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Document Number 81330

Rev. 1.1, 06-Sep-07

Vishay Semiconductors

VLMF31..

Note:

Note:

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.

PARAMETER

TEST CONDITION

SYMBOL

VALUE

UNIT

5V

DC Forward current

30

mA

Surge forward current

0.1

A

Power dissipation

80

mW

Junction temperature

125

°C

Operating temperature range

- 40 to + 100

°C

Storage temperature range

- 40 to + 100

°C

Thermal resistance junction/

ambient

mounted on PC board

400

K/W

PARAMETER

TEST CONDITION

PART

SYMBOL

MIN

TYP.

MAX

UNIT

VLMF31Q2T1

90

355

mcd

VLMF31R1S2

112

280

mcd

VLMF31S1T1

180

355

mcd

Dominant wavelength

λ

d

598

605

611

nm

Peak wavelength

λ

p

610

nm

Angle of half intensity

ϕ

± 60

deg

Forward voltage

2.0

2.6

V

Reverse voltage

5V

Junction capacitance

15

pF

LUMINOUS INTENSITY CLASSIFICATION

GROUP

LIGHT INTENSITY (MCD)

STANDARD

OPTIONAL

MIN

MAX

P

1

45

56

2

56

71

Q

1

71

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

VLMF31Q2T1

LOT676-Q2T1

VLMF31R1S2

LOT676-R1S2

VLMF31S1T1

LOT676-S1T1

COLOR CLASSIFICATION

GROUP

SOFT ORANGE

DOM. WAVELENGTH (NM)

MIN.

MAX.

1

598

601

2

600

603

3

602

605

4

604

607

5

606

609

6

608

611