Rohm LB-402 High efficiency, two-digit numeric display Datasheet

LB-402FP Series
LED displays
High efficiency, two-digit numeric displays
LB-402FP Series
!External dimensions (Units : mm)
C0.6
9.0
16−φ0.5
1.0
5.56
!Features
1) Two colors are available: red and green.
2) Common anode and common cathode
configurations are available.
3) Each segment has independent pin
connections and making static drive is
possible.
4) Excellent visibility.
Uniform brightness.
Wide view angle.
Character shapes cannot be seen when
not illuminated.
0.7
8.0
22.0
(2.5)
(17.5)
Tolerances are ±0.3 unless otherwise noted:
!Selection guide
Emitting color
Red
Green
Common
Anode
LB-402VF
LB-402MF
Cathode
LB-402VP
LB-402MP
!Pin assignments
16
15
14
13
12
11
10
9
+
+
+
+
+
+
+
+
a2
a1
b1 f2
f1
b2
g2
g1
e1
c1 e2
c2
d1
Dig.1
d2
Dig.2
+
+
+
+
+
+
+
+
Pin No. 1
2
3
4
5
6
7
8
Pin No.
1
2
3
4
5
6
7
8
(12.5)
16.0
1.0
10.0
10°
3±0.5
The LB-402FP series were designed to meet
the need for multi-digit numeric displays.
Featuring excellent visibility, these two-digit
LED numeric displays have a character
height of 10mm. A colored cover case is
attached to the surface of the display.
Function
Segment "c1"
Segment "e1"
Segment "d1"
Digit1 Common
Digit2 Common
Segment "d2"
Segment "e2"
Segment "c2"
Pin No.
9
10
11
12
13
14
15
16
Function
Segment "g2"
Segment "a2"
Segment "f2"
Segment "b2"
Segment "b1"
Segment "f1"
Segment "a1"
Segment "g1"
LB-402FP Series
LED displays
!Internal circuit schematic (example of common anode)
a1
15
b1
13
c1
1
d1
3
e1
2
f1
14
g1
16
a2
10
b2
12
c2
8
4
Dig.1 COM
d2
6
e2
7
f2
11
g2
9
5
Dig.2 COM
!Absolute maximum ratings (Ta = 25°C)
Green
Red
Symbol
Parameter
Unit
LB-402VF / VP LB-402MF / MP
Power dissipation
PD
840
840
mA
Power dissipation
PD / seg
60
60
mW / seg
Forward current
IF
20
20
mA
Peak forward current
IFP
60
60
mA ∗
Reverse voltage
VR
5
5
V
Operating temperature
Topr
−25~+75
°C
Storage temperature
Tstg
−30~+85
°C
∗ Pulse width 1ms duty 1 / 5
! Electrical and optical characteristics (Ta = 25°C)
Parameter
Symbol
Green
Red
Conditions
Min.
Typ.
Max.
Min.
Typ.
Unit
Max.
VF
IF = 10mA
−
2.0
2.8
−
2.1
2.8
V
Reverse current
IR
VR = 3V
−
−
100
−
−
100
µA
Peak wavelength
λP
IF = 10mA
−
650
−
−
563
−
nm
Spectral line half
width
∆λ
IF = 10mA
−
40
−
−
40
−
nm
Forward voltage
Not designed for radiation resistance
! Luminous intensity
λP
Type
Min.
Typ.
Max.
Unit
Red
650
LB-402VF
LB-402VP
2.2
5.6
−
mcd
Green
563
LB-402MF
LB-402MP
2.2
5.6
−
mcd
Color
Note : Measured at IF = 10mA
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