Standard Bright LED Lamps
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086
26
Tel:408.523.8200 • Fax:408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
1/5/98
Red
Cathode
Green
Cathode
5.33
4.85
1.0 ± 0.222.5 Min1.5
1.0 Max
2.54 ± 0.06
0.5 square x 2
5.84 ± .15
8.64 ± 0.25
AND2451RGL
Dual Color
5.0mm Round Bi-Color, Bi-Polar Lamp
Features
• Dual color indicator: Red/Green
• Two leads
• Low drive current
• Wide viewing angle: 120°
Optical Characteristics (T = 25°C)
Part
Number Source Color Lens
Desc.
Luminous Intensity
@ 10 mA
(mcd)
Emitting Lens Min. Typ.
AND2451RGL GaAsP/GaP Red White Diffused 0.7 1.2
GaP Green White Diffused 0.8 2.7
Precaution
Please be careful of the following:
1. Soldering temperature: 260°C max; Soldering time: 3 sec. max; Soldering portion of lead: up to 2 mm from the body of the device.
2. The lead can be formed up to 5 mm from the body of the device without forming stress. Soldering should be performed after the
lead forming.
Absolute Maximum Ratings (T
A
= 25°C)
Characteristics Symbol Rating Unit
GaAsP/GaP
(Red) GaP
(Green)
Forward Current I
F
20 20 mA
Rev erse Voltage V
R
55V
Power Dissipation P
D
70 70 mW
Operating Temperature T
Opr
-25 to +85 °C
Storage Temperature Range T
Stg
-25 to +100 °C
Electro-Optical Characteristics (T
A
= 25°C)
Characteristics Symbol Test Condition
Rating
Unit
GaAsP/GaP
(Red) GaP
(Green)
Typ. Max. Typ. Max.
Forw ard V oltage V
F
I
F
= 10mA 2.1 3.0 2.1 3.0 V
Reverse Current I
R
V
R
= 5 V – 100 – 100 µA
Peak Emission Wavelength
λ
pI
F
= 10mA 700 – 567 – nm
Spectral Line Half Width
λ
I
F
= 10mA 100–25–nm
Weight: 0.31 g Unit: mm
1/5/98 Purdy Electronics Corporation 5-27
AND2451RGL
Dual Color Standard Bright LED Lamps
2.31.7 1.8 1.9 2.0 2.1 2.2
1
3
2
5
10
30
20
50
Forward Voltage VF (V)
IF vs. VF
Forward Current IF (mA)
TA = 25°C
Red
2.31.7 1.8 1.9 2.0 2.1 2.2
1
3
2
5
10
30
20
50
Forward Voltage VF (V)
IF vs. VF
Forward Current IF (mA)
TA = 25°C
Green
5
2
1
0.5
0.2
0.1
1
Red (R)
2510
Forward Current IF (mA)
This graph shows relative luminous vs. forward current.
At three points (IF = 10, 15, 20mA) each relation is normalized.)
Relative Luminous Intensity IV
20 50
IV vs. IF
5
2
1
0.5
0.2
0.1
1
Green
2510
Forward Current IF (mA)
Relative Luminous Intensity IV
20 50
IV vs. IF
AND2451RGL
Dual Color Standard Bright LED Lamps
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94086
28
Tel:408.523.8200 • Fax:408.733.1287 • email@purdyelectronics.com • www.purdyelectronics.com
1/5/98
Relative Luminous Intensity vs. Wavelength
IV vs. TCIV vs.TA
Wavelength (nm)
1.0
0.8
0.6
0.4
0.2
0
520 540 560 580 600 620 640 660 680 700 720 740 760 780 800
Relative Luminous Intensity
T
A
= 25°
Red (R)
Green
Green/Red
Ambient Temperature TA (°C)
Allowable Forward Current IF (mA)
40
30
20
10
00 20406080100
3
2
1
0.5
0.4
0.3
-200 20406080
Case Temperature TC (°C)
Relative Luminous Intensity IV
neerG
d
e
R
