High efficiency, two-digit numeric displays
LB-302FP Series
The LB-302FP series were designed to meet the need for multi-digit numeric displays. These two-digit LED numeric displays have a character height of 7.62 mm. Features 1) Height of character : 7.62 mm 2) High efficiency in a compact package. 3) Common anode and common cathode configurations are available for red and green. 4) The package surface is painted black and the segments are milky white. Dimensions (Unit : mm)
15.5 10° 7.0
0.7
C0.5
3.94
(10.16)
Selection guide
Emitting color
Common Anode Cathode
Red LB-302VF LB-302VP
Green LB-302MF LB-302MP
Pin assignments
10 9 8 7 6
Pin No. 1 2 3 4 5 6 7 8 9 10
Function Segment "g" D.P Segment "a" Segment "f" Digit 2 Common Segment "d" Segment "e" Segment "c" Segment "b" Digit 1 Common
+
a f
g
+
+
+
a
+
b
f
g
b
e
d
c Dig.1
e
d
c Dig.2
+
Pin No. 1
+
+
3
+
4
+
2
5
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c ○ 2011 ROHM Co., Ltd. All rights reserved.
5.3±0.5
φ0.5 (2.54)
7.2
Tolerances are ±0.25 unless otherwise noted:
1/3
2011.04 - Rev.B
(10.16)
7.62 15.0
0.7
LB-302FP Series
Internal circuit schematic (example of common cathode)
Pin No.
Data Sheet
10 Dig.1 5 Dig.2
Pin No. 3
a
9 b
8 c
6 d
7 e
4 f
1 g
2 D.P
Absolute maximum ratings (Ta = 25C)
Red Parameter Power dissipation Power dissipation Forward current Peak forward current Reverse voltage Operating temperature Storage temperature Symbol PD PD / seg IF IFP VR Topr Tstg LB-302VF / VP 800 50 15 60∗ 5 −25 to +75 −30 to +85 Green LB-302MF / MP 960 60 20 60∗ 5 Unit mW mW mA mA V °C °C
∗ Pulse width 1ms duty 1 / 5
Electrical and optical characteristics (Ta = 25C)
Parameter Forward voltage Reverse current Peak wavelength Spectral line half width Symbol Conditions VF IR λP Δλ IF = 10mA VR = 5V IF = 10mA IF = 10mA Red − − − − − − − − Green Min. Typ. Max. Min. Typ. Max. 2.0 − 650 40 2.8 100 − − 2.1 − 563 40 2.8 100 − − Unit V μA nm nm
Not designed for radiation resistance.
Luminous intensity
Color Red λP 650 Type LB-302VF / VP Min. 2.2 Typ. 6.3 Max. − − Unit mcd
Green
Note : Measured at IF = 10mA
563
LB-302MF / MP
3.6
9.0
mcd
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c ○ 2011 ROHM Co., Ltd. All rights reserved.
2/3
2011.04 - Rev.B
LB-302FP Series
Electrical and optical characteristic curves
100
Ta=25°C
Data Sheet
10.00
Relative Luminous Intensity
Forward Current:IF(mA)
LB-302MF LB-302MP LB-302VF LB-302VP
Ta=25°C
10
1.00
1
0.10
0.1
1
1.5
2
2.5
3
0.01
1
10 Forward Current:IF(mA)
100
Forward Voltage:VF(V)
Fig.1 Forward Current - Forward Voltage
Fig.2 Relative Luminous Intensity - Forward Current
IF=10mA
IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current
1.6 1.4
)
10
LB-302MF LB-302MP
Relative Luminous Intensity
1.2 1 0.8 0.6 0.4 -25 -15 -5
(
100kHz
300Hz
100Hz
30kHz
10kHz
5
15 25 35 45 55 65 75
1
1
300kHz
10
100
1000
30Hz
3kHz
1kHz
10000
100000
Case Temparature (°C)
Pulse Duration : tw(µs)
Fig.3 Relative Luminous Intensity - Case Temperature
Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( Ι )
IF peak Max. Ratio of Maximum Tolerable peak IF Max. Current to Maximum Forward Current
10
120%
)
LB-302VF LB-302VP
500Hz 200Hz 100Hz 50kHz 20kHz 10kHz
100% 80% 60% 40% 20%
(
5kHz
2kHz
1kHz
Forward Current (%)
1 1
10
100
1000
10000
0% -25 -15 -5
5 15 25 35 45 55 65 75 85 Ambient Temperature(°C)
Pulse Duration : tw(µs)
Fig.5 Ratio of Maximum Tolerable Peak Current - Pulse Duration ( ΙΙ )
Fig.6 Derating
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c ○ 2011 ROHM Co., Ltd. All rights reserved.
3/3
2011.04 - Rev.B
Notice
Notes
Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
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R1120A
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