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
BC
C-
-A
A2
25
56
63
33
3A
A-
-2
2
Ver.1.0 Page 1 of 3
SINCE 1981
● Package Dimensions :
63.4(2.50)
(.020)
FILM-0
+0.5
2.54x36=91.44(3.600)
205.0(8.071)
217.0(8.543)
+-------+
74.0(2.913) 67.3(2.650)
10.80(.425)
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. 2.50 inch (63.40mm) Digit Height.
2. Continuous uniform segments.
3. Low power requirement.
4. Excellent characters appearance.
5. Solid state reliability.
6. Direct drive common anode.
● Description :
1. The BC-A25633A-2 is a 63.4mm(2.50")
high four digit seven segments clock display.
2. This product use super red chips, which
are made from GaAlAs on GaAs substrate
3. Affix red film on surface.
● 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
BC
C-
-A
A2
25
56
63
33
3A
A-
-2
2
Ver.1.0 Page 2 of 3
SINCE 1981
● Absolute Maximum Ratings(Ta=25℃)
Parameter Symbol Rating Unit
Power Dissipation Per Segment Pd 80 mW
Forward Current Per Segment IF 30 mA
Peak Forward Current Per Segment IFP
(Duty 1/10, 1KHZ) 150 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 - 1.7 2.5 V
Luminous Intensity Per Segment Iv IF=10mA - 9.0 - mcd
Reverse Current Per Segment IR VR=5V - - 100
µA
Peak Wave Length λp IF=10mA - 660 - nm
Dominant Wave Length λd IF=10mA - 643 - nm
Spectral Line Half-width ∆λ IF=10mA - 20 - 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
BC
C-
-A
A2
25
56
63
33
3A
A-
-2
2
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
Fig.4 Relative Luminous
Forward Current(mA)
Forward Voltage (V)
Relative Luminous Intensity
0
(@20mA)
0.5
1.5
1.0
Forward Current (mA)
2.0
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
540
0
0.5
1.0
570 600
Ambient Temperature
Ambient Temperature
Derating Curve VS.
Fig.5 Forward Current
Ambient Temperature Ta( C)
Ambient Temperature Ta( C)
0
20
Forward Current(mA)
10
30
40
806020 40
Relative Luminous Intensity
(@20mA)
0.5
50
-40
0
1.5
1.0
3.0
2.5
2.0
0-20 20
120100
40 60
Fig.3 Relative Luminous
630 660
Intensity VS.
690 720
