ROHM LB-403VF1, LB-403MF1, LB-403F1 Datasheet

LB-403F1 Series

LED displays

High efficiency, three-digit numeric
displays

LB-403F1 Series

The LB-403 F1 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 three-digit
displays with a character height of 10 mm.

!!!!

Features

1) Height of character : 10mm.

2) Common anode configuration 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.

!!!!

External dimensions

(Units : mm)

5.5

φ0.5

(12.5)

16.0

1.0

10.0

26.0±0.4

10°

(22.86)

(2.54)

1.0

φ0.5

8.03.0±0.5

6.75 9.0

Tolerances are ±0.3 unless otherwise noted:

!!!!

Selection guide

Red Green

LB-403VF1 LB-403MF1

Anode

Common

Emitting color

!!!!

Pin assignments

Digit 2Digit 1

a2

g2

d2

f2 b2

c2

b1

c1 e2

Digit 3

a3

g3

d3

f3 b3

c3e3

Pin No.

1 2 3 4 5 6 7 8 9 10

20 19 18 17 16 15 14 13 12 11

+ + + + + + + + + +

+ + + + + + + + + +

Segment "c1"
Segment "e2"
Segment "d2"
Segment "g2"
Segment "c2"
Segment "e3"
Segment "d3"
Segment "g3"
Segment "c3"
NC

1
2
3
4
5
6
7
8
9

10

FunctionPin No.

Segment "b3"
Segment "a3"
Segment "f3"
Digit 3 Common
Digit 2 Common
Segment "b2"
Segment "a2"
Segment "f2"
Segment "b1"
Digit 1 Common

11
12
13
14
15
16
17
18
19
20

FunctionPin No.

LB-403F1 Series

LED displays

!!!!

Internal circuit schematic

(example of common anode)

Dig.1

b119c1

1

COM

a217b216c25d23e22f2

18

g

2

4

a3
12b311c39d37e36f313

g

3

8

20

Dig.2 COM

15

Dig.3 COM

14

!!!!

Absolute maximum ratings

(Ta = 25°C)

Parameter Symbol

Red

Unit

LB-403VF1 LB-403MF1

640

40
15
60

∗

3

mW
mW

mA
mA

V

°C
°C

P

D

PD / seg

I

F

I

FP

V

R

Topr

Tstg

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

Green

640

40
15
60

∗

3

−25~+75

−30~+85

∗

Pulse width 1ms duty 1 / 5

!!!!

Electrical and optical characteristics

(Ta = 25°C)

Parameter Symbol

Red Green

UnitConditions

Min. Typ. Max.

V

µA

nm
nm

2.82.0

650

40

100

−

−

−

−

−−

−

Min. Typ. Max.

2.82.1

563

40

100

−

−−

−

−

−−

I

F

= 10mA

V

R

= 3V

I

F

= 10mA

I

F

= 10mA

V

F

I

R

λ

P

∆λ

Forward voltage
Reverse current
Peak wavelength
Spectral line half

width

Not designed for radiation resistance.

!!!!

Luminous intensity

Unit

Min. Typ. Max.

Color

λ

P

Type
Red
Green

650
563

LB-403VF1
LB-403MF1

2.2 6.3

−

mcd

5.6 16

−

mcd

Note : Measured at IF = 10mA