Square Type
Unit: mm
4.0 mm × 2.0 mm Series
2.0 ± 0.2
4.0 ± 0.2
Conventional Part No.
Global Prat No.
Lighting Color
LN251RPX ················ LNG251RKR ············ Red
LN351GPX ··············· LNG351GKG ··········· Green
LN451YPX ··············· LNG451YKX ··········· Amber
2 − 0.6 Max
2 − 0.45 ± 0.1
0.45 ± 0.1
■ Absolute Maximum Ratings (Ta = 25°C)
Lighting Color PD(mW) IF(mA) IFP(mA) VR(V) Topr(°C) Tstg(°C)
Red
Green
Amber
70
90
90
25
30
30
150
150
150
4
4
4
−25 +85 −30 +100
−25 +85 −30 +100
−25 +85 −30 +100
2.54
1
2
Pulse width 1 msec. The condition of IFP is duty 10%, Pulse width 1 msec
1: Anode
2: Cathode
■ Electro−Optical Characteristics (Ta = 25°C)
Conventional Lighting
Lens Color
IO
VF
λP
∆λ
IR
Part No.
LN251RPX
LN351GPX
LN451YPX
Unit
Color
Typ Min
IF
Typ Max Typ Typ
IF
20
20
20
mA
Max VR
Red
Red Diffused
0.5
0.20
1.00
0.75
15
20
20
2.2
2.2
2.2
V
2.8
2.8
2.8
V
700 100
5
10
10
4
4
4
Green Green Diffused 3.0
Amber Amber Diffused 2.0
565
590
nm
30
30
nm
mcd mcd mA
µA
V
IO IF
IF VF
IO Ta
10
100
5
3
50
30
500
300
10
1
100
0.5
0.3
5
3
50
30
0.11
3
5
10
30 50 100
1
10
−20
1.6
1.8
2.0
2.2
2.4
0
20
40
60
80 100
Ambient Temperature
Forward Current
Forward Voltage
IF Ta
Relative Luminous Intensity
Wavelength Characteristics
50
40
30
20
10
0
LN351GPX
LN451YPX
100
80
Directive Characteristics
LN251RPX
0°
10°
10°
20°
20°
30°
30°
40°
40°
80°
60°
40°
20°
60
50°
50°
60°
70°
80°
60°
70°
40
20
0
80°
90°
90°
500
600
700
800
0
40
60
80
100
100 80 60 40 20
0
20 40 60 80 100
20
Wavelength
Relative Luminous Intensity
Ambient Temperature
207