VLMF31 datasheet(2/8 Pages) VISHAY

2 / 8 page

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Document Number 81330

Rev. 1.1, 06-Sep-07

Vishay Semiconductors

VLMF31..

Note:

1) T

amb = 25 °C unless otherwise specified

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

Note:

1) T

amb = 25 °C unless otherwise specified

2) in one packing unit I

Vmax/IVmin ≤ 1.6

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 RATINGS1) VLMF31..

PARAMETER

TEST CONDITION

SYMBOL

VALUE

UNIT

Reverse voltage2)

DC Forward current

Tamb ≤ 85 °C

Surge forward current

tp ≤ 10 µs

IFSM

0.1

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/

ambient

mounted on PC board

(pad size > 16 mm2)

RthJA

400

K/W

OPTICAL AND ELECTRICAL CHARACTERISTICS1) VLMF31.., SOFT ORANGE

PARAMETER

TEST CONDITION

PART

SYMBOL

MIN

TYP.

MAX

UNIT

Luminous intensity2)

IF = 20 mA

VLMF31Q2T1

355

mcd

VLMF31R1S2

112

280

mcd

VLMF31S1T1

180

355

mcd

Dominant wavelength

IF = 20 mA

598

605

611

Peak wavelength

IF = 20 mA

610

Angle of half intensity

IF = 20 mA

± 60

deg

Forward voltage

IF = 20 mA

2.0

2.6

Reverse voltage

IR = 10 µA

Junction capacitance

VR = 0, f = 1 MHz

LUMINOUS INTENSITY CLASSIFICATION

GROUP

LIGHT INTENSITY (MCD)

STANDARD

OPTIONAL

MIN

MAX

112

140

180

224

280

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.

598

601

600

603

602

605

604

607

606

609

608

611

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