, 13-Aug-2018

Document Number: 81778

For technical questions, contact: LED@vishay.com

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

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Note

(1) Driving LED in reverse direction is suitable for short term application

Notes

(1) In one packing unit IVmax./IVmin. > 1.6

(2) Forward voltages are tested at a current pulse duration of 1 ms and a tolerance of ± 0.05 V

(3) Wavelengths are tested at a current pulse duration of 25 ms and an accuracy of ± 1 nm

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

ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)

VLRK31R1S2, VLRK31Q1R2

PARAMETER

TEST CONDITION

SYMBOL

VALUE

UNIT

Reverse voltage (1)

DC forward current

Tamb

≤ 85 °C

Surge forward current

≤ 10 μs

IFSM

Power dissipation

Junction temperature

+125

°C

Operating temperature range

Tamb

-40 to +100

°C

Storage temperature range

Tstg

-40 to +100

°C

Thermal resistance junction-to-ambient

Mounted on PC board (pad size > 16 mm2)RthJA

400

K/W

OPTICAL AND ELECTRICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)

VLRK31R1S2, VLRK31Q1R2, YELLOW

PARAMETER

TEST CONDITION

PART

SYMBOL

MIN.

TYP.

MAX.

UNIT

Luminous intensity (1)

IF = 20 mA

VLRK31R1S2

112

285

mcd

VLRK31Q1R2

180

mcd

Dominant wavelength (3)

IF = 20 mA

λd

620

630

635

Peak wavelength

IF = 20 mA

λp

643

Angle of half intensity

IF = 20 mA

-± 60

Forward voltage (2)

IF = 20 mA

-2.1

2.3

Reverse voltage

IR = 10 μA

Junction capacitance

VR = 0 V, f = 1 MHz

-15

LUMINOUS INTENSITY CLASSIFICATION

GROUP

LUMINOUS INTENSITY IV (mcd)

STANDARD

OPTIONAL

MIN.

MAX.

171

112

140

180

224

285

CROSSING TABLE

VISHAY

OSRAM

VLRK31R1S2

LST776-R1S2

VLRK31Q1R2

LST776-Q1R2

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