ROHM LA-501VN, LA-501VD, LA-501MD, LA-501DN, LA-501DD Datasheet

LA-501DN Series

LED displays

High efficiency, single-digit numeric
displays

LA-501DN Series

External dimensions

The LA-501DN series were designed to meet
the need for 13mm single-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 single-digit
displays with a character height of 13.0mm.

!!!!

(Units : mm)

12.5
10°

1.25

13.0

17.5
(15.24)

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.

Selection guide

!!!!

Emitting color

Common
Anode
Cathode

∗ Order-based production.

Pin assignments

!!!!

10 9 786

+ + + + +

fb

e

+ + + + +

Pin No.

12345

g

d

a

c

Red

LA-501VD

LA-501VN

D.P

Orange

LA-501DD

LA-501DN

Pin No.

1
2
3
4
5
6
7
8
9

10

Green

∗

LA-501MD

∗

LA-501MN

Function

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

(2.54)

1.25

7.4

0.5

(10.16)

φ1.25

7.0

3.5Min.

Tolerances are ±0.2 unless otherwise noted:

0.25

LED displays

Internal circuit schematic

!!!!

COM

3,8

LA-501DN Series

(example of common cathode)

a7b6c4d2e1f

Absolute maximum ratings

!

Parameter

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

!!!!

Parameter

Forward voltage V
Reverse current I
Peak wavelength
Spectral line half width

Not designed for radiation resistance.

D.P

9g10

5

(Ta = 25°C)

Symbol

D

P

PD / seg

F

I

I

FP

V

R

Topr
Tstg

Symbol

λ

∆λ

F

R

P

Red

LA-501VD / VN

480

60
20
60

5

(Ta = 25°C)

Conditions

I

F

= 10mA

V

R

= 5V

I

F

= 10mA

I

F

= 10mA

∗

Min.

−

−

−

−

Orange

LA-501DD / DN

480

60
20

∗

60

5

−25~+75

−30~+85

Red
Typ.

Max.

2.0

2.8

−

100

650

−

40

−

Green

LA-501MD / MN

480

60
20

60

5

Orange

Min.

Typ.

−

2.0

−

−

−

610

−

40

∗

Max.

2.8

100

−

−

Min.

−

−

−

−

Unit

mW
mW

mA
mA

V

°C
°C

Green

Typ.

2.1

−

563

40

Max.

2.8

100

−

−

Unit

V
µA
nm
nm

Luminous intensity

!!!!

Red

Orange

Green

Note : Measured at IF = 10 mA

λ

650

610

563

P

Type
LA-501VD
LA-501VN
LA-501DD
LA-501DN
LA-501MD
LA-501MN

Min.

5.6

5.6

5.6

Typ.16Max.

16 −

16 −

UnitColor

mcd

−

mcd

mcd