QEC123 Fairchild Optoelectronics Group, QEC123 Datasheet - Page 3

• Manufacturer Part Number: QEC123
• Description: LED IR EMITTING ALGAAS 880NM 3MM
• Manufacturer: Fairchild Optoelectronics Group
• Series: QEC12xr

Specifications of QEC123

• Current - Dc Forward (if): 50mA
• Radiant Intensity (ie) Min @ If: 39mW/sr @ 100mA
• Wavelength: 880nm
• Voltage - Forward (vf) Typ: 1.7V
• Viewing Angle: 16°
• Orientation: Top View
• Mounting Type: Through Hole
• Package / Case: T-1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

©2001 Fairchild Semiconductor Corporation
QEC121, QEC122, QEC123 Rev. 1.0.1
Typical Performance Curves
5.0
4.0
3.0
2.0
1.0
0.0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.1
10
Figure 3. Normalized Radiant Intensity vs. Forward Current
1
700
10
10
Normalized to:
I
t
Duty Cycle = 4%
T
F
PW
A
= 100mA Pulsed
I
t
Duty Cycle = 4%
T
F
PW
= 25 C
A
Figure 5. Forward Voltage vs. Forward Current
= 20mS
Figure 1. Normalized Intensity vs. Wavelength
Pulsed
= 25 C
= 20mS
750
800
I
I
F
F
– FORWARD CURRENT (mA)
– FORWARD CURRENT (mA)
850
100
100
(nm)
900
950
1,000
1000
1,050
1000
3
Figure 4. Normalized Radient Intensity vs. Ambient Temperature
910
908
906
904
902
900
898
896
894
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-15
-15
0
Figure 2. Peak Wavelength vs. Ambient Temperature
Figure 6. Forward Voltage vs. Ambient Temperature
10
0
0
20
15
15
T
T
T
30
A
A
A
– AMBIENT TEMPERTURE ( C)
– AMBIENT TEMPERTURE ( C)
– AMBIENT TEMPERTURE ( C)
30
30
40
50
45
45
60
60
60
I
F
= 20mA DC
70
75
75
Normalized to:
I
t
Duty Cycle = 4%
T
I
t
Duty Cycle = 4%
F
PW
F
PW
A
= 20mA Pulsed
= 20mA Pulsed
80
= 25 C
= 20mS
= 20mS
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90
90
90
100
105
105