VLMR31..

www.vishay.com

Vishay Semiconductors

Rev. 1.5, 24-Sep-2021

2

Document Number: 82419

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 the LED in reverse direction is suitable for a short term application

Notes

(2) In one packing unit IVmax./IVmin.

≤ 1.6

(3) Forward voltage is tested at a current pulse of 10 ms and an accuracy of ± 0.1 V

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

on any one reel.

In order to ensure availability, single wavelength groups will not

be orderable

Note

• Wavelengths are tested at a current pulse duration of 25 ms and

an accuracy of ± 1 nm

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

VLMR31..

PARAMETER

TEST CONDITION

SYMBOL

VALUE

UNIT

Reverse voltage (1)

VR

5V

DC forward current

Tamb

≤ 85 °C

IF

30

mA

Surge forward current

tp

≤ 10 μs

IFSM

0.7

A

Power dissipation

PV

80

mW

Junction temperature

Tj

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)

VLMR31.., AMBER

PARAMETER

TEST CONDITION

PART

SYMBOL

MIN.

TYP.

MAX.

UNIT

Luminous intensity (1)

IF = 20 mA

VLMR31Q2T1

IV

90

160

355

mcd

Dominant wavelength

IF = 20 mA

VLMR31Q2T1

λd

612

618

624

nm

Peak wavelength

IF = 20 mA

λp

-

624

-

nm

Angle of half intensity

IF = 20 mA

ϕ

-± 60

-

°

Forward voltage (2)

IF = 20 mA

VF

1.822.4

V

Reverse voltage

IR = 10 μA

VR

5-

-

V

Junction capacitance

VR = 0 V, f = 1 MHz

Cj

-15

-

pF

LUMINOUS INTENSITY CLASSIFICATION

GROUP

LIGHT INTENSITY (mcd)

STANDARD

OPTIONAL

MIN.

MAX.

Q

171

90

2

90

112

R

1

112

140

2

140

180

S

1

180

224

2

224

280

T

1

280

355

2

355

450

CROSSING TABLE

VISHAY

OSRAM

VLMR31Q2T1

LA T676-Q2T1-24

COLOR CLASSIFICATION

GROUP

AMBER

DOM. WAVELENGTH (nm)

MIN.

MAX.

2

612

616

3

616

620

4

620

624