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○
c 2009 ROHM Co., Ltd. All rights reserved. 2009.01 - Rev.
A
660nm / 780nm Dual Wave Low Power Lasers
RLD2WMFL1
A long-run product with market-proved high reliability. Ma tching to various needs.
zApplications zDimensions (Unit : mm)
DVD player, ROM
etc.
zFeatures
1) DVD / CD optical power output : CW7mW / CW7mW
2) Single mode
3) Excellent temperature characteristics, High ESD resistant
(T wice compared with the past)
4) Slim, quantity heat dissipation frame package adoption
zA bsolute maximum ratings (Tc=25°C)
660nm
Parameter
Output
Laser
Operating temperature
Storage temperature
P
O
V
R
V
R
(PIN)
Tstg
Top
Photodiode
7
2
30
−30 to +75
−40 to +85
mW
V
V
Symbol Limits Unit
°C
°C
Reverse
voltage
780nm
Parameter
Output
Laser
Operating temperature
Storage temperature
P
O
V
R
V
R
(PIN)
Tstg
Top
Photodiode
7
2
30
−30 to +75
−40 to +85
mW
V
V
Symbol Limits Unit
°C
°C
Reverse
voltage
Equivalent circuit diagram
5.2
4.1max
2-R0.5min
2-R0.5min
3.7max
4-0.45max
4-0.35
1
4321
3.8
0.5
0.7
1.2max
0.22
(Emitting Point:Y)
0.6
1.4
0.4
(Emitting Point:Z)
0.6
0.75
2.7
3.055
1.75
(4)
650nmLD
PD
(1)
(2)
780nmLD
(3)
RLD2WMFL1 Data Sheet
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c 2009 ROHM Co., Ltd. All rights reserved. 2009.01 - Rev.
A
zElectrical and optical characteristics (Tc=25°C)
660nm
Parameter Symbol Min. Typ. Max. Unit Conditions
Threshold current
Operating current
Operating voltage
Differential efficiency
Monitor current
Parallel divergence angle
Perpendicular divergence angle
Parallel deviation angle
Perpendicular deviation angle
Peak emission wavelength
Astigmatism
I
th
mA−13 30 −
2mW/(I(5mW)−I(3mW))
I
op
mA−19 45
P
O
=5mW
P
O
=5mW
P
O
=5mW
P
O
=5mW
I
m
mA0.05 0.15 0.35
θ
//
deg6 8.5 12
θ
⊥
deg20 27.5 35
∆φ
//
deg−30 3
λnm645 660 664 P
O
=5mW
As µm−−10 P
O
=5mW
∆φ
⊥
deg−40 4
V
op
V−2.3 2.7
ηmW/mA0.6 0.85 1.2
780nm
Parameter Symbol Min. Typ. Max. Unit Conditions
Threshold current
Operating current
Operating voltage
Differential efficiency
Monitor current
Parallel divergence angle
Perpendicular divergence angle
Parallel deviation angle
Perpendicular deviation angle
Emission point accuracy
Ith mA−12 30 −
2mW/(I(5mW)−I(3mW))
Iop mA−18 40
PO=5mW
PO=5mW
PO=5mW
PO=5mW
ImmA0.05 0.20 0.40
θ // deg6 9.5 13
θ ⊥deg23 29.5 36
∆φ // deg−30 3
Peak emission wavelength λnm770 785 810 PO=5mW
Astigmatism As µm−−10 PO=5mW
∆φ ⊥deg−40 4
∆Y
∆Z
∆Xµm−100 0 100 −
Vop V−1.8 2.3
ηmW/mA0.6 0.75 1.2
Common
Parameter Symbol Min. Typ. Max. Unit Conditions
Emission point distance −µm107 110 113 −
RLD2WMFL1 Data Sheet
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c 2009 ROHM Co., Ltd. All rights reserved. 2009.01 - Rev.
A
zElectrical and optical characteristics curves (Tc=25°C)
0
1
2
3
4
5
6
7
02010 4030 5
0
If
(mA)
Po
(mW)
Tc=25°C
50°C
60°C
70°C
75°C
Fig.1 780nm Optical output
vs. operating current Fig.2 660nm Optical output
vs. operating current
0
1
2
3
4
5
6
7
02010 4030 5
0
If
(mA)
Po
(mW)
Tc=25°C
50°C
60°C
70°C
75°C
7
1
2
3
4
5
6
00 0.1 0.2 0
.3
OPTICAL INTENSITY : PO (mW)
MONITOR CURRENT : Im (mA)
Fig.3 Monitor current
vs. optical output
660nm
780nm
10%
20%
30%
40%
50%
0%
freguency
ESD [V]
Fig.4 660nm ESD reliability resu
lt
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
Forward direction
Machine Model (200pF, 0Ω),
Initial Iop (Po=5mW) x 1.2 is
considered as destructive voltage.
Appendix-Rev4.0
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FAX : +81-75-315-0172
Appendix
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM
CO.,LTD.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you
wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM
upon request.
Examples of application circuits, circuit constants and any other information contained herein illustrate the
standard usage and operations of the Products. The peripheral conditions must be taken into account
when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document. However, should
you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no re-
sponsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and examples
of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to
use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no re-
sponsibility whatsoever for any dispute arising from the use of such technical information.
The Products specified in this document are intended to be used with general-use electronic equipment
or devices (such as audio visual equipment, office-automation equipment, communication devices, elec-
tronic appliances and amusement devices).
The Products are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or
malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard against the
possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as
derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your
use of any Product outside of the prescribed scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or system
which requires an extremely high level of reliability the failure or malfunction of which may result in a direct
threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment,
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no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intend-
ed to be used for any such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may be controlled under
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