Telefunken TLDR4900 Datasheet

TLDR4900

Vishay Telefunken

High Intensity LED in ø 3 mm Clear Package

Color Type Technology Angle of Half Intensity

Double hetero red TLDR4900 GaAlAs on GaAs 16

Description

This LED contains the double heterojunction (DH)
GaAlAs on GaAs technology.
This deep red LED can be utilized over a wide range
of drive current. It can be DC or pulse driven to achieve
desired light output.
The device is available in a clear 3 mm package.

Features

D

Exceptional brightness

D

Very high intensity even at low drive currents

D

Small viewing angle

D

Low forward voltage

D

3 mm (T–1) untinted non-diffused package

D

Deep red color

D

Categorized for luminous intensity

D

Outstanding material efficiency

96 11676

±

ö

°

Applications

Bright ambient lighting conditions
Battery powered equipment
Indoor and outdoor information displays
Portable equipment
Telecommunication indicators
General use

Document Number 83002
Rev. A1, 04-Feb-99

www.vishay .de • FaxBack [phone]

1 (5)

TLDR4900

y

Vishay Telefunken

Absolute Maximum Ratings

T

= 25_C, unless otherwise specified

amb

TLDR4900

Parameter Test Conditions Symbol Value Unit
Reverse voltage V
DC forward current I
Surge forward current tp ≤ 10 ms I
Power dissipation T
Junction temperature T
Operating temperature range T
Storage temperature range T
Soldering temperature t ≤ 5 s, 2 mm from body T
Thermal resistance junction/ambient R

Optical and Electrical Characteristics

T

= 25_C, unless otherwise specified

amb

Double hetero red (TLDR4900 )

≤ 60°C P

amb

R

F

FSM

V

amb

stg

sd

thJA

6 V

50 mA

1 A

100 mW

j

100
–20 to +100
–55 to +100

260

°

C

°

C

°

C

°

C

400 K/W

Parameter Test Conditions T ype Symbol Min Typ Max Unit

Luminous intensity IF = 20 mA I

IF = 1 mA I
Dominant wavelength IF = 20 mA
Peak wavelength IF = 20 mA
Spectral line half width IF = 20 mA

l
l

Dl

V
V

d
p

63 200 mcd

8 mcd
648 nm
650 nm

20 nm
Angle of half intensity IF = 20 mA ϕ ±16 deg
Forward voltage IF = 20 mA V
Reverse current VR = 6 V I
Junction capacitance VR = 0, f = 1 MHz C

Typical Characteristics (T

125

100

75

50

V

25

P – Power Dissipation ( mW )

= 25_C, unless otherwise specified)

amb

60

50

40

30

20

F

I – Forward Current ( mA )

10

F

R

j

1.8 2.2 V
10

m

30 pF

A

0

020406080

T

95 10904

Figure 1 Power Dissipation vs. Ambient Temperature

www.vishay .de • FaxBack [phone] Document Number 83002
2 (5)

– Ambient Temperature ( °C )

amb

100

0

020406080

T

95 10095

Figure 2 Forward Current vs. Ambient Temperature

– Ambient Temperature ( °C )

amb

Rev. A1, 04-Feb-99

100