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Ordering number : EN5859A
DL-3148-023
Overview
DL-3148-023 is 635 nm (Typ.) AlGaInP laser diode with low threshold
current. The low threshold current and short wavelength are achieved by
the use of a strained multiple quantum well active layer. The lasing
wavelength is 635 nm (Typ.) which is 8 times brighter than that of 670 nm
lasers. DL-3148-023 is suitable for battery powered laser pointers due to
its low operating current and voltage.
Features
•Short wavelength : 635 nm (Typ.)
•Low threshold current : Ith = 20 mA (Typ.)
•Output power : 3 mW CW
•Low operating voltage : Vop = 2.2 V (Typ.)
•Small package : 5.6 mmØ
Absolute Maximum Ratings at Tc=25°C
Parameter Symbol Ratings Unit
Red Laser Diode
DL-3148-023
AlGaInP Laser Diode
Package Dimensions
0
ø5.6–0.025
ø4.4
ø3.55±0.1
ø1.6
Effective window diameter 1.0min.
1 3
0.25
1.27±0.08
0.5max.
Pin No.
123
5.6mm østem
2
1.0±0.1
Tolerance : ±0.2
Unit : mm
Top view
LD facet
ø1.4max.
3–ø0.45±0.1
ø2.0
0.4±0.1
1.2±0.1
3.5±0.5
6.5±1.0
Light Output Po 3 mW
Reverse Voltage
Laser
PIN 30
VR
2
Operating Temperature T opr ---10 to +40 °C
V
Electrical Connection
13
LD PD
Storage T emperature Tstg ---40 to +85 °C
Electrical and Optical Characteristics at Tc=25°C
– power supply system
Parameter Symbol Condition Min. Typ. Max. Unit
Threshold Current Ith CW ---2040mA
Operating Current Iop Po=3mW ---2545mA
Operating Voltage Vop Po=3mW --- 2.2 2.4 V
Lasing W avelength
Beam ❈) Perpendicular
Divergence Parallel
λ
p Po=3mW --- 635 640 nm
θ
⊥ Po=3mW 25 35 40 deg.
θ
// Po=3mW 6 8 10 deg.
Off Axis Perpendicular ∆θ ⊥ ---------±3 deg.
Angle Parallel ∆θ // ---------±3 deg.
Differential Efficiency dPo/dIop ------ 0.5 --- mW/mA
Monitoring Output Current Im Po=3mW 0.03 0.15 0.5 mA
Astigmatism As Po=3mW ---8---µm
2
❈) Full angle at half maximum note : The above product specifications are subject to change without notice.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
N2898 GI / N2897 GI, (IM
)
No.5859 1/3
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0 20406080100
0
1
2
3
4
Output power vs. Forward current
Forward current IF (mA)
Output power Po (mW)
10
100
01020304050
Threshold current vs. Temperature
Threshold current Ith (mA)
Temperature Tc (°C)
80
60
40
20
0
0.1
0.2
0.3
0.4
0.5
0123
Monitor current Im (mA)
Monitor current vs. Output power
Output power Po (mW)
0
0.2
0.4
0.6
0.8
1.0
-40 -30 -20 -10 0 10 20 30 40
Beam divergence
Relative intensity
Angle θ (deg.)
633
634
635
636
637
638
639
10 20 30 40
Lasing wavelength vs. Temperature
Lasing wavelength λp (nm)
Temperature Tc (°C)
630 632 634 636 638 640
Relative intensity
Output power vs. Lasing wavelength
Po=3mW
Po=2mW
Po=1mW
Lasing wavelength λp (nm)
Tc=25°C
632
352515
25°C
Tc=25°C
Vr(PD)=5V
Po=3mW
Po=3mW
Tc=25°C
θ ⊥
θ //
40°C
Characteristics
DL-3148-023
No.5859 2/3
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DL-3148-023
CAUTION
1. No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster / crime-prevention equipment or
the like, and the failure of which may directly or indirectly cause injury, death or property loss.
2. Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1) Accept full responsibility and indemnify and defend SANYO ELECTRIC CO.,LTD., it’s affiliates,
subsidiaries and distributors or any of their officers and employees, jointly and severally, against any
and all claims and litigation and all damages, costs and expenses associated with such use.
2) Not impose any responsibility for any fault or negligence which may be cited in any such claim or
litigation on SANYO ELECTRIC CO., LTD., it’s affiliates, subsidiaries and distributors or any of
their officers and employees jointly or severally.
3. Information (including circuit diagrams and circuit parameters) disclosed herein is for example only; it is not
guaranteed for mass production, SANYO believes the information disclosed herein is accurate and reliable,
but no guarantees are made or implied regarding it’s use or any infringements of intellectual property rights
or other rights of third parties.
Precautionary instructions in handling gallium arsenic products
Special precautions must be taken in handling this product because it contains, gallium arsenic, which is
designated as a toxic substance by law. Be sure to adhere strictly to all applicable laws and regulations
enacted for this substance, particularly when it comes to disposal.
Manufactured by ; Tottori SANYO Electric Co., Ltd.
Electronics Device Bussiness Headquaters LED Division
5-318, Tachikawa-cho, Tottori City, 680-8634 Japan
TEL: +81-857-21-2137 FAX: +81-857-21-2161
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