Hamamatsu L7558 Infrared led Datasheet

Infrared LED
L7558 series
High-speed, high-power infrared LED for free
space optics
The L7558 series LEDs were developed for free space optical communications such as image data signal transmission, and
operate at high speeds of 50 MHz.
The L7558 delivers a high output of 14 mW and is used in combination with a light projection lens. The L7558-01 is sealed in
a metal package capped with a glass lens that produces an angle of view of ±7° (full angle at half maximum).
Both types employ a metal stem package that gives higher reliability than plastic package devices.
Features
Applications
High-speed response: 50 MHz typ. (IF=50 mA)
FSO (free space optics)
High radiant output power
L7558
: 14 mW typ. (IF=50 mA)
L7558-01: 7 mW typ. (IF=50 mA)
High reliability
Absolute maximum ratings (Ta=25 °C)
Parameter
Forward current
Reverse voltage
Symbol
IF
VR
Pulse forward current
IFP
Operating temperature
Storage temperature
Topr
Tstg
Condition
Value
100
5
Unit
mA
V
1.0
A
-30 to +85
-40 to +100 *
°C
°C
Pulse width=10 μs
Duty ratio=1%
* Guaranteed to resist temperature cycle test of up to 5 cycles.
Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the
product within the absolute maximum ratings.
Electrical and optical characteristics (Ta=25 °C)
Parameter
Peak emission wavelength
Spectral half width
Forward voltage
Pulse forward voltage
Reverse current
Radiant flux
Radiant illuminance
Cut-off frequency
Symbol
λp
Δλ
VF
VFP
IR
φe
PE
fc
Condition
IF=50 mA
IF=50 mA
IF=50 mA
IF=1 A
VR=5 V
IF=50 mA
IF=50 mA
IF=50 mA ± 1mAp-p
Min.
820
11
35
L7558
Typ.
850
50
1.45
3.4
14
1.5
50
www.hamamatsu.com
Max.
880
1.60
4.3
10
-
Min.
820
5.5
35
L7558-01
Typ.
Max.
850
880
50
1.45
1.60
3.4
4.3
10
7.0
4.0
50
-
Unit
nm
nm
V
V
μA
mW
mW/cm2
MHz
1
Infrared LED
L7558 series
Emission spectrum
Radiant flux vs. forward current
(Typ. Ta=25 °C, IF=50 mA)
100
(Typ. Ta=25 °C, tw=100 μs, 0.1%)
1000
Radiant flux (mW)
Relative radiant output (%)
80
60
40
100
L7558
10
L7558-01
20
0
700
800
900
1
1000
1
10
100
Forward current (mA)
Wavelength (nm)
KLEDB0153EA
KLEDB0154EB
Forward current vs. forward voltage
100
10
1.0
(Typ. Ta=25 °C, IF=50 mA ± 1 mAp-p)
5
Relative output (dB)
Forward current (mA)
Frequency characteristics
(Typ. Ta=25 °C, tw=100 μs, 1%)
1000
1000
0
-5
-10
1.5
2.0
2.5
3.0
3.5
1
10
100
1000
Frequency (MHz)
Forward voltage (V)
KLEDB0155EA
KLEDB0319EA
2
Infrared LED
L7558 series
Directivity
Radiant output vs. ambient temperature
(Typ. Ta=25 °C)
20°
10°
0°
10°
20°
100%
30°
30°
L7558
L7558-01
40°
60%
50°
50°
40%
60°
60°
70°
70°
20%
Relative radiant output (dB)
+1
80%
40°
(Typ. IF=50 mA)
+2
0
-1
-2
-3
-4
80°
80°
90°
90°
-5
-40
Relative radiant output (%)
-20
0
20
40
60
80
Ambient temperature (°C)
KLEDB0066EA
KLEDB0156EA
Allowable forward current vs. ambient temperature
Allowable forward current vs. duty ratio
(Ta=25 °C)
10
100
Allowable forward current (A)
Relative allowable forward current (%)
100
80
60
40
20
0
-40
-20
0
20
40
60
80
100
Pulse width=1 μs
1
10 μs
100 μs
0.1
0.01
0.01
0.1
1
10
100
Duty ratio (%)
Ambient temperature (°C)
KLEDB0027EB
KLEDB0157EB
3
Infrared LED
L7558 series
Dimensional outlines (unit: mm)
L7558-01
ϕ5.4 ± 0.1
ϕ5.4 ± 0.2
2.3 ± 0.3
L7558
13.5
ϕ0.45
lead
ϕ2.54 ± 0.2
6.65 ± 0.2
4.5 ± 0.2
ϕ0.45
lead
ϕ4.65 ± 0.1
13.5
1.12 ± 0.1
Clear epoxy resin ϕ4.2 ± 0.1
ϕ2.54 ± 0.2
Common to case
KLEDA0009ED
Common to case
KLEDA0052EB
Related information
www.hamamatsu.com/sp/ssd/doc_en.html
Precautions
∙ Disclaimer
∙ Metal, ceramic, plastic products
Information described in this material is current as of November, 2015.
Product specifications are subject to change without prior notice due to improvements or other reasons. This document has been carefully prepared and the
information contained is believed to be accurate. In rare cases, however, there may be inaccuracies such as text errors. Before using these products, always
contact us for the delivery specification sheet to check the latest specifications.
The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that
one year period. However, even if within the warranty period we accept absolutely no liability for any loss caused by natural disasters or improper product use.
Copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission.
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China: Hamamatsu Photonics (China) Co., Ltd.: B1201, Jiaming Center, No.27 Dongsanhuan Beilu, Chaoyang District, Beijing 100020, China, Telephone: (86) 10-6586-6006, Fax: (86) 10-6586-2866
Cat. No. KLED1009E04 Nov. 2015 DN
4
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