B
BR
RI
IG
GH
HT
T
L
LE
ED
D
E
EL
LE
EC
CT
TR
RO
ON
NI
IC
CS
S
C
CO
OR
RP
P.
.
B
BS
S-
-C
C3
34
45
5R
RD
D-
-B
B
Ver.1.0 Page 1 of 3
SINCE 1981
● Package Dimensions :
Notes:
1. All dimensions are in millimeters(inches).
2. Tolerance is ±0.25mm(.01")unless otherwise
specified.
3. Specifications are subject to change without
notice.
● Features :
1. 0.39 inch (10.00mm) Digit Height.
2. Continuous uniform segments.
3. Low power requirement.
4. Excellent characters appearance.
5. Solid state reliability.
6. Categorized for luminous intensity.
7. Direct drive common cathode.
● Description :
1. The BS-C345RD-B is a 10.00mm
(0.39") high single digit 14-segments
alphanumeric display.
2. This product use bright red chips, which
are made from GaP on GaP substrate.
3. This product have a black face and
white segments.
4. This product doesn't contain restriction
substance, comply ROHS standard.
● Internal Circuit Diagram :
B
BR
RI
IG
GH
HT
T
L
LE
ED
D
E
EL
LE
EC
CT
TR
RO
ON
NI
IC
CS
S
C
CO
OR
RP
P.
.
B
BS
S-
-C
C3
34
45
5R
RD
D-
-B
B
Ver.1.0 Page 2 of 3
SINCE 1981
● Absolute Maximum Ratings(Ta=25℃)
Parameter Symbol Rating Unit
Power Dissipation Per Segment Pd 40 mW
Forward Current Per Segment IF 15 mA
Peak Forward Current Per Segment IFP
(Duty 1/10, 1KHZ) 50 mA
Reverse Voltage Per Segment VR 5 V
Operating Temperature Topr -40℃~80℃ -
Storage Temperature Tstg -40℃~85℃ -
Soldering Temperature
(1/16" From Body) Tsol 260℃ For 5 Seconds -
● Electrical And Optical Characteristics(Ta=25℃)
Parameter Symbol Condition Min. Typ. Max. Unit
Forward Voltage Per Segment Vf IF=10mA - 2.1 2.5 V
Luminous Intensity Per Segment Iv IF=10mA - 1.2 - mcd
Reverse Current Per Segment IR VR=5V - - 100 µA
Peak Wave Length λp IF=10mA - 700 - nm
Dominant Wave Length λd IF=10mA 650 nm
Spectral Line Half-width ∆λ IF=10mA - 100 - nm
B
BR
RI
IG
GH
HT
T
L
LE
ED
D
E
EL
LE
EC
CT
TR
RO
ON
NI
IC
CS
S
C
CO
OR
RP
P.
.
B
BS
S-
-C
C3
34
45
5R
RD
D-
-B
B
Ver.1.0 Page 3 of 3
SINCE 1981
● Typical Electro-Optical Characteristics Curves
(25℃ Ambient Temperature Unless Otherwise Noted)
Fig.1 Relative Radiant Intensity VS. Wavelength
Wavelength(nm)
Forward Voltage
Forward Current (mA)
Fig.4 Relative Luminous
Forward Current(mA)
Forward Voltage (V)
Relative Luminous Intensity
0.0
(@20mA)
1.0
2.0
3.0
0
30
10
20
40
50
4010 20 30 50
Forward Current
4
Intensity VS.
123 5
Fig.2 Forward Current VS.
Relative Radiant Intensity
550
0
0.5
1.0
600 650
Ambient Temperature
Ambient Temperature
Derating Curve VS.
Fig.5 Forward Current
Ambient Temperature Ta( C)
Ambient Temperature Ta( C)
0
10
Forward Current(mA)
5
15
20
20 40 60 80
0.5
25
-40
0
1.5
1.0
3.0
2.5
2.0
0-20 20
120100
40 60
Fig.3 Relative Luminous
700 750
Intensity VS.
800 850
(@20mA)
Relative Luminous Intensity
0
00
