Package Dimensions and Internal Circuit：
Notes:
1. All dimensions are in millimeters(inches), Tolerance is + 0.25mm(0.01inch)unless other wise noted.
2. Specifications are subject to change without notice.
3. The gap between the reflector and PCB shall not exceed 0.25mm.
Table1:
| Four Digit 7 Segment LED Display, Digit Height:10.00mm(0.39 inch), External Dimensions: 40.18x12.80x7.00mm (LxWxHmm) |
| Part No. |
Chip |
IV@IF=20mA |
Iv@IF=20mA |
| Common Cathode |
Common Anode |
Material |
Color |
WLD |
One Seg |
One DP |
| Min. |
Typ. |
Min. |
Typ. |
| LD3942AR |
LD3942BR |
GaAlAs |
Super Red |
640 |
8 |
10 |
8 |
10 |
| LD3942AD |
LD3942BD |
GaAlAs |
Hi-Red |
640 |
18 |
25 |
18 |
25 |
| LD3942AO |
LD3942BO |
GaAsP |
Orange |
625 |
7 |
9 |
7 |
9 |
| LD3942AY |
LD3942BY |
GaAsP |
Yellow |
588 |
8 |
10 |
8 |
10 |
| LD3942AG |
LD3942BG |
GaP |
Green |
568 |
7 |
9 |
7 |
9 |
| LD3942AUR |
LD3942BUR |
AlGaInP |
Ultra Red |
640 |
30 |
45 |
30 |
45 |
| LD3942AUO |
LD3942BUO |
AlGaInP |
Ultra Orange |
625 |
45 |
60 |
45 |
60 |
| LD3942AUA |
LD3942BUA |
AlGaInP |
Ultra Amber |
605 |
30 |
45 |
30 |
45 |
| LD3942AUY |
LD3942BUY |
AlGaInP |
Ultra Yellow |
595 |
30 |
45 |
30 |
45 |
| LD3942AUG |
LD3942BUG |
AlGaInP |
Ultra Green |
573 |
30 |
45 |
30 |
45 |
| LD3942APG |
LD3942BPG |
InGaN |
Pure Green |
525 |
120 |
300 |
120 |
300 |
| LD3942AUB |
LD3942BUB |
InGaN |
Ultra Blue |
470 |
30 |
45 |
30 |
45 |
| LD3942AUW |
LD3942BUW |
InGaN |
Ultra White |
\ |
100 |
120 |
100 |
120 |
| Unit: |
\ |
\ |
\ |
nm |
mcd |
mcd |
mcd |
mcd |
Table2:
| Color |
Electrical optical Characteristics[1] |
Absolute Maximum Ratings[1] |
| Forward Voltage@ IF=20mA |
Reverse
Current
VR=5V |
Power Dissipation |
DC Forward Current |
Peak Forward Current[2] |
| Typ. |
Max. |
| Super Red |
Per Seg. |
1.8 |
2.2 |
30 |
60 |
25 |
100 |
| Per DP |
1.8 |
2.2 |
30 |
60 |
25 |
100 |
| Hi-Red |
Per Seg. |
1.8 |
2.2 |
30 |
60 |
25 |
100 |
| Per DP |
1.8 |
2.2 |
30 |
60 |
25 |
100 |
| Orange |
Per Seg. |
2.1 |
2.5 |
30 |
80 |
30 |
100 |
| Per DP |
2.1 |
2.5 |
30 |
80 |
30 |
100 |
| Yellow |
Per Seg. |
2.1 |
2.5 |
30 |
80 |
30 |
100 |
| Per DP |
2.1 |
2.5 |
30 |
80 |
30 |
100 |
| Green |
Per Seg. |
2.2 |
2.5 |
30 |
80 |
30 |
100 |
| Per DP |
2.2 |
2.5 |
30 |
80 |
30 |
100 |
| Ultra Red |
Per Seg. |
1.9 |
2.6 |
30 |
60 |
30 |
100 |
| Per DP |
1.9 |
2.6 |
30 |
60 |
30 |
100 |
| Ultra Orange |
Per Seg. |
2 |
2.6 |
30 |
65 |
30 |
100 |
| Per DP |
2 |
2.6 |
30 |
65 |
30 |
100 |
| Ultra Amber |
Per Seg. |
2 |
2.6 |
30 |
65 |
30 |
100 |
| Per DP |
2 |
2.6 |
30 |
65 |
30 |
100 |
| Ultra Yellow |
Per Seg. |
2 |
2.6 |
30 |
65 |
30 |
100 |
| Per DP |
2 |
2.6 |
30 |
65 |
30 |
100 |
| Ultra Green |
Per Seg. |
2.1 |
2.6 |
30 |
75 |
30 |
100 |
| Per DP |
2.1 |
2.6 |
30 |
75 |
30 |
100 |
| Pure Green |
Per Seg. |
3.5 |
4 |
30 |
110 |
30 |
100 |
| Per DP |
3.5 |
4 |
30 |
110 |
30 |
100 |
| Ultra Blue |
Per Seg. |
3.5 |
4 |
30 |
120 |
30 |
100 |
| Per DP |
3.5 |
4 |
30 |
120 |
30 |
100 |
| Ultra White |
Per Seg. |
3.5 |
4 |
30 |
120 |
30 |
100 |
| Per DP |
3.5 |
4 |
30 |
120 |
30 |
100 |
| Unit: |
\ |
V |
V |
uA |
mW |
mA |
mA |
Notes:
1. At Ta=25 deg.
2. Peak forward current at 1/10 Duty Cycle, 0.1ms Pulse
