ROHM LB-502VD, LB-502MN, LB-502MD, LB-502DN, LB-502VN Datasheet

LB-502DN Series

LED displays

High efficiency, two-digit numeric displays

LB-502DN Series

External Dimensions

The LB-502DN series were designed to meet the need
for multi-digit numeric displays. These LED numeric
displays use GaAsP on GaP for the emitting material
(with the exception of green) and are housed in an epoxy
resin package. They are two-digit displays with a
character height of 13.0mm.

Features

!

1) Height of character: 13.0mm

2) Common anode and common cathode configurations
are available for each color.

3) High efficiency reflectors are used to achieve a bright,
clear display.

4) The package surface is painted black and the
segments are colored the display color.

!!!!

10˚

0.5

(2.54)

(Units: mm)

25.0

12.7

1.25

13.0

17.5

1.25

2−φ1.25

7.4

7.0

(20.32)

Tolerances are ±0.2 unless otherwise noted :

3.5Min.

0.25

(15.24)

Selection guide

!!!!

Emitting color

Common
Anode
Cathode

LB-502VD

LB-502VN

∗ Order-based production.

Pin assignments

!!!!

18 1011121314151617

+++++++++

a1

f1

g1

e1

d1 d2

Digit 1

+++++++++

Pin No.

198765432

f2

b1

e2

c1

D.P1 D.P2

Red

Digit 2

Orange

LB-502DD ∗

LB-502DN ∗

a2

b2

g2

c2

Green

LB-502MD

LB-502MN

1
2
3
4
5
6
7
8
9

FunctionPin No.

Segment "e1"
Segment "d1"
Segment "c1"
D.P1
Segment "e2"
Segment "d2"
Segment "g2"
Segment "c2"
D.P2

10
11
12
13
14
15
16
17
18

FunctionPin No.

Segment "b2"
Segment "a2"
Segment "f2"
Digit 2 Common
Digit 1 Common
Segment "b1"
Segment "a1"
Segment "g1"
Segment "f1"

LED displays

LB-502DN Series

!!!!

Internal circuit schematic

COM

Dig.1

14

a116b115c13d12e11f1

Absolute maximum ratings

!!!!

g

D.P1

1

17

18

4

Parameter

Power dissipation
Power dissipation
Forward current
Peak forward current
Reverse voltage
Operating temperature
Storage temperature

Pulse width 1ms duty 1 / 5

∗

(example of common cathode)

COM

Dig.2

13

g

a211b210c28d26e25f2

2

D.P2

7

12

9

(Ta=25°C)

Symbol

D

P

PD / seg

F

I

I

FP

V

R

Topr

Tstg

Red

LB-502VD / VN

960

60
20

∗

60

5

Orange

LB-502DD / DN

960

60
20

∗

60

5

−25∼+75

−30∼+85

Green

LB-502MD / MN

960

60
20

∗

60

5

Unit

mW
mW

mA
mA

V

˚C

˚C

Electrical and optical characteristics

!!!!

Parameter

Symbol

Forward voltage V
Reverse current I
Peak wavelength

Spectral line half
width

Not designed for radiation resistance.

Luminous intensity

!!!!

Red

∆λ

λ

650

F

R

λ

P

P

Conditions

I

F

=

10mA

V

R

=5

I

F

=

10mA

I

F

=

10mA

Type
LB-502VD
LB-502VN

Orange

610

LB-502DD
LB-502DN

Green

563

LB-502MD
LB-502MN

Note : Measured at IF=10mA

V

(Ta=25°C)

Red
Typ.

Min.

2.0

−

−

−

650

−

40

−

Min.

5.6

5.6

9.0

Max.

Min.

2.8

100

−

−

Typ.16Max.

16 −

25 −

−

−

−

−

Orange

Typ.

2.0

−

610

40

−

Max.

2.8

100

−

−

UnitColor

mcd

mcd

mcd

Min.

−

−

−

−

Green

Typ.

2.1

−

563

40

Max.

2.8

100

−

−

Unit

V
µA
nm

nm