ROHM LB-202YL, LB-202VL, LB-202VB, LB-202ML, LB-202MB Datasheet

LB-202BL Series

LED displays

High efficiency, two-digit numeric displays

LB-202BL Series

The LB-202BL series are small, two-digit numeric
displays with a character height of 6.4 mm. These
displays can be combined with appropriate displays in
the three-digit LB-203 BL series to form a multi-digit
display with an equal pitch interval between characters.

!

Features

1) Four colors are available: red, orange, yellow, and
green.

2) Common anode and common cathode configurations
are available.

3) Dynamic lighting system to minimize the number of
pins.

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

!!!!

External Dimensions

(Units: mm)

Tolerances are ±0.3 unless otherwise noted :

0.7

3.4

2−φ0.7

0.7

6.4

6.4

15.0

10˚

12.8

−0.2

+0

0.3

(12.2)

0.5

(2.54)

(10.16)

5.5

7.9Min.

+0

−0.2

+0

−0.2

!!!!

Selection guide

Emitting color

Common
Anode
Cathode

Red

LB-202VB
LB-202VL

Orange

LB-202DB ∗
LB-202DL ∗

Yellow

LB-202YB ∗
LA-202YL ∗

∗ Order-based production.

Green

LB-202MB
LB-202ML

!!!!

Pin assignments

Pin No.

Dig.1 Dig.2

109876

+++++

12345

+ ++++

a

g

d

f

b

e

c

a

g

d

f

b

e

c

Digit 1 Common
Segment "e"
Segment "d"
Segment "c"
D.P
Digit 2 Common
Segment "g"
Segment "b"
Segment "a"
Segment "f"

1
2
3
4
5
6
7
8
9

10

FunctionPin No.

LB-202BL Series

LED displays

!!!!

Internal circuit schematic

(example of common cathode)

5

D.P7g10f2e3d4c

8b9

a

Dig.2

6

Dig.1

1

!!!!

Absolute maximum ratings

(Ta=25°C)

Parameter

Symbol

P

D

PD / seg

I

F

I

FP

V

R

Topr

Tstg

Red

LB-202VB / VL

Unit

mW
mW

mA
mA

V

˚C
˚C

640

40
15
60

∗

3

Orange

LB-202DB / DL

640

40
15
60

∗

3

Yellow

LB-202YB / YL

640

40
15
60

∗

3

Green

LB-202MB / ML

640

60
20

60

∗

3

−25∼+75

−30∼+85

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

∗

Pulse width 1ms duty 1 / 5

!!!!

Electrical and optical characteristics

(Ta=25°C)

Not designed for radiation resistance.

Symbol

Unit

Parameter

Red

Spectral line half
width

∆λ

−

nm

Peak wavelength

λ

P

−

nm

Reverse current I

R

−

µA

Forward voltage V

F

Conditions

I

F

=

10mA

I

F

=

10mA

V

R

=

3V

I

F

=

10mA

−

Min.

40

650

−

2.0

Typ.

−

−

100

2.8

Max.

Orange

−

−

−

−

Min.

40

610

−

2.0

Typ.

−

−

100

2.8

Max.

Yellow

−

−

−

−

Min.

40

585

−

2.1

Typ.

−

−

100

2.8

Max.

Green

−

−

−

−

Min.

40

563

−

2.1

Typ.

−

−

100

2.8

Max.

V

!!!!

Luminous intensity

λ

P

UnitColor

Red

650

Type

LB-202VL

LB-202VB

Min.

2.2

Typ.

6.3

Max.

−

mcd

Orange

610

LB-202DL

LB-202DB

2.2

6.3 −

mcd

Yellow

585

LB-202YL

LB-202YB

2.2

6.3 −

mcd

Green

563

LB-202ML

LB-202MB

2.2

6.3 −

mcd

Note : Measured at IF=10mA