ROHM LD-201

LD-201 Series
LED displays
Flat displays
LD-201 Series
!External Dimensions (Units : mm)
The LD-201 series were designed in response to the
need for small, flat displays. These are single-chip, flat
displays with high luminance.
!Features
1) Planar emission from a single chip.
2) Thin outer casing, multiple units can be coupled
together.
3) Long leads are suitable for a wide range of mounting
options.
3.18
3.68±0.1
5.58
3.8±0.1
6.0±0.1
1.7
0.38
1.7
6.73±0.1
5.7±0.1
Cathode mark
6.3±0.1
Pin No.1
2
0.6
0.5
2.5±1.0
0.5
24.0Min.
0.6
Pin No.1 2
(2.5)
Cathode cut
Tolerances are ±0.3 unless otherwise noted :
!Selection guide
Emitting color
Type
Red
Orange
Yellow
Green
LD-201VR
LD-201DU ∗
LD-201YY ∗
LD-201MG
∗ Order-based production.
!Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Green LD-201MG
Unit
Power dissipation
PD
60
60
60
75
mW
Forward current
Red
LD-201VR Orange LD-201DU Yellow LD-201YY
IF
20
20
20
25
mA
Peak forward
current
IFP
60∗
60∗
60∗
60∗
mA
Reverse voltage
VR
3
3
3
3
V
Operating
temperature
Topr
−25∼+75
˚C
Storage
temperature
Tstg
−30∼+85
˚C
∗ Pulse width 1ms duty 1 / 5
LD-201 Series
LED displays
!Electrical and optical characteristics (Ta=25°C)
Parameter
Red
Symbol Conditions
Orange
Yellow
Green
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
Unit
Forward voltage
VF
IF=10mA
−
2.0
2.8
−
2.0
2.8
−
2.1
2.8
−
2.1
2.8
V
Reverse current
IR
VR=3V
−
−
10
−
−
10
−
−
10
−
−
10
µA
Peak wavelength
λP
IF=10mA
−
650
−
−
610
−
−
585
−
−
563
−
nm
Spectral line half
width
∆λ
IF=10mA
−
40
−
−
40
−
−
40
−
−
40
−
nm
Electrical and optical are guaranteed values per element.
!Luminous intensity vs. wavelength
Axial Luminous Intensity
1.0
Green
Yellow
0.8
Orange
Red
0.6
0.4
0.2
0
500
550
600
650
700
750
Wavelength : λP (nm)
!Luminous intensity
Type
Min.
Typ.
Max.
Unit
Red
LD-201VR
2.2
6.3
−
mcd
Orange
LD-201DU
2.2
6.3
−
mcd
Yellow
LD-201YY
1.4
4.0
−
mcd
Green
LD-201MG
3.6
10
−
mcd
Color
Note1: Measured at IF = 10mA
!Operation notes
When forming leads, the bend should be at least 2mm from the base of the package. Solder after forming the leads, and
ensure that the inside of the LED is not subjected to mechanical stress while it is hot.